chore: bump version to 1.5.5

* fix(replay): repair saved-workstream tool result rendering + extend audit-trail decoration

Loading a saved workstream silently dropped tool results and missed
verdict / output-guard / truncation signals on replay. Root cause was
in `Pane.prototype.replayHistory`: an assistant message carrying both
content and tool_calls cleared the `lastToolBlock` anchor before the
following tool-result iteration could attach. The fix reorders content
to render before the tool block (matching live SSE order) and
restructures the tool-result branch to anchor by `data-call-id` so
multi-tool batches render `[hdr A][out A][hdr B][out B]` rather than
bunching outputs at the bottom.

Beyond the bug, replay now reaches near-parity with the live UX:

- Persisted intent verdicts and output_assessments flow through both
  the SSE replay (`_build_history`) and the `/history` REST endpoint
  used by coord. Single shared helper module owns the wire shape.
- Memory/recall calls persist instead of being filtered at storage
  time — full audit trail; UI dims them by default with hover-reveal
  so heavy memory usage doesn't crowd the narrative.
- Truncation indicator surfaces as a sibling pill (consistent across
  interactive + coord) when a tool result hit the 2000-char cap.
- `replayHistory` wraps DOM work in `aria-busy` so screen readers
  don't get a chatty announce-flood on long replays.
- `_build_history`'s storage I/O moves off the event loop via a new
  `events_replay_prepare` async hook for the SSE path; other async
  callers wrap in `asyncio.to_thread`.

Coord parity:

- `/history` REST endpoint decorates tool_calls with verdict +
  output_assessment + truncation flag (was previously raw
  `load_messages` output).
- Coord JS stamps `judge_verdict` / `heuristic_verdict` from
  history-loaded `tc.verdict` so the existing batch render paints
  the persisted pill, seeds the verdict cache to dedupe later live
  SSE events, and emits an inline `.coord-tool-row-warning` chip
  per call instead of a generic chat line.
- Memory/recall dim rule mirrored on `.coord-tool-row[data-tool-name=...]`.

* fix(replay): address PR #461 review feedback + raise tool-result storage cap

Copilot review feedback:

- Sibling-chain dim rule (memory/recall) now adds :focus-within
  alongside :hover for .tool-output / .media-embed / .output-warning
  / .tool-output-truncated — keyboard users tabbing into a faded
  subtree now get full opacity.
- ``cfg.open_post_load`` is now invoked via ``await asyncio.to_thread``
  so its sync ``_build_history`` call (storage I/O for verdict
  indexes + message reconstruction) doesn't block the event loop on
  every workstream open. Mirrors the SSE replay path that's already
  protected via ``events_replay_prepare``.
- Replaced the hardcoded ``2000`` literal in server.py and session.py
  with ``TOOL_RESULT_STORAGE_CAP`` from the shared decoration module
  so the UI truncation-pill detection can't silently desync from the
  storage write side.

While here:

- Raised ``TOOL_RESULT_STORAGE_CAP`` from 2000 → 10000. A 2000-char
  clip routinely cut grep / file-read bodies mid-line, leaving the
  audit trail useless for retrospective debugging. FTS5 + row size
  grow proportionally; the per-tool upper bound is still bounded
  upstream by ``_truncate_output``'s context-budget clamp.
- Updated the user-visible truncation-pill tooltip on both
  interactive and coord to reflect the new cap.
- ``test_decorates_tool_calls_and_marks_truncated`` now references
  the constant instead of a literal so it stays correct on future
  cap changes.

Dockerfile

@@ -8,7 +8,7 @@ FROM python:3.14-slim
 LABEL org.opencontainers.image.title="turnstone" \
       org.opencontainers.image.description="Multi-node AI orchestration platform"
 
-COPY --from=ghcr.io/astral-sh/uv:0.11.7 /uv /usr/local/bin/uv
+COPY --from=ghcr.io/astral-sh/uv:0.11.8 /uv /usr/local/bin/uv
 
 # Remove the slim image's man page exclusion so man-db has actual content
 RUN rm -f /etc/dpkg/dpkg.cfg.d/docker

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "turnstone"
-version = "1.5.1"
+version = "1.5.5"
 description = "Multi-node AI orchestration platform with tool use, agent routing, and cluster simulation."
 readme = "README.md"
 license = "BUSL-1.1"

tests/_coord_test_helpers.py

@@ -35,11 +35,10 @@ def _seed_children(
     The production path populates the registry via the cluster-event
     fan-out thread observing ``ws_created`` events. These tests just
     need a known-children set for the endpoint handlers to iterate —
-    inject directly under ``_children_lock`` rather than spinning up
-    the collector + fan-out plumbing.
+    inject directly via the registry's bulk-merge surface rather than
+    spinning up the collector + fan-out plumbing.
     """
-    with adapter._children_lock:
-        adapter._merge_child_ids_locked(coord_ws_id, child_ws_ids)
+    adapter._registry.merge_children(coord_ws_id, child_ws_ids)
 
 
 class _AuthMiddleware(BaseHTTPMiddleware):

tests/test_app_js.py

@@ -92,3 +92,71 @@ def test_tool_error_does_not_overwrite_approval_badge() -> None:
         "badge instead so the approval verdict stays visible alongside "
         "the error."
     )
+
+
+def test_replay_history_renders_content_before_tool_block() -> None:
+    """In ``replayHistory``'s ``role === "assistant"`` branch, the
+    ``msg.content`` render must precede the ``msg.tool_calls`` render.
+
+    Two reasons, both load-bearing:
+
+    1. **Structural** — the next loop iteration's ``role === "tool"``
+       message anchors to ``lastToolBlock``. The tool-block branch sets
+       that anchor; the content branch clears it. If content runs after
+       the tool block, the clear silently drops the upcoming tool
+       result. Pre-fix, every interactive tool result was missing from
+       saved-workstream replays whenever the assistant turn carried
+       both narration and tool calls (very common output shape).
+
+    2. **Visual** — the live SSE path renders content first
+       (``stream_text`` streams before ``tool_info`` /
+       ``approve_request``), so replay should match.
+
+    The test pins the order via the offsets of the ``msg.content`` and
+    ``msg.tool_calls`` branch headers inside the function body."""
+    body = _APP_JS.read_text(encoding="utf-8")
+    start = body.index("Pane.prototype.replayHistory = function")
+    end = body.index("Pane.prototype._attachRetryToLastAssistant", start)
+    fn = body[start:end]
+    # Locate the assistant branch and bound the search to its body —
+    # the function also handles user / tool roles which would otherwise
+    # confuse the offset comparison.
+    asst_start = fn.index('msg.role === "assistant"')
+    asst_end = fn.index('msg.role === "tool"', asst_start)
+    asst = fn[asst_start:asst_end]
+    content_idx = asst.index("if (msg.content)")
+    tool_calls_idx = asst.index("if (msg.tool_calls && msg.tool_calls.length)")
+    assert content_idx < tool_calls_idx, (
+        "replayHistory must render msg.content BEFORE msg.tool_calls "
+        "inside the assistant branch — otherwise the lastToolBlock "
+        "anchor is clobbered before the next iteration's tool result "
+        "can attach to it (and the visual order also drifts from the "
+        "live SSE flow)."
+    )
+
+
+def test_replay_history_renders_persisted_verdict_badge() -> None:
+    """Saved-workstream replays must paint the persisted intent verdict
+    next to each tool div, using the same ``renderVerdictBadge`` helper
+    the live ``showInlineToolBlock`` path uses. Pre-fix the audit trail
+    was complete in storage (``intent_verdicts`` table) but never
+    surfaced on replay — operators reviewing a saved workstream
+    couldn't see what the heuristic / LLM judge thought of any tool
+    call. This test pins the call site so a refactor that drops the
+    decoration regresses the audit surface."""
+    body = _APP_JS.read_text(encoding="utf-8")
+    start = body.index("Pane.prototype.replayHistory = function")
+    end = body.index("Pane.prototype._attachRetryToLastAssistant", start)
+    fn = body[start:end]
+    # Match a `renderVerdictBadge(<something>.verdict, ...)` call inside
+    # the replay loop.  Loose on whitespace + identifier so a future
+    # rename of the iteration variable doesn't trip CI.
+    badge_call_re = re.compile(
+        r"renderVerdictBadge\(\s*\w+\.verdict\b",
+    )
+    assert badge_call_re.search(fn), (
+        "replayHistory must call renderVerdictBadge(tc.verdict, ...) "
+        "when a persisted verdict is attached to a tool_call entry — "
+        "otherwise the audit-trail data persisted to intent_verdicts "
+        "doesn't surface on saved-workstream replays."
+    )

tests/test_child_source.py

@@ -0,0 +1,270 @@
+"""Unit tests for :mod:`turnstone.core.child_source`.
+
+Covers both strategies in isolation against fakes — no live collector,
+no live SessionManager. Adapter-level integration coverage continues to
+live in ``test_coordinator_adapter.py``.
+"""
+
+from __future__ import annotations
+
+import contextlib
+import time
+from typing import TYPE_CHECKING, Any
+
+from turnstone.core.child_source import ClusterChildSource, SameNodeChildSource
+from turnstone.core.children_registry import ChildrenRegistry
+from turnstone.core.workstream import WorkstreamState
+
+if TYPE_CHECKING:
+    import queue
+
+
+# ---------------------------------------------------------------------------
+# SameNodeChildSource
+# ---------------------------------------------------------------------------
+
+
+class _FakeManager:
+    """Minimal SessionManager stand-in implementing the subscribe API."""
+
+    def __init__(self) -> None:
+        self.subscribers: list[Any] = []
+
+    def subscribe_to_state(self, callback: Any) -> None:
+        self.subscribers.append(callback)
+
+    def unsubscribe_from_state(self, callback: Any) -> None:
+        with contextlib.suppress(ValueError):
+            self.subscribers.remove(callback)
+
+    def fire(self, ws_id: str, state: WorkstreamState) -> None:
+        for cb in self.subscribers:
+            cb(ws_id, state)
+
+
+class TestSameNodeChildSource:
+    def test_start_subscribes_to_manager(self) -> None:
+        mgr = _FakeManager()
+        registry = ChildrenRegistry()
+        src = SameNodeChildSource(mgr, registry)
+        sink_calls: list[dict[str, Any]] = []
+        src.start(sink=sink_calls.append)
+        assert len(mgr.subscribers) == 1
+
+    def test_state_change_for_known_child_pushes_to_sink(self) -> None:
+        mgr = _FakeManager()
+        registry = ChildrenRegistry()
+        registry.install("p1", object())
+        registry.add_child("p1", "c1")
+        src = SameNodeChildSource(mgr, registry)
+        sink_calls: list[dict[str, Any]] = []
+        src.start(sink=sink_calls.append)
+
+        mgr.fire("c1", WorkstreamState.RUNNING)
+
+        assert len(sink_calls) == 1
+        ev = sink_calls[0]
+        assert ev["type"] == "cluster_state"
+        assert ev["ws_id"] == "c1"
+        assert ev["state"] == "running"
+
+    def test_state_change_for_unknown_workstream_is_dropped(self) -> None:
+        mgr = _FakeManager()
+        registry = ChildrenRegistry()
+        src = SameNodeChildSource(mgr, registry)
+        sink_calls: list[dict[str, Any]] = []
+        src.start(sink=sink_calls.append)
+
+        # No registry entry — pre-filter drops the event without
+        # invoking the sink.
+        mgr.fire("ws-unknown", WorkstreamState.IDLE)
+        assert sink_calls == []
+
+    def test_shutdown_unsubscribes(self) -> None:
+        mgr = _FakeManager()
+        registry = ChildrenRegistry()
+        src = SameNodeChildSource(mgr, registry)
+        src.start(sink=lambda ev: None)
+        assert len(mgr.subscribers) == 1
+        src.shutdown()
+        assert mgr.subscribers == []
+
+    def test_start_is_idempotent(self) -> None:
+        mgr = _FakeManager()
+        registry = ChildrenRegistry()
+        src = SameNodeChildSource(mgr, registry)
+        src.start(sink=lambda ev: None)
+        src.start(sink=lambda ev: None)
+        # Second start is a no-op; only one subscription.
+        assert len(mgr.subscribers) == 1
+
+    def test_sink_exception_does_not_propagate(self) -> None:
+        mgr = _FakeManager()
+        registry = ChildrenRegistry()
+        registry.install("p1", object())
+        registry.add_child("p1", "c1")
+        src = SameNodeChildSource(mgr, registry)
+
+        def bad_sink(ev: dict[str, Any]) -> None:
+            raise RuntimeError("sink boom")
+
+        src.start(sink=bad_sink)
+        # Should not raise — the strategy catches sink failures and logs.
+        mgr.fire("c1", WorkstreamState.RUNNING)
+
+
+# ---------------------------------------------------------------------------
+# ClusterChildSource
+# ---------------------------------------------------------------------------
+
+
+class _FakeCollector:
+    """Minimal ClusterCollector stand-in providing the listener API."""
+
+    def __init__(self, snapshot: dict[str, Any] | None = None) -> None:
+        self._snapshot = snapshot or {"nodes": []}
+        self.queues: list[queue.Queue[dict[str, Any]]] = []
+        self.unregistered: list[queue.Queue[dict[str, Any]]] = []
+
+    def get_snapshot_and_register(self, q: queue.Queue[dict[str, Any]]) -> dict[str, Any]:
+        self.queues.append(q)
+        return self._snapshot
+
+    def unregister_listener(self, q: queue.Queue[dict[str, Any]]) -> None:
+        self.unregistered.append(q)
+
+    def emit(self, event: dict[str, Any]) -> None:
+        """Push an event to all registered listener queues."""
+        for q in self.queues:
+            q.put(event)
+
+
+class TestClusterChildSource:
+    def test_start_subscribes_to_collector(self) -> None:
+        coll = _FakeCollector()
+        registry = ChildrenRegistry()
+        src = ClusterChildSource(
+            collector=coll,
+            registry=registry,
+            parents_provider=list,
+        )
+        try:
+            src.start(sink=lambda ev: None)
+            assert len(coll.queues) == 1
+        finally:
+            src.shutdown()
+
+    def test_start_primes_registry_from_snapshot(self) -> None:
+        snapshot = {
+            "nodes": [
+                {
+                    "workstreams": [
+                        {"id": "c1", "parent_ws_id": "p1"},
+                        {"id": "c2", "parent_ws_id": "p1"},
+                        # Unknown parent — dropped
+                        {"id": "x", "parent_ws_id": "p-unknown"},
+                    ],
+                },
+            ],
+        }
+        coll = _FakeCollector(snapshot)
+        registry = ChildrenRegistry()
+        registry.install("p1", object())
+        src = ClusterChildSource(
+            collector=coll,
+            registry=registry,
+            parents_provider=lambda: ["p1"],
+        )
+        try:
+            src.start(sink=lambda ev: None)
+            assert set(registry.children_of("p1")) == {"c1", "c2"}
+            assert registry.parent_for("x") is None
+        finally:
+            src.shutdown()
+
+    def test_event_dispatched_to_sink(self) -> None:
+        coll = _FakeCollector()
+        registry = ChildrenRegistry()
+        src = ClusterChildSource(
+            collector=coll,
+            registry=registry,
+            parents_provider=list,
+        )
+        sink_calls: list[dict[str, Any]] = []
+
+        try:
+            src.start(sink=sink_calls.append)
+            coll.emit({"type": "cluster_state", "ws_id": "c1", "state": "running"})
+            # Daemon thread loop has 1.0s queue timeout; poll briefly.
+            for _ in range(20):
+                if sink_calls:
+                    break
+                time.sleep(0.05)
+            assert len(sink_calls) == 1
+            assert sink_calls[0]["ws_id"] == "c1"
+        finally:
+            src.shutdown()
+
+    def test_shutdown_unregisters_and_joins_thread(self) -> None:
+        coll = _FakeCollector()
+        registry = ChildrenRegistry()
+        src = ClusterChildSource(
+            collector=coll,
+            registry=registry,
+            parents_provider=list,
+        )
+        src.start(sink=lambda ev: None)
+        src.shutdown()
+        assert coll.unregistered == coll.queues
+        # Second shutdown is a no-op (idempotent).
+        src.shutdown()
+
+    def test_start_is_idempotent(self) -> None:
+        coll = _FakeCollector()
+        registry = ChildrenRegistry()
+        src = ClusterChildSource(
+            collector=coll,
+            registry=registry,
+            parents_provider=list,
+        )
+        try:
+            src.start(sink=lambda ev: None)
+            src.start(sink=lambda ev: None)
+            assert len(coll.queues) == 1
+        finally:
+            src.shutdown()
+
+    def test_sink_exception_does_not_kill_thread(self) -> None:
+        coll = _FakeCollector()
+        registry = ChildrenRegistry()
+        src = ClusterChildSource(
+            collector=coll,
+            registry=registry,
+            parents_provider=list,
+        )
+        survived_calls: list[dict[str, Any]] = []
+        call_count = [0]
+
+        def flaky_sink(ev: dict[str, Any]) -> None:
+            call_count[0] += 1
+            if call_count[0] == 1:
+                raise RuntimeError("first one boom")
+            survived_calls.append(ev)
+
+        try:
+            src.start(sink=flaky_sink)
+            coll.emit({"type": "cluster_state", "ws_id": "c1", "state": "x"})
+            coll.emit({"type": "cluster_state", "ws_id": "c2", "state": "y"})
+            for _ in range(40):
+                if survived_calls:
+                    break
+                time.sleep(0.05)
+            assert len(survived_calls) == 1
+            assert survived_calls[0]["ws_id"] == "c2"
+        finally:
+            src.shutdown()
+
+
+# Multi-subscriber observer tests for ``SessionManager.subscribe_to_state``
+# / ``unsubscribe_from_state`` live in ``test_session_manager.py`` where
+# the proper FakeAdapter / FakeStorage construction helpers already exist.

tests/test_children_registry.py

@@ -0,0 +1,239 @@
+"""Unit tests for :class:`turnstone.core.children_registry.ChildrenRegistry`.
+
+The registry was lifted from ``CoordinatorAdapter`` in Stage 3 Step 1.
+Adapter-level coverage for the integrated behavior already lives in
+``test_coordinator_adapter.py``; this file pins the data structure
+invariants in isolation so the registry can be reused by future
+``ChildSource`` strategies (Step 2) without re-deriving the behavior
+from the adapter test surface.
+"""
+
+from __future__ import annotations
+
+import threading
+
+import pytest
+
+from turnstone.core.children_registry import ChildrenRegistry
+
+
+class _Sentinel:
+    """Lightweight UI stand-in; identity-comparable, no behavior."""
+
+
+@pytest.fixture
+def registry() -> ChildrenRegistry:
+    return ChildrenRegistry()
+
+
+# ---------------------------------------------------------------------------
+# install / uninstall
+# ---------------------------------------------------------------------------
+
+
+class TestInstallUninstall:
+    def test_install_seeds_empty_child_set_and_presence(self, registry: ChildrenRegistry) -> None:
+        ui = _Sentinel()
+        registry.install("p1", ui)
+        assert registry.children_of("p1") == []
+        assert registry.ui_for("p1") is ui
+        assert registry.parents() == ["p1"]
+
+    def test_install_is_idempotent_repoints_ui_keeps_children(
+        self, registry: ChildrenRegistry
+    ) -> None:
+        ui_a = _Sentinel()
+        ui_b = _Sentinel()
+        registry.install("p1", ui_a)
+        registry.merge_children("p1", ["c1", "c2"])
+        registry.install("p1", ui_b)
+        assert registry.ui_for("p1") is ui_b
+        assert set(registry.children_of("p1")) == {"c1", "c2"}
+
+    def test_uninstall_clears_forward_reverse_and_presence(
+        self, registry: ChildrenRegistry
+    ) -> None:
+        ui = _Sentinel()
+        registry.install("p1", ui)
+        registry.merge_children("p1", ["c1", "c2"])
+        registry.uninstall("p1")
+        assert registry.children_of("p1") == []
+        assert registry.ui_for("p1") is None
+        assert registry.parents() == []
+        assert registry.parent_for("c1") is None
+        assert registry.parent_for("c2") is None
+
+    def test_uninstall_unknown_parent_is_noop(self, registry: ChildrenRegistry) -> None:
+        registry.uninstall("never-installed")  # must not raise
+
+    def test_uninstall_does_not_clobber_other_parents(self, registry: ChildrenRegistry) -> None:
+        registry.install("p1", _Sentinel())
+        registry.install("p2", _Sentinel())
+        registry.merge_children("p1", ["c1"])
+        registry.merge_children("p2", ["c2"])
+        registry.uninstall("p1")
+        assert registry.parent_for("c1") is None
+        assert registry.parent_for("c2") == "p2"
+        assert registry.parents() == ["p2"]
+
+
+# ---------------------------------------------------------------------------
+# add_child — atomic check-and-route
+# ---------------------------------------------------------------------------
+
+
+class TestAddChild:
+    def test_add_child_returns_ui_on_success(self, registry: ChildrenRegistry) -> None:
+        ui = _Sentinel()
+        registry.install("p1", ui)
+        assert registry.add_child("p1", "c1") is ui
+        assert registry.parent_for("c1") == "p1"
+        assert registry.children_of("p1") == ["c1"]
+
+    def test_add_child_returns_none_when_parent_not_installed(
+        self, registry: ChildrenRegistry
+    ) -> None:
+        assert registry.add_child("absent", "c1") is None
+        assert registry.parent_for("c1") is None
+
+    def test_add_child_returns_none_on_duplicate(self, registry: ChildrenRegistry) -> None:
+        ui = _Sentinel()
+        registry.install("p1", ui)
+        assert registry.add_child("p1", "c1") is ui
+        # second add for same child returns None — caller must not
+        # double-dispatch.
+        assert registry.add_child("p1", "c1") is None
+        assert registry.children_of("p1") == ["c1"]
+
+
+# ---------------------------------------------------------------------------
+# merge_children — bulk seeding
+# ---------------------------------------------------------------------------
+
+
+class TestMergeChildren:
+    def test_merge_seeds_forward_and_reverse(self, registry: ChildrenRegistry) -> None:
+        registry.merge_children("p1", ["c1", "c2", "c3"])
+        assert set(registry.children_of("p1")) == {"c1", "c2", "c3"}
+        for cid in ("c1", "c2", "c3"):
+            assert registry.parent_for(cid) == "p1"
+
+    def test_merge_is_idempotent(self, registry: ChildrenRegistry) -> None:
+        registry.merge_children("p1", ["c1"])
+        registry.merge_children("p1", ["c1"])
+        assert registry.children_of("p1") == ["c1"]
+
+    def test_merge_skips_empty_or_falsy_ids(self, registry: ChildrenRegistry) -> None:
+        registry.merge_children("p1", ["", "c1", "", "c2"])
+        assert set(registry.children_of("p1")) == {"c1", "c2"}
+
+    def test_merge_does_not_require_install(self, registry: ChildrenRegistry) -> None:
+        # Snapshot-priming may run before the parent's install fires —
+        # the merge still seeds the forward set so the install picks
+        # the children up. (Storage-seeded rebuild relies on this.)
+        registry.merge_children("p1", ["c1"])
+        assert registry.children_of("p1") == ["c1"]
+        # ui_for is still None because install hasn't run
+        assert registry.ui_for("p1") is None
+
+
+# ---------------------------------------------------------------------------
+# Lookups — return copies, not live refs
+# ---------------------------------------------------------------------------
+
+
+class TestLookups:
+    def test_children_of_returns_copy(self, registry: ChildrenRegistry) -> None:
+        registry.install("p1", _Sentinel())
+        registry.merge_children("p1", ["c1", "c2"])
+        snap = registry.children_of("p1")
+        snap.append("c3-injected")
+        assert "c3-injected" not in registry.children_of("p1")
+
+    def test_children_of_unknown_parent_returns_empty(self, registry: ChildrenRegistry) -> None:
+        assert registry.children_of("absent") == []
+
+    def test_parent_for_unknown_child_returns_none(self, registry: ChildrenRegistry) -> None:
+        assert registry.parent_for("absent") is None
+
+    def test_parents_returns_copy(self, registry: ChildrenRegistry) -> None:
+        registry.install("p1", _Sentinel())
+        snap = registry.parents()
+        snap.append("p2-injected")
+        assert "p2-injected" not in registry.parents()
+
+
+# ---------------------------------------------------------------------------
+# Concurrency — concurrent add_child must not exceed the unique-set
+# invariant or leave a half-installed reverse-index entry.
+# ---------------------------------------------------------------------------
+
+
+class TestConcurrency:
+    def test_concurrent_add_child_returns_ui_exactly_once_per_unique(
+        self, registry: ChildrenRegistry
+    ) -> None:
+        ui = _Sentinel()
+        registry.install("p1", ui)
+        results: list[object] = []
+        results_lock = threading.Lock()
+
+        def attempt_add(child_id: str) -> None:
+            r = registry.add_child("p1", child_id)
+            with results_lock:
+                results.append(r)
+
+        threads = [threading.Thread(target=attempt_add, args=("c1",)) for _ in range(20)]
+        for t in threads:
+            t.start()
+        for t in threads:
+            t.join()
+
+        # Exactly one thread sees the UI; the remaining 19 see None
+        # (duplicate). The forward + reverse indexes carry exactly one
+        # entry for c1.
+        successes = [r for r in results if r is ui]
+        nones = [r for r in results if r is None]
+        assert len(successes) == 1
+        assert len(nones) == 19
+        assert registry.children_of("p1") == ["c1"]
+        assert registry.parent_for("c1") == "p1"
+
+    def test_concurrent_install_and_add_child_no_resurrect(
+        self, registry: ChildrenRegistry
+    ) -> None:
+        # add_child racing with uninstall: either lands first (registry
+        # populated) or the parent is gone (returns None). Must NOT
+        # leave a forward-set entry without presence — that would be
+        # the "resurrected after close" leak the locked dispatch path
+        # was guarding against.
+        ui = _Sentinel()
+        registry.install("p1", ui)
+
+        outcomes: list[object] = []
+
+        def adder() -> None:
+            outcomes.append(registry.add_child("p1", "c1"))
+
+        def uninstaller() -> None:
+            registry.uninstall("p1")
+
+        threads = [
+            threading.Thread(target=adder),
+            threading.Thread(target=uninstaller),
+        ]
+        for t in threads:
+            t.start()
+        for t in threads:
+            t.join()
+
+        # If add_child landed first: c1 is in the forward set, then
+        # uninstall clears everything. End state: nothing.
+        # If uninstall landed first: add_child sees no presence,
+        # returns None, no entry added. End state: nothing.
+        # Either way, the leak invariant holds: child set is empty or
+        # parent is gone, never "child set populated but no presence".
+        children = registry.children_of("p1")
+        ui_present = registry.ui_for("p1") is not None
+        if children:
+            assert ui_present, "registry leaked: children set without presence"

tests/test_console.py

@@ -314,12 +314,14 @@ class TestCollectorSnapshot:
         assert event["ws_id"] == "ws1"
         assert event["state"] == "running"
 
-    def test_apply_snapshot_state_change_forwards_pending_approval_detail(self):
-        """Reconnect-via-snapshot is the resync path after every console
-        restart or network blip.  Without forwarding the field here,
-        a child sitting in approval-pending across the gap renders as
-        ``activity_state=approval`` with no buttons until the next
-        state change — broken UX during the most common re-sync event."""
+    def test_apply_snapshot_state_change_does_not_carry_pending_approval_detail(self):
+        """Stage 3 cleanup — the snapshot-resync cluster_state event no
+        longer piggybacks ``pending_approval_detail`` (the field is
+        gone from cluster_state entirely). On reconnect the browser's
+        bulk fetch — triggered by the ``activity_state="approval"``
+        transition in the reducer — pulls the items directly from
+        ``ui.serialize_pending_approval_detail()`` via the dashboard
+        endpoint."""
         c = _make_collector()
         c._nodes["node-a"] = NodeSnapshot(
             node_id="node-a",
@@ -329,10 +331,6 @@ class TestCollectorSnapshot:
         q: queue.Queue[dict] = queue.Queue()
         c.register_listener(q)
 
-        detail = {
-            "items": [{"call_id": "c1", "header": "tool x"}],
-            "judge_pending": False,
-        }
         c._apply_snapshot(
             "node-a",
             {
@@ -344,7 +342,6 @@ class TestCollectorSnapshot:
                         "name": "same",
                         "state": "running",
                         "activity_state": "approval",
-                        "pending_approval_detail": detail,
                     }
                 ],
                 "health": {},
@@ -354,7 +351,8 @@ class TestCollectorSnapshot:
 
         event = q.get_nowait()
         assert event["type"] == "cluster_state"
-        assert event["pending_approval_detail"] == detail
+        assert event["activity_state"] == "approval"
+        assert "pending_approval_detail" not in event
 
     def test_apply_snapshot_skips_empty_id_workstream(self):
         c = _make_collector()
@@ -401,12 +399,12 @@ class TestCollectorDelta:
         # Verify in-memory state was updated
         assert c._nodes["node-a"].workstreams["ws1"]["state"] == "running"
 
-    def test_apply_delta_ws_state_forwards_pending_approval_detail(self):
-        """The rich approval payload now travels on the cluster bus so
-        coord tabs can render inline approve/deny buttons in lockstep
-        with the activity_state transition.  Collector must forward
-        the field verbatim — the adapter does the child-routing on
-        top, but the bus carries the data."""
+    def test_apply_delta_ws_state_does_not_carry_pending_approval_detail(self):
+        """Stage 3 cleanup — ``cluster_state`` no longer carries the
+        ``pending_approval_detail`` piggyback. Approval items now arrive
+        via bulk fetch on activity_state transition; verdicts via the
+        explicit ``intent_verdict`` event class. Symmetric event flow,
+        no piggyback to dedupe against."""
         c = _make_collector()
         c._nodes["node-a"] = NodeSnapshot(
             node_id="node-a",
@@ -416,10 +414,6 @@ class TestCollectorDelta:
         q: queue.Queue[dict] = queue.Queue()
         c.register_listener(q)
 
-        detail = {
-            "items": [{"call_id": "c1", "header": "tool x"}],
-            "judge_pending": False,
-        }
         c._apply_delta(
             "node-a",
             {
@@ -427,13 +421,13 @@ class TestCollectorDelta:
                 "ws_id": "ws1",
                 "state": "running",
                 "activity_state": "approval",
-                "pending_approval_detail": detail,
             },
         )
 
         event = q.get_nowait()
         assert event["type"] == "cluster_state"
-        assert event["pending_approval_detail"] == detail
+        assert event["activity_state"] == "approval"
+        assert "pending_approval_detail" not in event
 
     def test_apply_delta_ws_created(self):
         c = _make_collector()
@@ -480,6 +474,139 @@ class TestCollectorDelta:
         assert event["name"] == "new-name"
         assert c._nodes["node-a"].workstreams["ws1"]["name"] == "new-name"
 
+    def test_apply_delta_intent_verdict_forwards_verbatim(self):
+        """Stage 3 Step 5 — node-emitted intent_verdict events flow
+        through _apply_delta to cluster fan-out so coord adapters can
+        re-emit as child_ws_intent_verdict on the parent's SSE."""
+        c = _make_collector()
+        c._nodes["node-a"] = NodeSnapshot(
+            node_id="node-a",
+            server_url="http://a:8080",
+            workstreams={"ws1": {"id": "ws1", "name": "test", "state": "idle"}},
+        )
+        q: queue.Queue[dict] = queue.Queue()
+        c.register_listener(q)
+
+        verdict = {
+            "call_id": "c1",
+            "risk_level": "low",
+            "confidence": 0.9,
+            "recommendation": "approve",
+        }
+        c._apply_delta(
+            "node-a",
+            {"type": "intent_verdict", "ws_id": "ws1", "verdict": verdict},
+        )
+
+        event = q.get_nowait()
+        assert event["type"] == "intent_verdict"
+        assert event["ws_id"] == "ws1"
+        assert event["node_id"] == "node-a"
+        assert event["verdict"] == verdict
+
+    def test_apply_delta_intent_verdict_drops_when_ws_id_missing(self):
+        c = _make_collector()
+        c._nodes["node-a"] = NodeSnapshot(node_id="node-a", server_url="http://a:8080")
+        q: queue.Queue[dict] = queue.Queue()
+        c.register_listener(q)
+
+        c._apply_delta("node-a", {"type": "intent_verdict", "verdict": {}})
+
+        assert q.empty()
+
+    def test_apply_delta_approval_resolved_forwards_verbatim(self):
+        """Stage 3 Step 5 — paired with intent_verdict; clears the
+        coord tree's pending-approval pill in lockstep with the
+        actual decision rather than waiting for the state-change
+        piggyback."""
+        c = _make_collector()
+        c._nodes["node-a"] = NodeSnapshot(
+            node_id="node-a",
+            server_url="http://a:8080",
+            workstreams={"ws1": {"id": "ws1", "name": "test", "state": "idle"}},
+        )
+        q: queue.Queue[dict] = queue.Queue()
+        c.register_listener(q)
+
+        c._apply_delta(
+            "node-a",
+            {
+                "type": "approval_resolved",
+                "ws_id": "ws1",
+                "approved": True,
+                "feedback": "lgtm",
+                "always": False,
+            },
+        )
+
+        event = q.get_nowait()
+        assert event["type"] == "approval_resolved"
+        assert event["ws_id"] == "ws1"
+        assert event["node_id"] == "node-a"
+        assert event["approved"] is True
+        assert event["feedback"] == "lgtm"
+        assert event["always"] is False
+
+    def test_apply_delta_approve_request_forwards_detail(self):
+        """Push path for the initial approval items — eliminates the
+        bulk-fetch race that left the coord row stuck on a loading
+        placeholder when the bulk fetch landed in the gap between
+        _emit_state(ATTENTION) and approve_tools setting _pending_approval."""
+        c = _make_collector()
+        c._nodes["node-a"] = NodeSnapshot(
+            node_id="node-a",
+            server_url="http://a:8080",
+            workstreams={"ws1": {"id": "ws1", "name": "test", "state": "idle"}},
+        )
+        q: queue.Queue[dict] = queue.Queue()
+        c.register_listener(q)
+
+        detail = {
+            "type": "approve_request",
+            "items": [{"call_id": "c1", "header": "tool x"}],
+            "judge_pending": True,
+        }
+        c._apply_delta(
+            "node-a",
+            {"type": "approve_request", "ws_id": "ws1", "detail": detail},
+        )
+
+        event = q.get_nowait()
+        assert event["type"] == "approve_request"
+        assert event["ws_id"] == "ws1"
+        assert event["node_id"] == "node-a"
+        assert event["detail"] == detail
+
+    def test_apply_delta_approve_request_drops_when_ws_id_missing(self):
+        c = _make_collector()
+        c._nodes["node-a"] = NodeSnapshot(node_id="node-a", server_url="http://a:8080")
+        q: queue.Queue[dict] = queue.Queue()
+        c.register_listener(q)
+
+        c._apply_delta("node-a", {"type": "approve_request", "detail": {}})
+
+        assert q.empty()
+
+    def test_apply_delta_approval_resolved_coerces_missing_fields(self):
+        """Defensive: ``approved`` / ``always`` / ``feedback`` may be
+        omitted by older nodes mid-rolling-upgrade; collector coerces
+        to safe defaults."""
+        c = _make_collector()
+        c._nodes["node-a"] = NodeSnapshot(
+            node_id="node-a",
+            server_url="http://a:8080",
+            workstreams={"ws1": {"id": "ws1", "name": "test", "state": "idle"}},
+        )
+        q: queue.Queue[dict] = queue.Queue()
+        c.register_listener(q)
+
+        c._apply_delta("node-a", {"type": "approval_resolved", "ws_id": "ws1"})
+
+        event = q.get_nowait()
+        assert event["approved"] is False
+        assert event["feedback"] == ""
+        assert event["always"] is False
+
     def test_apply_delta_health_changed(self):
         c = _make_collector()
         c._nodes["node-a"] = NodeSnapshot(

tests/test_console_idle_cleanup.py

@@ -0,0 +1,106 @@
+"""Tests for the console's coordinator idle-cleanup thread helper.
+
+The helper itself is a tiny loop wrapping ``mgr.close_idle``; the heavy
+lifting is in ``SessionManager.close_idle`` (covered in
+``test_session_manager.py``) and ``bulk_close_stale_orphans`` (covered
+in ``test_storage_sqlite.py``).  These tests verify the glue:
+
+- the helper runs an initial sweep BEFORE its first sleep (cold-start
+  cleanup without blocking the lifespan),
+- the helper swallows exceptions so a transient DB blip can't kill the
+  daemon thread,
+- the helper exits cleanly when ``stop_event`` is set.
+
+The ``stop_event`` parameter is exclusively for tests — production
+callers pass ``None`` and the daemon runs for process lifetime.
+"""
+
+from __future__ import annotations
+
+import threading
+from unittest.mock import patch
+
+from turnstone.console.server import _coord_idle_cleanup_thread
+
+
+class _StubMgr:
+    def __init__(
+        self, *, stop_event: threading.Event, expected_calls: int, raise_after: int = -1
+    ) -> None:
+        self.calls: list[float] = []
+        self.sleep_calls_at_each_close: list[int] = []
+        self._stop_event = stop_event
+        self._expected = expected_calls
+        self._raise_after = raise_after
+        self._sleep_count = 0
+
+    def close_idle(self, timeout_sec: float) -> list[str]:
+        # Snapshot how many sleeps preceded this close — lets the
+        # "initial sweep" test verify the first close_idle ran with
+        # zero preceding sleeps.
+        self.sleep_calls_at_each_close.append(self._sleep_count)
+        self.calls.append(timeout_sec)
+        try:
+            if 0 <= self._raise_after < len(self.calls):
+                raise RuntimeError("simulated DB blip")
+        finally:
+            # Set stop after the helper has been exercised enough,
+            # regardless of whether this call raised.
+            if len(self.calls) >= self._expected:
+                self._stop_event.set()
+        return []
+
+    def record_sleep(self, _seconds: float) -> None:
+        self._sleep_count += 1
+
+
+def _run_until_done(mgr: _StubMgr, stop_event: threading.Event, timeout_sec: float) -> None:
+    with patch("turnstone.console.server.time.sleep", mgr.record_sleep):
+        thread = threading.Thread(
+            target=_coord_idle_cleanup_thread,
+            args=(mgr, timeout_sec, stop_event),
+            daemon=True,
+        )
+        thread.start()
+        thread.join(timeout=2.0)
+        assert not thread.is_alive(), "helper failed to exit on stop_event"
+
+
+def test_coord_idle_cleanup_runs_initial_sweep_before_sleep() -> None:
+    """The first close_idle call must happen BEFORE the first time.sleep —
+    otherwise cold-start orphans wait one ``check_every`` interval (~30 min
+    on default 2h timeout) for the first reap.  Crucial because the
+    lifespan no longer does a synchronous initial sweep."""
+    stop_event = threading.Event()
+    mgr = _StubMgr(stop_event=stop_event, expected_calls=1)
+    _run_until_done(mgr, stop_event, timeout_sec=120.0)
+    assert mgr.sleep_calls_at_each_close == [0], "first close_idle should run before any sleep"
+
+
+def test_coord_idle_cleanup_calls_close_idle_each_tick() -> None:
+    stop_event = threading.Event()
+    mgr = _StubMgr(stop_event=stop_event, expected_calls=3)
+    _run_until_done(mgr, stop_event, timeout_sec=120.0)
+    assert len(mgr.calls) == 3
+    assert all(t == 120.0 for t in mgr.calls)
+
+
+def test_coord_idle_cleanup_survives_close_idle_exceptions() -> None:
+    """A transient DB error must not kill the daemon thread — the next
+    tick should still fire close_idle.  Without the try/except, a single
+    blip would silently leak orphans forever."""
+    stop_event = threading.Event()
+    mgr = _StubMgr(stop_event=stop_event, expected_calls=4, raise_after=1)
+    _run_until_done(mgr, stop_event, timeout_sec=120.0)
+    # All four calls must have fired despite calls 2-4 raising.
+    assert len(mgr.calls) == 4
+
+
+def test_coord_idle_cleanup_exits_cleanly_on_stop_event() -> None:
+    """The stop_event mechanism is the test contract; verify the thread
+    actually exits when the event is set, without needing exceptions or
+    daemon-process termination."""
+    stop_event = threading.Event()
+    mgr = _StubMgr(stop_event=stop_event, expected_calls=2)
+    _run_until_done(mgr, stop_event, timeout_sec=120.0)
+    assert stop_event.is_set()

tests/test_coord_ui_approve_tools.py

@@ -464,3 +464,148 @@ def test_coord_budget_override_survives_wildcard_allow_policy() -> None:
     assert approved is True
     types = [e.get("type") for e in captured_events]
     assert "approve_request" in types, "Wildcard allow must not strip the budget-override prompt"
+
+
+# ---------------------------------------------------------------------------
+# Cluster-bus broadcast hooks — _broadcast_intent_verdict / _approval_resolved
+# ---------------------------------------------------------------------------
+
+
+class TestBroadcastIntentVerdict:
+    """``ConsoleCoordinatorUI._broadcast_intent_verdict`` overrides the
+    no-op base hook to push the verdict onto the cluster bus via
+    ``ClusterCollector.emit_console_ws_intent_verdict``. The far more
+    common path is the per-node ``WebUI`` override (covered in
+    test_webui_content.py); this lights up the rare coord-self path
+    (a coord that runs its own LLM judge).
+    """
+
+    def test_calls_collector_emit_with_ws_id_and_verdict(self) -> None:
+        ui = ConsoleCoordinatorUI(ws_id="coord-a", user_id="u1")
+        collector = MagicMock()
+        ConsoleCoordinatorUI._collector = collector
+        try:
+            verdict = {
+                "call_id": "c1",
+                "risk_level": "high",
+                "confidence": 0.91,
+            }
+            ui._broadcast_intent_verdict(verdict)
+            collector.emit_console_ws_intent_verdict.assert_called_once_with(
+                "coord-a",
+                verdict,
+            )
+        finally:
+            ConsoleCoordinatorUI._collector = None
+
+    def test_no_op_when_collector_unset(self) -> None:
+        ui = ConsoleCoordinatorUI(ws_id="coord-a", user_id="u1")
+        ConsoleCoordinatorUI._collector = None
+        # Doesn't raise.
+        ui._broadcast_intent_verdict({"call_id": "c1"})
+
+    def test_collector_exception_swallowed(self) -> None:
+        ui = ConsoleCoordinatorUI(ws_id="coord-a", user_id="u1")
+        collector = MagicMock()
+        collector.emit_console_ws_intent_verdict.side_effect = RuntimeError("boom")
+        ConsoleCoordinatorUI._collector = collector
+        try:
+            # Doesn't raise — collector failures are observational only.
+            ui._broadcast_intent_verdict({"call_id": "c1"})
+        finally:
+            ConsoleCoordinatorUI._collector = None
+
+
+class TestBroadcastApprovalResolved:
+    """``ConsoleCoordinatorUI._broadcast_approval_resolved`` overrides
+    the base hook to push the resolution onto the cluster bus via
+    ``ClusterCollector.emit_console_ws_approval_resolved``."""
+
+    def test_calls_collector_with_decision_fields(self) -> None:
+        ui = ConsoleCoordinatorUI(ws_id="coord-a", user_id="u1")
+        collector = MagicMock()
+        ConsoleCoordinatorUI._collector = collector
+        try:
+            ui._broadcast_approval_resolved(True, "lgtm", always=True)
+            collector.emit_console_ws_approval_resolved.assert_called_once_with(
+                "coord-a",
+                approved=True,
+                feedback="lgtm",
+                always=True,
+            )
+        finally:
+            ConsoleCoordinatorUI._collector = None
+
+    def test_normalises_none_feedback_to_empty_string(self) -> None:
+        ui = ConsoleCoordinatorUI(ws_id="coord-a", user_id="u1")
+        collector = MagicMock()
+        ConsoleCoordinatorUI._collector = collector
+        try:
+            ui._broadcast_approval_resolved(False, None)
+            collector.emit_console_ws_approval_resolved.assert_called_once_with(
+                "coord-a",
+                approved=False,
+                feedback="",
+                always=False,
+            )
+        finally:
+            ConsoleCoordinatorUI._collector = None
+
+    def test_no_op_when_collector_unset(self) -> None:
+        ui = ConsoleCoordinatorUI(ws_id="coord-a", user_id="u1")
+        ConsoleCoordinatorUI._collector = None
+        # Doesn't raise.
+        ui._broadcast_approval_resolved(True, None)
+
+    def test_collector_exception_swallowed(self) -> None:
+        ui = ConsoleCoordinatorUI(ws_id="coord-a", user_id="u1")
+        collector = MagicMock()
+        collector.emit_console_ws_approval_resolved.side_effect = RuntimeError("boom")
+        ConsoleCoordinatorUI._collector = collector
+        try:
+            # Doesn't raise.
+            ui._broadcast_approval_resolved(True, "ok")
+        finally:
+            ConsoleCoordinatorUI._collector = None
+
+
+class TestBroadcastApproveRequest:
+    """Coord-side override for the approve_request push. Same rationale
+    as the WebUI override — the coord-self path is rare today, but
+    parity keeps the override symmetric with the rest of the broadcast
+    family."""
+
+    def test_calls_collector_emit_with_ws_id_and_detail(self) -> None:
+        ui = ConsoleCoordinatorUI(ws_id="coord-a", user_id="u1")
+        collector = MagicMock()
+        ConsoleCoordinatorUI._collector = collector
+        try:
+            detail = {
+                "type": "approve_request",
+                "items": [{"call_id": "c1", "header": "tool x"}],
+                "judge_pending": True,
+            }
+            ui._broadcast_approve_request(detail)
+            collector.emit_console_ws_approve_request.assert_called_once_with(
+                "coord-a",
+                detail,
+            )
+        finally:
+            ConsoleCoordinatorUI._collector = None
+
+    def test_no_op_when_collector_unset(self) -> None:
+        ui = ConsoleCoordinatorUI(ws_id="coord-a", user_id="u1")
+        ConsoleCoordinatorUI._collector = None
+        # Doesn't raise.
+        ui._broadcast_approve_request({"items": []})
+
+    def test_collector_exception_swallowed(self) -> None:
+        ui = ConsoleCoordinatorUI(ws_id="coord-a", user_id="u1")
+        collector = MagicMock()
+        collector.emit_console_ws_approve_request.side_effect = RuntimeError("boom")
+        ConsoleCoordinatorUI._collector = collector
+        try:
+            # Doesn't raise.
+            ui._broadcast_approve_request({"items": []})
+        finally:
+            ConsoleCoordinatorUI._collector = None

tests/test_coordinator_adapter.py

@@ -378,13 +378,21 @@ class TestCoordinatorAdapterWorkerDispatch:
 
 
 class TestCoordinatorAdapterChildrenRegistry:
-    def test_emit_created_seeds_empty_children_set(self) -> None:
+    """Adapter-level integration with :class:`ChildrenRegistry`.
+
+    Pure-registry invariants (forward/reverse consistency, idempotent
+    merge, locking) live in ``test_children_registry.py``. These
+    tests cover the adapter's wiring: that ``emit_*`` paths drive the
+    registry correctly and that the snapshot-priming bridge between
+    a collector snapshot and the registry preserves merge semantics.
+    """
+
+    def test_emit_created_installs_parent(self) -> None:
         adapter, _ = _make_adapter()
         ws = _make_ws()
         adapter.emit_created(ws)
-        assert ws.id in adapter._children
-        assert adapter._children[ws.id] == set()
-        assert adapter._active_coords[ws.id] is ws.ui
+        assert adapter._registry.children_of(ws.id) == []
+        assert adapter._registry.ui_for(ws.id) is ws.ui
 
     def test_emit_rehydrated_calls_rebuild(self) -> None:
         adapter, _ = _make_adapter()
@@ -398,42 +406,36 @@ class TestCoordinatorAdapterChildrenRegistry:
         adapter.emit_rehydrated(ws)
         assert calls == [ws.id]
 
-    def test_emit_closed_clears_forward_and_reverse_indexes(self) -> None:
+    def test_emit_closed_uninstalls_parent_and_clears_children(self) -> None:
         adapter, _ = _make_adapter()
-        with adapter._children_lock:
-            adapter._merge_child_ids_locked("coord-a", ["child-a1", "child-a2"])
-            adapter._merge_child_ids_locked("coord-b", ["child-b1"])
-            adapter._active_coords["coord-a"] = object()
-            adapter._active_coords["coord-b"] = object()
+        adapter._registry.install("coord-a", object())
+        adapter._registry.install("coord-b", object())
+        adapter._registry.merge_children("coord-a", ["child-a1", "child-a2"])
+        adapter._registry.merge_children("coord-b", ["child-b1"])
 
         adapter.emit_closed("coord-a")
 
-        assert "coord-a" not in adapter._children
-        assert "coord-a" not in adapter._active_coords
-        assert "child-a1" not in adapter._child_to_coord
-        assert "child-a2" not in adapter._child_to_coord
+        assert adapter._registry.ui_for("coord-a") is None
+        assert adapter._registry.children_of("coord-a") == []
+        assert adapter._registry.parent_for("child-a1") is None
+        assert adapter._registry.parent_for("child-a2") is None
         # coord-b untouched
-        assert adapter._child_to_coord["child-b1"] == "coord-b"
-        assert "coord-b" in adapter._children
-
-    def test_merge_child_ids_locked_is_idempotent(self) -> None:
-        adapter, _ = _make_adapter()
-        with adapter._children_lock:
-            adapter._merge_child_ids_locked("coord-a", ["child-1"])
-            adapter._merge_child_ids_locked("coord-a", ["child-1"])
-        assert adapter._children["coord-a"] == {"child-1"}
-        assert adapter._child_to_coord == {"child-1": "coord-a"}
+        assert adapter._registry.parent_for("child-b1") == "coord-b"
+        assert adapter._registry.ui_for("coord-b") is not None
 
     def test_prime_children_from_snapshot_merges_without_overwriting(self) -> None:
+        # Snapshot priming now lives on ClusterChildSource (production
+        # path). The adapter no longer carries its own duplicate copy.
+        from turnstone.core.child_source import ClusterChildSource
+
         adapter, _ = _make_adapter()
-        # Seed one in-memory coord + one existing child
-        coord_ws = _make_ws()
-        coord_ws.id = "coord-a"
-        mgr = MagicMock()
-        mgr.list_all.return_value = [coord_ws]
-        adapter.attach(mgr)
-        with adapter._children_lock:
-            adapter._merge_child_ids_locked("coord-a", ["child-a1"])
+        adapter._registry.merge_children("coord-a", ["child-a1"])
+
+        source = ClusterChildSource(
+            collector=MagicMock(),
+            registry=adapter._registry,
+            parents_provider=lambda: ["coord-a"],
+        )
 
         snapshot = {
             "nodes": [
@@ -448,10 +450,13 @@ class TestCoordinatorAdapterChildrenRegistry:
                 },
             ],
         }
-        adapter._prime_children_from_snapshot(snapshot)
-        assert adapter._children["coord-a"] == {"child-a1", "child-a2"}
-        assert adapter._child_to_coord["child-a2"] == "coord-a"
-        assert "child-x" not in adapter._child_to_coord
+        source._prime_from_snapshot(snapshot)
+        assert set(adapter._registry.children_of("coord-a")) == {
+            "child-a1",
+            "child-a2",
+        }
+        assert adapter._registry.parent_for("child-a2") == "coord-a"
+        assert adapter._registry.parent_for("child-x") is None
 
 
 # ---------------------------------------------------------------------------
@@ -478,9 +483,7 @@ class TestCoordinatorAdapterDispatchChildEvent:
         coord_ws.id = coord_id
         recorder = _UIRecorder()
         coord_ws.ui = recorder  # type: ignore[assignment]
-        with adapter._children_lock:
-            adapter._children.setdefault(coord_id, set())
-            adapter._active_coords[coord_id] = recorder
+        adapter._registry.install(coord_id, recorder)
         adapter.attach(_StubManager(coord_ws))  # type: ignore[arg-type]
         return adapter, recorder, coord_ws
 
@@ -510,12 +513,11 @@ class TestCoordinatorAdapterDispatchChildEvent:
         assert payload["child_ws_id"] == "child-a1"
         assert payload["parent_ws_id"] == "coord-a"
         # Reverse index updated for subsequent cluster_state events.
-        assert adapter._child_to_coord["child-a1"] == "coord-a"
+        assert adapter._registry.parent_for("child-a1") == "coord-a"
 
     def test_dispatch_cluster_state_routes_via_reverse_index(self) -> None:
         adapter, recorder, _ = self._setup()
-        with adapter._children_lock:
-            adapter._merge_child_ids_locked("coord-a", ["child-a1"])
+        adapter._registry.merge_children("coord-a", ["child-a1"])
         adapter._dispatch_child_event(
             {
                 "type": "cluster_state",
@@ -533,8 +535,7 @@ class TestCoordinatorAdapterDispatchChildEvent:
 
     def test_dispatch_ws_closed_routes_to_parent_coord(self) -> None:
         adapter, recorder, _ = self._setup()
-        with adapter._children_lock:
-            adapter._merge_child_ids_locked("coord-a", ["child-a1"])
+        adapter._registry.merge_children("coord-a", ["child-a1"])
         adapter._dispatch_child_event(
             {"type": "ws_closed", "ws_id": "child-a1", "reason": "evicted"}
         )
@@ -548,8 +549,7 @@ class TestCoordinatorAdapterDispatchChildEvent:
         """perf-6: _enqueue_on_ui mutates the payload dict in place with
         the coord's ws_id so the browser can discriminate child events."""
         adapter, recorder, _ = self._setup()
-        with adapter._children_lock:
-            adapter._merge_child_ids_locked("coord-a", ["child-a1"])
+        adapter._registry.merge_children("coord-a", ["child-a1"])
         adapter._dispatch_child_event(
             {
                 "type": "cluster_state",
@@ -559,53 +559,160 @@ class TestCoordinatorAdapterDispatchChildEvent:
         )
         assert recorder.enqueued[0]["ws_id"] == "coord-a"
 
-    def test_dispatch_cluster_state_forwards_pending_approval_detail(self) -> None:
-        """The rich approval payload now rides on child_ws_state directly so
-        the browser can mutate liveBadgeCache without a separate live-bulk
-        fetch.  Drift here means the inline approve/deny buttons would
-        regress to chasing the dashboard cache (the load-storm pattern
-        Shape A is unwinding)."""
+    def test_dispatch_cluster_state_does_not_carry_pending_approval_detail(
+        self,
+    ) -> None:
+        """Stage 3 cleanup — the ``pending_approval_detail`` piggyback
+        on ``cluster_state`` is gone. Approval items now arrive via
+        bulk fetch (triggered by ``activity_state="approval"`` in the
+        browser); verdicts via ``child_ws_intent_verdict``; resolution
+        via ``child_ws_approval_resolved``. The state event carries
+        only state + activity_state — no detail field."""
         adapter, recorder, _ = self._setup()
-        with adapter._children_lock:
-            adapter._merge_child_ids_locked("coord-a", ["child-a1"])
-        detail = {
-            "items": [{"call_id": "c1", "header": "tool x"}],
-            "judge_pending": False,
-        }
+        adapter._registry.merge_children("coord-a", ["child-a1"])
         adapter._dispatch_child_event(
             {
                 "type": "cluster_state",
                 "ws_id": "child-a1",
                 "state": "running",
                 "activity_state": "approval",
-                "pending_approval_detail": detail,
             }
         )
         assert len(recorder.enqueued) == 1
         payload = recorder.enqueued[0]
         assert payload["type"] == "child_ws_state"
         assert payload["activity_state"] == "approval"
-        assert payload["pending_approval_detail"] == detail
+        assert "pending_approval_detail" not in payload
 
-    def test_dispatch_cluster_state_pending_approval_detail_none_passes_through(
-        self,
-    ) -> None:
-        """Missing pending_approval_detail (no approval pending, or pre-fix
-        node mid-rolling-upgrade) must forward as None — not raise, not
-        omit — so the browser's handleChildState treats it as "no SSE-
-        supplied detail, fall back to cached value"."""
+    def test_dispatch_intent_verdict_emits_child_ws_intent_verdict(self) -> None:
+        """Stage 3 Step 6 — explicit verdict events are re-emitted as
+        child_ws_intent_verdict on the parent's SSE so the tree UI
+        renders the risk pill without polling."""
         adapter, recorder, _ = self._setup()
-        with adapter._children_lock:
-            adapter._merge_child_ids_locked("coord-a", ["child-a1"])
+        adapter._registry.merge_children("coord-a", ["child-a1"])
+        verdict = {
+            "call_id": "c1",
+            "risk_level": "low",
+            "confidence": 0.92,
+            "recommendation": "approve",
+        }
         adapter._dispatch_child_event(
             {
-                "type": "cluster_state",
+                "type": "intent_verdict",
                 "ws_id": "child-a1",
-                "state": "running",
-                "activity_state": "tool",
+                "node_id": "node-1",
+                "verdict": verdict,
             }
         )
         assert len(recorder.enqueued) == 1
         payload = recorder.enqueued[0]
-        assert "pending_approval_detail" in payload
-        assert payload["pending_approval_detail"] is None
+        assert payload["type"] == "child_ws_intent_verdict"
+        assert payload["child_ws_id"] == "child-a1"
+        assert payload["parent_ws_id"] == "coord-a"
+        assert payload["node_id"] == "node-1"
+        assert payload["verdict"] == verdict
+
+    def test_dispatch_intent_verdict_unknown_child_drops(self) -> None:
+        adapter, recorder, _ = self._setup()
+        adapter._dispatch_child_event(
+            {
+                "type": "intent_verdict",
+                "ws_id": "ws-orphan",
+                "verdict": {"call_id": "c1"},
+            }
+        )
+        assert recorder.enqueued == []
+
+    def test_dispatch_approval_resolved_emits_child_ws_approval_resolved(
+        self,
+    ) -> None:
+        """Stage 3 Step 6 — paired with intent_verdict; clears the
+        pending-approval pill on the parent's tree UI in lockstep
+        with the actual decision."""
+        adapter, recorder, _ = self._setup()
+        adapter._registry.merge_children("coord-a", ["child-a1"])
+        adapter._dispatch_child_event(
+            {
+                "type": "approval_resolved",
+                "ws_id": "child-a1",
+                "node_id": "node-1",
+                "approved": True,
+                "feedback": "lgtm",
+                "always": False,
+            }
+        )
+        assert len(recorder.enqueued) == 1
+        payload = recorder.enqueued[0]
+        assert payload["type"] == "child_ws_approval_resolved"
+        assert payload["child_ws_id"] == "child-a1"
+        assert payload["parent_ws_id"] == "coord-a"
+        assert payload["approved"] is True
+        assert payload["feedback"] == "lgtm"
+        assert payload["always"] is False
+
+    def test_dispatch_approval_resolved_coerces_missing_fields(self) -> None:
+        """Older nodes mid-rolling-upgrade may omit approved / always /
+        feedback; dispatch coerces to safe defaults."""
+        adapter, recorder, _ = self._setup()
+        adapter._registry.merge_children("coord-a", ["child-a1"])
+        adapter._dispatch_child_event({"type": "approval_resolved", "ws_id": "child-a1"})
+        assert len(recorder.enqueued) == 1
+        payload = recorder.enqueued[0]
+        assert payload["approved"] is False
+        assert payload["feedback"] == ""
+        assert payload["always"] is False
+
+    def test_dispatch_approval_resolved_unknown_child_drops(self) -> None:
+        """Symmetric to the intent_verdict drop test — events for
+        ws_ids the registry doesn't know about silently drop instead
+        of fanning out to a parent that has no business seeing them."""
+        adapter, recorder, _ = self._setup()
+        adapter._dispatch_child_event(
+            {
+                "type": "approval_resolved",
+                "ws_id": "ws-orphan",
+                "approved": True,
+            },
+        )
+        assert recorder.enqueued == []
+
+    def test_dispatch_approve_request_emits_child_ws_approve_request(
+        self,
+    ) -> None:
+        """Push path for the initial approval items — eliminates the
+        bulk-fetch race that left the coord row stuck on a loading
+        placeholder when the bulk fetch landed in the gap between
+        _emit_state(ATTENTION) and approve_tools setting _pending_approval."""
+        adapter, recorder, _ = self._setup()
+        adapter._registry.merge_children("coord-a", ["child-a1"])
+        detail = {
+            "type": "approve_request",
+            "items": [{"call_id": "c1", "header": "tool x"}],
+            "judge_pending": True,
+        }
+        adapter._dispatch_child_event(
+            {
+                "type": "approve_request",
+                "ws_id": "child-a1",
+                "node_id": "node-1",
+                "detail": detail,
+            },
+        )
+        assert len(recorder.enqueued) == 1
+        payload = recorder.enqueued[0]
+        assert payload["type"] == "child_ws_approve_request"
+        assert payload["child_ws_id"] == "child-a1"
+        assert payload["parent_ws_id"] == "coord-a"
+        assert payload["node_id"] == "node-1"
+        assert payload["detail"] == detail
+
+    def test_dispatch_approve_request_unknown_child_drops(self) -> None:
+        adapter, recorder, _ = self._setup()
+        adapter._dispatch_child_event(
+            {
+                "type": "approve_request",
+                "ws_id": "ws-orphan",
+                "detail": {"items": []},
+            },
+        )
+        assert recorder.enqueued == []

tests/test_coordinator_page.py

@@ -79,9 +79,10 @@ def test_coordinator_js_exposes_inline_approval_helpers():
     assert "function submitChildApproval" in body or "submitChildApproval(" in body
     # The shared approve POST helper (parameterized for child ws_ids)
     assert "function approveWorkstream" in body or "approveWorkstream(" in body
-    # The urgent live-bulk fetch option that fires on activity_state
-    # transitions in/out of "approval"
-    assert "{ urgent: true }" in body or "urgent: true" in body
+    # The 409 stale-call_id retry path uses invalidateLiveBadge +
+    # scheduleLiveFetch (Stage 3 cleanup removed the urgent flag —
+    # cache invalidation makes the TTL gate fall through naturally).
+    assert "invalidateLiveBadge(targetWsId)" in body
     # Server-side payload field — drift here means the JS reads stale keys
     assert "pending_approval_detail" in body
     # Reconnect parity (chunk 4): the SSE re-open handler must drop
@@ -90,10 +91,10 @@ def test_coordinator_js_exposes_inline_approval_helpers():
     # can't render zombie approve/deny buttons on a row whose
     # approval was resolved during the gap. The implementation
     # iterates the cache and deletes only !permanent entries —
-    # asserting the literal Map iteration form keeps a refactor
-    # back to liveBadgeCache.clear() (which would re-pay 403s on
-    # every reconnect for denied ids) from sneaking in.
-    assert "liveBadgeCache.delete" in body
+    # asserting the literal helper call keeps a refactor back to
+    # _liveBadgeCacheClear() (which would re-pay 403s on every
+    # reconnect for denied ids) from sneaking in.
+    assert "_liveBadgeCacheDelete" in body
     # Edge-case matrix sentinel labels — POLICY-BLOCKED renders when
     # an item has error set + needs_approval=False (server-side
     # tool policy already blocked the call); "(judge unavailable)"
@@ -113,15 +114,19 @@ def test_coordinator_js_exposes_inline_approval_helpers():
     # coord-self ws_id (the coord lives on the console process).
     # Children live on cluster nodes and 404 without the prefix.
     assert "/v1/api/route/workstreams/" in body
-    # Late-judge polling — the LLM judge runs async on the child
-    # node and never pushes a signal that reaches the coord, so
-    # the row's pending_approval_detail with judge_pending=true
-    # would freeze on heuristic verdicts forever without this
-    # poll loop. The poller is GLOBAL (not per-row) so off-screen
-    # rows still refresh — a per-row poller's scheduleLiveFetch
-    # call short-circuits on non-visible rows, leaving them stuck.
-    assert "_maybeStartJudgePoll" in body
-    assert "_judgePollTick" in body
+    # Late-arriving LLM judge verdicts — Stage 3 Step 5 promoted
+    # ``intent_verdict`` and ``approval_resolved`` to first-class
+    # cluster-bus event types, so the coord adapter dispatches them
+    # as ``child_ws_intent_verdict`` / ``child_ws_approval_resolved``
+    # on the parent's SSE stream. The browser handlers write
+    # directly to liveBadgeCache (bypassing scheduleLiveFetch's
+    # visibility gate cleanly) so off-screen rows pick up verdicts
+    # without polling. Replaced the old ``_judgePollTick`` 90-second
+    # global poll loop and its visibility-gate-bypass workaround.
+    assert "handleChildIntentVerdict" in body
+    assert "handleChildApprovalResolved" in body
+    assert "child_ws_intent_verdict" in body
+    assert "child_ws_approval_resolved" in body
     # Reload parity for the coord-self approval gate: init() must
     # consume the authoritative GET /workstreams snapshot's
     # pending_approval_detail so a freshly opened tab can render
@@ -154,18 +159,19 @@ def test_coordinator_js_exposes_inline_approval_helpers():
     assert "callOutcomes" in body
 
 
-def test_coordinator_js_handle_child_state_reads_sse_pending_approval_detail():
-    """Lock the Shape A behavior change: child_ws_state SSE events now
-    carry ``pending_approval_detail`` directly so the browser mutates
-    ``liveBadgeCache`` without firing an urgent live-bulk fetch on
-    every activity_state transition into/out of approval.  A refactor
-    that re-introduces the urgent-fetch path on routine transitions
-    (or drops the SSE-source merge guard in flushLiveFetches) would
-    re-open the load-storm pattern this PR is fixing.
+def test_coordinator_js_handle_child_state_no_longer_reads_sse_pending_approval_detail():
+    """Stage 3 cleanup — ``pending_approval_detail`` is no longer
+    piggybacked on child_ws_state events. Approval items now arrive
+    via bulk fetch on the activity_state="approval" transition;
+    verdicts via the explicit ``child_ws_intent_verdict`` event class;
+    resolution via ``child_ws_approval_resolved``. A refactor that
+    re-introduces the piggyback would silently re-open the
+    duplicate-path race the dedicated event classes were added to
+    eliminate.
 
     Structural assertions (regex against multi-line source) — symbol-
     presence alone wouldn't catch a guard that keeps the names but
-    inverts the comparison or drops the ``prev.live`` check.  This
+    inverts the comparison or drops the ``prev.live`` check. This
     codebase has no JS test framework, so locking the guard's shape
     here is the next-best thing to a behavioral test."""
     import re
@@ -176,26 +182,46 @@ def test_coordinator_js_handle_child_state_reads_sse_pending_approval_detail():
     )
     body = coord_js.read_text(encoding="utf-8")
 
-    # handleChildState now reads the SSE-supplied detail.
-    assert "ev.pending_approval_detail" in body
-    # The pre-fix urgent-fetch on activity_state transitions is
-    # gone (the 409 retry path keeps its own ``{ urgent: true }``
-    # for stale-call_id refresh — that's a different scenario).
+    # The piggyback read is gone from handleChildState. (The string
+    # may still appear elsewhere — e.g. handleChildIntentVerdict
+    # reading from cache, or comments — but never as ``ev.pending_approval_detail``.)
+    assert "ev.pending_approval_detail" not in body
+    # The pre-fix urgent-fetch on activity_state transitions is gone.
     assert "enteredApproval" not in body
     assert "leftApproval" not in body
+    # ``pendingApproval`` flag derivation must check BOTH state and
+    # activity_state. The worker thread can fire the state transition
+    # to "attention" before approve_tools updates activity_state, so
+    # checking only activity_state misses children that legitimately
+    # need approval. Pin the disjunction so the regression doesn't
+    # silently re-introduce.
+    assert re.search(
+        r'existing\.state\s*===\s*"attention"\s*\|\|\s*'
+        r'existing\.activity_state\s*===\s*"approval"',
+        body,
+    ), (
+        "handleChildState must derive pendingApproval from "
+        "(state==='attention' || activity_state==='approval')"
+    )
 
     # SSE-authoritative window constant is defined and used.
     assert re.search(r"\bconst\s+SSE_AUTHORITATIVE_MS\s*=\s*\d+", body), (
         "SSE_AUTHORITATIVE_MS constant must be defined as a numeric literal"
     )
 
-    # handleChildState writes sseUpdatedAt = Date.now() into the cache
-    # entry it sets.  This is the SSE-source tag; without it, the
-    # merge guard in flushLiveFetches has nothing to gate on.
+    # SSE writers tag entries with sseUpdatedAt: Date.now() so the
+    # merge guard in flushLiveFetches preserves them against stale
+    # bulk-fetch responses. handleChildState only stamps when it
+    # AUTHORITATIVELY clears the detail (off-approval transition);
+    # writers that stamp unconditionally are intent_verdict (verdict
+    # stamp), approval_resolved (clear), and the optimistic-clear
+    # path in submitChildApproval. Pinning the literal Date.now()
+    # call keeps a refactor that drops the SSE-source tag entirely
+    # from sneaking in.
     assert re.search(
         r"sseUpdatedAt:\s*Date\.now\(\)",
         body,
-    ), "handleChildState must write sseUpdatedAt: Date.now() onto liveBadgeCache entries"
+    ), "Critical SSE writers must stamp sseUpdatedAt: Date.now()"
 
     # flushLiveFetches' merge guard structure: SSE-set pending_approval
     # / _detail wins over a stale bulk-poll snapshot when (live) AND

tests/test_history_decoration.py

@@ -0,0 +1,232 @@
+"""Unit tests for ``turnstone.core.history_decoration``.
+
+The decoration helpers are shared between two surfaces — interactive's
+SSE replay (``_build_history``) and the lifted ``/history`` REST
+endpoint (``make_history_handler``, used by both interactive and
+coord). Pinning the wire shape here lets a future schema/projection
+change land in one file rather than spread across the two surfaces.
+"""
+
+from __future__ import annotations
+
+from turnstone.core.history_decoration import (
+    build_output_assessment_payload,
+    build_verdict_payload,
+    decorate_history_messages,
+    decorate_tool_call,
+)
+
+
+class TestBuildVerdictPayload:
+    """The wire-shape projection that's the single source of truth for
+    what intent_verdict fields ship to the client."""
+
+    def test_skips_unflagged_baseline(self) -> None:
+        """``risk_level`` "none" is the unflagged-tool baseline; the
+        client filters those anyway, so projecting None at the wire
+        layer keeps the payload tight on long workstreams."""
+        row = {"risk_level": "none", "recommendation": "approve", "tier": "heuristic"}
+        assert build_verdict_payload(row) is None
+
+    def test_drops_call_id_and_func_name(self) -> None:
+        """The client already has these on ``tc.id`` / ``tc.name``;
+        re-shipping them per-tool_call would balloon long replays."""
+        row = {
+            "call_id": "call_abc",
+            "func_name": "bash",
+            "risk_level": "medium",
+            "recommendation": "review",
+            "confidence": 0.8,
+            "intent_summary": "summary",
+            "tier": "heuristic",
+        }
+        out = build_verdict_payload(row)
+        assert out is not None
+        assert "call_id" not in out
+        assert "func_name" not in out
+        # Sanity — the kept fields are the ones renderVerdictBadge reads.
+        assert out["risk_level"] == "medium"
+        assert out["recommendation"] == "review"
+        assert out["confidence"] == 0.8
+        assert out["intent_summary"] == "summary"
+        assert out["tier"] == "heuristic"
+
+    def test_includes_reasoning_for_either_tier_when_present(self) -> None:
+        """Heuristic verdicts in this project emit structured
+        rationales (one per matched pattern) — e.g.
+        ``policy.py`` writes a reasoning string per heuristic hit.
+        Ship the field for either tier when it has content; only
+        omit when the row didn't write one."""
+        for tier in ("heuristic", "llm"):
+            row = {
+                "risk_level": "high",
+                "tier": tier,
+                "reasoning": "The command exfiltrates ~/.ssh/id_rsa over an external connection.",
+            }
+            out = build_verdict_payload(row)
+            assert out is not None
+            assert "id_rsa" in out["reasoning"]
+
+    def test_omits_reasoning_when_empty(self) -> None:
+        """An absent / empty reasoning string shouldn't ship as
+        ``reasoning: ""`` — the rationale ``<details>`` block on the
+        client renders an empty disclosure when the field is present
+        but empty."""
+        row = {"risk_level": "high", "tier": "heuristic", "reasoning": ""}
+        out = build_verdict_payload(row)
+        assert out is not None
+        assert "reasoning" not in out
+
+    def test_includes_judge_model_when_present(self) -> None:
+        """``judge_model`` rides through so the batch tier badge can
+        render ``⚖ llm:claude-haiku-4`` on history-only replays
+        rather than the bare ``⚖ llm`` label."""
+        row = {"risk_level": "high", "tier": "llm", "judge_model": "claude-haiku-4"}
+        out = build_verdict_payload(row)
+        assert out is not None
+        assert out["judge_model"] == "claude-haiku-4"
+
+    def test_omits_judge_model_when_empty(self) -> None:
+        row = {"risk_level": "medium", "tier": "heuristic", "judge_model": ""}
+        out = build_verdict_payload(row)
+        assert out is not None
+        assert "judge_model" not in out
+
+
+class TestBuildOutputAssessmentPayload:
+    """Output-guard wire shape — flags decoded from JSON string at
+    this layer so the client never has to parse twice."""
+
+    def test_skips_unflagged_baseline(self) -> None:
+        row = {"risk_level": "none", "flags": "[]"}
+        assert build_output_assessment_payload(row) is None
+
+    def test_decodes_flags_from_json(self) -> None:
+        row = {"risk_level": "high", "flags": '["api_key","email"]', "redacted": 1}
+        out = build_output_assessment_payload(row)
+        assert out is not None
+        assert out["flags"] == ["api_key", "email"]
+        assert out["redacted"] is True
+        assert out["risk_level"] == "high"
+
+    def test_handles_malformed_flags_json(self) -> None:
+        """Bad JSON in ``flags`` must not block the rest of the
+        assessment from rendering — degrade to empty list."""
+        row = {"risk_level": "medium", "flags": "not-json", "redacted": 0}
+        out = build_output_assessment_payload(row)
+        assert out is not None
+        assert out["flags"] == []
+        assert out["redacted"] is False
+
+
+class TestDecorateToolCall:
+    """In-place mutation of either OpenAI-format or flattened tool_call
+    entries — both shapes carry ``id`` at the top level."""
+
+    def test_attaches_verdict_when_present(self) -> None:
+        tc: dict[str, object] = {"id": "call_1", "function": {"name": "bash", "arguments": "{}"}}
+        verdicts = {
+            "call_1": {
+                "risk_level": "medium",
+                "recommendation": "review",
+                "confidence": 0.7,
+                "intent_summary": "summary",
+                "tier": "heuristic",
+            }
+        }
+        decorate_tool_call(tc, verdicts, {})
+        assert "verdict" in tc
+        assert tc["verdict"]["risk_level"] == "medium"  # type: ignore[index]
+
+    def test_skips_when_no_call_id_match(self) -> None:
+        tc: dict[str, object] = {"id": "call_other", "name": "bash"}
+        verdicts = {
+            "call_1": {"risk_level": "medium", "tier": "heuristic"},
+        }
+        decorate_tool_call(tc, verdicts, {})
+        assert "verdict" not in tc
+
+    def test_skips_unflagged_verdict(self) -> None:
+        """``build_verdict_payload`` returns None for unflagged rows;
+        decorate_tool_call must not stamp ``verdict`` in that case."""
+        tc: dict[str, object] = {"id": "call_1", "name": "bash"}
+        verdicts = {"call_1": {"risk_level": "none", "tier": "heuristic"}}
+        decorate_tool_call(tc, verdicts, {})
+        assert "verdict" not in tc
+
+    def test_handles_empty_id(self) -> None:
+        """A tool_call with no id can't be paired against the lookup
+        table — must not raise (or stamp the wrong row's verdict)."""
+        tc: dict[str, object] = {"id": "", "name": "bash"}
+        verdicts = {"call_1": {"risk_level": "high", "tier": "heuristic"}}
+        decorate_tool_call(tc, verdicts, {})
+        assert "verdict" not in tc
+
+
+class TestDecorateHistoryMessages:
+    """End-to-end mutation of a /history-shaped message list — covers
+    the full transform applied by ``make_history_handler``."""
+
+    def test_decorates_tool_calls_and_marks_truncated(self) -> None:
+        verdicts = {
+            "call_a": {
+                "risk_level": "high",
+                "recommendation": "deny",
+                "confidence": 0.95,
+                "intent_summary": "exfil",
+                "tier": "llm",
+                "reasoning": "ssh key access",
+            }
+        }
+        assessments = {
+            "call_a": {"risk_level": "high", "flags": '["secret"]', "redacted": 1},
+        }
+        # Tool result content of exactly TOOL_RESULT_STORAGE_CAP chars
+        # hits the storage cap (longer is impossible — storage clamps
+        # at the cap).  Reference the constant rather than a literal so
+        # this test stays correct if the cap moves again.
+        from turnstone.core.history_decoration import TOOL_RESULT_STORAGE_CAP
+
+        truncated_content = "x" * TOOL_RESULT_STORAGE_CAP
+        messages: list[dict[str, object]] = [
+            {"role": "user", "content": "hi"},
+            {
+                "role": "assistant",
+                "content": "running",
+                "tool_calls": [
+                    {
+                        "id": "call_a",
+                        "function": {"name": "bash", "arguments": "{}"},
+                    }
+                ],
+            },
+            {"role": "tool", "tool_call_id": "call_a", "content": truncated_content},
+            {"role": "tool", "tool_call_id": "call_b", "content": "short"},
+        ]
+        decorate_history_messages(messages, verdicts, assessments)
+        # Assistant tool_calls got both decorations.
+        tc = messages[1]["tool_calls"][0]  # type: ignore[index]
+        assert tc["verdict"]["risk_level"] == "high"
+        assert tc["verdict"]["tier"] == "llm"
+        assert "reasoning" in tc["verdict"]
+        assert tc["output_assessment"]["flags"] == ["secret"]
+        assert tc["output_assessment"]["redacted"] is True
+        # Truncated tool message got the flag; the short one did not.
+        assert messages[2].get("truncated") is True
+        assert "truncated" not in messages[3]
+
+    def test_no_op_on_empty_indexes(self) -> None:
+        """When neither table has rows for the workstream, the wire
+        shape passes through unchanged — replay must degrade
+        gracefully when verdict storage is empty / unavailable."""
+        messages: list[dict[str, object]] = [
+            {
+                "role": "assistant",
+                "content": "",
+                "tool_calls": [{"id": "call_a", "function": {"name": "bash", "arguments": "{}"}}],
+            },
+        ]
+        decorate_history_messages(messages, {}, {})
+        tc = messages[0]["tool_calls"][0]  # type: ignore[index]
+        assert "verdict" not in tc
+        assert "output_assessment" not in tc

tests/test_metacognition.py

@@ -8,6 +8,7 @@ from turnstone.core.metacognition import (
     NUDGE_RESUME,
     NUDGE_START,
     NUDGE_TOOL_ERROR,
+    RepeatDetector,
     detect_completion,
     detect_correction,
     format_nudge,
@@ -308,3 +309,70 @@ class TestRepeatNudge:
         """Repeat nudge should fire even with zero memories."""
         state: dict[str, float] = {}
         assert should_nudge("repeat", state, message_count=5, memory_count=0) is True
+
+
+class TestRepeatDetector:
+    """Repeat-detection streak machine — fires only when the same signature
+    is recorded ``threshold`` times *consecutively* (default 3).  Recording
+    any different signature resets the streak, so an interrupted repeat
+    isn't flagged as a stuck loop."""
+
+    def test_below_threshold_does_not_fire(self):
+        det = RepeatDetector()
+        assert det.record("a") is False
+        assert det.record("a") is False  # second call still under threshold
+
+    def test_at_threshold_fires(self):
+        det = RepeatDetector()
+        det.record("a")
+        det.record("a")
+        assert det.record("a") is True
+
+    def test_continues_to_fire_past_threshold(self):
+        # Caller is responsible for clearing after a fire — until they do,
+        # subsequent identical calls keep returning True.
+        det = RepeatDetector()
+        det.record("a")
+        det.record("a")
+        assert det.record("a") is True
+        assert det.record("a") is True
+
+    def test_clear_resets_count(self):
+        det = RepeatDetector()
+        det.record("a")
+        det.record("a")
+        det.clear()
+        assert det.record("a") is False  # back to 1 after clear
+
+    def test_intervening_sig_resets_streak(self):
+        # The streak is consecutive: recording any other sig mid-streak
+        # discards the in-progress count.  An alternating pattern like
+        # [A, A, B, A, A] is two short streaks of 2, not a streak of 4.
+        det = RepeatDetector()
+        det.record("a")
+        det.record("a")
+        assert det.record("b") is False  # b at count 1; a's streak is gone
+        assert det.record("a") is False  # a starts fresh at 1
+        assert det.record("a") is False  # a at 2
+        assert det.record("a") is True  # a hits 3 — fresh streak completes
+
+    def test_errored_signature_counts_toward_repeat(self):
+        # Regression: when metacog was split out of the system message,
+        # the error-output skip got reintroduced and stuck-loop detection
+        # silently broke for tools that kept failing.  Detector itself is
+        # signature-only — error vs. success is the caller's policy.
+        det = RepeatDetector()
+        # Caller records an errored call's sig the same as a successful one;
+        # the streak is what matters.
+        for _ in range(3):
+            last = det.record("bash:ls /nonexistent")
+        assert last is True
+
+    def test_custom_threshold(self):
+        det = RepeatDetector(threshold=2)
+        assert det.record("a") is False
+        assert det.record("a") is True
+
+    def test_threshold_one_fires_immediately(self):
+        det = RepeatDetector(threshold=1)
+        assert det.record("a") is True

tests/test_providers.py

@@ -224,6 +224,25 @@ class TestOpenAIProvider:
         sanitize_messages([original])
         assert original["content"] is None
 
+    def test_sanitize_messages_strips_underscore_sibling_keys(self) -> None:
+        """Internal sibling metadata (``_reminders``, ``_reminders_delivered``,
+        ``_attachments_meta``, ``_provider_content``) must be stripped
+        before the wire — the OpenAI-compat APIs reject unknown fields."""
+        msgs = [
+            {
+                "role": "user",
+                "content": "hi",
+                "_reminders": [{"type": "correction", "text": "watch"}],
+                "_reminders_delivered": True,
+                "_attachments_meta": [{"kind": "image"}],
+            }
+        ]
+        result = sanitize_messages(msgs)
+        assert result == [{"role": "user", "content": "hi"}]
+        assert "_reminders" not in result[0]
+        assert "_reminders_delivered" not in result[0]
+        assert "_attachments_meta" not in result[0]
+
     # -- sanitize_messages: orphan detection -----------------------------------
 
     def test_sanitize_orphaned_tool_call_synthesized(self) -> None:

tests/test_session_manager.py

@@ -18,13 +18,22 @@ from __future__ import annotations
 import threading
 import time
 from dataclasses import dataclass
-from typing import Any
+from datetime import UTC, datetime
+from typing import TYPE_CHECKING, Any
+
+if TYPE_CHECKING:
+    from collections.abc import Callable
 from unittest.mock import MagicMock
 
 import pytest
 
 from turnstone.core.session_manager import SessionKindAdapter, SessionManager
-from turnstone.core.workstream import Workstream, WorkstreamKind, WorkstreamState
+from turnstone.core.workstream import (
+    BULK_CLOSE_STATE_VALUES,
+    Workstream,
+    WorkstreamKind,
+    WorkstreamState,
+)
 
 # ---------------------------------------------------------------------------
 # Test fixtures
@@ -156,6 +165,8 @@ class _Row:
     kind: str
     state: str = "idle"
     parent_ws_id: str | None = None
+    updated: str = ""
+    node_id: str | None = None
 
 
 class FakeStorage:
@@ -164,8 +175,19 @@ class FakeStorage:
     def __init__(self) -> None:
         self.rows: dict[str, _Row] = {}
         self.state_updates: list[tuple[str, str]] = []
+        self.touch_calls: list[str] = []
         self.register_raises = False
         self.lock = threading.Lock()
+        # Live-services lookup target for close_idle pass 2.  Map
+        # service_type → list of live service_ids.  Tests that exercise
+        # liveness scoping populate this directly; default empty means
+        # "no peers alive" (every row unprotected by liveness).
+        self.live_services: dict[str, list[str]] = {}
+        self.list_services_raises = False
+
+    @staticmethod
+    def _now_iso() -> str:
+        return datetime.now(UTC).strftime("%Y-%m-%dT%H:%M:%S")
 
     def register_workstream(
         self,
@@ -178,6 +200,8 @@ class FakeStorage:
         parent_ws_id: str | None = None,
         skill_id: str = "",
         skill_version: int = 0,
+        state: str = "idle",
+        updated: str | None = None,
     ) -> None:
         if self.register_raises:
             raise RuntimeError("register forced failure")
@@ -188,14 +212,66 @@ class FakeStorage:
                 user_id=user_id or "",
                 name=name,
                 kind=kind_str,
+                state=state,
                 parent_ws_id=parent_ws_id,
+                updated=updated if updated is not None else self._now_iso(),
+                node_id=node_id,
             )
 
+    def touch_workstream(self, ws_id: str) -> None:
+        with self.lock:
+            self.touch_calls.append(ws_id)
+            if ws_id in self.rows:
+                self.rows[ws_id].updated = self._now_iso()
+
     def update_workstream_state(self, ws_id: str, state: str) -> None:
         with self.lock:
             self.state_updates.append((ws_id, state))
             if ws_id in self.rows:
                 self.rows[ws_id].state = state
+                self.rows[ws_id].updated = self._now_iso()
+
+    def bulk_close_stale_orphans(
+        self,
+        kind: WorkstreamKind | str,
+        cutoff: str,
+        exclude_ws_ids: list[str],
+        live_node_ids: list[str] | None = None,
+    ) -> list[str]:
+        kind_str = kind.value if isinstance(kind, WorkstreamKind) else str(kind)
+        excluded = set(exclude_ws_ids)
+        live_set = set(live_node_ids) if live_node_ids else set()
+        now = self._now_iso()
+        closed: list[str] = []
+        with self.lock:
+            for ws_id, row in self.rows.items():
+                if (
+                    row.kind == kind_str
+                    and row.state in BULK_CLOSE_STATE_VALUES
+                    and row.updated < cutoff
+                    and ws_id not in excluded
+                ):
+                    # Liveness gate: when live_node_ids was provided AND
+                    # non-empty, protect rows whose owner is in the live
+                    # set.  NULL node_id is always eligible.  When
+                    # live_node_ids is None or empty, no protection
+                    # (mirror of the real backends).
+                    if live_node_ids and row.node_id is not None and row.node_id in live_set:
+                        continue
+                    row.state = "closed"
+                    row.updated = now
+                    self.state_updates.append((ws_id, "closed"))
+                    closed.append(ws_id)
+        return closed
+
+    def list_services(self, service_type: str, max_age_seconds: int = 120) -> list[dict[str, str]]:
+        if self.list_services_raises:
+            raise RuntimeError("list_services forced failure")
+        with self.lock:
+            return [
+                {"service_id": sid, "service_type": service_type}
+                for sid in self.live_services.get(service_type, [])
+            ]
 
     def get_workstream(self, ws_id: str) -> dict[str, Any] | None:
         with self.lock:
@@ -228,6 +304,7 @@ def _make_manager(
     max_active: int = 5,
     storage: FakeStorage | None = None,
     event_emitter: Any = _EMITTER_DEFAULT,
+    node_id: str | None = None,
 ) -> tuple[SessionManager, FakeAdapter, FakeStorage]:
     """Build a SessionManager wired to a FakeAdapter for both Protocols.
 
@@ -246,6 +323,7 @@ def _make_manager(
         storage=storage,
         max_active=max_active,
         event_emitter=emitter,
+        node_id=node_id,
     )
     return mgr, adapter, storage
 
@@ -579,6 +657,24 @@ def test_open_resurrects_closed_state() -> None:
     assert ws_id in [e.ws_id for e in adapter.events_of("rehydrated")]
 
 
+def test_open_touches_workstream_on_rehydrate() -> None:
+    """Rehydrating a workstream must bump its ``updated`` so a concurrent
+    close_idle pass-2 in this same process can't clobber the freshly-loaded
+    row to ``closed`` because its DB ``updated`` is older than the cutoff.
+    The touch is best-effort (try/except in open()) but must fire on the
+    happy path."""
+    mgr, _, storage = _make_manager()
+    ws = mgr.create(user_id="u1")
+    ws_id = ws.id
+    mgr.close(ws_id)
+    storage.touch_calls.clear()  # only care about touches from rehydrate
+
+    reopened = mgr.open(ws_id)
+
+    assert reopened is not None
+    assert ws_id in storage.touch_calls
+
+
 def test_open_ignores_owner_mismatch() -> None:
     # Turnstone is a trusted-team tool; row-level ownership is
     # metadata, not an access boundary.  ``open`` no longer cares
@@ -827,6 +923,197 @@ def test_close_idle_on_empty_manager_returns_empty_list() -> None:
     assert mgr.close_idle(max_age_seconds=1.0) == []
 
 
+def test_close_idle_runs_db_orphan_pass() -> None:
+    """DB rows of this kind that aren't loaded into the manager get
+    bulk-closed when their ``updated`` is older than the cutoff.  Catches
+    the orphan-after-process-restart case the original close_idle missed."""
+    mgr, _, storage = _make_manager()
+    # Orphan rows live in storage but were never loaded via mgr.create.
+    storage.register_workstream(
+        "orphan-1",
+        kind=WorkstreamKind.INTERACTIVE,
+        updated="2020-01-01T00:00:00",
+    )
+    storage.register_workstream(
+        "orphan-2",
+        kind=WorkstreamKind.INTERACTIVE,
+        state="thinking",
+        updated="2020-01-01T00:00:00",
+    )
+
+    closed = mgr.close_idle(max_age_seconds=0.0)
+
+    assert set(closed) == {"orphan-1", "orphan-2"}
+    assert ("orphan-1", "closed") in storage.state_updates
+    assert ("orphan-2", "closed") in storage.state_updates
+    assert storage.rows["orphan-1"].state == "closed"
+    assert storage.rows["orphan-2"].state == "closed"
+
+
+def test_close_idle_excludes_loaded_workstreams_from_db_pass() -> None:
+    """A workstream loaded into memory must NOT be reaped by the DB
+    orphan pass even when its storage ``updated`` is stale — the
+    in-memory pass owns those.  Verifies the exclude_ws_ids plumbing."""
+    mgr, _, storage = _make_manager()
+    ws = mgr.create(user_id="u1")
+    # Force the storage row's ``updated`` to look stale.  In practice
+    # ``set_state`` would bump it, but we're simulating a long-running
+    # active workstream whose updated drifted older than the cutoff.
+    storage.rows[ws.id].updated = "2020-01-01T00:00:00"
+
+    # Huge timeout so the in-memory IDLE pass skips it (stays loaded).
+    closed = mgr.close_idle(max_age_seconds=10_000.0)
+
+    assert ws.id not in closed
+    assert mgr.get(ws.id) is not None
+    assert storage.rows[ws.id].state == "idle"
+
+
+def test_close_idle_filters_db_orphans_by_kind() -> None:
+    """An interactive manager's close_idle must not touch coordinator
+    rows in storage and vice versa.  Without this filter, both managers
+    would race to close each other's rows."""
+    mgr, _, storage = _make_manager()  # interactive by default
+    storage.register_workstream(
+        "coord-orphan",
+        kind=WorkstreamKind.COORDINATOR,
+        updated="2020-01-01T00:00:00",
+    )
+    storage.register_workstream(
+        "interactive-orphan",
+        kind=WorkstreamKind.INTERACTIVE,
+        updated="2020-01-01T00:00:00",
+    )
+
+    closed = mgr.close_idle(max_age_seconds=0.0)
+
+    assert "interactive-orphan" in closed
+    assert "coord-orphan" not in closed
+    assert storage.rows["coord-orphan"].state == "idle"
+    assert storage.rows["interactive-orphan"].state == "closed"
+
+
+def test_close_idle_protects_rows_owned_by_live_services() -> None:
+    """Multi-node correctness: rows whose ``node_id`` matches a service
+    with a recent heartbeat must NOT be reaped, even when *this* manager
+    is on a different node — the alive peer may legitimately have them
+    loaded.  Liveness is the rendezvous router's primitive (post-PR-#384);
+    using it here keeps reap scoping aligned with routing.
+
+    Default ``_make_manager`` uses an INTERACTIVE adapter, which derives
+    ``service_type='server'`` — so live_services seeded under "server"
+    are what the manager queries."""
+    mgr, _, storage = _make_manager()
+    storage.live_services["server"] = ["node-b"]  # only node-b is alive
+    storage.register_workstream(
+        "ours-from-dead-node",
+        node_id="node-a",  # dead pod (not in live_services)
+        kind=WorkstreamKind.INTERACTIVE,
+        updated="2020-01-01T00:00:00",
+    )
+    storage.register_workstream(
+        "theirs-still-alive",
+        node_id="node-b",
+        kind=WorkstreamKind.INTERACTIVE,
+        updated="2020-01-01T00:00:00",
+    )
+
+    closed = mgr.close_idle(max_age_seconds=0.0)
+
+    assert closed == ["ours-from-dead-node"]
+    assert storage.rows["ours-from-dead-node"].state == "closed"
+    assert storage.rows["theirs-still-alive"].state == "idle"
+
+
+def test_close_idle_protects_live_services_for_coordinator_kind() -> None:
+    """Coord-side parity: a coordinator manager derives
+    ``service_type='console'``, so live_services seeded under "console"
+    are what gets queried.  Mirrors the interactive test to ensure both
+    halves of the production wiring are exercised."""
+    coord_adapter = FakeAdapter(kind=WorkstreamKind.COORDINATOR)
+    mgr, _, storage = _make_manager(coord_adapter)
+    storage.live_services["console"] = ["console"]  # console is alive
+    storage.register_workstream(
+        "alive-console-coord",
+        node_id="console",
+        kind=WorkstreamKind.COORDINATOR,
+        updated="2020-01-01T00:00:00",
+    )
+    storage.register_workstream(
+        "dead-console-coord",
+        node_id="dead-console-instance",  # not in live set
+        kind=WorkstreamKind.COORDINATOR,
+        updated="2020-01-01T00:00:00",
+    )
+
+    closed = mgr.close_idle(max_age_seconds=0.0)
+
+    assert closed == ["dead-console-coord"]
+    assert storage.rows["alive-console-coord"].state == "idle"
+    assert storage.rows["dead-console-coord"].state == "closed"
+
+
+def test_close_idle_reaps_rows_with_null_node_id() -> None:
+    """A row with no ``node_id`` has no owner identity — age alone gates
+    the reap.  Defends against a NULL silently propagating through ``NOT
+    IN (live)`` and protecting orphans forever."""
+    mgr, _, storage = _make_manager()
+    storage.live_services["server"] = ["node-a"]
+    storage.register_workstream(
+        "no-owner",
+        node_id=None,
+        kind=WorkstreamKind.INTERACTIVE,
+        updated="2020-01-01T00:00:00",
+    )
+
+    closed = mgr.close_idle(max_age_seconds=0.0)
+
+    assert closed == ["no-owner"]
+
+
+def test_close_idle_reaps_all_orphans_when_no_peers_alive() -> None:
+    """When ``list_services`` returns an empty list (no heartbeating
+    peers), every stale orphan is unprotected and gets reaped.  This is
+    the cold-start / single-process / dead-cluster-recovery case."""
+    mgr, _, storage = _make_manager()
+    # storage.live_services["server"] left empty — no peers heartbeating
+    storage.register_workstream(
+        "any-node-1",
+        node_id="node-a",
+        kind=WorkstreamKind.INTERACTIVE,
+        updated="2020-01-01T00:00:00",
+    )
+    storage.register_workstream(
+        "any-node-2",
+        node_id="node-b",
+        kind=WorkstreamKind.INTERACTIVE,
+        updated="2020-01-01T00:00:00",
+    )
+
+    closed = mgr.close_idle(max_age_seconds=0.0)
+
+    assert set(closed) == {"any-node-1", "any-node-2"}
+
+
+def test_close_idle_skips_pass_2_when_list_services_fails() -> None:
+    """Conservative fallback: if list_services fails we can't enumerate
+    live owners safely, so pass 2 must skip rather than reap blind.  Pass
+    1 (in-memory IDLE) still runs."""
+    mgr, _, storage = _make_manager()
+    storage.list_services_raises = True
+    storage.register_workstream(
+        "would-be-orphan",
+        node_id="node-a",
+        kind=WorkstreamKind.INTERACTIVE,
+        updated="2020-01-01T00:00:00",
+    )
+
+    closed = mgr.close_idle(max_age_seconds=0.0)
+
+    assert closed == []
+    assert storage.rows["would-be-orphan"].state == "idle"
+
+
 def test_list_all_returns_creation_order() -> None:
     mgr, _, _ = _make_manager()
     a = mgr.create(user_id="u1")
@@ -1084,3 +1371,127 @@ class TestSessionManagerWithStateWriter:
         assert "running" not in ws_writes, (
             f"set_state after close enqueued through buffer: {ws_writes}"
         )
+
+
+# ---------------------------------------------------------------------------
+# Multi-subscriber observer — subscribe_to_state / unsubscribe_from_state
+# ---------------------------------------------------------------------------
+
+
+class TestStateSubscribers:
+    """Multi-subscriber observer for ``set_state``.
+
+    Used by the CLI's background-attention notifier and by
+    ``SameNodeChildSource``. Subscribe / unsubscribe must be safe under
+    concurrent dispatch, and dispatch must not skip / repeat callbacks
+    when subscribers register or unregister mid-iteration.
+    """
+
+    def test_subscribe_fires_on_set_state(self) -> None:
+        mgr, _, _ = _make_manager()
+        ws = mgr.create(user_id="u1", name="ws", skill=None)
+        events: list[tuple[str, str]] = []
+
+        def cb(ws_id: str, state: WorkstreamState) -> None:
+            events.append((ws_id, state.value))
+
+        mgr.subscribe_to_state(cb)
+        mgr.set_state(ws.id, WorkstreamState.RUNNING)
+        assert events == [(ws.id, "running")]
+
+    def test_unsubscribe_stops_firing(self) -> None:
+        mgr, _, _ = _make_manager()
+        ws = mgr.create(user_id="u1", name="ws", skill=None)
+        events: list[str] = []
+
+        def cb(_ws_id: str, state: WorkstreamState) -> None:
+            events.append(state.value)
+
+        mgr.subscribe_to_state(cb)
+        mgr.unsubscribe_from_state(cb)
+        mgr.set_state(ws.id, WorkstreamState.RUNNING)
+        assert events == []
+
+    def test_unsubscribe_unknown_is_noop(self) -> None:
+        mgr, _, _ = _make_manager()
+        # Doesn't raise.
+        mgr.unsubscribe_from_state(lambda *_: None)
+
+    def test_multiple_subscribers_fire_in_registration_order(self) -> None:
+        mgr, _, _ = _make_manager()
+        ws = mgr.create(user_id="u1", name="ws", skill=None)
+        order: list[int] = []
+
+        def make(i: int) -> Callable[[str, WorkstreamState], None]:
+            def cb(_ws_id: str, _state: WorkstreamState) -> None:
+                order.append(i)
+
+            return cb
+
+        mgr.subscribe_to_state(make(1))
+        mgr.subscribe_to_state(make(2))
+        mgr.subscribe_to_state(make(3))
+        mgr.set_state(ws.id, WorkstreamState.IDLE)
+        assert order == [1, 2, 3]
+
+    def test_subscriber_exception_does_not_block_others(self) -> None:
+        mgr, _, _ = _make_manager()
+        ws = mgr.create(user_id="u1", name="ws", skill=None)
+        survived: list[str] = []
+
+        def boom(*_: Any) -> None:
+            raise RuntimeError("subscriber crash")
+
+        def good(_ws_id: str, state: WorkstreamState) -> None:
+            survived.append(state.value)
+
+        mgr.subscribe_to_state(boom)
+        mgr.subscribe_to_state(good)
+        mgr.set_state(ws.id, WorkstreamState.RUNNING)
+        assert survived == ["running"]
+
+    @pytest.mark.parametrize("n_threads", [10, 50])
+    def test_concurrent_subscribe(self, n_threads: int) -> None:
+        """Subscribe from many threads; all callbacks land in the list.
+
+        Validates the lock around mutation — without it the underlying
+        list.append could lose entries under contention.
+        """
+        mgr, _, _ = _make_manager()
+        callbacks = [lambda *_, i=i: None for i in range(n_threads)]
+        threads = [threading.Thread(target=mgr.subscribe_to_state, args=(cb,)) for cb in callbacks]
+        for t in threads:
+            t.start()
+        for t in threads:
+            t.join()
+        # Snapshot under the lock to read the count safely.
+        with mgr._state_subscribers_lock:
+            assert len(mgr._state_subscribers) == n_threads
+
+    def test_subscribe_during_dispatch_does_not_corrupt_iteration(self) -> None:
+        """A subscriber that calls subscribe_to_state during its own
+        callback must not affect the in-flight dispatch (snapshot
+        isolation). This is the bug-1 invariant: mutation during
+        iteration can't shift the iterator's index because dispatch
+        iterates a snapshot, not the live list.
+        """
+        mgr, _, _ = _make_manager()
+        ws = mgr.create(user_id="u1", name="ws", skill=None)
+        fired: list[str] = []
+
+        def late(_ws_id: str, state: WorkstreamState) -> None:
+            fired.append("late:" + state.value)
+
+        def first(_ws_id: str, state: WorkstreamState) -> None:
+            fired.append("first:" + state.value)
+            mgr.subscribe_to_state(late)  # mid-dispatch addition
+
+        mgr.subscribe_to_state(first)
+        mgr.set_state(ws.id, WorkstreamState.RUNNING)
+        # ``late`` was added during dispatch but the snapshot was
+        # already frozen — so it doesn't fire on this round.
+        assert fired == ["first:running"]
+        # Next round it does fire, in registration order after first.
+        fired.clear()
+        mgr.set_state(ws.id, WorkstreamState.IDLE)
+        assert fired == ["first:idle", "late:idle"]

tests/test_storage_sqlite.py

@@ -4,6 +4,10 @@ from __future__ import annotations
 
 from typing import Any
 
+import sqlalchemy as sa
+
+from turnstone.core.storage._schema import workstreams
+
 # -- Workstream registration ---------------------------------------------------
 
 
@@ -664,6 +668,277 @@ class TestBatchPrimitives:
         assert result == {"never-seen": 0}
 
 
+# -- bulk_close_stale_orphans --------------------------------------------------
+
+
+def _force_updated(backend: Any, ws_id: str, updated: str) -> None:
+    """Stamp a workstream row's ``updated`` column directly.
+
+    The public surface only sets ``updated`` to ``now``, which makes it
+    impossible to fabricate a stale row through register/update calls.
+    Reaches into ``backend._engine`` — same access pattern conftest uses
+    for cross-backend cleanup.
+    """
+    with backend._engine.connect() as conn:
+        conn.execute(
+            sa.update(workstreams).where(workstreams.c.ws_id == ws_id).values(updated=updated)
+        )
+        conn.commit()
+
+
+class TestBulkCloseStaleOrphans:
+    def test_closes_stale_non_terminal_rows_of_kind(self, backend):
+        backend.register_workstream("stale-idle", kind="interactive")
+        backend.register_workstream("stale-thinking", kind="interactive")
+        backend.update_workstream_state("stale-thinking", "thinking")
+        backend.register_workstream("fresh-idle", kind="interactive")
+        _force_updated(backend, "stale-idle", "2020-01-01T00:00:00")
+        _force_updated(backend, "stale-thinking", "2020-01-01T00:00:00")
+        # fresh-idle stays at registration time (effectively now)
+
+        closed = backend.bulk_close_stale_orphans(
+            "interactive", cutoff="2024-01-01T00:00:00", exclude_ws_ids=[]
+        )
+
+        assert set(closed) == {"stale-idle", "stale-thinking"}
+        rows = backend.get_workstreams_batch(["stale-idle", "stale-thinking", "fresh-idle"])
+        assert rows["stale-idle"]["state"] == "closed"
+        assert rows["stale-thinking"]["state"] == "closed"
+        assert rows["fresh-idle"]["state"] == "idle"
+
+    def test_skips_already_closed(self, backend):
+        backend.register_workstream("already-closed", kind="interactive")
+        backend.update_workstream_state("already-closed", "closed")
+        _force_updated(backend, "already-closed", "2020-01-01T00:00:00")
+
+        closed = backend.bulk_close_stale_orphans(
+            "interactive", cutoff="2024-01-01T00:00:00", exclude_ws_ids=[]
+        )
+
+        assert closed == []
+
+    def test_filters_by_kind(self, backend):
+        backend.register_workstream("interactive-stale", kind="interactive")
+        backend.register_workstream("coord-stale", kind="coordinator")
+        _force_updated(backend, "interactive-stale", "2020-01-01T00:00:00")
+        _force_updated(backend, "coord-stale", "2020-01-01T00:00:00")
+
+        closed = backend.bulk_close_stale_orphans(
+            "interactive", cutoff="2024-01-01T00:00:00", exclude_ws_ids=[]
+        )
+
+        assert closed == ["interactive-stale"]
+        rows = backend.get_workstreams_batch(["interactive-stale", "coord-stale"])
+        assert rows["interactive-stale"]["state"] == "closed"
+        assert rows["coord-stale"]["state"] == "idle"
+
+    def test_excludes_loaded_ws_ids(self, backend):
+        backend.register_workstream("ws-keep", kind="interactive")
+        backend.register_workstream("ws-close", kind="interactive")
+        _force_updated(backend, "ws-keep", "2020-01-01T00:00:00")
+        _force_updated(backend, "ws-close", "2020-01-01T00:00:00")
+
+        closed = backend.bulk_close_stale_orphans(
+            "interactive", cutoff="2024-01-01T00:00:00", exclude_ws_ids=["ws-keep"]
+        )
+
+        assert closed == ["ws-close"]
+        rows = backend.get_workstreams_batch(["ws-keep", "ws-close"])
+        assert rows["ws-keep"]["state"] == "idle"
+        assert rows["ws-close"]["state"] == "closed"
+
+    def test_empty_exclude_list_does_not_break_sql(self, backend):
+        backend.register_workstream("orphan", kind="interactive")
+        _force_updated(backend, "orphan", "2020-01-01T00:00:00")
+
+        closed = backend.bulk_close_stale_orphans(
+            "interactive", cutoff="2024-01-01T00:00:00", exclude_ws_ids=[]
+        )
+
+        assert closed == ["orphan"]
+
+    def test_no_orphans_returns_empty(self, backend):
+        backend.register_workstream("fresh", kind="interactive")
+
+        closed = backend.bulk_close_stale_orphans(
+            "interactive", cutoff="2024-01-01T00:00:00", exclude_ws_ids=[]
+        )
+
+        assert closed == []
+
+    def test_closes_all_non_terminal_states(self, backend):
+        for ws_id, state in [
+            ("o-idle", "idle"),
+            ("o-thinking", "thinking"),
+            ("o-attention", "attention"),
+            ("o-running", "running"),
+        ]:
+            backend.register_workstream(ws_id, kind="interactive")
+            if state != "idle":
+                backend.update_workstream_state(ws_id, state)
+            _force_updated(backend, ws_id, "2020-01-01T00:00:00")
+
+        closed = backend.bulk_close_stale_orphans(
+            "interactive", cutoff="2024-01-01T00:00:00", exclude_ws_ids=[]
+        )
+
+        assert set(closed) == {"o-idle", "o-thinking", "o-attention", "o-running"}
+
+    def test_bumps_updated_on_close(self, backend):
+        stale_updated = "2020-01-01T00:00:00"
+        backend.register_workstream("orphan", kind="interactive")
+        _force_updated(backend, "orphan", stale_updated)
+
+        backend.bulk_close_stale_orphans(
+            "interactive", cutoff="2024-01-01T00:00:00", exclude_ws_ids=[]
+        )
+
+        # ``updated`` must change away from the forced stale value.  Asserting
+        # inequality from the seed (rather than ``> "2024-01-01..."``) keeps
+        # the test independent of wall-clock date.
+        with backend._engine.connect() as conn:
+            row = conn.execute(
+                sa.select(workstreams.c.updated).where(workstreams.c.ws_id == "orphan")
+            ).one()
+        assert row[0] != stale_updated
+
+    def test_protects_rows_owned_by_live_services(self, backend):
+        """Liveness scoping (post-#384 rendezvous-routing world): rows
+        whose ``node_id`` matches a heartbeating service must NOT be
+        reaped, because that owner may legitimately have them loaded on
+        another worker.  Rows whose ``node_id`` matches a dead service
+        ARE eligible — that's how dead-pod orphans get reclaimed in
+        containerized deployments with dynamic hostnames."""
+        backend.register_workstream("dead-node", node_id="dead-pod-x4k2", kind="interactive")
+        backend.register_workstream("alive-node", node_id="alive-pod-y9p3", kind="interactive")
+        _force_updated(backend, "dead-node", "2020-01-01T00:00:00")
+        _force_updated(backend, "alive-node", "2020-01-01T00:00:00")
+
+        closed = backend.bulk_close_stale_orphans(
+            "interactive",
+            cutoff="2024-01-01T00:00:00",
+            exclude_ws_ids=[],
+            live_node_ids=["alive-pod-y9p3"],
+        )
+
+        assert closed == ["dead-node"]
+        rows = backend.get_workstreams_batch(["dead-node", "alive-node"])
+        assert rows["dead-node"]["state"] == "closed"
+        assert rows["alive-node"]["state"] == "idle"
+
+    def test_null_node_id_always_eligible(self, backend):
+        """A row with NULL ``node_id`` has no owner identity — age alone
+        gates the reap.  Belt-and-suspenders against ``NULL NOT IN (...)``
+        evaluating to NULL (not TRUE) and silently protecting orphans
+        forever."""
+        backend.register_workstream("no-owner", node_id=None, kind="interactive")
+        _force_updated(backend, "no-owner", "2020-01-01T00:00:00")
+
+        closed = backend.bulk_close_stale_orphans(
+            "interactive",
+            cutoff="2024-01-01T00:00:00",
+            exclude_ws_ids=[],
+            live_node_ids=["some-other-node"],
+        )
+
+        assert closed == ["no-owner"]
+
+    def test_live_node_ids_none_skips_filter(self, backend):
+        """``live_node_ids=None`` is the single-process / operator-backfill
+        mode — all rows of *kind* are eligible regardless of node_id."""
+        backend.register_workstream("node-a", node_id="node-a", kind="interactive")
+        backend.register_workstream("node-b", node_id="node-b", kind="interactive")
+        _force_updated(backend, "node-a", "2020-01-01T00:00:00")
+        _force_updated(backend, "node-b", "2020-01-01T00:00:00")
+
+        closed = backend.bulk_close_stale_orphans(
+            "interactive", cutoff="2024-01-01T00:00:00", exclude_ws_ids=[]
+        )
+
+        assert set(closed) == {"node-a", "node-b"}
+
+    def test_empty_live_node_ids_treats_all_as_dead(self, backend):
+        """Empty list ``live_node_ids=[]`` means "no nodes alive" — every
+        row's owner is unprotected.  Useful for operator scripts that
+        want to reap regardless of liveness."""
+        backend.register_workstream("any", node_id="node-a", kind="interactive")
+        _force_updated(backend, "any", "2020-01-01T00:00:00")
+
+        closed = backend.bulk_close_stale_orphans(
+            "interactive",
+            cutoff="2024-01-01T00:00:00",
+            exclude_ws_ids=[],
+            live_node_ids=[],
+        )
+
+        assert closed == ["any"]
+
+    def test_combines_live_node_ids_and_exclude_ws_ids(self, backend):
+        """Both filters stack as AND clauses on the UPDATE.  Covers the
+        full 2x2 matrix to catch a future edit that replaces an AND with
+        an OR or drops one of the filters: only the (orphan + dead-node)
+        cell should be reaped."""
+        # All four registered with the same stale ``updated``.
+        for ws_id, node in [
+            ("loaded-alive", "alive-node"),
+            ("loaded-dead", "dead-node"),
+            ("orphan-alive", "alive-node"),
+            ("orphan-dead", "dead-node"),
+        ]:
+            backend.register_workstream(ws_id, node_id=node, kind="interactive")
+            _force_updated(backend, ws_id, "2020-01-01T00:00:00")
+
+        closed = backend.bulk_close_stale_orphans(
+            "interactive",
+            cutoff="2024-01-01T00:00:00",
+            exclude_ws_ids=["loaded-alive", "loaded-dead"],
+            live_node_ids=["alive-node"],
+        )
+
+        # Only orphan-dead is unprotected by both filters.
+        assert closed == ["orphan-dead"]
+        rows = backend.get_workstreams_batch(
+            ["loaded-alive", "loaded-dead", "orphan-alive", "orphan-dead"]
+        )
+        assert rows["loaded-alive"]["state"] == "idle"
+        assert rows["loaded-dead"]["state"] == "idle"
+        assert rows["orphan-alive"]["state"] == "idle"
+        assert rows["orphan-dead"]["state"] == "closed"
+
+
+# -- touch_workstream ----------------------------------------------------------
+
+
+class TestTouchWorkstream:
+    def test_bumps_updated_only(self, backend):
+        """Used by ``open()`` on rehydrate to defend against the orphan
+        reaper clobbering a freshly-loaded row.  Must not change ``state``
+        (the open() path explicitly avoids state writes to dodge a race
+        with concurrent close())."""
+        stale_updated = "2020-01-01T00:00:00"
+        backend.register_workstream("ws-touch", kind="interactive")
+        backend.update_workstream_state("ws-touch", "closed")  # simulate prior close
+        _force_updated(backend, "ws-touch", stale_updated)
+
+        backend.touch_workstream("ws-touch")
+
+        with backend._engine.connect() as conn:
+            row = conn.execute(
+                sa.select(workstreams.c.state, workstreams.c.updated).where(
+                    workstreams.c.ws_id == "ws-touch"
+                )
+            ).one()
+        assert row[0] == "closed", "state must not be modified by touch"
+        # Compare against the forced stale value rather than a fixed calendar
+        # date so the test is independent of wall-clock time.
+        assert row[1] != stale_updated, "updated must be bumped"
+
+    def test_unknown_id_is_noop(self, backend):
+        """Touch on a missing id must not raise — open()'s exception
+        handler is best-effort."""
+        backend.touch_workstream("nonexistent")  # must not raise
+
+
 # -- Lifecycle -----------------------------------------------------------------
 
 

tests/test_webui_content.py

@@ -157,20 +157,17 @@ class TestContentAccumulation:
         assert len(idle_events[0]["content"]) <= _MAX_TURN_CONTENT_CHARS + 1024
 
 
-class TestPendingApprovalDetailGate:
-    """The Shape A SSE plumbing carries ``pending_approval_detail`` on the
-    ``ws_state`` event so the coord tree UI can render inline approve/deny
-    buttons in lockstep with the activity_state transition.  The gate
-    (``if self._pending_approval is not None``) keeps the per-broadcast
-    serializer cost off the common no-approval-pending path — these tests
-    lock both branches down."""
+class TestPendingApprovalDetailNotPiggybacked:
+    """Stage 3 cleanup — ``pending_approval_detail`` is no longer
+    piggybacked on ``ws_state`` events. Approval items now arrive via
+    bulk fetch when the coord tree's reducer sees the
+    ``activity_state="approval"`` transition; verdicts via the explicit
+    ``intent_verdict`` event class; resolution via
+    ``approval_resolved``. These tests lock the no-piggyback contract
+    down so a future regression doesn't silently re-introduce the
+    duplicated path."""
 
     def test_state_broadcast_omits_field_when_no_approval_pending(self):
-        """Common case: no approval pending → field absent from event so the
-        per-broadcast verdict-cache deepcopy in
-        ``serialize_pending_approval_detail`` never runs.  A regression
-        that drops the gate would silently 10x the cost of every state
-        broadcast in the steady state."""
         ui = _make_ui()
         assert ui._pending_approval is None
         ui._broadcast_state("running")
@@ -180,17 +177,12 @@ class TestPendingApprovalDetailGate:
         assert len(running_events) == 1
         assert "pending_approval_detail" not in running_events[0]
 
-    def test_state_broadcast_includes_field_when_approval_pending(self):
-        """When an approval is pending the broadcast must carry the rich
-        payload — the coord tree UI reads it directly to render inline
-        approve/deny buttons.  Without this, a coord browser would have
-        to chase a separate ``cluster/ws/live`` fetch on every
-        activity_state transition (the load-storm pattern Shape A is
-        unwinding)."""
+    def test_state_broadcast_omits_field_even_when_approval_pending(self):
+        """The piggyback is gone: even when ``_pending_approval`` is set,
+        the state broadcast must NOT carry ``pending_approval_detail``.
+        The browser triggers a bulk fetch off the
+        ``activity_state="approval"`` transition to get the items."""
         ui = _make_ui()
-        # Mirror the shape ``pause_for_approval`` writes (session_ui_base
-        # lines 576-580) — items with call_id + header is the minimum
-        # the serializer needs to project.
         ui._pending_approval = {
             "type": "approve_request",
             "items": [
@@ -209,21 +201,9 @@ class TestPendingApprovalDetailGate:
         events = _drain_global()
         attn = [e for e in events if e.get("state") == "attention"]
         assert len(attn) == 1
-        # Field present and structurally sound — the serializer's
-        # full shape is covered by tests/test_session_ui_base.py;
-        # here we only need to confirm the gate fires and the
-        # serializer's output is what lands on the event.
-        assert "pending_approval_detail" in attn[0]
-        detail = attn[0]["pending_approval_detail"]
-        assert detail is not None
-        assert detail.get("items")
-        assert detail["items"][0]["call_id"] == "c1"
+        assert "pending_approval_detail" not in attn[0]
 
-    def test_field_cleared_after_approval_resolves(self):
-        """Once ``_pending_approval`` is cleared, subsequent state
-        broadcasts must drop the field again — without this, the
-        browser would render stale approve/deny buttons until the
-        next bulk-poll TTL window expired."""
+    def test_field_stays_absent_after_approval_resolves(self):
         ui = _make_ui()
         ui._pending_approval = {
             "type": "approve_request",
@@ -231,7 +211,7 @@ class TestPendingApprovalDetailGate:
             "judge_pending": False,
         }
         ui._broadcast_state("attention")
-        _drain_global()  # discard the with-detail event
+        _drain_global()
 
         ui._pending_approval = None
         ui._broadcast_state("running")
@@ -239,3 +219,115 @@ class TestPendingApprovalDetailGate:
         running = [e for e in events if e.get("state") == "running"]
         assert len(running) == 1
         assert "pending_approval_detail" not in running[0]
+
+
+class TestBroadcastIntentVerdict:
+    """Producer-side coverage for ``WebUI._broadcast_intent_verdict``.
+
+    The collector-side test (``test_apply_delta_intent_verdict_*`` in
+    test_console.py) covers consumption; this pins the event shape the
+    producer puts on the global queue. A field rename or missed key
+    here would slip past the consumer test because the consumer reads
+    via ``data.get(...)``.
+    """
+
+    def test_pushes_intent_verdict_event_to_global_queue(self):
+        ui = _make_ui()
+        verdict = {
+            "call_id": "c1",
+            "risk_level": "low",
+            "confidence": 0.92,
+            "recommendation": "approve",
+            "reasoning": "tool reads only",
+        }
+        ui._broadcast_intent_verdict(verdict)
+
+        events = _drain_global()
+        assert len(events) == 1
+        ev = events[0]
+        assert ev["type"] == "intent_verdict"
+        assert ev["ws_id"] == "ws-test"
+        assert ev["verdict"] == verdict
+
+    def test_no_op_when_global_queue_unset(self):
+        WebUI._global_queue = None
+        ui = _make_ui()
+        # Doesn't raise.
+        ui._broadcast_intent_verdict({"call_id": "c1"})
+
+    def test_queue_full_swallowed(self):
+        # Force a tiny queue then fill it so the next put_nowait
+        # raises queue.Full — the broadcast must absorb it without
+        # propagating (matches _broadcast_state's queue.Full handling).
+        WebUI._global_queue = queue.Queue(maxsize=1)
+        WebUI._global_queue.put_nowait({"sentinel": True})
+        ui = _make_ui()
+        # Doesn't raise.
+        ui._broadcast_intent_verdict({"call_id": "c1"})
+
+
+class TestBroadcastApprovalResolved:
+    """Producer-side coverage for ``WebUI._broadcast_approval_resolved``."""
+
+    def test_pushes_approval_resolved_event_to_global_queue(self):
+        ui = _make_ui()
+        ui._broadcast_approval_resolved(True, "lgtm", always=False)
+
+        events = _drain_global()
+        assert len(events) == 1
+        ev = events[0]
+        assert ev["type"] == "approval_resolved"
+        assert ev["ws_id"] == "ws-test"
+        assert ev["approved"] is True
+        assert ev["feedback"] == "lgtm"
+        assert ev["always"] is False
+
+    def test_normalises_none_feedback_to_empty_string(self):
+        ui = _make_ui()
+        ui._broadcast_approval_resolved(False, None)
+
+        events = _drain_global()
+        assert events[0]["feedback"] == ""
+        assert events[0]["approved"] is False
+        assert events[0]["always"] is False
+
+    def test_always_kwarg_propagates(self):
+        ui = _make_ui()
+        ui._broadcast_approval_resolved(True, "ok", always=True)
+        events = _drain_global()
+        assert events[0]["always"] is True
+
+    def test_no_op_when_global_queue_unset(self):
+        WebUI._global_queue = None
+        ui = _make_ui()
+        # Doesn't raise.
+        ui._broadcast_approval_resolved(True, None)
+
+
+class TestBroadcastApproveRequest:
+    """Producer-side coverage for ``WebUI._broadcast_approve_request`` —
+    push path for the initial approval items so a coord parent's tree
+    UI can render the inline approve/deny block immediately without
+    waiting for a bulk-fetch round-trip."""
+
+    def test_pushes_approve_request_event_to_global_queue(self):
+        ui = _make_ui()
+        detail = {
+            "type": "approve_request",
+            "items": [{"call_id": "c1", "header": "tool x"}],
+            "judge_pending": True,
+        }
+        ui._broadcast_approve_request(detail)
+
+        events = _drain_global()
+        assert len(events) == 1
+        ev = events[0]
+        assert ev["type"] == "approve_request"
+        assert ev["ws_id"] == "ws-test"
+        assert ev["detail"] == detail
+
+    def test_no_op_when_global_queue_unset(self):
+        WebUI._global_queue = None
+        ui = _make_ui()
+        # Doesn't raise.
+        ui._broadcast_approve_request({"items": []})

tests/test_workstream_endpoints.py

@@ -899,6 +899,138 @@ class TestHistoryInteractive:
         assert client.get(base, params={"limit": 999}).status_code == 200
 
 
+class TestBuildHistoryReminderPropagation:
+    """``_build_history`` must surface the ``_reminders`` side-channel on
+    each entry so a tab reconnecting via ``/history`` renders the same
+    metacognitive nudge bubble the originating tab saw via the live
+    ``user_reminder`` SSE event.
+    """
+
+    def _session_with_messages(self, messages: list[dict]) -> MagicMock:
+        session = MagicMock()
+        session.messages = messages
+        return session
+
+    def test_reminders_sidechannel_surfaces_on_entry(self):
+        from turnstone.server import _build_history
+
+        session = self._session_with_messages(
+            [
+                {
+                    "role": "user",
+                    "content": "ah no",
+                    "_reminders": [{"type": "correction", "text": "watch out"}],
+                }
+            ]
+        )
+        history = _build_history(session)
+        assert history[0]["content"] == "ah no"
+        assert history[0]["reminders"] == [{"type": "correction", "text": "watch out"}]
+
+    def test_no_reminders_key_when_sidechannel_absent(self):
+        from turnstone.server import _build_history
+
+        session = self._session_with_messages([{"role": "user", "content": "just a message"}])
+        history = _build_history(session)
+        assert "reminders" not in history[0]
+
+    def test_no_reminders_key_when_sidechannel_empty(self):
+        from turnstone.server import _build_history
+
+        session = self._session_with_messages([{"role": "user", "content": "hi", "_reminders": []}])
+        history = _build_history(session)
+        assert "reminders" not in history[0]
+
+    def test_multiple_reminders_preserved_in_order(self):
+        from turnstone.server import _build_history
+
+        session = self._session_with_messages(
+            [
+                {
+                    "role": "user",
+                    "content": "x",
+                    "_reminders": [
+                        {"type": "denial", "text": "FIRST"},
+                        {"type": "correction", "text": "SECOND"},
+                    ],
+                }
+            ]
+        )
+        history = _build_history(session)
+        assert history[0]["reminders"] == [
+            {"type": "denial", "text": "FIRST"},
+            {"type": "correction", "text": "SECOND"},
+        ]
+
+    def test_reminders_coexist_with_attachments(self):
+        from turnstone.server import _build_history
+
+        session = self._session_with_messages(
+            [
+                {
+                    "role": "user",
+                    "content": [
+                        {"type": "text", "text": "look"},
+                        {"type": "image_url", "image_url": {"url": "data:..."}},
+                    ],
+                    "_reminders": [{"type": "correction", "text": "watch"}],
+                }
+            ]
+        )
+        history = _build_history(session)
+        assert history[0]["content"] == "look"
+        assert history[0]["attachments"] == [{"kind": "image", "filename": "", "mime_type": ""}]
+        assert history[0]["reminders"] == [{"type": "correction", "text": "watch"}]
+
+    def test_malformed_reminders_filtered_out(self):
+        """Defensive: a non-dict element in the list (corruption / bug)
+        is dropped rather than crashing the history serialisation."""
+        from turnstone.server import _build_history
+
+        session = self._session_with_messages(
+            [
+                {
+                    "role": "user",
+                    "content": "x",
+                    "_reminders": [
+                        {"type": "correction", "text": "ok"},
+                        "not-a-dict",
+                        {"type": "denial"},  # missing text
+                    ],
+                }
+            ]
+        )
+        history = _build_history(session)
+        # Non-dicts dropped; missing-text fills with empty string.
+        assert history[0]["reminders"] == [
+            {"type": "correction", "text": "ok"},
+            {"type": "denial", "text": ""},
+        ]
+
+    def test_clean_message_passes_through_unchanged(self):
+        """No reminders, plain content — _build_history is a no-op for the
+        reminder field and ``content`` rides through verbatim."""
+        from turnstone.server import _build_history
+
+        session = self._session_with_messages(
+            [{"role": "user", "content": "just a normal message"}]
+        )
+        history = _build_history(session)
+        assert history[0]["content"] == "just a normal message"
+        assert "reminders" not in history[0]
+
+    def test_assistant_content_with_literal_reminder_tag_unchanged(self):
+        """Assistant output may legitimately reference the tag (e.g. when
+        the model is explaining the reminder system itself).  No
+        transformation should ever apply to assistant content."""
+        from turnstone.server import _build_history
+
+        content = "Here is a <system-reminder> tag in assistant output."
+        session = self._session_with_messages([{"role": "assistant", "content": content}])
+        history = _build_history(session)
+        assert history[0]["content"] == content
+
+
 class TestDetailInteractive:
     """Interactive parity for the lifted ``GET /v1/api/workstreams/{ws_id}``.
 

turnstone/__init__.py

@@ -1,3 +1,3 @@
 """turnstone - Multi-node AI orchestration platform with tool use, agent routing, and cluster simulation."""
 
-__version__ = "1.5.1"
+__version__ = "1.5.5"

turnstone/cli.py

@@ -312,6 +312,29 @@ class TerminalUI(SessionUI):
         sys.stdout.write(f"{RED}{message}{RESET}\n")
         sys.stdout.flush()
 
+    def _print_reminder(self, reminders: list[dict[str, str]]) -> None:
+        """Render a metacognitive reminder list as ``[metacognition · type] text``
+        lines in the terminal — the CLI's equivalent of the web UI's
+        yellow themed bubble.  Used by both ``on_user_reminder`` and
+        ``on_tool_reminder``; the rendering is identical because
+        terminal output is anchor-by-flow rather than DOM-by-anchor.
+        """
+        for r in reminders:
+            nt = str(r.get("type", "") or "")
+            text = str(r.get("text", "") or "")
+            label = "metacognition" + (f" · {nt}" if nt else "")
+            sys.stdout.write(f"{YELLOW}[{label}]{RESET} {text}\n")
+        sys.stdout.flush()
+
+    def on_user_reminder(self, reminders: list[dict[str, str]]) -> None:
+        self._print_reminder(reminders)
+
+    def on_tool_reminder(self, reminders: list[dict[str, str]], tool_call_id: str) -> None:
+        # tool_call_id ignored — the CLI anchors by output sequence
+        # (the line lands directly after the tool result that
+        # triggered the batch's reminder).
+        self._print_reminder(reminders)
+
     def on_state_change(self, state: str) -> None:
         pass  # base TerminalUI ignores state changes
 
@@ -1219,7 +1242,7 @@ def main() -> None:
                 )
                 sys.stderr.flush()
 
-    manager._on_state_change = _bg_attention_notify
+    manager.subscribe_to_state(_bg_attention_notify)
 
     # Print banner
     print(f"\n{bold('Chat')} with {cyan(model)}")

turnstone/console/collector.py

@@ -498,7 +498,6 @@ class ClusterCollector:
                         "kind": WorkstreamKind.from_raw(new_w.get("kind")),
                         "parent_ws_id": new_w.get("parent_ws_id"),
                         "activity_state": new_w.get("activity_state", ""),
-                        "pending_approval_detail": new_w.get("pending_approval_detail"),
                     }
                 )
             old_name = old_ws.get("title", "") or old_ws.get("name", "")
@@ -558,18 +557,6 @@ class ClusterCollector:
                         ws["kind"] = data["kind"]
                     if "parent_ws_id" in data:
                         ws["parent_ws_id"] = data["parent_ws_id"]
-                    # ``pending_approval_detail`` overwrites (no
-                    # ``ws.get`` fallback): the node's broadcast gate
-                    # on ``_pending_approval is not None`` means the
-                    # field is absent from ``data`` exactly when no
-                    # approval is pending — falling back to the cached
-                    # value would resurrect a stale detail after the
-                    # approval resolved.  Without this assignment the
-                    # cached ``node.workstreams`` dict served by
-                    # ``get_node_detail`` / ``get_snapshot`` between
-                    # reconciliations would render stale approve/deny
-                    # buttons on closed approvals.
-                    ws["pending_approval_detail"] = data.get("pending_approval_detail")
                     pending_events.append(
                         {
                             "type": "cluster_state",
@@ -581,7 +568,6 @@ class ClusterCollector:
                             "kind": WorkstreamKind.from_raw(ws.get("kind")),
                             "parent_ws_id": ws.get("parent_ws_id"),
                             "activity_state": ws.get("activity_state", ""),
-                            "pending_approval_detail": data.get("pending_approval_detail"),
                         }
                     )
 
@@ -648,6 +634,60 @@ class ClusterCollector:
                     ws["name"] = name
                 pending_events.append({"type": "ws_rename", "ws_id": ws_id, "name": name})
 
+            elif etype == "intent_verdict":
+                # Pure pass-through for LLM judge verdicts. The node's
+                # WebUI._broadcast_intent_verdict pushes onto the
+                # global queue (Stage 3 Step 5); the cluster fan-out
+                # forwards to subscribers (e.g. CoordinatorAdapter,
+                # which dispatches to the parent's coord SSE as
+                # ``child_ws_intent_verdict``).
+                ws_id = data.get("ws_id", "")
+                if ws_id:
+                    pending_events.append(
+                        {
+                            "type": "intent_verdict",
+                            "ws_id": ws_id,
+                            "node_id": node_id,
+                            "verdict": data.get("verdict") or {},
+                        }
+                    )
+
+            elif etype == "approval_resolved":
+                # Pure pass-through for approve/deny resolutions. Pairs
+                # with ``intent_verdict`` above so the parent
+                # coordinator's tree UI can clear the pending-approval
+                # pill the moment the user decides, rather than waiting
+                # for the subsequent state-change piggyback.
+                ws_id = data.get("ws_id", "")
+                if ws_id:
+                    pending_events.append(
+                        {
+                            "type": "approval_resolved",
+                            "ws_id": ws_id,
+                            "node_id": node_id,
+                            "approved": bool(data.get("approved", False)),
+                            "feedback": data.get("feedback", "") or "",
+                            "always": bool(data.get("always", False)),
+                        }
+                    )
+
+            elif etype == "approve_request":
+                # Push path for the initial approval items. Eliminates
+                # the bulk-fetch race that otherwise leaves the coord
+                # tree stuck on a loading placeholder when the bulk
+                # fetch lands in the gap between the state transition
+                # to ATTENTION and ``_pending_approval`` being set.
+                ws_id = data.get("ws_id", "")
+                if ws_id:
+                    pending_events.append(
+                        {
+                            "type": "approve_request",
+                            "ws_id": ws_id,
+                            "node_id": node_id,
+                            "detail": data.get("detail") or {},
+                        }
+                    )
+
             elif etype == "health_changed":
                 # Update the health dict's backend status in-place
                 bstatus = data.get("backend_status", "")
@@ -1217,3 +1257,70 @@ class ClusterCollector:
                 return
             entry["name"] = name
         self._fanout({"type": "ws_rename", "ws_id": ws_id, "name": name})
+
+    def emit_console_ws_intent_verdict(self, ws_id: str, verdict: dict[str, Any]) -> None:
+        """Fan an LLM intent-judge verdict for a console-pseudo-node ws.
+
+        Gives coord-spawned approval flows a first-class cluster-bus
+        event so the parent's tree UI can render the risk pill +
+        verdict result without polling.
+        ``CoordinatorAdapter._dispatch_child_event`` re-emits these as
+        ``child_ws_intent_verdict`` for the parent coordinator's SSE
+        stream. The dispatch path filters by registry membership;
+        downstream subscribers tolerate verdicts for ws_ids they don't
+        own (silently drop), so we skip the membership pre-check that
+        would otherwise add a lock acquisition per emit on a path
+        that fires once per tool-call during heuristic+LLM judging.
+        """
+        self._fanout(
+            {
+                "type": "intent_verdict",
+                "ws_id": ws_id,
+                "node_id": self.CONSOLE_PSEUDO_NODE_ID,
+                "verdict": verdict,
+            }
+        )
+
+    def emit_console_ws_approval_resolved(
+        self,
+        ws_id: str,
+        *,
+        approved: bool,
+        feedback: str = "",
+        always: bool = False,
+    ) -> None:
+        """Fan an ``approval_resolved`` decision for a console-pseudo-node ws.
+
+        Paired with :meth:`emit_console_ws_intent_verdict` so the
+        coord tree UI clears the pending-approval pill in lockstep
+        with the actual decision. Same lock-skip rationale as the
+        intent-verdict emit above.
+        """
+        self._fanout(
+            {
+                "type": "approval_resolved",
+                "ws_id": ws_id,
+                "node_id": self.CONSOLE_PSEUDO_NODE_ID,
+                "approved": approved,
+                "feedback": feedback,
+                "always": always,
+            }
+        )
+
+    def emit_console_ws_approve_request(self, ws_id: str, detail: dict[str, Any]) -> None:
+        """Fan an ``approve_request`` payload for a console-pseudo-node ws.
+
+        Push path for the initial approval items so a coord parent's
+        tree UI can render the inline approve/deny block immediately
+        without a bulk-fetch round-trip. ``CoordinatorAdapter._dispatch_child_event``
+        re-emits as ``child_ws_approve_request`` for the parent
+        coordinator's SSE stream.
+        """
+        self._fanout(
+            {
+                "type": "approve_request",
+                "ws_id": ws_id,
+                "node_id": self.CONSOLE_PSEUDO_NODE_ID,
+                "detail": detail,
+            }
+        )

turnstone/console/coordinator_adapter.py

@@ -15,17 +15,17 @@ for the storage-seeded children rebuild.
 
 from __future__ import annotations
 
-import queue
-import threading
 from typing import TYPE_CHECKING, Any
 
 from turnstone.core import session_worker
 from turnstone.core.adapters._ui_cleanup import cleanup_session_ui
+from turnstone.core.child_source import ClusterChildSource
+from turnstone.core.children_registry import ChildrenRegistry
 from turnstone.core.log import get_logger
 from turnstone.core.workstream import Workstream, WorkstreamKind, WorkstreamState
 
 if TYPE_CHECKING:
-    from collections.abc import Callable, Iterable
+    from collections.abc import Callable
 
     from turnstone.console.collector import ClusterCollector
     from turnstone.console.coordinator_ui import ConsoleCoordinatorUI
@@ -56,38 +56,25 @@ class CoordinatorAdapter:
         # the manager to the adapter's ``__init__`` — break the cycle
         # with a setter called from console startup.
         self._manager: SessionManager | None = None
-        # Per-coordinator known-child ws_id set. Populated lazily on
-        # create/open from storage and updated live as the cluster fan-out
-        # thread sees ws_created events with matching parent_ws_id.
-        # Closed / deleted children stay in the registry so the tree UI
-        # can keep rendering them grayed out; the authoritative render
-        # path reads storage for state. Bounded by eventual coordinator
-        # close/eviction.
-        self._children: dict[str, set[str]] = {}
-        # Reverse index for O(1) child → coord lookup on every cluster
-        # event. Without this, every cluster event incurs a linear scan
-        # over every coordinator's child set while holding the fan-out
-        # lock — a hot-path tax that scales with both active coordinators
-        # and their retained-history depth.
-        self._child_to_coord: dict[str, str] = {}
-        self._children_lock = threading.Lock()
-        # Cluster-event fan-out: subscribes to the ClusterCollector's
-        # listener channel, filters by known child ws_ids, and re-emits
-        # child_ws_* events on the matching coordinator's UI. Configured
-        # lazily via ``start_child_event_fanout(collector)`` from the
-        # console lifespan once both the manager and collector exist.
-        self._collector_queue: queue.Queue[dict[str, Any]] | None = None
-        self._fanout_thread: threading.Thread | None = None
-        self._fanout_stop = threading.Event()
-        # Coord-ws-id → UI map for the fan-out dispatch path. Read
-        # and written under ``self._children_lock`` alongside the
-        # forward/reverse child maps. (Previously the value was
-        # ``(user_id, ui)`` with a copy-on-write dict swap so the
-        # dispatch could read it lock-free — but _dispatch_child_event
-        # already re-validates the parent under _children_lock anyway,
-        # so the lock-free snapshot was premature. The user_id half is
-        # also dead after a46dab1 dropped row-level ownership gates.)
-        self._active_coords: dict[str, Any] = {}
+        # Children registry — universal parent → children + reverse
+        # lookup primitive. Lifted from inline data on this adapter to
+        # ``turnstone.core.children_registry.ChildrenRegistry`` (Stage 3
+        # Step 1) so the same primitive can serve interactive
+        # workstreams when they gain spawn capability. The dispatch
+        # path (`_dispatch_child_event`) calls into the registry
+        # atomically; everything else delegates through the legacy
+        # method names which still exist as thin shims for the
+        # cluster-routing + cleanup callers.
+        self._registry = ChildrenRegistry()
+        # Cross-node child events arrive via ``ClusterChildSource``
+        # (Stage 3 Step 2): a strategy that subscribes to the
+        # collector's listener channel and runs a daemon thread that
+        # drains the queue, pushing each event to the sink. The sink
+        # is :meth:`_dispatch_child_event` so the existing translation
+        # logic (cluster_state → child_ws_state, etc.) stays in one
+        # place. Constructed lazily by ``start_child_event_fanout`` so
+        # the collector reference is available.
+        self._child_source: ClusterChildSource | None = None
 
     def attach(self, manager: SessionManager) -> None:
         """Late-bind the owning :class:`SessionManager`.
@@ -109,7 +96,7 @@ class CoordinatorAdapter:
         # needs the empty forward/presence entries so
         # ``_dispatch_child_event`` recognises this coordinator when
         # its first child is spawned.
-        self._install_coord_registry(ws)
+        self._registry.install(ws.id, ws.ui)
         self._fanout_console_ws_created(ws)
 
     def emit_rehydrated(self, ws: Workstream) -> None:
@@ -117,21 +104,10 @@ class CoordinatorAdapter:
         # it from storage after the registry seed so a ``ws_created``
         # for an already-spawned child that fires mid-rebuild merges
         # cleanly.
-        self._install_coord_registry(ws)
+        self._registry.install(ws.id, ws.ui)
         self._rebuild_children_registry(ws.id)
         self._fanout_console_ws_created(ws)
 
-    def _install_coord_registry(self, ws: Workstream) -> None:
-        """Seed the children registry + presence map for ``ws``.
-
-        Shared by ``emit_created`` and ``emit_rehydrated`` — the
-        difference between the two is purely whether we then rebuild
-        from storage.
-        """
-        with self._children_lock:
-            self._children.setdefault(ws.id, set())
-            self._active_coords[ws.id] = ws.ui
-
     def _fanout_console_ws_created(self, ws: Workstream) -> None:
         try:
             self._collector.emit_console_ws_created(
@@ -197,14 +173,11 @@ class CoordinatorAdapter:
         # toast only fire for real-node (interactive) ws_closed events.
         del reason, name
         # Drop the coordinator's children-registry entries AND its
-        # presence slot. Mirrors the eviction/close paths from the old
-        # CoordinatorManager (which did the same under _children_lock
-        # + _lock respectively). A plain _children.pop without clearing
-        # the reverse index would leak every evicted coordinator's
-        # child→parent pointers forever.
-        with self._children_lock:
-            self._pop_coord_registry_locked(ws_id)
-            self._active_coords.pop(ws_id, None)
+        # presence slot. A plain pop without clearing the reverse
+        # index would leak every evicted coordinator's child→parent
+        # pointers forever — :meth:`ChildrenRegistry.uninstall`
+        # handles forward set + reverse entries + presence atomically.
+        self._registry.uninstall(ws_id)
         try:
             self._collector.emit_console_ws_closed(ws_id)
         except Exception:
@@ -356,25 +329,6 @@ class CoordinatorAdapter:
     # Children registry
     # ------------------------------------------------------------------
 
-    def _merge_child_ids_locked(self, coord_ws_id: str, child_ids: Iterable[str]) -> None:
-        """Merge ``child_ids`` into ``coord_ws_id``'s forward + reverse maps.
-
-        Caller MUST hold ``self._children_lock``. Idempotent — re-adding
-        an existing child is a no-op (the reverse-index pointer is
-        already correct). Empty / falsy entries in ``child_ids`` are
-        skipped.
-
-        Sole write-path for bulk registry updates so
-        ``_rebuild_children_registry`` (storage-seeded) and
-        ``_prime_children_from_snapshot`` (collector-seeded) agree on
-        ordering and reverse-index invariants.
-        """
-        existing = self._children.setdefault(coord_ws_id, set())
-        for cid in child_ids:
-            if cid and cid not in existing:
-                existing.add(cid)
-                self._child_to_coord[cid] = coord_ws_id
-
     def _rebuild_children_registry(self, coord_ws_id: str) -> None:
         """Populate ``self._children[coord_ws_id]`` from storage.
 
@@ -445,174 +399,88 @@ class CoordinatorAdapter:
             if not child_id:
                 continue
             child_ids.append(child_id)
-        with self._children_lock:
-            self._merge_child_ids_locked(coord_ws_id, child_ids)
-
-    def _coord_for_child(self, child_ws_id: str) -> str | None:
-        """Reverse-lookup: which coordinator owns this child ws_id?
-
-        O(1) via the ``_child_to_coord`` reverse index. Cluster events
-        fire on every token tick across the cluster; a linear scan here
-        turned into a hot-path tax as the retained-history set grew.
-        """
-        with self._children_lock:
-            return self._child_to_coord.get(child_ws_id)
+        self._registry.merge_children(coord_ws_id, child_ids)
 
     def children_snapshot(self, coord_ws_id: str) -> list[str]:
         """Return a snapshot of the coordinator's direct child ws_ids.
 
-        Used by ``stop_cascade`` to iterate children without holding the
-        registry lock during the per-child HTTP dispatch. A mutation
-        racing with the snapshot (child spawned mid-cascade) either
-        lands before the snapshot and gets cancelled, or lands after
-        and is out of scope for this batch — both outcomes are safe.
-        Returns an empty list for unknown coordinators.
+        Used by ``stop_cascade`` to iterate children without holding
+        the registry lock during the per-child HTTP dispatch. A
+        mutation racing with the snapshot (child spawned mid-cascade)
+        either lands before (cancelled) or after (out of scope for
+        this batch) — both safe. Returns an empty list for unknown
+        coordinators.
         """
-        with self._children_lock:
-            child_set = self._children.get(coord_ws_id)
-            return list(child_set) if child_set else []
-
-    def _pop_coord_registry_locked(self, coord_ws_id: str) -> None:
-        """Remove a coordinator's forward set + reverse-index entries.
-
-        Caller MUST hold ``self._children_lock``. Used by close /
-        eviction paths so stale coordinators don't leak registry
-        entries. No-op if the coordinator is unknown.
-        """
-        child_set = self._children.pop(coord_ws_id, None)
-        if child_set is None:
-            return
-        for cid in child_set:
-            # Defensive: only clear the reverse entry if it still points
-            # at THIS coordinator. If a child has since been reassigned
-            # (unusual but possible on schema changes), we don't want to
-            # orphan the new owner's entry.
-            if self._child_to_coord.get(cid) == coord_ws_id:
-                self._child_to_coord.pop(cid, None)
+        return self._registry.children_of(coord_ws_id)
 
     # ------------------------------------------------------------------
     # Cluster-event fan-out thread
     # ------------------------------------------------------------------
 
     def start_child_event_fanout(self, collector: ClusterCollector) -> None:
-        """Subscribe to cluster events and start the filter + re-emit thread.
+        """Subscribe to cluster events via :class:`ClusterChildSource`.
 
-        Idempotent — calling twice is a no-op (already-started fan-out
-        thread stays). Called once from the console lifespan after both
-        the collector and the session manager are constructed.
+        Idempotent — already-started ChildSource stays. Called once
+        from the console lifespan after both the collector and the
+        session manager are constructed.
         """
-        if self._fanout_thread is not None and self._fanout_thread.is_alive():
+        if self._child_source is not None:
             return
         self._collector = collector
-        self._collector_queue = queue.Queue(maxsize=1000)
-        # Ensure the "console" pseudo-node exists in the snapshot map so
-        # emit_console_ws_* calls from create / close / open land on a
-        # real node entry the snapshot will surface.
+        # Coord-specific transport setup: the "console" pseudo-node
+        # must exist in the snapshot map BEFORE any
+        # ``emit_console_ws_*`` calls (and before the snapshot is
+        # taken inside ``ChildSource.start``) so those emits land on
+        # a real node entry the snapshot surfaces.
         collector.ensure_console_pseudo_node()
-        # Register with the collector — use the existing listener channel
-        # the browser SSE fan-out uses; the collector treats our queue as
-        # just another subscriber.
-        snapshot = collector.get_snapshot_and_register(self._collector_queue)
-        # Prime the child registry from the snapshot so a coordinator
-        # that opens right after a console restart sees already-live
-        # children without waiting for the next ``ws_state`` tick to
-        # discover them via the fan-out path.
-        self._prime_children_from_snapshot(snapshot)
-        # Seed the pseudo-node with any coordinators already loaded in
-        # memory when the collector binds. Prevents a race where early
-        # creates happened before the collector was wired up and their
-        # rows never showed on the snapshot.
-        mgr = self._manager
-        if mgr is not None:
-            for ws in mgr.list_all():
-                try:
-                    collector.emit_console_ws_created(
-                        ws.id,
-                        name=ws.name,
-                        user_id=ws.user_id or "",
-                        kind=WorkstreamKind.COORDINATOR.value,
-                        state=ws.state.value,
-                        parent_ws_id=None,
-                    )
-                except Exception:
-                    log.debug(
-                        "coord_adapter.collector_seed_failed ws=%s",
-                        ws.id[:8],
-                        exc_info=True,
-                    )
-        self._fanout_stop.clear()
-        t = threading.Thread(
-            target=self._fanout_loop,
-            name="coord-adapter-child-fanout",
-            daemon=True,
-        )
-        self._fanout_thread = t
-        t.start()
-
-    def _prime_children_from_snapshot(self, snapshot: dict[str, Any]) -> None:
-        """Populate ``_children`` + ``_child_to_coord`` from a collector snapshot.
-
-        The snapshot's per-node workstreams carry ``parent_ws_id``. For
-        every workstream whose parent is an in-memory coordinator,
-        record the child so the fan-out filter sees it immediately.
-        """
-        nodes = snapshot.get("nodes", []) if isinstance(snapshot, dict) else []
-        if not nodes:
-            return
         mgr = self._manager
         if mgr is None:
             raise RuntimeError(
                 "CoordinatorAdapter: manager not attached — call attach(mgr) after construction"
             )
-        by_parent: dict[str, list[str]] = {}
-        known = {ws.id for ws in mgr.list_all()}
-        for node in nodes:
-            for entry in node.get("workstreams", []) or []:
-                parent = entry.get("parent_ws_id") or ""
-                child_id = entry.get("id") or ""
-                if not parent or not child_id or parent not in known:
-                    continue
-                by_parent.setdefault(parent, []).append(child_id)
-        if not by_parent:
-            return
-        with self._children_lock:
-            for parent, kids in by_parent.items():
-                self._merge_child_ids_locked(parent, kids)
+        # Build + start the strategy. The sink is
+        # :meth:`_dispatch_child_event` so cluster events flow through
+        # the same translation path that synthesises ``child_ws_*``
+        # payloads for the parent's UI.
+        source = ClusterChildSource(
+            collector=collector,
+            registry=self._registry,
+            parents_provider=lambda: [ws.id for ws in mgr.list_all()],
+        )
+        source.start(sink=self._dispatch_child_event)
+        self._child_source = source
+        # Seed the pseudo-node with any coordinators already loaded in
+        # memory when the collector binds. Prevents a race where early
+        # creates happened before the collector was wired up and their
+        # rows never showed on the snapshot. (Coord-specific — interactive
+        # has no analogous pseudo-node.)
+        for ws in mgr.list_all():
+            try:
+                collector.emit_console_ws_created(
+                    ws.id,
+                    name=ws.name,
+                    user_id=ws.user_id or "",
+                    kind=WorkstreamKind.COORDINATOR.value,
+                    state=ws.state.value,
+                    parent_ws_id=None,
+                )
+            except Exception:
+                log.debug(
+                    "coord_adapter.collector_seed_failed ws=%s",
+                    ws.id[:8],
+                    exc_info=True,
+                )
 
     def shutdown(self) -> None:
-        """Stop the fan-out thread and unregister from the collector.
+        """Stop the ChildSource and unregister from the collector.
 
         Safe to call multiple times; idempotent. Invoked from the
         console lifespan teardown so SSE listener queues don't leak.
         """
-        self._fanout_stop.set()
-        t = self._fanout_thread
-        q = self._collector_queue
-        coll = self._collector
-        self._fanout_thread = None
-        self._collector_queue = None
-        if coll is not None and q is not None:
-            try:
-                coll.unregister_listener(q)
-            except Exception:
-                log.debug("coord_adapter.unregister_listener_failed", exc_info=True)
-        if t is not None:
-            t.join(timeout=2.0)
-
-    def _fanout_loop(self) -> None:
-        """Drain collector events, filter by known children, dispatch."""
-        q = self._collector_queue
-        if q is None:
-            return
-        while not self._fanout_stop.is_set():
-            try:
-                event = q.get(timeout=1.0)
-            except queue.Empty:
-                continue
-            try:
-                self._dispatch_child_event(event)
-            except Exception:
-                log.debug("coord_adapter.fanout.dispatch_failed", exc_info=True)
+        src = self._child_source
+        self._child_source = None
+        if src is not None:
+            src.shutdown()
 
     def _dispatch_child_event(self, event: dict[str, Any]) -> None:
         """Match a cluster event to a coordinator and re-emit on its UI.
@@ -622,10 +490,12 @@ class CoordinatorAdapter:
         - ``ws_created`` with ``parent_ws_id`` matching an in-memory
           coordinator → add to registry + re-emit as
           ``child_ws_created``.
-        - ``cluster_state`` / ``ws_closed`` / ``ws_rename`` whose
-          ``ws_id`` is in any coordinator's known-children registry →
-          re-emit as ``child_ws_state`` / ``child_ws_closed`` /
-          ``child_ws_rename``.
+        - ``cluster_state`` / ``ws_closed`` / ``ws_rename`` /
+          ``intent_verdict`` / ``approval_resolved`` whose ``ws_id``
+          is in any coordinator's known-children registry → re-emit as
+          ``child_ws_state`` / ``child_ws_closed`` /
+          ``child_ws_rename`` / ``child_ws_intent_verdict`` /
+          ``child_ws_approval_resolved``.
 
         Events for ws_ids we don't own silently drop — the filter lives
         on the server so each coordinator's SSE stream stays small.
@@ -639,23 +509,17 @@ class CoordinatorAdapter:
             parent = event.get("parent_ws_id") or ""
             if not parent:
                 return
-            # Presence check + registry mutation under the same lock:
-            # a concurrent close()/eviction can pop the entry between
-            # the check and the mutation, after which a bare setdefault
-            # would resurrect the entry — leaking the registry key and
-            # enqueuing onto the closed coordinator's UI. Trusted-team
-            # posture (#400 / a46dab1) means no per-event tenant gate
-            # here; scope-level auth at the SSE endpoint is the only
-            # boundary.
-            with self._children_lock:
-                coord_ui = self._active_coords.get(parent)
-                if coord_ui is None:
-                    return
-                existing = self._children.setdefault(parent, set())
-                if ws_id in existing:
-                    return
-                existing.add(ws_id)
-                self._child_to_coord[ws_id] = parent
+            # Atomic check-and-route under the registry's lock: a
+            # concurrent close()/eviction can pop the parent's entry
+            # between the presence check and the mutation, so the two
+            # must happen together. ``add_child`` returns the parent's
+            # UI on success or None on (a) parent not installed, or
+            # (b) duplicate child. Trusted-team posture (#400 / a46dab1)
+            # means no per-event tenant gate here; scope-level auth at
+            # the SSE endpoint is the only boundary.
+            coord_ui = self._registry.add_child(parent, ws_id)
+            if coord_ui is None:
+                return
             payload = {
                 "type": "child_ws_created",
                 "ws_id": ws_id,
@@ -668,8 +532,15 @@ class CoordinatorAdapter:
             _enqueue_on_ui(coord_ui, parent, payload)
             return
 
-        if etype in ("cluster_state", "ws_closed", "ws_rename"):
-            coord_id = self._coord_for_child(ws_id)
+        if etype in (
+            "cluster_state",
+            "ws_closed",
+            "ws_rename",
+            "intent_verdict",
+            "approval_resolved",
+            "approve_request",
+        ):
+            coord_id = self._registry.parent_for(ws_id)
             if coord_id is None:
                 return
             mgr = self._manager
@@ -684,14 +555,13 @@ class CoordinatorAdapter:
                     "state": event.get("state", ""),
                     "tokens": event.get("tokens", 0),
                     "node_id": event.get("node_id", ""),
-                    # activity_state lets the JS detect approval-state
-                    # transitions; pending_approval_detail rides on
-                    # the same event so the browser can mutate
-                    # liveBadgeCache directly and render inline
-                    # approve/deny buttons in lockstep with the
-                    # transition, no separate dashboard refetch.
+                    # ``activity_state`` lets the JS detect approval
+                    # transitions and trigger a bulk fetch for the
+                    # initial detail. The detail itself no longer
+                    # piggybacks here (Stage 3 cleanup) — verdicts
+                    # arrive via the explicit ``intent_verdict`` event
+                    # class and resolution via ``approval_resolved``.
                     "activity_state": event.get("activity_state", ""),
-                    "pending_approval_detail": event.get("pending_approval_detail"),
                 }
             elif etype == "ws_closed":
                 child_event = {
@@ -700,13 +570,52 @@ class CoordinatorAdapter:
                     "parent_ws_id": coord_id,
                     "reason": event.get("reason", ""),
                 }
-            else:  # ws_rename
+            elif etype == "ws_rename":
                 child_event = {
                     "type": "child_ws_rename",
                     "child_ws_id": ws_id,
                     "parent_ws_id": coord_id,
                     "name": event.get("name", ""),
                 }
+            elif etype == "intent_verdict":
+                # Per-coord re-emit of an explicit verdict event so
+                # the tree UI can render the risk pill + verdict
+                # result without polling. The corresponding
+                # ``cluster_state`` event no longer carries the
+                # detail (the piggyback was removed end-to-end);
+                # the bulk fetch on initial approval entry plus this
+                # explicit event class are the only carriers.
+                child_event = {
+                    "type": "child_ws_intent_verdict",
+                    "child_ws_id": ws_id,
+                    "parent_ws_id": coord_id,
+                    "node_id": event.get("node_id", ""),
+                    "verdict": event.get("verdict") or {},
+                }
+            elif etype == "approval_resolved":
+                child_event = {
+                    "type": "child_ws_approval_resolved",
+                    "child_ws_id": ws_id,
+                    "parent_ws_id": coord_id,
+                    "node_id": event.get("node_id", ""),
+                    "approved": bool(event.get("approved", False)),
+                    "feedback": event.get("feedback", "") or "",
+                    "always": bool(event.get("always", False)),
+                }
+            else:  # approve_request
+                # Push path for the initial approval items —
+                # eliminates the bulk-fetch race that previously left
+                # the coord row stuck on a loading placeholder when
+                # the bulk fetch landed in the gap between the state
+                # transition to ATTENTION and ``_pending_approval``
+                # being set inside ``approve_tools``.
+                child_event = {
+                    "type": "child_ws_approve_request",
+                    "child_ws_id": ws_id,
+                    "parent_ws_id": coord_id,
+                    "node_id": event.get("node_id", ""),
+                    "detail": event.get("detail") or {},
+                }
             _enqueue_on_ui(owning_ws.ui, coord_id, child_event)
 
 

turnstone/console/coordinator_ui.py

@@ -181,6 +181,81 @@ class ConsoleCoordinatorUI(SessionUIBase):
         with self._ws_lock:
             self._last_broadcast_activity = current
 
+    def _broadcast_intent_verdict(self, verdict: dict[str, Any]) -> None:
+        """Fan an LLM intent-judge verdict to the cluster collector.
+
+        Stage 3 Step 5 — overrides the no-op base hook so a coord
+        workstream that produces its own verdict (rare — coord agents
+        don't typically run the LLM judge) gets a first-class
+        cluster-bus event for the parent's tree UI. The far more
+        common path is a CHILD workstream firing its verdict on a
+        real node; that path goes through ``WebUI._broadcast_intent_verdict``
+        → global SSE → collector ``_apply_delta``.
+        """
+        collector = ConsoleCoordinatorUI._collector
+        if collector is None:
+            return
+        try:
+            collector.emit_console_ws_intent_verdict(self.ws_id, verdict)
+        except Exception:
+            log.debug(
+                "coord_ui.intent_verdict_fanout_failed ws=%s",
+                self.ws_id,
+                exc_info=True,
+            )
+
+    def _broadcast_approval_resolved(
+        self,
+        approved: bool,
+        feedback: str | None = None,
+        *,
+        always: bool = False,
+    ) -> None:
+        """Fan an ``approval_resolved`` decision to the cluster collector.
+
+        Stage 3 Step 5 — paired with :meth:`_broadcast_intent_verdict`.
+        Same rationale: coord-direct approvals are rare; the typical
+        path is a child workstream resolving on its node, with that
+        node's WebUI broadcasting through the global queue.
+        """
+        collector = ConsoleCoordinatorUI._collector
+        if collector is None:
+            return
+        try:
+            collector.emit_console_ws_approval_resolved(
+                self.ws_id,
+                approved=approved,
+                feedback=feedback or "",
+                always=always,
+            )
+        except Exception:
+            log.debug(
+                "coord_ui.approval_resolved_fanout_failed ws=%s",
+                self.ws_id,
+                exc_info=True,
+            )
+
+    def _broadcast_approve_request(self, detail: dict[str, Any]) -> None:
+        """Fan an ``approve_request`` payload to the cluster collector.
+
+        Push path for the initial approval items. Same rationale as
+        the other two broadcast hooks: coord-self approvals are rare
+        (the LLM judge isn't wired on the console coord today), but
+        the override exists for symmetry and lights up the same path
+        a future coord-self gate would use.
+        """
+        collector = ConsoleCoordinatorUI._collector
+        if collector is None:
+            return
+        try:
+            collector.emit_console_ws_approve_request(self.ws_id, detail)
+        except Exception:
+            log.debug(
+                "coord_ui.approve_request_fanout_failed ws=%s",
+                self.ws_id,
+                exc_info=True,
+            )
+
     def on_state_change(self, state: str) -> None:
         # Flow state transitions through the unified SessionManager so
         # the storage write + adapter emit_state fan-out stay in lockstep

turnstone/console/server.py

@@ -23,6 +23,7 @@ import queue
 import re
 import secrets
 import textwrap
+import threading
 import time
 import urllib.parse
 from concurrent.futures import ThreadPoolExecutor
@@ -89,6 +90,7 @@ if TYPE_CHECKING:
     from starlette.requests import Request
 
     from turnstone.core.session import ChatSession
+    from turnstone.core.session_manager import SessionManager
     from turnstone.core.storage._protocol import StorageBackend
 
 log = logging.getLogger("turnstone.console.server")
@@ -844,8 +846,20 @@ async def _fetch_live_block(
             live = {k: entry.get(k) for k in _CLUSTER_WS_LIVE_KEYS if k in entry}
             # Derived field — kept in lockstep with
             # _coordinator_live_snapshot so both origins produce the
-            # same keys.
-            live["pending_approval"] = live.get("activity_state") == "approval"
+            # same keys. ``state="attention"`` is the canonical signal;
+            # ``activity_state="approval"`` is set inside approve_tools
+            # AFTER the state transition fires, so a bulk fetch that
+            # races with that window can see state=attention and
+            # activity_state="" simultaneously. A non-null
+            # ``pending_approval_detail`` is also a definitive signal
+            # (the serializer only emits non-None when ``_pending_approval``
+            # is set on the UI). Any of the three flips this true; the
+            # frontend reducer mirrors the same disjunction.
+            live["pending_approval"] = (
+                live.get("activity_state") == "approval"
+                or entry.get("state") == "attention"
+                or live.get("pending_approval_detail") is not None
+            )
             return live
     return None
 
@@ -3687,6 +3701,50 @@ async def _verify_collector_service_scope(app: Starlette, client: httpx.AsyncCli
     )
 
 
+def _coord_idle_cleanup_thread(
+    mgr: SessionManager,
+    timeout_sec: float,
+    stop_event: threading.Event | None = None,
+) -> None:
+    """Periodically reap idle + DB-orphan coordinator workstreams.
+
+    Mirrors the regular server's ``_idle_cleanup_thread`` (turnstone/server.py)
+    but skips the rate-limiter / global-queue arms — the console doesn't have
+    those.  ``mgr.close_idle`` does the work: closes loaded IDLE rows AND
+    bulk-closes DB rows of this kind whose ``updated`` is past the cutoff
+    and which aren't currently loaded.  The latter pass catches coords left
+    behind by prior console process incarnations.
+
+    Runs an initial sweep BEFORE the first sleep so cold-start orphans are
+    reaped immediately rather than waiting one ``check_every`` interval (~30
+    min on default 2h timeout).  This intentionally diverges from the regular
+    server pattern, which has no initial sweep — the regular server runs
+    inside a normal request-handling lifecycle, the console-side coord pool
+    is a small fixed-size cache where orphans dominate the row count after
+    a cold boot.
+
+    ``stop_event`` is for tests — when set, the thread exits cleanly after
+    the next loop check.  Production callers pass ``None`` (the daemon is
+    process-lifetime).
+    """
+    check_every = min(300.0, timeout_sec / 4)
+    # Initial sweep — runs once before entering the sleep loop.
+    try:
+        mgr.close_idle(timeout_sec)
+    except Exception:
+        log.debug("console.coord_idle_cleanup_initial_failed", exc_info=True)
+    while True:
+        if stop_event is not None and stop_event.is_set():
+            return
+        time.sleep(check_every)
+        if stop_event is not None and stop_event.is_set():
+            return
+        try:
+            mgr.close_idle(timeout_sec)
+        except Exception:
+            log.debug("console.coord_idle_cleanup_failed", exc_info=True)
+
+
 @asynccontextmanager
 async def _lifespan(app: Starlette) -> AsyncGenerator[None, None]:
     # Create async HTTP clients for proxy routes.  Auth headers are NOT baked
@@ -3992,6 +4050,27 @@ async def _lifespan(app: Starlette) -> AsyncGenerator[None, None]:
                     coord_adapter.start_child_event_fanout(app.state.collector)
                 except Exception:
                     log.warning("console.coordinator_child_fanout_init_failed", exc_info=True)
+                # Idle cleanup: closes loaded-but-stale coords AND DB orphans
+                # left behind by prior console processes.  The thread runs an
+                # initial sweep on entry (no synchronous lifespan call needed —
+                # see ``_coord_idle_cleanup_thread``) so cold-start cleanup
+                # doesn't block startup.  Reuses the regular-server
+                # ``server.workstream_idle_timeout`` setting — the same cadence
+                # makes sense for both kinds and avoids a redundant config knob.
+                try:
+                    idle_minutes = int(config_store.get("server.workstream_idle_timeout"))
+                except Exception:
+                    idle_minutes = 0
+                if idle_minutes > 0:
+                    timeout_sec = float(idle_minutes * 60)
+                    cleanup_thread = threading.Thread(
+                        target=_coord_idle_cleanup_thread,
+                        args=(coord_mgr, timeout_sec),
+                        name="coord-idle-cleanup",
+                        daemon=True,
+                    )
+                    cleanup_thread.start()
+                    app.state.coord_idle_cleanup_thread = cleanup_thread
                 log.info(
                     "console.coordinator_mgr_ready max_active=%s",
                     config_store.get("coordinator.max_active"),

turnstone/console/static/app.js

@@ -1851,6 +1851,16 @@ var _savedCoordsRetry = false;
 
 function loadSavedCoordinators() {
   if (!_hasCoordPermission()) return;
+  // Freeze the list while the user is multi-selecting — re-rendering
+  // mid-mode would shuffle the visible page out from under them.  The
+  // delete-mode wrapper drains the retry flag on cancel/onClose.
+  if (
+    typeof _coordDeleteController !== "undefined" &&
+    _coordDeleteController.inMode()
+  ) {
+    _savedCoordsRetry = true;
+    return;
+  }
   if (_savedCoordsInFlight) {
     _savedCoordsRetry = true;
     return;
@@ -1861,6 +1871,16 @@ function loadSavedCoordinators() {
       return r.ok ? r.json() : { workstreams: [] };
     })
     .then(function (data) {
+      // Belt-and-braces: if the user entered delete mode while this
+      // fetch was already in flight, defer the render — re-rendering
+      // mid-selection would shuffle visible cards and reshape selections.
+      if (
+        typeof _coordDeleteController !== "undefined" &&
+        _coordDeleteController.inMode()
+      ) {
+        _savedCoordsRetry = true;
+        return;
+      }
       renderSavedCoordinators(data.workstreams || []);
     })
     .catch(function () {
@@ -1878,7 +1898,52 @@ function loadSavedCoordinators() {
     });
 }
 
+// Saved Coordinators: paginated card list + multi-select delete.
+// The shared controller (createSavedCardsController in /shared/cards.js)
+// owns mode state, checkbox decoration, the toolbar, and the modal.
+// Pagination caps Select-All fan-out at COORD_PAGE_SIZE — the controller
+// only ever sees the visible page, so a confirm-all batch is bounded to
+// COORD_PAGE_SIZE parallel POSTs against the routing proxy.
+var COORD_PAGE_SIZE = 24;
+var _coordPage = 0;
+var _coordSavedItems = [];
+var _coordDeleteController = createSavedCardsController({
+  idPrefix: "coord-delete",
+  buttonId: "coord-delete-btn",
+  noun: "coordinator",
+  activateLabel: function (s) {
+    return "Resume coordinator: " + (s.alias || s.title || s.name || s.ws_id);
+  },
+  // Coordinators live on whichever node owns the ws_id, so we can't fire
+  // a path-keyed delete the way ui/static does.  The router proxy reads
+  // ws_id from the body, resolves the owning node via the consistent-
+  // hash ring, and forwards to that node's POST workstreams/{ws_id}/delete.
+  buildDeleteRequest: function (wsId) {
+    return {
+      url: "/v1/api/route/workstreams/delete",
+      options: {
+        method: "POST",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({ ws_id: wsId }),
+      },
+    };
+  },
+  render: function () {
+    renderSavedCoordinators(_coordSavedItems);
+  },
+  onClose: function () {
+    // Drain queued retries before the explicit reload — without this,
+    // _savedCoordsRetry is still true from SSE events that arrived
+    // during the freeze, so loadSavedCoordinators's .finally() would
+    // re-fire a second fetch immediately after the first resolves.
+    // Same idiom as cancelCoordDeleteMode below.
+    _savedCoordsRetry = false;
+    loadSavedCoordinators();
+  },
+});
+
 function renderSavedCoordinators(items) {
+  _coordSavedItems = items;
   var section = document.getElementById("saved-coordinators");
   var cards = document.getElementById("saved-coord-cards");
   var countEl = document.getElementById("saved-coord-count");
@@ -1887,24 +1952,31 @@ function renderSavedCoordinators(items) {
     section.style.display = "none";
     cards.replaceChildren();
     if (countEl) countEl.textContent = "";
+    _coordPage = 0;
+    if (_coordDeleteController.inMode()) _coordDeleteController.cancel();
+    _renderCoordPagination();
     return;
   }
+  // Clamp the page index after deletes (or upstream churn) shrink the list.
+  var pages = Math.max(1, Math.ceil(items.length / COORD_PAGE_SIZE));
+  if (_coordPage > pages - 1) _coordPage = pages - 1;
+  if (_coordPage < 0) _coordPage = 0;
+  var visible = items.slice(
+    _coordPage * COORD_PAGE_SIZE,
+    (_coordPage + 1) * COORD_PAGE_SIZE,
+  );
+  _coordDeleteController.setItems(visible);
+
   section.style.display = "";
   if (countEl) countEl.textContent = "(" + items.length + ")";
   cards.replaceChildren();
-  items.forEach(function (sess) {
+  visible.forEach(function (sess) {
     var card = renderSessionCard(sess, {
-      ariaLabel: function (s) {
-        return (
-          "Resume coordinator: " + (s.alias || s.title || s.name || s.ws_id)
-        );
-      },
+      ariaLabel: _coordDeleteController.ariaLabel,
       onActivate: function (s, cardEl) {
+        if (_coordDeleteController.blockActivate()) return;
         // POST /open BEFORE navigating so capacity issues surface as a
-        // toast instead of a broken-looking detail page.  The /open
-        // endpoint calls the same lazy-rehydrate path the GET would,
-        // but we get the status code synchronously so the user learns
-        // "all slots in use" instead of staring at a 404.
+        // toast instead of a broken-looking detail page.
         cardEl.classList.add("is-busy");
         authFetch(
           "/v1/api/workstreams/" + encodeURIComponent(s.ws_id) + "/open",
@@ -1936,8 +2008,86 @@ function renderSavedCoordinators(items) {
           });
       },
     });
+    _coordDeleteController.decorateCard(card, sess);
     cards.appendChild(card);
   });
+  if (_coordDeleteController.inMode()) _coordDeleteController.refreshBar();
+  _renderCoordPagination();
+}
+
+function _renderCoordPagination() {
+  var pag = document.getElementById("coord-pagination");
+  if (!pag) return;
+  var total = _coordSavedItems.length;
+  var pages = Math.max(1, Math.ceil(total / COORD_PAGE_SIZE));
+  // Single-page lists and delete-mode hide the controls — page changes
+  // would invalidate the user's checkbox selections, so we lock them out.
+  if (pages <= 1 || _coordDeleteController.inMode()) {
+    pag.style.display = "none";
+    return;
+  }
+  pag.style.display = "";
+  var label = document.getElementById("coord-page-label");
+  if (label) {
+    /* Visible text uses the terse "X / Y" form to match the
+       filtered-pagination control elsewhere in the console; the long
+       form sits on the parent's aria-label so screen readers still get
+       a full sentence. */
+    label.textContent = _coordPage + 1 + " / " + pages;
+    pag.setAttribute(
+      "aria-label",
+      "Saved coordinators pagination — page " +
+        (_coordPage + 1) +
+        " of " +
+        pages,
+    );
+  }
+  var prev = document.getElementById("coord-page-prev");
+  if (prev) prev.disabled = _coordPage <= 0;
+  var next = document.getElementById("coord-page-next");
+  if (next) next.disabled = _coordPage >= pages - 1;
+}
+
+function coordPagePrev() {
+  if (_coordPage > 0) {
+    _coordPage--;
+    renderSavedCoordinators(_coordSavedItems);
+  }
+}
+
+function coordPageNext() {
+  var pages = Math.max(1, Math.ceil(_coordSavedItems.length / COORD_PAGE_SIZE));
+  if (_coordPage < pages - 1) {
+    _coordPage++;
+    renderSavedCoordinators(_coordSavedItems);
+  }
+}
+
+// HTML inline-onclick wrappers — keep the global names the markup binds
+// to and forward to the shared controller.
+function startCoordDeleteMode() {
+  _coordDeleteController.start();
+}
+function cancelCoordDeleteMode() {
+  _coordDeleteController.cancel();
+  // The freeze gate (see loadSavedCoordinators) may have queued retries
+  // while we were multi-selecting; drain them now that we're idle again.
+  if (_savedCoordsRetry) {
+    _savedCoordsRetry = false;
+    loadSavedCoordinators();
+  }
+}
+function toggleCoordSelectAll() {
+  _coordDeleteController.toggleAll();
+}
+function confirmCoordDeleteSelection() {
+  _coordDeleteController.confirmSelection();
+}
+function cancelCoordDelete() {
+  _coordDeleteController.closeModal();
+}
+function confirmCoordDelete() {
+  _coordDeleteController.confirm();
 }
 
 // --- Init ---

turnstone/console/static/coordinator/coordinator.css

@@ -396,6 +396,87 @@
   background: color-mix(in srgb, var(--err) 12%, var(--panel-2));
 }
 
+/* Output-guard finding rendered under its specific .coord-tool-row.
+   Stays anchored to the call that tripped the guard rather than
+   floating into the chat log as a generic "[output guard]" line —
+   matches interactive's `.output-warning` placement convention.
+   Severity drives the hue (matches .verdict-badge.verdict-* palette
+   so an operator scanning a workstream reads risk consistently
+   across both surfaces). */
+.coord-tool-row-warning {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  margin-top: 4px;
+  padding: 2px 8px;
+  font-size: 11px;
+  font-family: var(--font-mono);
+  border: 1px solid var(--hair);
+  border-radius: 3px;
+  border-left-width: 3px;
+  background: var(--panel-2);
+  color: var(--ink-2);
+  max-width: max-content;
+}
+.coord-tool-row-warning--low {
+  color: color-mix(in srgb, var(--ok) 70%, var(--ink-2));
+  border-left-color: var(--ok);
+  background: color-mix(in srgb, var(--ok) 12%, var(--panel-2));
+}
+.coord-tool-row-warning--medium {
+  color: color-mix(in srgb, var(--warn) 70%, var(--ink-2));
+  border-left-color: var(--warn);
+  background: var(--warn-tint);
+}
+.coord-tool-row-warning--high,
+.coord-tool-row-warning--critical {
+  color: color-mix(in srgb, var(--err) 70%, var(--ink-2));
+  border-left-color: var(--err);
+  background: color-mix(in srgb, var(--err) 12%, var(--panel-2));
+}
+.coord-tool-row-warning-redacted {
+  color: var(--ink-3);
+  font-size: 10px;
+}
+
+/* Storage-truncation indicator — same convention as the interactive
+   UI's `.tool-output-truncated` pill (transparent bg, dim border,
+   small font) so the operator reads the affordance the same way on
+   both surfaces.  Sibling node next to .coord-tool-row-result rather
+   than text-in-content so a future "best-effort JSON repair" pass
+   on the result body doesn't have to strip a marker string. */
+.coord-tool-truncated {
+  display: inline-block;
+  margin-top: 4px;
+  margin-left: 6px;
+  padding: 1px 6px;
+  font-size: 10px;
+  font-family: var(--font-mono);
+  color: var(--ink-3);
+  background: transparent;
+  border: 1px solid var(--ink-3);
+  border-radius: 3px;
+}
+
+/* memory/recall calls are background metadata — the audit trail is
+   useful but they crowd the tree on workstreams with heavy memory
+   usage.  Dim the row by default; full opacity on hover so they
+   stay inspectable.  Mirrors the interactive UI's metacog dim rule
+   (style.css `.ts-approval-tool[data-func-name="memory"]`).  The
+   row stamps `data-tool-name` from item.func_name in coordinator.js
+   so this selector has something to match. */
+.coord-tool-row[data-tool-name="memory"],
+.coord-tool-row[data-tool-name="recall"] {
+  opacity: 0.55;
+  transition: opacity 120ms ease-out;
+}
+.coord-tool-row[data-tool-name="memory"]:hover,
+.coord-tool-row[data-tool-name="memory"]:focus-within,
+.coord-tool-row[data-tool-name="recall"]:hover,
+.coord-tool-row[data-tool-name="recall"]:focus-within {
+  opacity: 1;
+}
+
 /* Tool result block — paired under its row, mono pre-block.  Capped
    at 240px with internal scroll so a long tool output doesn't push
    the rest of the chat off-screen.  The interactive UI uses a

turnstone/console/static/coordinator/index.html

@@ -182,6 +182,36 @@
     font-size: 11px;
     line-height: 1.4;
   }
+  /* Loading-state placeholder rendered while the bulk fetch is
+     in-flight. Same outer container as the real block so the row
+     height is stable when the real content swaps in. */
+  .ch-row .approval-block-loading {
+    color: var(--ink-3);
+  }
+  .ch-row .approval-loading-spin {
+    display: inline-block;
+    width: 8px;
+    height: 8px;
+    border-radius: 50%;
+    border: 1.5px solid var(--accent);
+    border-top-color: transparent;
+    margin-right: 5px;
+    animation: ts-spin 0.9s linear infinite;
+    vertical-align: middle;
+  }
+  /* Inline status note shown when the operator clicks Approve/Deny
+     but the call_id is stale (already resolved on another channel).
+     Quieter than a toast — the row is about to be replaced wholesale
+     by the refresh, so this only needs to bridge ~350ms. */
+  .ch-row .approval-stale-note {
+    font-size: 11px;
+    color: var(--ink-3);
+    font-style: italic;
+    margin-top: 4px;
+  }
+  @media (prefers-reduced-motion: reduce) {
+    .ch-row .approval-loading-spin { animation: none; }
+  }
   /* Auto-approved pill — same 22px indent as .approval-block / .meta
      so a child row showing both stacks cleanly.  Lower visual weight
      than the live approve/deny block (this is informational, not

turnstone/console/static/index.html

@@ -165,6 +165,14 @@
           <h2 class="home-section-title">
             <span>Saved Coordinators</span>
             <span id="saved-coord-count" class="home-section-count"></span>
+            <button
+              id="coord-delete-btn"
+              class="ws-delete-btn home-section-action"
+              onclick="startCoordDeleteMode()"
+              title="Delete coordinators"
+            >
+              <span aria-hidden="true">&#x1f5d1;</span> Delete
+            </button>
           </h2>
           <div
             id="saved-coord-cards"
@@ -172,6 +180,61 @@
             role="list"
             aria-live="polite"
           ></div>
+          <div
+            id="coord-pagination"
+            class="pagination"
+            style="display: none"
+            role="navigation"
+            aria-label="Saved coordinators pagination"
+          >
+            <button
+              id="coord-page-prev"
+              type="button"
+              onclick="coordPagePrev()"
+            >
+              &#x25c4; Prev
+            </button>
+            <span id="coord-page-label" aria-live="polite" aria-atomic="true">
+            </span>
+            <button
+              id="coord-page-next"
+              type="button"
+              onclick="coordPageNext()"
+            >
+              Next &#x25ba;
+            </button>
+          </div>
+          <div id="coord-delete-bar" class="ws-delete-bar">
+            <span
+              class="ws-delete-count-label"
+              id="coord-delete-bar-count"
+              role="status"
+              aria-live="polite"
+              aria-atomic="true"
+              >0 selected</span
+            >
+            <button
+              class="ws-delete-cancel-btn"
+              onclick="cancelCoordDeleteMode()"
+            >
+              Cancel
+            </button>
+            <button
+              class="ws-delete-selectall-btn"
+              id="coord-delete-bar-select-all"
+              onclick="toggleCoordSelectAll()"
+            >
+              Select All
+            </button>
+            <button
+              class="ws-delete-bar-btn"
+              id="coord-delete-bar-delete"
+              onclick="confirmCoordDeleteSelection()"
+              disabled
+            >
+              Delete Selected
+            </button>
+          </div>
         </section>
 
         <!-- Cluster details — node list, always visible.  The list is
@@ -3907,6 +3970,40 @@
       </div>
     </div>
 
+    <!-- Delete coordinators confirmation modal (batch) -->
+    <div
+      id="coord-delete-overlay"
+      class="ws-delete-modal-overlay"
+      style="display: none"
+      role="dialog"
+      aria-modal="true"
+      aria-labelledby="coord-delete-title"
+    >
+      <div id="coord-delete-box" class="ws-delete-modal-box">
+        <h3 id="coord-delete-title">Delete Coordinators</h3>
+        <div id="coord-delete-error" role="alert" aria-live="assertive"></div>
+        <p id="coord-delete-count"></p>
+        <div id="coord-delete-list" class="ws-delete-modal-list"></div>
+        <div id="coord-delete-buttons" class="ws-delete-modal-buttons">
+          <button
+            id="coord-delete-cancel-btn"
+            type="button"
+            onclick="cancelCoordDelete()"
+          >
+            Cancel
+          </button>
+          <button
+            id="coord-delete-confirm-btn"
+            class="ws-delete-confirm"
+            type="button"
+            onclick="confirmCoordDelete()"
+          >
+            Delete
+          </button>
+        </div>
+      </div>
+    </div>
+
     <script src="/static/admin.js"></script>
     <script src="/static/governance.js"></script>
     <script src="/static/app.js"></script>

turnstone/console/static/style.css

@@ -133,6 +133,17 @@
   font-size: 11px;
   font-variant-numeric: tabular-nums;
 }
+/* Right-align action buttons (e.g. Saved Coordinators "Delete") inside
+   .home-section-title without breaking the count's natural left position. */
+.home-section-title .home-section-action {
+  margin-left: auto;
+}
+
+/* Saved Coordinators reuses the existing .pagination control (see the
+   "Pagination" block below) — the visible page is capped at
+   COORD_PAGE_SIZE so Select-All fan-out is bounded.  Pagination is
+   hidden in delete mode and when there's only one page (see
+   _renderCoordPagination). */
 
 .home-coord-list {
   border: 1px solid var(--border);

turnstone/core/child_source.py

@@ -0,0 +1,268 @@
+"""Strategy interface for delivering child workstream lifecycle events.
+
+Two implementations bind to the unified :class:`ChildrenRegistry`:
+
+- :class:`SameNodeChildSource` — subscribes to a :class:`SessionManager`'s
+  state-change callbacks. In-process, no transport. For interactive
+  workstreams that spawn children locally (no cluster routing).
+- :class:`ClusterChildSource` — subscribes to a :class:`ClusterCollector`'s
+  listener channel and runs a daemon thread that drains the queue and
+  pushes events to the sink. For coordinator workstreams whose
+  children are routed across the cluster by hash bucket.
+
+The strategy doesn't translate events into UI-shaped payloads; that's
+the sink's job. This split keeps the strategy generic across kinds and
+lets the consumer (e.g. ``CoordinatorAdapter._dispatch_child_event``)
+own the per-kind translation.
+
+Sink signature: ``Callable[[dict[str, Any]], None]``. The sink is
+responsible for filtering by registry membership; strategies push raw
+events without registry-side filtering so the sink can decide whether
+to act based on its own state.
+"""
+
+from __future__ import annotations
+
+import queue
+import threading
+from typing import TYPE_CHECKING, Any, Protocol
+
+from turnstone.core.log import get_logger
+
+if TYPE_CHECKING:
+    from collections.abc import Callable, Iterable
+
+    from turnstone.core.children_registry import ChildrenRegistry
+    from turnstone.core.workstream import WorkstreamState
+
+log = get_logger(__name__)
+
+
+class ChildSource(Protocol):
+    """Subscription strategy for child workstream lifecycle events."""
+
+    def start(self, sink: Callable[[dict[str, Any]], None]) -> None:
+        """Begin delivering events to ``sink``. Idempotent."""
+
+    def shutdown(self) -> None:
+        """Stop the strategy. Idempotent; safe to call multiple times."""
+
+
+class _CollectorProtocol(Protocol):
+    """Subset of :class:`ClusterCollector` that :class:`ClusterChildSource` consumes.
+
+    Defined here (not imported) to keep ``turnstone/core/`` free of
+    ``turnstone/console/`` imports AND to let test fakes satisfy the
+    type signature without subclassing the real collector.
+    """
+
+    def get_snapshot_and_register(self, q: queue.Queue[dict[str, Any]]) -> dict[str, Any]:
+        """Register ``q`` and return the current snapshot."""
+
+    def unregister_listener(self, q: queue.Queue[dict[str, Any]]) -> None:
+        """Drop ``q`` from the listener set."""
+
+
+class _ManagerProtocol(Protocol):
+    """Subset of :class:`SessionManager` that :class:`SameNodeChildSource` consumes.
+
+    Lets test fakes participate in the strategy's typed surface
+    without forcing a full SessionManager construction.
+    """
+
+    def subscribe_to_state(self, callback: Callable[[str, WorkstreamState], None]) -> None:
+        """Register ``callback`` for state-change events."""
+
+    def unsubscribe_from_state(self, callback: Callable[[str, WorkstreamState], None]) -> None:
+        """Remove a previously-registered ``callback``."""
+
+
+class SameNodeChildSource:
+    """In-process child events via :class:`SessionManager` state observer.
+
+    Subscribes to the manager's state-change callbacks (registered via
+    :meth:`SessionManager.subscribe_to_state`). For each transition on
+    a workstream that's a known child (per the
+    :class:`ChildrenRegistry` reverse index), synthesises a
+    cluster-state-shaped event and pushes it to the sink.
+
+    Used by interactive workstreams when they gain spawn capability —
+    children live on the same node as the parent, so no cluster routing
+    is needed and event fan-out is in-process.
+    """
+
+    def __init__(
+        self,
+        manager: _ManagerProtocol,
+        registry: ChildrenRegistry,
+    ) -> None:
+        self._manager = manager
+        self._registry = registry
+        self._sink: Callable[[dict[str, Any]], None] | None = None
+        self._callback: Callable[[str, WorkstreamState], None] | None = None
+
+    def start(self, sink: Callable[[dict[str, Any]], None]) -> None:
+        if self._callback is not None:
+            return  # idempotent — already started
+        self._sink = sink
+
+        def _on_state(ws_id: str, state: WorkstreamState) -> None:
+            sink_fn = self._sink
+            if sink_fn is None:
+                return
+            # Cheap pre-filter: skip dispatch for transitions on
+            # workstreams that aren't children of any in-memory parent.
+            # ``has_children`` is a lock-free dict-truthiness read; the
+            # ``parent_for`` call below would otherwise acquire the
+            # registry lock on every state change even when no
+            # children exist (the steady state for an interactive
+            # manager). The cluster strategy can't pre-filter because
+            # the collector queue carries all events; here we have the
+            # information to skip the synthesis entirely.
+            if not self._registry.has_children():
+                return
+            if self._registry.parent_for(ws_id) is None:
+                return
+            # ``pending_approval_detail`` deliberately omitted — the
+            # field was removed from cluster_state end-to-end in the
+            # Stage 3 cleanup pass. Approval items arrive via bulk
+            # fetch; verdicts via the explicit intent_verdict event;
+            # resolution via approval_resolved.
+            event = {
+                "type": "cluster_state",
+                "ws_id": ws_id,
+                "state": state.value,
+                "node_id": "",
+                "tokens": 0,
+                "activity_state": "",
+            }
+            try:
+                sink_fn(event)
+            except Exception:
+                log.debug("same_node_child_source.sink_failed", exc_info=True)
+
+        self._callback = _on_state
+        self._manager.subscribe_to_state(_on_state)
+
+    def shutdown(self) -> None:
+        cb = self._callback
+        if cb is None:
+            return
+        try:
+            self._manager.unsubscribe_from_state(cb)
+        except Exception:
+            log.debug("same_node_child_source.unsubscribe_failed", exc_info=True)
+        self._callback = None
+        self._sink = None
+
+
+class ClusterChildSource:
+    """Cross-node child events via :class:`ClusterCollector` subscription.
+
+    Refactor of the existing fan-out machinery from
+    ``CoordinatorAdapter`` (was ``_collector_queue`` +
+    ``_fanout_thread`` + ``_fanout_loop``). Subscribes as a listener on
+    the collector's broadcast channel and runs a daemon thread that
+    drains the queue, pushing each event to the sink.
+
+    On :meth:`start`, also primes the registry from the collector's
+    snapshot so a parent that re-installs after a console restart sees
+    its already-live children without waiting for the next state tick.
+    The ``parents_provider`` callback returns the set of in-memory
+    parent ws_ids for snapshot filtering — only children whose parent
+    is currently installed get merged.
+    """
+
+    def __init__(
+        self,
+        collector: _CollectorProtocol,
+        registry: ChildrenRegistry,
+        *,
+        parents_provider: Callable[[], Iterable[str]],
+    ) -> None:
+        self._collector = collector
+        self._registry = registry
+        self._parents_provider = parents_provider
+        self._sink: Callable[[dict[str, Any]], None] | None = None
+        self._queue: queue.Queue[dict[str, Any]] | None = None
+        self._thread: threading.Thread | None = None
+        self._stop = threading.Event()
+
+    def start(self, sink: Callable[[dict[str, Any]], None]) -> None:
+        if self._thread is not None and self._thread.is_alive():
+            return  # idempotent — already started
+        self._sink = sink
+        self._queue = queue.Queue(maxsize=1000)
+        snapshot = self._collector.get_snapshot_and_register(self._queue)
+        self._prime_from_snapshot(snapshot)
+        self._stop.clear()
+        t = threading.Thread(
+            target=self._loop,
+            name="cluster-child-source",
+            daemon=True,
+        )
+        self._thread = t
+        t.start()
+
+    def shutdown(self) -> None:
+        self._stop.set()
+        t = self._thread
+        q = self._queue
+        coll = self._collector
+        self._thread = None
+        self._queue = None
+        if coll is not None and q is not None:
+            try:
+                coll.unregister_listener(q)
+            except Exception:
+                log.debug(
+                    "cluster_child_source.unregister_listener_failed",
+                    exc_info=True,
+                )
+        if t is not None:
+            t.join(timeout=2.0)
+        self._sink = None
+
+    def _loop(self) -> None:
+        q = self._queue
+        if q is None:
+            return
+        while not self._stop.is_set():
+            try:
+                event = q.get(timeout=1.0)
+            except queue.Empty:
+                continue
+            sink = self._sink
+            if sink is None:
+                continue
+            try:
+                sink(event)
+            except Exception:
+                log.debug("cluster_child_source.dispatch_failed", exc_info=True)
+
+    def _prime_from_snapshot(self, snapshot: dict[str, Any]) -> None:
+        """Populate the registry from a collector snapshot.
+
+        For every workstream in the snapshot whose ``parent_ws_id``
+        names a currently-installed parent (per ``parents_provider``),
+        merge it into the registry. Caller-installed parents that
+        appear in the snapshot are seeded; unknown parents are skipped
+        — they'll be picked up by the live fan-out path once their
+        ``ws_created`` event arrives.
+        """
+        nodes = snapshot.get("nodes", []) if isinstance(snapshot, dict) else []
+        if not nodes:
+            return
+        known_parents = set(self._parents_provider())
+        if not known_parents:
+            return
+        by_parent: dict[str, list[str]] = {}
+        for node in nodes:
+            for entry in node.get("workstreams", []) or []:
+                parent = entry.get("parent_ws_id") or ""
+                child_id = entry.get("id") or ""
+                if not parent or not child_id or parent not in known_parents:
+                    continue
+                by_parent.setdefault(parent, []).append(child_id)
+        for parent, kids in by_parent.items():
+            self._registry.merge_children(parent, kids)

turnstone/core/children_registry.py

@@ -0,0 +1,177 @@
+"""Universal parent → children registry for SessionManager.
+
+Pure data + lookups; no IO, no transport. Lifted from
+:class:`turnstone.console.coordinator_adapter.CoordinatorAdapter` where
+it lived bound to the coordinator kind. The lift is what lets the
+``ChildSource`` strategies (Step 2) plug into a single shared primitive
+regardless of whether children are local (interactive) or cluster-routed
+(coordinator).
+
+Storage rebuild and snapshot priming happen in the caller — typically
+the ``ChildSource`` implementation that owns the relevant transport.
+The registry exposes :meth:`merge_children` for bulk seeding so callers
+that compute child id lists from any source can feed them in without
+the registry needing to know about storage shapes or collector
+snapshots.
+
+Threading: every public method is internally locked. Helpers suffixed
+``_locked`` require the caller to already hold :attr:`_lock`.
+"""
+
+from __future__ import annotations
+
+import threading
+from typing import TYPE_CHECKING, Any
+
+if TYPE_CHECKING:
+    from collections.abc import Iterable
+
+
+class ChildrenRegistry:
+    """Tracks parent → children + reverse lookup for in-memory parents.
+
+    The forward index (``_children``) is parent_ws_id → set of child ws_ids.
+    The reverse index (``_child_to_parent``) is child_ws_id → parent_ws_id.
+    The presence map (``_active``) is parent_ws_id → UI ref, used by the
+    dispatch path to atomically check-and-route in one lock acquisition.
+
+    Closed / deleted children stay in the registry until their owning
+    parent is uninstalled — the tree UI keeps rendering them grayed out;
+    state authority lives in storage, not here.
+    """
+
+    def __init__(self) -> None:
+        self._children: dict[str, set[str]] = {}
+        self._child_to_parent: dict[str, str] = {}
+        self._lock = threading.Lock()
+        self._active: dict[str, Any] = {}
+
+    # ------------------------------------------------------------------
+    # Lifecycle — install / uninstall a parent
+    # ------------------------------------------------------------------
+
+    def install(self, parent_ws_id: str, ui: Any) -> None:
+        """Seed the forward set + presence map for a new parent.
+
+        Idempotent — re-installing re-points the UI but leaves the
+        existing child set intact. Mirrors the original
+        ``_install_coord_registry`` semantics so a coordinator that
+        rehydrates after a crash doesn't lose its known-children.
+        """
+        with self._lock:
+            self._children.setdefault(parent_ws_id, set())
+            self._active[parent_ws_id] = ui
+
+    def uninstall(self, parent_ws_id: str) -> None:
+        """Drop a parent: forward set, reverse-index entries, presence.
+
+        No-op if the parent is unknown. Used by close / eviction paths.
+        """
+        with self._lock:
+            self._uninstall_locked(parent_ws_id)
+
+    # ------------------------------------------------------------------
+    # Mutation — register children under a parent
+    # ------------------------------------------------------------------
+
+    def add_child(self, parent_ws_id: str, child_ws_id: str) -> Any | None:
+        """Register a child under a parent. Returns parent's UI or None.
+
+        Returns the parent's UI on success (so the dispatch path can
+        atomically check-and-route in one lock acquisition). Returns
+        ``None`` if the parent isn't installed (concurrent close /
+        eviction) or if the child is already registered (duplicate
+        ws_created from the cluster fan-out).
+        """
+        with self._lock:
+            ui = self._active.get(parent_ws_id)
+            if ui is None:
+                return None
+            existing = self._children.setdefault(parent_ws_id, set())
+            if child_ws_id in existing:
+                return None
+            existing.add(child_ws_id)
+            self._child_to_parent[child_ws_id] = parent_ws_id
+            return ui
+
+    def merge_children(self, parent_ws_id: str, child_ws_ids: Iterable[str]) -> None:
+        """Bulk-merge child_ids under a parent. Idempotent.
+
+        Sole bulk write-path — used by both storage-seeded rebuilds and
+        snapshot-seeded priming so reverse-index ordering invariants
+        hold regardless of which seed source races first.
+        """
+        with self._lock:
+            self._merge_locked(parent_ws_id, child_ws_ids)
+
+    # ------------------------------------------------------------------
+    # Lookups
+    # ------------------------------------------------------------------
+
+    def parent_for(self, child_ws_id: str) -> str | None:
+        """Reverse lookup: which parent owns this child? O(1)."""
+        with self._lock:
+            return self._child_to_parent.get(child_ws_id)
+
+    def has_children(self) -> bool:
+        """Lock-free fast path: any child registered under any parent?
+
+        Reads ``bool(self._child_to_parent)`` without taking the lock.
+        Dict-truthiness is a single GIL-atomic read, so callers on
+        the hot state-broadcast path can short-circuit without paying
+        the lock acquisition when the registry is empty (the steady
+        state for an interactive manager today). The answer is best-
+        effort — if a child is added concurrently with the read the
+        caller may falsely return ``False``, but the next state event
+        will pick up the change correctly.
+        """
+        return bool(self._child_to_parent)
+
+    def children_of(self, parent_ws_id: str) -> list[str]:
+        """Snapshot copy of the parent's child ws_ids.
+
+        Returned list is a copy so callers can iterate without holding
+        the registry lock during per-child work. A mutation racing with
+        the snapshot either lands before (included) or after (excluded)
+        — both outcomes are safe for cascade-style dispatch.
+        """
+        with self._lock:
+            child_set = self._children.get(parent_ws_id)
+            return list(child_set) if child_set else []
+
+    def ui_for(self, parent_ws_id: str) -> Any | None:
+        """Look up the UI registered for a parent."""
+        with self._lock:
+            return self._active.get(parent_ws_id)
+
+    def parents(self) -> list[str]:
+        """Snapshot copy of installed parent ws_ids."""
+        with self._lock:
+            return list(self._active)
+
+    # ------------------------------------------------------------------
+    # Locked helpers — caller must hold ``self._lock``
+    # ------------------------------------------------------------------
+
+    def _merge_locked(self, parent_ws_id: str, child_ws_ids: Iterable[str]) -> None:
+        """Idempotent merge under caller's lock. Empty/falsy ids skipped."""
+        existing = self._children.setdefault(parent_ws_id, set())
+        for cid in child_ws_ids:
+            if cid and cid not in existing:
+                existing.add(cid)
+                self._child_to_parent[cid] = parent_ws_id
+
+    def _uninstall_locked(self, parent_ws_id: str) -> None:
+        """Pop forward set + presence + own reverse-index entries.
+
+        Defensive: only clears reverse entries that still point at
+        ``parent_ws_id``. Schema-shaped reassignments (rare but
+        possible) shouldn't orphan the new owner's entry.
+        """
+        child_set = self._children.pop(parent_ws_id, None)
+        self._active.pop(parent_ws_id, None)
+        if child_set is None:
+            return
+        for cid in child_set:
+            if self._child_to_parent.get(cid) == parent_ws_id:
+                self._child_to_parent.pop(cid, None)

turnstone/core/history_decoration.py

@@ -0,0 +1,205 @@
+"""Shared history-replay decoration helpers.
+
+Both surfaces that build a history wire payload — interactive's SSE
+``_build_history`` and the lifted ``make_history_handler`` REST
+endpoint — need the same audit-trail data attached to each
+``tool_calls`` entry: the persisted intent verdict (``intent_verdicts``
+table) and the output-guard assessment (``output_assessments`` table).
+
+Centralising the lookup + decoration here keeps the two surfaces from
+drifting on which fields ship to the client and how they're shaped.
+The shared helpers also let us project only the fields the UI actually
+renders, dropping redundant ones (``call_id``/``func_name`` already
+carried on ``tc.id``/``tc.name``) so the wire payload stays tight.
+
+All functions are pure I/O or pure transforms — safe to call from
+either an async caller (via ``asyncio.to_thread``) or a sync hook.
+"""
+
+from __future__ import annotations
+
+import json
+from typing import Any
+
+from turnstone.core.log import get_logger
+
+log = get_logger(__name__)
+
+# Tool results are clamped at this length per row at storage time
+# (see ``session.py``'s ``store_text = raw_output[:TOOL_RESULT_STORAGE_CAP]``).
+# Keeping the constant here lets the truncation flag detection in
+# ``decorate_history_messages`` stay in sync without a magic number
+# duplicated across server.py / session.py.
+#
+# Raised from 2000 → 10000 because a 2000-char clip routinely cut
+# the body of a single grep / file read mid-line, leaving the
+# historical record useless for retrospective debugging.  FTS5
+# index + row size grow proportionally; the per-tool upper bound is
+# still bounded upstream by ``_truncate_output``'s context-budget
+# clamp (so a single huge result can't blow past the live context
+# window).
+TOOL_RESULT_STORAGE_CAP = 10000
+
+
+def load_verdict_indexes(
+    ws_id: str,
+) -> tuple[dict[str, dict[str, Any]], dict[str, dict[str, Any]]]:
+    """Bulk-load intent verdicts and output assessments for a workstream.
+
+    Returns ``(verdicts_by_call_id, assessments_by_call_id)``.  Both
+    tables are indexed by ws_id so the queries are O(rows-for-ws); the
+    DESC ordering plus first-seen-wins dedupe leaves the newest
+    verdict per call_id (LLM upgrade beats heuristic when both exist).
+
+    Pure storage I/O — safe to run in ``asyncio.to_thread`` from an
+    async caller.  Returns empty dicts when storage is unavailable or
+    the lookup raises (best-effort: replay must never block on
+    audit-trail decoration).
+    """
+    verdicts_by_call_id: dict[str, dict[str, Any]] = {}
+    assessments_by_call_id: dict[str, dict[str, Any]] = {}
+    if not ws_id:
+        return verdicts_by_call_id, assessments_by_call_id
+    try:
+        from turnstone.core.storage._registry import get_storage
+
+        storage = get_storage()
+        if storage is None:
+            return verdicts_by_call_id, assessments_by_call_id
+        for v in storage.list_intent_verdicts(ws_id=ws_id, limit=10000):
+            cid = v.get("call_id") or ""
+            if cid and cid not in verdicts_by_call_id:
+                verdicts_by_call_id[cid] = v
+        for a in storage.list_output_assessments(ws_id=ws_id, limit=10000):
+            cid = a.get("call_id") or ""
+            if cid and cid not in assessments_by_call_id:
+                assessments_by_call_id[cid] = a
+    except Exception:
+        # Missing storage / migration drift / driver error must not
+        # block replay — degrade to an unannotated history.
+        log.debug(
+            "verdict/assessment lookup failed; replay continues unannotated",
+            exc_info=True,
+        )
+    return verdicts_by_call_id, assessments_by_call_id
+
+
+def build_verdict_payload(vrow: dict[str, Any]) -> dict[str, Any] | None:
+    """Project a stored ``intent_verdicts`` row into the wire shape.
+
+    Returns ``None`` when the verdict is the unflagged baseline
+    (``risk_level == "none"``) — the client's ``renderVerdictBadge``
+    helper would suppress those anyway, so skipping at the wire layer
+    keeps the payload tight on long workstreams.
+
+    Drops ``call_id`` and ``func_name`` from the wire payload — they're
+    already carried on the parent ``tc.id`` / ``tc.name`` fields.
+    Ships ``reasoning`` for either tier when the row has non-empty
+    prose (heuristic rules in this project DO write meaningful
+    rationales — e.g. ``policy.py`` emits structured reasoning per
+    matched pattern). ``judge_model`` rides through so the batch tier
+    badge can render ``⚖ llm:claude-haiku-4`` on history-only batches
+    rather than the bare ``⚖ llm`` label.
+    """
+    if (vrow.get("risk_level") or "none") == "none":
+        return None
+    payload: dict[str, Any] = {
+        "risk_level": vrow.get("risk_level", "medium"),
+        "recommendation": vrow.get("recommendation", "review"),
+        "confidence": vrow.get("confidence", 0.0),
+        "intent_summary": vrow.get("intent_summary", ""),
+        "tier": vrow.get("tier", "heuristic"),
+    }
+    if vrow.get("reasoning"):
+        payload["reasoning"] = vrow.get("reasoning", "")
+    judge_model = vrow.get("judge_model") or ""
+    if judge_model:
+        payload["judge_model"] = judge_model
+    return payload
+
+
+def build_output_assessment_payload(arow: dict[str, Any]) -> dict[str, Any] | None:
+    """Project a stored ``output_assessments`` row into the wire shape.
+
+    Returns ``None`` when the assessment is the unflagged baseline
+    (``risk_level == "none"``) — same skip-on-clean pattern as
+    :func:`build_verdict_payload`.
+
+    Decodes ``flags`` from its JSON string form here so the client
+    never has to parse twice.  Falls back to an empty list on bad JSON
+    rather than raising — the rest of the assessment is still useful.
+    """
+    if (arow.get("risk_level") or "none") == "none":
+        return None
+    flags_raw = arow.get("flags") or "[]"
+    try:
+        flags = json.loads(flags_raw) if isinstance(flags_raw, str) else flags_raw
+    except (ValueError, TypeError):
+        flags = []
+    return {
+        "risk_level": arow.get("risk_level", "none"),
+        "flags": flags if isinstance(flags, list) else [],
+        "redacted": bool(arow.get("redacted", 0)),
+    }
+
+
+def decorate_tool_call(
+    tc: dict[str, Any],
+    verdicts_by_call_id: dict[str, dict[str, Any]],
+    assessments_by_call_id: dict[str, dict[str, Any]],
+) -> None:
+    """Mutate ``tc`` in place, attaching ``verdict`` / ``output_assessment``.
+
+    Works on either tool_call shape:
+    - OpenAI format (``{id, function: {name, arguments}}``) — used by
+      ``/history`` REST.
+    - Flattened format (``{id, name, arguments}``) — used by SSE replay.
+
+    Both carry ``id`` at the top level, which is the only field this
+    helper reads.  No-ops cleanly when the call_id has no matching
+    row (unflagged tools stay clean).
+    """
+    call_id = tc.get("id", "") or ""
+    if not call_id:
+        return
+    vrow = verdicts_by_call_id.get(call_id)
+    if vrow is not None:
+        verdict = build_verdict_payload(vrow)
+        if verdict is not None:
+            tc["verdict"] = verdict
+    arow = assessments_by_call_id.get(call_id)
+    if arow is not None:
+        assessment = build_output_assessment_payload(arow)
+        if assessment is not None:
+            tc["output_assessment"] = assessment
+
+
+def decorate_history_messages(
+    messages: list[dict[str, Any]],
+    verdicts_by_call_id: dict[str, dict[str, Any]],
+    assessments_by_call_id: dict[str, dict[str, Any]],
+) -> None:
+    """Mutate a list of OpenAI-format messages, decorating tool_calls.
+
+    Used by the ``/history`` REST endpoint after ``load_messages``
+    returns.  For each assistant message with ``tool_calls``, runs
+    :func:`decorate_tool_call` on every entry.  For each tool message
+    whose content hits the storage cap, sets ``truncated: True`` so
+    the client can render the "… truncated in storage" pill.
+
+    Pure transform — no I/O.  Async callers should pre-load the
+    indexes via :func:`load_verdict_indexes` (in ``to_thread``) and
+    pass them in.
+    """
+    for msg in messages:
+        role = msg.get("role")
+        if role == "assistant":
+            tcs = msg.get("tool_calls")
+            if isinstance(tcs, list):
+                for tc in tcs:
+                    if isinstance(tc, dict):
+                        decorate_tool_call(tc, verdicts_by_call_id, assessments_by_call_id)
+        elif role == "tool":
+            content = msg.get("content")
+            if isinstance(content, str) and len(content) >= TOOL_RESULT_STORAGE_CAP:
+                msg["truncated"] = True

turnstone/core/metacognition.py

@@ -5,7 +5,50 @@ from __future__ import annotations
 import re
 import time
 
-_COOLDOWN_SECS = 300  # 5 minutes between nudges of the same type
+# Default cooldown (s) between nudges of the same type.  Production
+# paths pass ``cooldown_secs`` explicitly from
+# ``MemoryConfig.nudge_cooldown`` (config-store ``memory.nudge_cooldown``,
+# default 300); this constant is the fallback for tests and unit-style
+# callers without a ``MemoryConfig`` and is kept aligned with that
+# canonical default so both paths behave the same.
+_COOLDOWN_SECS = 300
+
+# Repeat-detection threshold — number of *consecutive* identical tool
+# calls (same name + same arguments) before a repeat warning fires.
+# Two-in-a-row is too noisy because legitimate retries on transient
+# failures look identical; three-in-a-row is the cheapest signal that
+# the model is stuck on the same call.
+_REPEAT_THRESHOLD = 3
+
+
+class RepeatDetector:
+    """Detect a streak of identical tool-call signatures.
+
+    ``record(sig)`` returns ``True`` once *sig* has been recorded
+    ``threshold`` times in a row (default 3).  Recording a different
+    signature resets the streak — interleaved tool calls aren't a
+    stuck loop, only repeated identical ones are.  After a fire, the
+    caller is expected to call ``clear()`` to start a fresh streak.
+    """
+
+    def __init__(self, threshold: int = _REPEAT_THRESHOLD) -> None:
+        self._threshold = threshold
+        self._sig: str | None = None
+        self._count = 0
+
+    def record(self, sig: str) -> bool:
+        """Record *sig*; return ``True`` when the streak hits the threshold."""
+        if sig == self._sig:
+            self._count += 1
+        else:
+            self._sig = sig
+            self._count = 1
+        return self._count >= self._threshold
+
+    def clear(self) -> None:
+        self._sig = None
+        self._count = 0
+
 
 # ---------------------------------------------------------------------------
 # Nudge messages (brief, model-facing hints)

turnstone/core/session.py

@@ -44,6 +44,7 @@ from turnstone.core.attachments import (
 )
 from turnstone.core.config import get_tavily_key
 from turnstone.core.edit import find_occurrences, pick_nearest
+from turnstone.core.history_decoration import TOOL_RESULT_STORAGE_CAP
 from turnstone.core.log import get_logger
 from turnstone.core.memory import (
     count_structured_memories,
@@ -81,6 +82,7 @@ from turnstone.core.memory_relevance import (
     score_memories,
 )
 from turnstone.core.metacognition import (
+    RepeatDetector,
     detect_completion,
     detect_correction,
     format_nudge,
@@ -90,6 +92,7 @@ from turnstone.core.providers import create_provider
 from turnstone.core.safety import is_command_blocked, sanitize_command
 from turnstone.core.sandbox import execute_math_sandboxed
 from turnstone.core.storage._registry import get_storage
+from turnstone.core.tool_advisory import escape_wrapper_tags, render_system_reminder
 from turnstone.core.tool_search import ToolSearchManager
 from turnstone.core.tools import (
     AGENT_AUTO_TOOLS,
@@ -275,6 +278,8 @@ class SessionUI(Protocol):
     def on_plan_review(self, content: str) -> str: ...
     def on_info(self, message: str) -> None: ...
     def on_error(self, message: str) -> None: ...
+    def on_user_reminder(self, reminders: list[dict[str, str]]) -> None: ...
+    def on_tool_reminder(self, reminders: list[dict[str, str]], tool_call_id: str) -> None: ...
     def on_state_change(self, state: str) -> None: ...
     def on_rename(self, name: str) -> None: ...
     def on_intent_verdict(self, verdict: dict[str, Any]) -> None:
@@ -474,8 +479,12 @@ class ChatSession:
             collections.OrderedDict()
         )
         self._queued_lock = threading.Lock()
-        # Repeat detection: track recent tool call signatures
-        self._recent_tool_sigs: set[str] = set()
+        # Repeat detection: streak counter over tool-call signatures.
+        # Fires when a (name, args) signature has been seen N times in
+        # a row; recording any different signature resets the streak.
+        # Also cleared after a write tool succeeds (state changed) or
+        # after a warning fires (clean slate, re-fire on the next streak).
+        self._repeat_detector = RepeatDetector()
         # Tool error tracking: call_id → is_error for message persistence
         self._tool_error_flags: dict[str, bool] = {}
         # Cooperative cancellation: set from outside to stop generation
@@ -1293,7 +1302,7 @@ class ChatSession:
             self._ws_id = ws_id
         self.messages = messages
         self._read_files.clear()
-        self._recent_tool_sigs.clear()
+        self._repeat_detector.clear()
         self._last_usage = None
         self._calibrated_msg_count = 0
         self._title_generated = True  # don't re-title resumed workstreams
@@ -1638,6 +1647,124 @@ class ChatSession:
         """System messages + conversation history."""
         return self.system_messages + self.messages
 
+    def _apply_reminders_for_provider(
+        self,
+        messages: list[dict[str, Any]],
+    ) -> list[dict[str, Any]]:
+        """Return a transient copy of *messages* with ``_reminders`` rendered
+        inline for the model.
+
+        Metacognitive nudges live on the message dict's ``_reminders``
+        side-channel regardless of role — user messages carry
+        user-channel nudges (correction / denial / resume / start /
+        completion), tool messages carry tool-channel nudges
+        (tool_error / repeat).  Both ride the same side-channel so
+        ``self.messages`` and every downstream consumer (UI replay,
+        compaction, title gen, channel adapters, DB) see clean
+        ``content``; only the wire-bound copy here carries the
+        rendered reminder.
+
+        For each message that has ``_reminders`` AND has not yet been
+        flagged delivered, build a shallow copy and splice the reminders
+        as ``<system-reminder>`` blocks onto the trailing edge of the
+        copy's ``content`` — string content gets a tail block, list
+        content gets the block on the trailing text part (or a new text
+        part if there isn't one).  Messages without ``_reminders`` (or
+        already delivered) pass through unchanged (same object
+        reference) so the common case is allocation-free.
+
+        **Reminder lifecycle.**  After a successful provider stream
+        ``_mark_reminders_delivered`` flips ``_reminders_delivered`` to
+        ``True`` on every message (user or tool) that carried reminders
+        into that call, so subsequent provider calls skip them — the
+        model sees each reminder once, the turn it advised.  The
+        ``_reminders`` key itself stays on the message dict for the
+        lifetime of the in-memory session so ``/history`` (reconnecting
+        tabs, multi-tab live mirrors) still renders the same nudge
+        bubbles the originating tab saw; only the wire-side replay is
+        suppressed.  Compaction is the natural full drain (it replaces
+        ``self.messages`` wholesale).
+
+        ``sanitize_messages`` later drops both leading-underscore sibling
+        keys (``_reminders`` and ``_reminders_delivered``) on the way to
+        the wire, so the provider sees only ``content`` with the
+        reminder spliced in.
+
+        **Read-only contract on the returned list.**  The pass-through
+        path returns the original ``msg`` by reference; callers must
+        not mutate the returned dicts in place (today's only callers —
+        ``sanitize_messages`` + provider conversion — construct new
+        dicts, so the contract holds).  Mutations on the spliced copy
+        are safe; mutations on a pass-through reference would bleed
+        back into ``self.messages``.
+        """
+        out: list[dict[str, Any]] = []
+        for msg in messages:
+            raw_reminders = msg.get("_reminders")
+            if not raw_reminders or msg.get("_reminders_delivered"):
+                out.append(msg)
+                continue
+            # Defensive filter — only dict entries are valid; a string /
+            # None / other shape from corruption or partial state must
+            # not abort the whole send via an AttributeError on .get().
+            # Mirrors the same filter ``_build_history`` applies on the
+            # wire-out side.
+            reminders = [r for r in raw_reminders if isinstance(r, dict)]
+            if not reminders:
+                out.append(msg)
+                continue
+            block = "\n\n" + "\n\n".join(
+                render_system_reminder(r.get("text", "")) for r in reminders
+            )
+            copy = dict(msg)
+            content = copy.get("content")
+            if isinstance(content, str):
+                copy["content"] = escape_wrapper_tags(content) + block
+            elif isinstance(content, list):
+                # Shallow-copy the parts list and any text parts we'll
+                # mutate so the original list/dicts in self.messages stay
+                # untouched.
+                new_parts = [
+                    dict(p) if isinstance(p, dict) and p.get("type") == "text" else p
+                    for p in content
+                ]
+                text_parts = [
+                    p for p in new_parts if isinstance(p, dict) and p.get("type") == "text"
+                ]
+                for part in text_parts:
+                    part["text"] = escape_wrapper_tags(part.get("text", ""))
+                if text_parts:
+                    text_parts[-1]["text"] = text_parts[-1]["text"] + block
+                else:
+                    new_parts.append({"type": "text", "text": block})
+                copy["content"] = new_parts
+            else:
+                # Unexpected shape (None, etc.) — attach as a text-only
+                # content rather than dropping the reminder silently.
+                copy["content"] = block.lstrip()
+            out.append(copy)
+        return out
+
+    def _mark_reminders_delivered(self) -> None:
+        """Flag every message's ``_reminders`` as delivered.
+
+        Role-agnostic — both user-channel reminders (set by
+        ``_attach_pending_user_reminders`` on user messages) and
+        tool-channel reminders (set by the per-result loop on tool
+        messages) ride the same ``_reminders`` side-channel and the
+        same delivered flag.  Called after a successful provider
+        stream; subsequent calls to ``_apply_reminders_for_provider``
+        skip messages with this flag, so the model sees each reminder
+        exactly once (the turn it advised).  The flag is a sibling key
+        like ``_reminders`` itself; ``sanitize_messages`` strips both
+        before the wire and ``_build_history`` ignores the delivered
+        flag entirely so UI replay parity is preserved across
+        reconnects.
+        """
+        for msg in self.messages:
+            if msg.get("_reminders") and not msg.get("_reminders_delivered"):
+                msg["_reminders_delivered"] = True
+
     def _emit_state(self, state: str) -> None:
         """Notify UI of a workstream state transition.
 
@@ -2113,12 +2240,13 @@ class ChatSession:
         # Metacognitive user-channel drain: any nudges queued via
         # _queue_user_advisory (correction/start/completion from this
         # turn, denial from the previous tool batch, resume from
-        # rehydrate) splice in as <system-reminder> blocks at the
-        # trailing edge of the user content. The DB row stores
-        # ``user_input`` only (line below) so these blocks stay
-        # ephemeral — they advise the next assistant turn and do not
-        # persist across reloads.
-        self._splice_pending_user_advisories(user_msg)
+        # rehydrate) attach to the user message dict's ``_reminders``
+        # side-channel — content stays clean.  The wire-side splice
+        # happens later in _apply_reminders_for_provider against a
+        # transient copy.  The DB row stores ``user_input`` only (line
+        # below) so reminders stay in-memory only and don't persist
+        # across reloads.
+        self._attach_pending_user_reminders(user_msg)
         self.messages.append(user_msg)
         self._msg_tokens.append(max(1, int(self._msg_char_count(user_msg) / self._chars_per_token)))
         # DB row stores the raw text only; attachments are joined back in
@@ -2198,7 +2326,7 @@ class ChatSession:
         try:
             while True:
                 self._check_cancelled(my_generation)
-                msgs = self._full_messages()
+                msgs = self._apply_reminders_for_provider(self._full_messages())
 
                 if self.debug:
                     self._debug_print_request(msgs)
@@ -2235,7 +2363,7 @@ class ChatSession:
                         self.ui.on_thinking_stop()
                         try:
                             self._compact_messages(auto=True)
-                            msgs = self._full_messages()
+                            msgs = self._apply_reminders_for_provider(self._full_messages())
                             self.ui.on_thinking_start()
                             stream = self._create_stream_with_retry(msgs)
                         except Exception:
@@ -2257,7 +2385,19 @@ class ChatSession:
                 if self._generation != my_generation:
                     return
 
-                self._update_token_table(assistant_msg)
+                # Reuse the wire-bound ``msgs`` we already built for the
+                # stream call instead of re-applying the reminder splice
+                # (perf-2).  After mark-delivered runs below, a fresh
+                # _apply_reminders_for_provider would skip the
+                # just-rendered reminders and undercount; passing the
+                # already-rendered list keeps calibration char count
+                # aligned with what the provider actually counted.
+                self._update_token_table(assistant_msg, msgs=msgs)
+                # Reminders that rode this stream have now reached the
+                # model; flag delivered so the next provider call skips
+                # them (one-shot semantics for the wire; UI replay still
+                # surfaces ``_reminders`` for reconnect parity).
+                self._mark_reminders_delivered()
                 self._print_status_line()  # Report usage for EVERY API call
                 self.messages.append(assistant_msg)
                 self._msg_tokens.append(
@@ -2275,16 +2415,7 @@ class ChatSession:
                 if assistant_msg.get("_provider_content"):
                     provider_data = json.dumps(assistant_msg["_provider_content"])
 
-                # Build tool_calls JSON (excluding memory tools)
-                tool_calls_json: str | None = None
-                if tc:
-                    filtered_tc = [
-                        call
-                        for call in tc
-                        if call.get("function", {}).get("name", "") not in ("memory", "recall")
-                    ]
-                    if filtered_tc:
-                        tool_calls_json = json.dumps(filtered_tc)
+                tool_calls_json: str | None = json.dumps(tc) if tc else None
 
                 # Save assistant message atomically (content + tool_calls in one row)
                 if content or provider_data is not None or tool_calls_json:
@@ -2332,92 +2463,10 @@ class ChatSession:
                 if self._generation != my_generation:
                     return
 
-                # Repeat detection: warn when a tool is called with identical args.
-                # Skip error outputs — retrying a failed tool is valid.
-                # Skip JSON outputs (MCP structured results) — appending
-                # text would corrupt the payload.
-                _tc_by_id = {c["id"]: c for c in tool_calls}
-                _repeat_detected = False
-                _error_prefixes = (
-                    "Error",
-                    "JSON parse error",
-                    "Unknown tool",
-                    "Command timed out",
-                    "Blocked:",
-                    "Denied",
-                )
-
-                # Clear dedup sigs when a write tool executed successfully —
-                # the state has changed so re-running a read tool is valid.
-                _write_tools = frozenset({"write_file", "edit_file", "bash"})
-                if any(
-                    tc["function"]["name"] in _write_tools
-                    and not any(
-                        cid == tc["id"] and isinstance(out, str) and out.startswith(_error_prefixes)
-                        for cid, out in results
-                    )
-                    for tc in tool_calls
-                ):
-                    self._recent_tool_sigs.clear()
-                for i, (tc_id, output) in enumerate(results):
-                    tc = _tc_by_id.get(tc_id)
-                    if tc and isinstance(output, str) and not output.startswith(_error_prefixes):
-                        raw = tc["function"]["name"] + ":" + tc["function"]["arguments"]
-                        sig = hashlib.sha256(raw.encode()).hexdigest()
-                        is_json = output.lstrip().startswith(("{", "["))
-                        if sig in self._recent_tool_sigs:
-                            _repeat_detected = True
-                            if not is_json:
-                                output += (
-                                    "\n\n⚠ Warning: this is an identical repeat of a "
-                                    "previous tool call. The result is the same. "
-                                    "Try a different approach."
-                                )
-                                results[i] = (tc_id, output)
-                            self.ui.on_info(
-                                f"{GRAY}[repeat: {tc['function']['name']}() "
-                                f"called with same arguments]{RESET}"
-                            )
-                        self._recent_tool_sigs.add(sig)
-                if _repeat_detected:
-                    # Reset so the model gets a clean slate after the warning.
-                    # If it repeats again, a new warning fires.
-                    self._recent_tool_sigs.clear()
-                    if self._mem_cfg.nudges and should_nudge(
-                        "repeat",
-                        self._metacog_state,
-                        message_count=len(self.messages),
-                        cooldown_secs=self._mem_cfg.nudge_cooldown,
-                    ):
-                        self._queue_tool_advisory("repeat", format_nudge("repeat"))
-
-                # Tool-error nudge — checked here (pre-iteration) so the
-                # MetacognitiveAdvisory rides the same _collect_advisories
-                # drain pass that handles guard findings and user
-                # interjections.  Cooldown gating in should_nudge keeps
-                # this to one nudge per batch even with many failing
-                # tools.
-                if (
-                    self._mem_cfg.nudges
-                    and any(
-                        isinstance(out, str)
-                        and (
-                            out.startswith("Error")
-                            or " error: " in out[:50]
-                            or out.startswith("Command timed out")
-                            or out.startswith("Unknown tool:")
-                        )
-                        for _, out in results
-                    )
-                    and should_nudge(
-                        "tool_error",
-                        self._metacog_state,
-                        message_count=len(self.messages),
-                        memory_count=self._visible_memory_count(),
-                        cooldown_secs=self._mem_cfg.nudge_cooldown,
-                    )
-                ):
-                    self._queue_tool_advisory("tool_error", format_nudge("tool_error"))
+                # Repeat-detection + tool-error nudge.  Mutates *results*
+                # in place to inject inline warning text on identical
+                # repeats; queues advisories for the next drain pass.
+                self._apply_post_execute_advisories(tool_calls, results)
 
                 # Map tool_call_id → tool name for logging
                 from turnstone.core.tool_advisory import wrap_tool_result
@@ -2456,19 +2505,30 @@ class ChatSession:
                     # Capture raw output for DB storage before advisory wrapping
                     raw_output = output
 
-                    # Advisory injection: wrap tool output with advisories
-                    # (output guard findings, queued user messages, etc.)
-                    advisories = self._collect_advisories(
+                    # Advisory injection: persistent advisories (output
+                    # guard findings, queued user interjections) wrap
+                    # into the tool-result envelope and stay in
+                    # self.messages.  Metacognitive tool-channel
+                    # reminders (tool_error / repeat) ride a side-channel
+                    # — never inside content — so the model sees the
+                    # splice only at the wire boundary via
+                    # _apply_reminders_for_provider, while UI/replay
+                    # surfaces them as a themed bubble below the tool
+                    # result.
+                    persistent_advisories, metacog_reminders = self._collect_advisories(
                         assessment, _tc_names.get(tc_id, ""), _ri == _last_idx
                     )
                     if isinstance(output, str):
-                        output = wrap_tool_result(output, advisories)
-                    elif isinstance(output, list) and advisories:
+                        output = wrap_tool_result(output, persistent_advisories)
+                    elif isinstance(output, list) and persistent_advisories:
                         # Structured/image output — append advisories as a
                         # text part so they aren't silently dropped.
                         output = [
                             *output,
-                            {"type": "text", "text": wrap_tool_result("", advisories)},
+                            {
+                                "type": "text",
+                                "text": wrap_tool_result("", persistent_advisories),
+                            },
                         ]
 
                     tool_msg: dict[str, Any] = {
@@ -2478,6 +2538,15 @@ class ChatSession:
                     }
                     if self._tool_error_flags.pop(tc_id, False):
                         tool_msg["is_error"] = True
+                    if metacog_reminders:
+                        tool_msg["_reminders"] = metacog_reminders
+                        try:
+                            self.ui.on_tool_reminder(metacog_reminders, tc_id)
+                        except Exception:
+                            log.warning(
+                                "ui.on_tool_reminder failed; reminder still attached",
+                                exc_info=True,
+                            )
                     self.messages.append(tool_msg)
 
                     # Token estimation — image content uses a fixed heuristic
@@ -2494,27 +2563,27 @@ class ChatSession:
                         tok_est = max(1, int(len(output) / self._chars_per_token))
                     self._msg_tokens.append(tok_est)
 
-                    # Log tool result (skip memory tools to avoid noise).
-                    # Use raw_output (pre-advisory-wrap) so DB stores clean
-                    # tool output without ephemeral advisory XML.
+                    # Log tool result.  Use raw_output (pre-advisory-wrap)
+                    # so the DB stores clean tool output without ephemeral
+                    # advisory XML.  memory/recall persist alongside every
+                    # other tool: replays show the full audit trail, and
+                    # output already passes through _truncate_output above
+                    # so size is bounded by the same budget every other
+                    # tool uses.
                     _tname = _tc_names.get(tc_id, "")
-                    if _tname not in (
-                        "memory",
-                        "recall",
-                    ):
-                        if isinstance(raw_output, list):
-                            store_text = " ".join(
-                                p.get("text", "") for p in raw_output if p.get("type") == "text"
-                            )[:2000]
-                        else:
-                            store_text = raw_output[:2000]
-                        save_message(
-                            self._ws_id,
-                            "tool",
-                            store_text,
-                            _tname,
-                            tool_call_id=tc_id,
-                        )
+                    if isinstance(raw_output, list):
+                        store_text = " ".join(
+                            p.get("text", "") for p in raw_output if p.get("type") == "text"
+                        )[:TOOL_RESULT_STORAGE_CAP]
+                    else:
+                        store_text = raw_output[:TOOL_RESULT_STORAGE_CAP]
+                    save_message(
+                        self._ws_id,
+                        "tool",
+                        store_text,
+                        _tname,
+                        tool_call_id=tc_id,
+                    )
                 # Inject user feedback from approval prompt (e.g. "y, use full path")
                 if user_feedback:
                     self.messages.append({"role": "user", "content": user_feedback})
@@ -2583,10 +2652,7 @@ class ChatSession:
             # Drain any queued user messages so they appear in the
             # conversation and are visible on the next send().
             self._flush_queued_messages()
-            # Tool-channel nudges queued earlier in this generation
-            # (tool_error, repeat) belong to the abandoned batch — drop
-            # them so they don't bleed into the next send()'s tool loop.
-            self._pending_tool_advisories.clear()
+            self._drain_pending_advisories()
             # No need to clear _cancel_event — it's replaced per-generation
             # in send(), so this generation's event is simply discarded.
             self.ui.on_info("[Generation cancelled]")
@@ -2596,15 +2662,29 @@ class ChatSession:
         except KeyboardInterrupt as exc:
             self._synthesize_cancelled_results("Interrupted by user.")
             self._flush_queued_messages()
-            self._pending_tool_advisories.clear()
+            self._drain_pending_advisories()
             self._record_fatal_error(exc)
             raise
         except Exception as exc:
             self._flush_queued_messages()
-            self._pending_tool_advisories.clear()
+            self._drain_pending_advisories()
             self._record_fatal_error(exc)
             raise
 
+    def _drain_pending_advisories(self) -> None:
+        """Drop both advisory channels' pending buffers.
+
+        Both channels are scoped to the current generation: tool-channel
+        nudges (``tool_error``, ``repeat``) queued earlier in this batch
+        and user-channel nudges (``correction``, ``denial``, …) queued
+        during ``_check_metacognitive_nudge`` but not yet drained.  When
+        a generation is abandoned (cancel, KeyboardInterrupt, unexpected
+        exception) both must drop so they don't bleed into the next
+        send's tool loop or next user turn.
+        """
+        self._pending_tool_advisories.clear()
+        self._pending_user_advisories.clear()
+
     def _synthesize_cancelled_results(self, reason: str) -> None:
         """Synthesize tool_result messages for orphaned tool_calls after cancel.
 
@@ -3137,8 +3217,24 @@ class ChatSession:
         text_chars, images, doc_chars = self._msg_text_chars(msg)
         return text_chars + doc_chars + int(images * self._IMAGE_TOKENS * self._chars_per_token)
 
-    def _update_token_table(self, assistant_msg: dict[str, Any]) -> None:
-        """Update per-message token estimates using API usage data."""
+    def _update_token_table(
+        self,
+        assistant_msg: dict[str, Any],
+        *,
+        msgs: list[dict[str, Any]] | None = None,
+    ) -> None:
+        """Update per-message token estimates using API usage data.
+
+        *msgs* (optional) is the wire-bound message list already built
+        for the stream call — passing it avoids a redundant
+        ``_apply_reminders_for_provider`` walk and, more importantly,
+        ensures the char count matches the bytes the provider counted
+        even after ``_mark_reminders_delivered`` has flipped the flag
+        on the reminders that rode the stream.  When *msgs* is None the
+        caller didn't pre-build (rare path) — fall back to applying
+        the splice on the fly, but be aware the result will be
+        reminder-free if delivered flags are already set.
+        """
         if not self._last_usage:
             return
 
@@ -3148,8 +3244,16 @@ class ChatSession:
         # Calibrate chars_per_token ratio from actual usage.
         # Images get a fixed token budget (subtracted).  Documents
         # tokenize non-linearly depending on provider — excluded from
-        # calibration so they don't skew the text ratio.
-        all_msgs = self._full_messages()  # system + self.messages (before append)
+        # calibration so they don't skew the text ratio.  ``all_msgs``
+        # must reflect what the provider actually counted in
+        # ``prompt_tokens``: when called from the loop with the
+        # pre-built ``msgs``, that's exact; without it, fall back to
+        # applying the splice fresh (post-mark-delivered the result
+        # may undercount, but no caller currently takes this path
+        # after a successful stream).
+        all_msgs = (
+            msgs if msgs is not None else self._apply_reminders_for_provider(self._full_messages())
+        )  # system + self.messages (before append)
         active_tools = self._get_active_tools() or []
         tool_def_chars = sum(len(json.dumps(t)) for t in active_tools)
         text_chars = 0
@@ -3391,7 +3495,7 @@ class ChatSession:
         self.messages = [summary_user, summary_asst]
         # File contents are gone after compaction — force re-read before edit_file
         self._read_files.clear()
-        self._recent_tool_sigs.clear()
+        self._repeat_detector.clear()
 
         # Rebuild token table
         su_tok = max(1, int(self._msg_char_count(summary_user) / self._chars_per_token))
@@ -3780,12 +3884,26 @@ class ChatSession:
         assessment: OutputAssessment | None,
         func_name: str,
         is_last_in_batch: bool,
-    ) -> list[ToolAdvisory]:
+    ) -> tuple[list[ToolAdvisory], list[dict[str, str]]]:
         """Gather advisories to attach to a tool result message.
 
-        Returns an empty list when no advisories apply (common case).
-        Guard advisories attach per-result; user messages drain on the
-        last result in the batch only.
+        Returns ``(persistent, metacog_reminders)``:
+
+        - ``persistent`` — guard findings + user interjections that ride
+          inside the tool-result envelope via ``wrap_tool_result``.
+          These are conversation history and must persist in
+          ``self.messages``.
+        - ``metacog_reminders`` — list of ``{"type", "text"}`` dicts for
+          ``tool_error`` / ``repeat`` nudges that the caller attaches to
+          the tool message dict's ``_reminders`` side-channel.  Like
+          user-channel reminders, they are spliced into ``content`` only
+          at the wire boundary by ``_apply_reminders_for_provider`` and
+          surfaced separately on the UI as a themed bubble below the
+          tool result.
+
+        Both lists are empty when no advisories apply (common case).
+        Guard advisories attach per-result; user messages and
+        metacognitive nudges drain on the last result in the batch only.
         """
         from turnstone.core.tool_advisory import GuardAdvisory, UserInterjection
 
@@ -3801,26 +3919,25 @@ class ChatSession:
             if is_last_in_batch:
                 self._pending_tool_advisories.clear()
                 self._flush_queued_messages()
-            return []
+            return [], []
 
-        advisories: list[ToolAdvisory] = []
+        persistent: list[ToolAdvisory] = []
+        metacog_reminders: list[dict[str, str]] = []
 
-        # Output guard advisory
+        # Output guard advisory — persists with the tool result.
         if assessment is not None:
-            advisories.append(GuardAdvisory(assessment=assessment, func_name=func_name))
+            persistent.append(GuardAdvisory(assessment=assessment, func_name=func_name))
 
         # Metacognitive tool-channel drain — fires once per batch on the
-        # last result. Queued by _queue_tool_advisory from the
-        # tool_error and repeat detection paths just before this loop.
+        # last result.  Queued by _queue_tool_advisory from the
+        # tool_error / repeat detection paths just before this loop.
+        # Lands on the tool message dict's ``_reminders`` side-channel
+        # (caller's responsibility) so it stays out of persisted content
+        # and rides the wire only via the transient-copy splice.
         if is_last_in_batch and self._pending_tool_advisories:
-            from turnstone.core.tool_advisory import MetacognitiveAdvisory
-
             drained = list(self._pending_tool_advisories)
             self._pending_tool_advisories.clear()
-            advisories.extend(
-                MetacognitiveAdvisory(nudge_type=nt, message=text) for nt, text in drained
-            )
-            self._emit_nudge_ping(nt for nt, _ in drained)
+            metacog_reminders.extend({"type": nt, "text": text} for nt, text in drained)
 
         # Drain queued user messages on the last result in the batch.
         # Attachment-bearing items fall back to a full multipart user
@@ -3834,7 +3951,7 @@ class ChatSession:
                 if att_ids:
                     attachment_items.append((queue_msg_id, msg, priority, att_ids))
                 else:
-                    advisories.append(UserInterjection(message=msg, priority=priority))
+                    persistent.append(UserInterjection(message=msg, priority=priority))
             if attachment_items:
                 from turnstone.core.tool_advisory import PRIORITY_IMPORTANT
 
@@ -3845,7 +3962,7 @@ class ChatSession:
                     )
                     self._append_user_turn(text, resolved, send_id=queue_msg_id)
 
-        return advisories
+        return persistent, metacog_reminders
 
     # -- Two-phase tool execution -----------------------------------------------
     #
@@ -3974,7 +4091,14 @@ class ChatSession:
                 )
                 return item["call_id"], item["error"]
             if item.get("denied"):
-                return item["call_id"], item.get("denial_msg", "Denied by user")
+                msg = item.get("denial_msg", "Denied by user")
+                self._report_tool_result(
+                    item["call_id"],
+                    item.get("func_name", "unknown"),
+                    msg,
+                    is_error=True,
+                )
+                return item["call_id"], msg
             try:
                 result: tuple[str, str | list[dict[str, Any]]] = item["execute"](item)
                 return result
@@ -5377,59 +5501,52 @@ class ChatSession:
     def _queue_user_advisory(self, nudge_type: str, text: str) -> None:
         """Queue a metacognitive nudge for the next user turn.
 
-        Drains in ``_append_user_turn`` as a ``<system-reminder>`` block
-        appended to the user message body. Used for nudges that respond
-        to user behaviour: ``correction``, ``denial``, ``resume``,
+        Drains in ``_append_user_turn`` onto the user message dict's
+        ``_reminders`` side-channel.  Used for nudges that respond to
+        user behaviour: ``correction``, ``denial``, ``resume``,
         ``start``, ``completion``.
         """
         self._pending_user_advisories.append((nudge_type, text))
 
-    def _splice_pending_user_advisories(self, user_msg: dict[str, Any]) -> None:
-        """Drain ``_pending_user_advisories`` into *user_msg*'s content.
+    def _attach_pending_user_reminders(self, user_msg: dict[str, Any]) -> None:
+        """Drain ``_pending_user_advisories`` onto *user_msg*'s ``_reminders``
+        sibling key (a side-channel, never inside ``content``).
 
-        Mutates *user_msg* in place — the caller appends it after.
-        Renders each queued nudge as a ``<system-reminder>`` block
-        (same envelope as ``wrap_tool_result``) and attaches them to
-        the trailing edge of the user content. Every text segment in
-        the user content is passed through ``escape_wrapper_tags``
-        first so a user typing literal ``<system-reminder>`` cannot
-        fabricate an envelope the model would treat as a
-        Turnstone-issued reminder. For attachment-bearing turns the
-        blocks land on the trailing text part so they stay glued to
-        the same multipart turn.
+        Mutates *user_msg* in place — the caller appends it after.  The
+        rendered ``<system-reminder>`` envelope is built later in
+        ``_apply_reminders_for_provider`` against a transient copy, so
+        the model still sees the reminder spliced into ``content`` at
+        the wire boundary while ``self.messages`` and every downstream
+        consumer (UI replay, compaction, title gen, channel adapters,
+        DB) see clean user text.
+
+        ``_reminders`` rides the leading-underscore convention used by
+        other internal sibling metadata (``_attachments_meta``,
+        ``_provider_content``); ``sanitize_messages`` strips it before
+        the wire on its own pass.
+
+        Also fires the live ``on_user_reminder`` UI hook so any open
+        SSE consumers (other browser tabs, CLI mirrors, eventual
+        channel adapters) can render the reminder bubble in lockstep
+        with the originating tab's optimistic render.  Hook failures
+        are logged and swallowed: the side-channel write is the
+        load-bearing op, and a UI implementation throwing here must
+        not abort the user's send (which would otherwise drop both the
+        user message and the queued nudges).
         """
         if not self._pending_user_advisories:
             return
-        from turnstone.core.tool_advisory import escape_wrapper_tags, render_system_reminder
 
         items = list(self._pending_user_advisories)
         self._pending_user_advisories.clear()
 
-        block = "\n\n" + "\n\n".join(render_system_reminder(text) for _, text in items)
-        content = user_msg["content"]
-        if isinstance(content, str):
-            user_msg["content"] = escape_wrapper_tags(content) + block
-        else:
-            text_parts = [p for p in content if isinstance(p, dict) and p.get("type") == "text"]
-            for part in text_parts:
-                part["text"] = escape_wrapper_tags(part.get("text", ""))
-            if text_parts:
-                text_parts[-1]["text"] = text_parts[-1]["text"] + block
-            else:
-                content.append({"type": "text", "text": block})
+        reminders = [{"type": nudge_type, "text": text} for nudge_type, text in items]
+        user_msg["_reminders"] = reminders
 
-        self._emit_nudge_ping(nudge_type for nudge_type, _ in items)
-
-    def _emit_nudge_ping(self, types: Iterable[str]) -> None:
-        """Surface the ``[metacognition: nudge injected — …]`` UI line.
-
-        Centralised so both drain sites (tool channel via
-        ``_collect_advisories``, user channel via
-        ``_splice_pending_user_advisories``) emit the same wording.
-        """
-        joined = ", ".join(types)
-        if joined:
-            self.ui.on_info(f"{GRAY}[metacognition: nudge injected — {joined}]{RESET}")
+        try:
+            self.ui.on_user_reminder(reminders)
+        except Exception:
+            log.warning("ui.on_user_reminder failed; reminder still attached", exc_info=True)
 
     def _queue_tool_advisory(self, nudge_type: str, text: str) -> None:
         """Queue a metacognitive nudge for the next tool-result batch.
@@ -5441,6 +5558,95 @@ class ChatSession:
         """
         self._pending_tool_advisories.append((nudge_type, text))
 
+    def _apply_post_execute_advisories(
+        self,
+        tool_calls: list[dict[str, Any]],
+        results: list[tuple[str, str | list[dict[str, Any]]]],
+    ) -> None:
+        """Run repeat detection + tool-error nudge over a freshly-executed batch.
+
+        Mutates *results* in place when an identical-repeat warning is
+        appended to a tool's text output.  Updates ``self._repeat_detector``,
+        ``self._pending_tool_advisories``, and ``self._metacog_state``
+        (cooldown timestamp via ``should_nudge``).  The operator-visible
+        signal is the themed ``tool_reminder`` bubble below the tool
+        block — emitted by the per-result loop downstream when the
+        drained metacog reminders attach to the tool message dict's
+        ``_reminders`` side-channel.
+
+        Repeat detection's job is to nudge a flaky local model out of a
+        loop where it keeps making the same tool call ("``bash(cmd='echo
+        test')`` × 3" being the canonical example).  It fires on the
+        consecutive-streak signal alone, with no regard for the tool's
+        success / failure / output content — same (name, args) for N
+        turns in a row is by definition stuck.  ``RepeatDetector.record``
+        already resets the streak on any different signature, so an
+        intervening tool call (read, write, anything different) breaks
+        the streak naturally without an explicit clear here.
+
+        ``_tool_error_flags`` is the authoritative is_error signal —
+        consumed below for the tool-error nudge gate; the per-result
+        loop in ``_run_loop`` ``.pop``s it after this returns.
+        """
+        # Repeat detection: warn when a tool is called with identical
+        # args N times in a row.  Independent of success/failure — the
+        # stuck-loop pattern is sig-driven, not state-driven.  JSON
+        # outputs (MCP structured results) are tracked but exempt from
+        # the inline warning text (appending text would corrupt the
+        # payload).
+        _tc_by_id = {c["id"]: c for c in tool_calls}
+        _repeat_detected = False
+
+        for i, (tc_id, output) in enumerate(results):
+            tc = _tc_by_id.get(tc_id)
+            if tc and isinstance(output, str):
+                raw = tc["function"]["name"] + ":" + tc["function"]["arguments"]
+                sig = hashlib.sha256(raw.encode()).hexdigest()
+                is_json = output.lstrip().startswith(("{", "["))
+                if self._repeat_detector.record(sig):
+                    _repeat_detected = True
+                    if not is_json:
+                        output += (
+                            "\n\n⚠ Warning: this is an identical repeat of a "
+                            "previous tool call. The result is the same. "
+                            "Try a different approach."
+                        )
+                        results[i] = (tc_id, output)
+                    # The themed ``tool_reminder`` bubble below the tool
+                    # block carries the operator-visible signal; the
+                    # tool-name context comes from the visible tool
+                    # block immediately above the bubble, so a separate
+                    # diagnostic info line would just duplicate it.
+
+        if _repeat_detected:
+            # Reset so the model gets a clean slate after the warning.
+            # If it repeats again, a new warning fires.
+            self._repeat_detector.clear()
+            if self._mem_cfg.nudges and should_nudge(
+                "repeat",
+                self._metacog_state,
+                message_count=len(self.messages),
+                cooldown_secs=self._mem_cfg.nudge_cooldown,
+            ):
+                self._queue_tool_advisory("repeat", format_nudge("repeat"))
+
+        # Tool-error nudge — queued so the MetacognitiveAdvisory rides
+        # the same _collect_advisories drain pass as guard findings and
+        # user interjections.  Cooldown gating in should_nudge keeps
+        # this to one nudge per batch even with many failing tools.
+        if (
+            self._mem_cfg.nudges
+            and any(self._tool_error_flags.get(tc_id) for tc_id, _ in results)
+            and should_nudge(
+                "tool_error",
+                self._metacog_state,
+                message_count=len(self.messages),
+                memory_count=self._visible_memory_count(),
+                cooldown_secs=self._mem_cfg.nudge_cooldown,
+            )
+        ):
+            self._queue_tool_advisory("tool_error", format_nudge("tool_error"))
+
     # ------------------------------------------------------------------
     # Coordinator tools — reachable only when ``kind == "coordinator"``.
     # All six dispatch through ``self._coord_client`` which is None when
@@ -9203,7 +9409,7 @@ class ChatSession:
         elif cmd == "/clear":
             self.messages.clear()
             self._read_files.clear()
-            self._recent_tool_sigs.clear()
+            self._repeat_detector.clear()
             self._last_usage = None
             self._calibrated_msg_count = 0
             self._msg_tokens = []
@@ -9214,7 +9420,7 @@ class ChatSession:
 
             self.messages.clear()
             self._read_files.clear()
-            self._recent_tool_sigs.clear()
+            self._repeat_detector.clear()
             self._last_usage = None
             self._calibrated_msg_count = 0
             self._msg_tokens = []

turnstone/core/session_manager.py

@@ -13,6 +13,7 @@ import contextlib
 import threading
 import time
 import uuid
+from datetime import UTC, datetime, timedelta
 from typing import TYPE_CHECKING, Any, Protocol
 
 from turnstone.core.log import get_logger
@@ -28,6 +29,22 @@ if TYPE_CHECKING:
 log = get_logger(__name__)
 
 
+# Maps each workstream kind to the ``services.service_type`` its hosting
+# process registers under.  Used by ``SessionManager.close_idle`` pass 2
+# to enumerate live peer processes for orphan-reaper liveness scoping.
+# Server processes register as ``("server", node_id, ...)`` (see
+# ``turnstone/server.py``); the console process as ``("console",
+# "console", ...)`` (see ``turnstone/console/server.py``).  Deriving from
+# kind here removes a duplicated-config footgun: any caller that builds
+# a ``SessionManager`` automatically gets the correct service_type for
+# its kind, with no risk of miswiring INTERACTIVE→"console" or vice
+# versa.
+_KIND_SERVICE_TYPE: dict[WorkstreamKind, str] = {
+    WorkstreamKind.INTERACTIVE: "server",
+    WorkstreamKind.COORDINATOR: "console",
+}
+
+
 class SessionKindAdapter(Protocol):
     """Per-kind construction + cleanup policies the shared ``SessionManager`` delegates to.
 
@@ -197,13 +214,21 @@ class SessionManager:
         # manager never reads them.
         self._active_id: str | None = None
         self._eviction_count: int = 0
-        # Optional state-change observer. The CLI sets this to a
-        # callback that prints a background-attention notification
-        # when a non-focused workstream transitions to ATTENTION.
-        # Web/coord paths use the event_emitter's emit_state for their
-        # own fan-out; this is a second, manager-level hook for callers
-        # that don't consume SSE.
-        self._on_state_change: Callable[[str, WorkstreamState], None] | None = None
+        # State-change subscribers. Multi-subscriber to support the
+        # CLI's background-attention notification AND the in-process
+        # ``SameNodeChildSource`` strategy that delivers child
+        # workstream state changes to a parent's UI without going
+        # through the cluster bus. Each callback fires under
+        # exception-suppression so one failing subscriber doesn't
+        # block the others. Subscribers register via
+        # :meth:`subscribe_to_state`. ``_state_subscribers_lock``
+        # guards mutation + snapshot — set_state copies the list
+        # under the lock then iterates the snapshot unlocked so a
+        # slow subscriber doesn't block subscribe/unsubscribe (and
+        # so concurrent subscribe/unsubscribe during a state event
+        # can't shift the iterator's index — caught by /review bug-1).
+        self._state_subscribers: list[Callable[[str, WorkstreamState], None]] = []
+        self._state_subscribers_lock = threading.Lock()
 
     # ------------------------------------------------------------------
     # Properties
@@ -217,6 +242,16 @@ class SessionManager:
     def kind(self) -> WorkstreamKind:
         return self._adapter.kind
 
+    @property
+    def _service_type(self) -> str | None:
+        """``services.service_type`` this manager's hosting process registers
+        under, derived from its ``kind``.  Used by ``close_idle`` pass 2 to
+        enumerate live peer processes.  Returns ``None`` for kinds that have
+        no production service mapping (only the two existing kinds map
+        today; ``None`` would be a marker for a future kind without a
+        clustered hosting model)."""
+        return _KIND_SERVICE_TYPE.get(self.kind)
+
     @property
     def count(self) -> int:
         with self._lock:
@@ -604,6 +639,22 @@ class SessionManager:
                 # last close(). The next set_state() call syncs it
                 # naturally; writing 'idle' here could race a concurrent
                 # close() that writes 'closed' under self._lock.
+                #
+                # Bump only ``updated`` (no state write) so this row's
+                # timestamp is fresh against the orphan-reaper cutoff —
+                # otherwise a concurrent close_idle pass-2 in this same
+                # process could clobber a freshly-rehydrated row whose
+                # ``updated`` is older than the cutoff.  The pure-
+                # timestamp write is safe against concurrent close()
+                # because close still wins on the state column.
+                try:
+                    self._storage.touch_workstream(ws_id)
+                except Exception:
+                    log.debug(
+                        "session_mgr.touch_workstream_failed ws=%s",
+                        ws_id[:8],
+                        exc_info=True,
+                    )
                 if self._event_emitter is not None:
                     self._event_emitter.emit_rehydrated(ws)
                 return ws
@@ -773,9 +824,36 @@ class SessionManager:
                     log.debug("session_mgr.state_update_failed ws=%s", ws_id[:8], exc_info=True)
         if self._event_emitter is not None:
             self._event_emitter.emit_state(ws, state)
-        if self._on_state_change is not None:
+        # Snapshot under the subscribers lock so concurrent
+        # subscribe / unsubscribe can't shift the iterator's index
+        # mid-dispatch (skipping or repeating callbacks). Iterate
+        # the snapshot WITHOUT the lock so a slow callback doesn't
+        # block subscribe / unsubscribe.
+        with self._state_subscribers_lock:
+            subscribers = list(self._state_subscribers)
+        for callback in subscribers:
             with contextlib.suppress(Exception):
-                self._on_state_change(ws_id, state)
+                callback(ws_id, state)
+
+    # ------------------------------------------------------------------
+    # State-change subscription
+    # ------------------------------------------------------------------
+
+    def subscribe_to_state(self, callback: Callable[[str, WorkstreamState], None]) -> None:
+        """Register ``callback`` to fire on every workstream state change.
+
+        Multiple subscribers are supported and fire in registration order.
+        Each callback is wrapped in exception-suppression so a failing
+        subscriber doesn't block the others. Use
+        :meth:`unsubscribe_from_state` to remove.
+        """
+        with self._state_subscribers_lock:
+            self._state_subscribers.append(callback)
+
+    def unsubscribe_from_state(self, callback: Callable[[str, WorkstreamState], None]) -> None:
+        """Remove a previously-registered state-change callback. No-op if absent."""
+        with self._state_subscribers_lock, contextlib.suppress(ValueError):
+            self._state_subscribers.remove(callback)
 
     def cancel(self, ws_id: str) -> bool:
         """Cancel in-flight generation and unblock any pending approval / plan.
@@ -804,15 +882,52 @@ class SessionManager:
     def close_idle(self, max_age_seconds: float) -> list[str]:
         """Close IDLE workstreams inactive for more than ``max_age_seconds``.
 
-        Returns the list of closed ws_ids. Unlike the old WSM version,
-        this does NOT skip the last workstream — the default-startup
-        relic is gone, callers can handle the 0-workstream case.
+        Two-pass shape:
+
+        - Pass 1 (in-memory): close loaded ``IDLE`` rows whose
+          ``ws.last_active`` (monotonic) is past timeout.  Closes only
+          ``IDLE`` so legitimately-attentive rows (waiting for user
+          response) stay live.
+        - Pass 2 (DB orphans): bulk-close DB rows of this manager's
+          kind whose ``updated`` is past the wall-clock cutoff and
+          which are not currently loaded.  This catches workstreams
+          left behind by prior process incarnations — a process crash
+          /restart leaves rows in non-terminal states forever
+          otherwise.  Closes ``idle/thinking/attention/running``
+          because any matching row is by definition not loaded by any
+          live process and cannot be in a live interaction.
+
+          **Liveness scoping** (the rendezvous router's primitive
+          since PR #384): when ``self._service_type`` resolves to a
+          known service type — both production kinds do — pass 2
+          calls ``storage.list_services`` to enumerate peer processes
+          with recent heartbeats and protects rows whose ``node_id``
+          matches a live ``service_id`` from reap, even when *this*
+          manager is on a different node.  This is essential for
+          containerized deployments with dynamic hostnames: dead-pod
+          rows fall out of the live set after the heartbeat window
+          and become reapable; alive-pod rows stay protected as long
+          as the owner heartbeats.  A future kind with no service
+          registration would resolve ``_service_type`` to ``None``
+          and skip the live-services lookup (single-process / CLI).
+
+          **Conservative fallback**: if ``list_services`` raises,
+          pass 2 is skipped entirely this tick — never reap when
+          liveness state is unknown.  Pass 1 still runs.  Next tick
+          retries the lookup.
+
+        Returns the combined list of closed ws_ids (in-memory first,
+        then DB orphans).  Pass 1 emits ``ws_closed``; pass 2 does
+        not, because never-loaded rows have no SSE listeners
+        expecting them.
 
         Atomic pop per victim under ``self._lock`` (bug-5): a pending
         tool result can flip state IDLE→RUNNING between the snapshot
         and the close, so the state test + pop must run together.
         Batches every pop under one ``self._lock`` acquisition (perf-5)
-        rather than locking once per victim.
+        rather than locking once per victim.  The DB pass runs OUTSIDE
+        ``self._lock`` — only a brief lock to snapshot loaded keys —
+        so a slow UPDATE doesn't block create/get/set_state.
         """
         now = time.monotonic()
         popped: list[Workstream] = []
@@ -853,6 +968,63 @@ class SessionManager:
             if self._event_emitter is not None:
                 self._event_emitter.emit_closed(ws.id, name=ws.name)
             closed_ids.append(ws.id)
+
+        # Pass 2: reap DB orphans of this kind older than the cutoff.
+        # Snapshot loaded keys under self._lock briefly so a concurrent
+        # create/load doesn't get its row clobbered by the UPDATE; release
+        # before the DB call.
+        #
+        # Liveness scoping uses ``services.last_heartbeat`` — the same
+        # primitive the rendezvous router (PR #384) uses for routing.  A
+        # row's ``node_id`` is stamped at create time and never updated;
+        # in containerized deployments with dynamic hostnames the dead
+        # pod's ``node_id`` points at a service that's no longer
+        # heartbeating, so the row falls through to reap.  Conversely,
+        # rows whose ``node_id`` matches a heartbeating service are
+        # protected even when *this* manager is on a different node —
+        # the alive peer may legitimately have them loaded.
+        with self._lock:
+            loaded = list(self._workstreams.keys())
+        cutoff = (datetime.now(UTC) - timedelta(seconds=max_age_seconds)).strftime(
+            "%Y-%m-%dT%H:%M:%S"
+        )
+        live_node_ids: list[str] | None = None
+        skip_pass_2 = False
+        if self._service_type is not None:
+            try:
+                live_services = self._storage.list_services(self._service_type)
+                live_node_ids = [
+                    str(svc["service_id"]) for svc in live_services if svc.get("service_id")
+                ]
+            except Exception:
+                # Conservative fallback: skip pass 2 entirely this tick
+                # so we can't accidentally reap rows whose owners we
+                # failed to enumerate.  Next tick retries.
+                log.debug(
+                    "session_mgr.list_services_failed kind=%s",
+                    self.kind.value,
+                    exc_info=True,
+                )
+                skip_pass_2 = True
+        orphans: list[str] = []
+        if not skip_pass_2:
+            try:
+                orphans = self._storage.bulk_close_stale_orphans(
+                    self.kind, cutoff, loaded, live_node_ids=live_node_ids
+                )
+            except Exception:
+                log.debug(
+                    "session_mgr.bulk_close_orphans_failed kind=%s",
+                    self.kind.value,
+                    exc_info=True,
+                )
+        if orphans:
+            log.info(
+                "session_mgr.bulk_close_orphans count=%d kind=%s",
+                len(orphans),
+                self.kind.value,
+            )
+        closed_ids.extend(orphans)
         return closed_ids
 
     def _close_if_idle_locked(self, ws_id: str) -> Workstream | None:

turnstone/core/session_routes.py

@@ -394,6 +394,15 @@ class SessionEndpointConfig:
     # separate ``/history`` endpoint and doesn't render the per-tab
     # status bar). Kinds that don't need pre-replay wire ``None``.
     events_replay: EventsReplay | None = None
+    # async (ws, ui, request) -> None. Kind-specific async pre-step
+    # the lifted ``events`` body awaits BEFORE iterating
+    # ``events_replay``. Lets a kind move blocking storage I/O off
+    # the event loop (via ``asyncio.to_thread``) and stash results
+    # on ``request.state`` for the sync replay generator to read.
+    # Interactive uses it to pre-load intent_verdicts +
+    # output_assessments so ``_build_history``'s decoration stays
+    # off the hot path. Coord wires ``None``.
+    events_replay_prepare: Callable[..., Any] | None = None
     # (request) -> Executor for the SSE live-loop's blocking
     # ``queue.get`` wait. Interactive returns the dedicated
     # ``request.app.state.sse_executor`` (200-thread pool) so SSE
@@ -1203,6 +1212,8 @@ def make_open_handler(
     """
 
     async def open_ws(request: Request) -> Response:
+        import asyncio
+
         if cfg.permission_gate is not None:
             err = cfg.permission_gate(request)
             if err is not None:
@@ -1304,7 +1315,14 @@ def make_open_handler(
         # emit_rehydrated path).
         if cfg.open_post_load is not None:
             try:
-                cfg.open_post_load(request, ws)
+                # Off-loop: interactive's post_load runs the sync
+                # ``_build_history`` (storage I/O for verdict
+                # indexes + message reconstruction) — without the
+                # to_thread wrap this blocks the event loop on every
+                # workstream open, mirroring the SSE replay path
+                # that's already protected via
+                # ``events_replay_prepare``.
+                await asyncio.to_thread(cfg.open_post_load, request, ws)
             except Exception:
                 # Post-load is observational — never let a hook bug
                 # block the open. Log + continue.
@@ -1454,6 +1472,20 @@ def make_events_handler(cfg: SessionEndpointConfig) -> Handler:
                 # 500-slot cap on a chatty mid-generation workstream)
                 # while replay was being built.
                 if replay_cb is not None:
+                    # Kind-specific async prep — runs before the sync
+                    # replay generator iterates so blocking storage
+                    # I/O lands in the executor pool rather than the
+                    # event loop's hot path. Interactive uses this
+                    # to pre-load verdict indexes; coord skips.
+                    if cfg.events_replay_prepare is not None:
+                        try:
+                            await cfg.events_replay_prepare(ws, ui, request)
+                        except Exception:
+                            log.debug(
+                                "ws.events.replay_prepare_failed ws=%s",
+                                ws_id[:8],
+                                exc_info=True,
+                            )
                     try:
                         for ev in replay_cb(ws, ui, request):
                             yield {"data": json.dumps(ev)}
@@ -2240,6 +2272,34 @@ def make_history_handler(cfg: SessionEndpointConfig) -> Handler:
                 messages = await asyncio.to_thread(storage.load_messages, ws_id, limit=limit)
             except Exception:
                 log.debug("ws.history.load_failed ws=%s", ws_id[:8], exc_info=True)
+        # Audit-trail decoration — attach persisted intent_verdict and
+        # output_assessment data to each assistant.tool_calls entry so
+        # the dashboard's history replay paints the same verdict pills
+        # / output-warning bubbles the live SSE path shows.  Both
+        # storage queries are off-loop via ``to_thread``.  Best-effort:
+        # any failure leaves messages undecorated — replay degrades to
+        # the pre-decoration shape rather than 500-ing.
+        if messages:
+            try:
+                from turnstone.core.history_decoration import (
+                    decorate_history_messages,
+                    load_verdict_indexes,
+                )
+
+                indexes = await asyncio.to_thread(load_verdict_indexes, ws_id)
+                decorate_history_messages(messages, indexes[0], indexes[1])
+            except Exception:
+                # Operationally interesting: a persistent decoration
+                # failure (missing migration, driver mismatch, schema
+                # drift) silently strips verdict pills + output
+                # warnings from every reload of every workstream.
+                # Log at warning so it surfaces in normal log review
+                # rather than only when DEBUG is on.
+                log.warning(
+                    "ws.history.decoration_failed ws=%s",
+                    ws_id[:8],
+                    exc_info=True,
+                )
         return JSONResponse({"ws_id": ws_id, "messages": messages})
 
     return history

turnstone/core/session_ui_base.py

@@ -41,6 +41,7 @@ log = get_logger(__name__)
 # from bloating memory.
 _DEFAULT_LISTENER_QUEUE_MAX = 500
 
+
 # Cap on the per-turn assistant content accumulator. The accumulator
 # is piggybacked onto the ``ws_state:idle`` broadcast payload so the
 # cluster collector / dashboard can render the freshly-emitted assistant
@@ -327,6 +328,11 @@ class SessionUIBase:
                 "always": bool(always),
             }
         )
+        # Kind-specific cross-stream broadcast — ConsoleCoordinatorUI
+        # overrides to push onto the cluster bus so a coord parent's
+        # tree UI clears the pending-approval pill in lockstep with
+        # the actual decision. Stage 3 Step 4.
+        self._broadcast_approval_resolved(approved, feedback, always=always)
         self._approval_event.set()
 
     @staticmethod
@@ -579,6 +585,20 @@ class SessionUIBase:
             "judge_pending": judge_pending,
         }
         self._enqueue(self._pending_approval)
+        # Cross-stream broadcast — push the items via the cluster bus
+        # so a coord parent's tree UI can render the inline approve/deny
+        # block without waiting for a bulk fetch. Without this, the
+        # bulk fetch races with this assignment: the state transition
+        # to ATTENTION fires upstream BEFORE approve_tools runs (see
+        # session.py:_emit_state("attention") preceding ui.approve_tools),
+        # so a bulk fetch landing in the ~50-200ms window between
+        # _emit_state and this point sees ``_pending_approval=None``
+        # and returns ``pending_approval_detail: null``. The 5s TTL
+        # then locks the coord row on a "loading" placeholder until
+        # the next state event triggers a refresh — which never comes
+        # while parked on _approval_event.wait. The push path
+        # eliminates the race.
+        self._broadcast_approve_request(self._pending_approval)
         if not self._approval_event.wait(timeout=self._APPROVAL_WAIT_TIMEOUT):
             # Approval timed out (e.g., user disconnected). Deny via
             # resolve_approval so verdicts and state are updated consistently.
@@ -632,6 +652,12 @@ class SessionUIBase:
                     del self._llm_verdicts[oldest_key]
                 self._llm_verdicts[call_id] = verdict
         self._enqueue({"type": "intent_verdict", **verdict})
+        # Kind-specific cross-stream broadcast — ConsoleCoordinatorUI
+        # overrides to push onto the cluster bus so a coord parent's
+        # tree UI sees the verdict without polling. Default is no-op
+        # (the per-ws ``_enqueue`` above already covers WebUI's own
+        # SSE listeners). Stage 3 Step 4.
+        self._broadcast_intent_verdict(verdict)
         self._persist_intent_verdict(verdict)
         # Decision check + either queue or flag-for-persist happen
         # under ONE lock acquisition so resolve_approval can't swap-
@@ -1293,6 +1319,42 @@ class SessionUIBase:
     def on_error(self, message: str) -> None:
         self._enqueue({"type": "error", "message": message})
 
+    def on_user_reminder(self, reminders: list[dict[str, str]]) -> None:
+        """Surface a metacognitive user-channel nudge as its own UI
+        element.
+
+        Reminders live on the user message dict's ``_reminders``
+        side-channel and are spliced into ``content`` only at the
+        provider boundary; this event is what lets every connected
+        SSE consumer (other browser tabs, CLI mirrors, future channel
+        adapters) render the reminder bubble in lockstep with the
+        originating tab.  The history-replay path surfaces the same
+        shape via ``_build_history`` so a tab reconnecting later
+        renders the same bubble.
+        """
+        self._enqueue({"type": "user_reminder", "reminders": reminders})
+
+    def on_tool_reminder(self, reminders: list[dict[str, str]], tool_call_id: str) -> None:
+        """Surface a metacognitive tool-channel nudge (``tool_error`` /
+        ``repeat``) as its own UI element below the tool result that
+        triggered it.
+
+        Tool-channel reminders ride the same ``_reminders``
+        side-channel pattern as the user channel — kept out of
+        ``content`` so compaction / title-gen / channel adapters never
+        see the nudge text, spliced into the wire only via
+        ``_apply_reminders_for_provider``.  ``tool_call_id`` is the
+        anchor the frontend uses to render the bubble below the
+        specific tool result that triggered the batch's reminder.
+        """
+        self._enqueue(
+            {
+                "type": "tool_reminder",
+                "reminders": reminders,
+                "tool_call_id": tool_call_id,
+            }
+        )
+
     # ------------------------------------------------------------------
     # Broadcast hooks — kind-specific transport.
     #
@@ -1315,6 +1377,42 @@ class SessionUIBase:
         Default: no-op. Subclasses override.
         """
 
+    def _broadcast_intent_verdict(self, verdict: dict[str, Any]) -> None:  # noqa: ARG002 — hook stub
+        """Fan an LLM intent-judge verdict out to the kind's transport.
+
+        Default: no-op. ``ConsoleCoordinatorUI`` overrides to push a
+        ``intent_verdict`` event onto the cluster bus so the parent
+        coordinator's tree UI can render the risk pill + verdict
+        result without polling. Stage 3 Step 4: hook only — the
+        cluster-bus event class lands in Step 5.
+        """
+
+    def _broadcast_approval_resolved(
+        self,
+        approved: bool,  # noqa: ARG002 — hook stub
+        feedback: str | None = None,  # noqa: ARG002 — hook stub
+        *,
+        always: bool = False,  # noqa: ARG002 — hook stub
+    ) -> None:
+        """Fan an ``approval_resolved`` decision out to the kind's transport.
+
+        Default: no-op. ``ConsoleCoordinatorUI`` overrides to push to
+        the cluster bus so the parent coordinator's tree UI can clear
+        the pending-approval pill in sync with the actual decision.
+        """
+
+    def _broadcast_approve_request(self, detail: dict[str, Any]) -> None:  # noqa: ARG002 — hook stub
+        """Fan an ``approve_request`` payload out to the kind's transport.
+
+        Default: no-op. ``WebUI`` and ``ConsoleCoordinatorUI`` override
+        to push the items list (the same dict that landed in
+        ``_pending_approval``) onto their respective transports. The
+        push path eliminates the bulk-fetch race that otherwise
+        leaves coord rows stuck on a loading placeholder when the
+        bulk fetch lands in the gap between the state transition to
+        ATTENTION and ``_pending_approval`` being set.
+        """
+
     # ------------------------------------------------------------------
     # State-broadcast snapshot helper
     # ------------------------------------------------------------------

turnstone/core/storage/_postgresql.py

@@ -97,7 +97,7 @@ from turnstone.core.storage._utils import sanitize_text
 from turnstone.core.storage._utils import (
     scan_skill_content as _scan_skill_content,
 )
-from turnstone.core.workstream import WorkstreamKind
+from turnstone.core.workstream import BULK_CLOSE_STATE_VALUES, WorkstreamKind
 
 log = get_logger(__name__)
 
@@ -595,6 +595,57 @@ class PostgreSQLBackend:
             )
             conn.commit()
 
+    def bulk_close_stale_orphans(
+        self,
+        kind: WorkstreamKind | str,
+        cutoff: str,
+        exclude_ws_ids: list[str],
+        live_node_ids: list[str] | None = None,
+    ) -> list[str]:
+        norm_kind = WorkstreamKind(kind).value
+        now = datetime.now(UTC).strftime("%Y-%m-%dT%H:%M:%S")
+        stmt = (
+            sa.update(workstreams)
+            .where(
+                workstreams.c.kind == norm_kind,
+                workstreams.c.state.in_(BULK_CLOSE_STATE_VALUES),
+                workstreams.c.updated < cutoff,
+            )
+            .values(state="closed", updated=now)
+            .returning(workstreams.c.ws_id)
+        )
+        # Protect rows whose owning process is still heartbeating in the
+        # services table (rendezvous router's liveness primitive).  NULL
+        # node_id rows have no owner identity — always eligible.  The
+        # ``and live_node_ids`` short-circuits both ``None`` (skip the
+        # filter entirely — single-process / operator backfill) and ``[]``
+        # (no nodes alive — every row unprotected, no extra predicate
+        # needed since absence equals match-all).
+        if live_node_ids is not None and live_node_ids:
+            stmt = stmt.where(
+                sa.or_(
+                    workstreams.c.node_id.is_(None),
+                    ~workstreams.c.node_id.in_(live_node_ids),
+                )
+            )
+        if exclude_ws_ids:
+            # Skip ``NOT IN ()`` when nothing to exclude — keeps the SQL clean
+            # and avoids SQLAlchemy's empty-collection warning.
+            stmt = stmt.where(~workstreams.c.ws_id.in_(exclude_ws_ids))
+        with self._conn() as conn:
+            result = conn.execute(stmt)
+            ids = [row[0] for row in result]
+            conn.commit()
+            return ids
+
+    def touch_workstream(self, ws_id: str) -> None:
+        now = datetime.now(UTC).strftime("%Y-%m-%dT%H:%M:%S")
+        with self._conn() as conn:
+            conn.execute(
+                sa.update(workstreams).where(workstreams.c.ws_id == ws_id).values(updated=now)
+            )
+            conn.commit()
+
     def update_workstream_name(self, ws_id: str, name: str) -> None:
         now = datetime.now(UTC).strftime("%Y-%m-%dT%H:%M:%S")
         with self._conn() as conn:

turnstone/core/storage/_protocol.py

@@ -431,6 +431,68 @@ class StorageBackend(Protocol):
         """Update a workstream's state and bump updated timestamp."""
         ...
 
+    def bulk_close_stale_orphans(
+        self,
+        kind: WorkstreamKind | str,
+        cutoff: str,
+        exclude_ws_ids: list[str],
+        live_node_ids: list[str] | None = None,
+    ) -> list[str]:
+        """Close DB-side workstream rows of *kind* whose state is in
+        ``BULK_CLOSE_STATE_VALUES`` and whose ``updated`` is lex-older than
+        *cutoff*, excluding rows currently loaded in memory.  Sets
+        ``state='closed'`` and bumps ``updated``.  Returns the list of ws_ids
+        actually transitioned.
+
+        ``cutoff`` is a UTC ``YYYY-MM-DDTHH:MM:SS`` string matching the on-disk
+        format ``update_workstream_state`` writes — lex compare is safe for
+        same-offset timestamps.  Empty ``exclude_ws_ids`` means no exclusion.
+
+        ``live_node_ids`` is the set of ``services.service_id`` values whose
+        ``last_heartbeat`` is recent (i.e. owning processes still alive);
+        rows whose ``node_id`` matches one of these are protected because
+        their owning process may legitimately have them loaded on another
+        worker.  ``None`` skips the filter entirely (single-process / tests
+        / operator backfill).  Empty list ``[]`` treats every node as dead —
+        useful when operator scripts want to reap regardless of liveness.
+
+        Rows with ``NULL`` ``node_id`` are always eligible: they have no
+        meaningful owner identity, so age alone gates the reap.
+
+        Liveness scoping replaces an earlier ``node_id == self`` heuristic.
+        That heuristic broke in the post-rendezvous-routing world (PR #384):
+        ``workstreams.node_id`` is stamped at create time and never updated,
+        so dead-pod orphans in containerized deployments with dynamic
+        hostnames couldn't be reclaimed.  ``services.last_heartbeat`` is the
+        rendezvous router's authoritative liveness primitive — using it here
+        keeps reap scoping aligned with routing.
+
+        Asymmetric with ``SessionManager.close_idle``'s in-memory pass on
+        purpose: that pass closes only ``IDLE`` (legitimately-attentive rows
+        stay), this method closes the broader ``BULK_CLOSE_STATE_VALUES`` set
+        because any row matching here is by definition not loaded by any
+        live process and cannot be in a live interaction.
+        """
+        ...
+
+    def touch_workstream(self, ws_id: str) -> None:
+        """Bump a workstream row's ``updated`` timestamp without touching its
+        state.
+
+        Used by ``SessionManager.open()`` on cold rehydrate so a freshly-
+        loaded row's ``updated`` can't be older than the orphan-reaper cutoff
+        — protects against a same-process race where a parallel
+        ``close_idle`` pass-2 snapshots loaded keys after the storage read
+        but before the in-memory install.  Distinct from
+        ``update_workstream_state(ws_id, current_state)`` because the
+        rehydrate path explicitly avoids a state write (see the
+        ``open()`` no-DB-state-flip-on-resurrect comment): a state write
+        could race a concurrent ``close()`` and resurrect a closed row.
+        Bumping only ``updated`` is safe — close still wins on the state
+        column.
+        """
+        ...
+
     def update_workstream_name(self, ws_id: str, name: str) -> None:
         """Update a workstream's display name."""
         ...

turnstone/core/storage/_sqlite.py

@@ -97,7 +97,7 @@ from turnstone.core.storage._utils import sanitize_text
 from turnstone.core.storage._utils import (
     scan_skill_content as _scan_skill_content,
 )
-from turnstone.core.workstream import WorkstreamKind
+from turnstone.core.workstream import BULK_CLOSE_STATE_VALUES, WorkstreamKind
 
 log = get_logger(__name__)
 
@@ -707,6 +707,87 @@ class SQLiteBackend:
             )
             conn.commit()
 
+    def bulk_close_stale_orphans(
+        self,
+        kind: WorkstreamKind | str,
+        cutoff: str,
+        exclude_ws_ids: list[str],
+        live_node_ids: list[str] | None = None,
+    ) -> list[str]:
+        norm_kind = WorkstreamKind(kind).value
+        now = datetime.now(UTC).strftime("%Y-%m-%dT%H:%M:%S")
+        # SQLite has no RETURNING precedent in this file — do SELECT-then-
+        # UPDATE in one transaction, with the SAME WHERE predicates re-applied
+        # to the UPDATE.  Re-application defends against a same-process race:
+        # ``SessionManager.open()`` calls ``touch_workstream`` between the
+        # SELECT and the UPDATE could have bumped a row's ``updated`` past
+        # ``cutoff`` (or ``set_state`` could have flipped its state out of
+        # the bulk-close set).  Without the re-applied WHERE the UPDATE
+        # closes those rows anyway; with it, the UPDATE skips rows that
+        # became ineligible after the SELECT and the row stays open.
+        # Chunked through ``_in_chunks`` so the ``IN`` clause never exceeds
+        # SQLite's bind-parameter limit (default 999) on a large reap.
+        candidate_conditions = [
+            workstreams.c.kind == norm_kind,
+            workstreams.c.state.in_(BULK_CLOSE_STATE_VALUES),
+            workstreams.c.updated < cutoff,
+        ]
+        if live_node_ids is not None and live_node_ids:
+            # Protect rows owned by heartbeating services.  NULL node_id is
+            # always eligible.  Empty list means "no nodes alive" — every
+            # row is unprotected; the absence of this predicate is
+            # equivalent to "match all," so we just skip it.
+            candidate_conditions.append(
+                sa.or_(
+                    workstreams.c.node_id.is_(None),
+                    ~workstreams.c.node_id.in_(live_node_ids),
+                )
+            )
+        if exclude_ws_ids:
+            candidate_conditions.append(~workstreams.c.ws_id.in_(exclude_ws_ids))
+        select_stmt = sa.select(workstreams.c.ws_id).where(*candidate_conditions)
+        closed: list[str] = []
+        # Match the chunk size used by ``prune_workstreams`` (line 453) — keeps
+        # ``IN`` clauses well below SQLite's default 999-bind-param limit even
+        # on very large reaps.
+        chunk_size = 500
+        with self._conn() as conn:
+            candidate_ids = [row[0] for row in conn.execute(select_stmt)]
+            for i in range(0, len(candidate_ids), chunk_size):
+                chunk = candidate_ids[i : i + chunk_size]
+                # Re-apply the eligibility predicates on the UPDATE so a row
+                # that became fresh between the SELECT and the UPDATE is not
+                # clobbered.  Then SELECT back by ``state='closed' AND updated=now``
+                # to determine which rows actually transitioned this commit —
+                # the returned list reflects reality even when re-application
+                # filters out some candidates.
+                conn.execute(
+                    sa.update(workstreams)
+                    .where(workstreams.c.ws_id.in_(chunk), *candidate_conditions)
+                    .values(state="closed", updated=now)
+                )
+                actually_closed = [
+                    row[0]
+                    for row in conn.execute(
+                        sa.select(workstreams.c.ws_id).where(
+                            workstreams.c.ws_id.in_(chunk),
+                            workstreams.c.state == "closed",
+                            workstreams.c.updated == now,
+                        )
+                    )
+                ]
+                closed.extend(actually_closed)
+            conn.commit()
+            return closed
+
+    def touch_workstream(self, ws_id: str) -> None:
+        now = datetime.now(UTC).strftime("%Y-%m-%dT%H:%M:%S")
+        with self._conn() as conn:
+            conn.execute(
+                sa.update(workstreams).where(workstreams.c.ws_id == ws_id).values(updated=now)
+            )
+            conn.commit()
+
     def update_workstream_name(self, ws_id: str, name: str) -> None:
         now = datetime.now(UTC).strftime("%Y-%m-%dT%H:%M:%S")
         with self._conn() as conn:

turnstone/core/storage/migrations/versions/048_workstream_reaper_index.py

@@ -0,0 +1,88 @@
+"""Add a partial composite index for the orphan-reaper query.
+
+``StorageBackend.bulk_close_stale_orphans`` (introduced alongside the
+workstream-lifecycle leak fix) runs every ``min(300s, idle_timeout/4)``
+on every server and console process.  Its WHERE shape is:
+
+    WHERE kind = ?
+      AND state IN ('idle', 'thinking', 'attention', 'running')
+      AND updated < ?
+      AND (node_id IS NULL OR node_id NOT IN (alive_service_ids))
+
+At current scale (low-thousands of workstream rows) the existing single-
+column indexes are sufficient — ``idx_workstreams_state`` prunes to the
+non-closed subset, and the planner filters the rest sequentially.  At
+100k+ rows that filter becomes a tablescan-shaped cost on the reaper's
+periodic run.
+
+A **partial** index covering only ``BULK_CLOSE_STATE_VALUES`` rows
+matches the reaper's query exactly while staying tiny — closed rows
+(typically 95%+ of the table per empirical diagnosis) and ``error``
+rows are excluded, so the index is roughly 5% the size a full multi-
+column index would be.  Write amplification only kicks in for
+transitions that touch one of the four covered states.
+
+Column order ``(kind, updated)``:
+
+- ``kind`` first because the reaper always supplies it as an equality
+  predicate; partitions the partial index into interactive vs
+  coordinator subtrees.
+- ``updated`` last so the range comparison rides the trailing column —
+  classic composite-index pattern for ``WHERE eq AND range``.
+
+``node_id`` is intentionally NOT in the index.  The reaper's predicate
+on it is ``NOT IN (small list)`` against an unbounded-cardinality
+column, which planners don't index well; including it would just add
+write cost for negligible read benefit.
+
+PostgreSQL uses ``CREATE INDEX CONCURRENTLY`` so the build is
+non-blocking on a live system; SQLite has no concurrent concept and
+the table-level write lock already serializes, so a plain
+``CREATE INDEX`` is fine.
+
+Revision ID: 048
+Revises: 047
+Create Date: 2026-04-30
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+revision = "048"
+down_revision = "047"
+branch_labels = None
+depends_on = None
+
+
+_REAPER_PARTIAL_WHERE = "state IN ('idle', 'thinking', 'attention', 'running')"
+
+
+def upgrade() -> None:
+    bind = op.get_bind()
+    dialect = bind.dialect.name
+
+    if dialect == "postgresql":
+        with op.get_context().autocommit_block():
+            op.execute(
+                "CREATE INDEX CONCURRENTLY IF NOT EXISTS idx_workstreams_reaper "
+                "ON workstreams (kind, updated) "
+                f"WHERE {_REAPER_PARTIAL_WHERE}"
+            )
+    else:
+        op.create_index(
+            "idx_workstreams_reaper",
+            "workstreams",
+            ["kind", "updated"],
+            sqlite_where=sa.text(_REAPER_PARTIAL_WHERE),
+        )
+
+
+def downgrade() -> None:
+    bind = op.get_bind()
+    dialect = bind.dialect.name
+
+    if dialect == "postgresql":
+        with op.get_context().autocommit_block():
+            op.execute("DROP INDEX CONCURRENTLY IF EXISTS idx_workstreams_reaper")
+    else:
+        op.drop_index("idx_workstreams_reaper", table_name="workstreams")

turnstone/core/workstream.py

@@ -77,6 +77,25 @@ class WorkstreamState(enum.Enum):
     ERROR = "error"  # last operation failed
 
 
+# States the orphan reaper (``SessionManager.close_idle`` pass 2 +
+# ``StorageBackend.bulk_close_stale_orphans``) is allowed to flip to
+# ``closed`` for rows past the staleness cutoff.  Excludes ``ERROR``
+# deliberately — error rows are user-investigatable and shouldn't be
+# auto-reaped — and excludes ``CLOSED`` (terminal).  Centralized here
+# so the storage backends and FakeStorage all agree; if a new transient
+# state is added to ``WorkstreamState``, deciding whether it joins
+# this set is part of the change rather than an after-the-fact
+# audit across three files.
+BULK_CLOSE_STATE_VALUES: frozenset[str] = frozenset(
+    {
+        WorkstreamState.IDLE.value,
+        WorkstreamState.THINKING.value,
+        WorkstreamState.RUNNING.value,
+        WorkstreamState.ATTENTION.value,
+    }
+)
+
+
 # ---------------------------------------------------------------------------
 # Workstream dataclass
 # ---------------------------------------------------------------------------

turnstone/eval.py

@@ -139,6 +139,12 @@ class NullUI:
     def on_error(self, message: str) -> None:
         pass
 
+    def on_user_reminder(self, reminders: list[dict[str, str]]) -> None:
+        pass
+
+    def on_tool_reminder(self, reminders: list[dict[str, str]], tool_call_id: str) -> None:
+        pass
+
     def on_state_change(self, state: str) -> None:
         pass
 

turnstone/server.py

@@ -53,6 +53,15 @@ from turnstone.core.auth import (
     _DenyFilter,
     jwt_version_slot,
 )
+from turnstone.core.history_decoration import (
+    TOOL_RESULT_STORAGE_CAP,
+)
+from turnstone.core.history_decoration import (
+    decorate_tool_call as _decorate_tool_call,
+)
+from turnstone.core.history_decoration import (
+    load_verdict_indexes as _load_verdict_indexes,
+)
 from turnstone.core.log import get_logger
 from turnstone.core.metrics import metrics as _metrics
 from turnstone.core.ratelimit import resolve_client_ip
@@ -194,18 +203,14 @@ class WebUI(SessionUIBase):
             }
             if state == "idle":
                 event["content"] = payload["content"]
-            # Coord tree-UI renders inline approve/deny buttons off
-            # ``pending_approval_detail``; carrying it on the
-            # state-change broadcast lets the cluster bus update those
-            # buttons in lockstep with ``activity_state`` instead of
-            # forcing the browser to chase a separate dashboard fetch.
-            # Gated on existence so we don't pay the serializer's
-            # per-broadcast verdict-cache deepcopy on the common
-            # no-approval-pending path.
-            if self._pending_approval is not None:
-                detail = self.serialize_pending_approval_detail()
-                if detail is not None:
-                    event["pending_approval_detail"] = detail
+            # ``pending_approval_detail`` is NO LONGER piggybacked on
+            # state-change events (Stage 3 cleanup). Symmetric event
+            # flow now: initial approval items arrive via bulk fetch
+            # triggered by the ``activity_state="approval"`` transition,
+            # individual verdicts via the explicit
+            # ``intent_verdict`` event class, and resolution via
+            # ``approval_resolved``. Reducer no longer has to dedupe
+            # the piggyback path against the explicit one.
             try:
                 WebUI._global_queue.put_nowait(event)
             except queue.Full:
@@ -230,6 +235,73 @@ class WebUI(SessionUIBase):
                     }
                 )
 
+    def _broadcast_intent_verdict(self, verdict: dict[str, Any]) -> None:
+        """Send an LLM intent-judge verdict to the global SSE channel.
+
+        Stage 3 Step 5 — the cluster collector's ``_apply_delta``
+        forwards this verbatim to the cluster bus, where coord
+        adapters dispatch it as ``child_ws_intent_verdict`` for the
+        owning parent's tree UI. Unlike the existing
+        ``pending_approval_detail`` piggyback on ``ws_state``, this
+        fires WHENEVER a verdict lands — including the common case
+        where the judge daemon writes during ``attention`` with no
+        state transition to ride along on.
+        """
+        if WebUI._global_queue is not None:
+            with contextlib.suppress(queue.Full):
+                WebUI._global_queue.put_nowait(
+                    {
+                        "type": "intent_verdict",
+                        "ws_id": self.ws_id,
+                        "verdict": verdict,
+                    }
+                )
+
+    def _broadcast_approval_resolved(
+        self,
+        approved: bool,
+        feedback: str | None = None,
+        *,
+        always: bool = False,
+    ) -> None:
+        """Send an ``approval_resolved`` decision to the global SSE channel.
+
+        Clears the parent's pending-approval pill in lockstep with
+        the actual decision rather than waiting for the next
+        state-change piggyback.
+        """
+        if WebUI._global_queue is not None:
+            with contextlib.suppress(queue.Full):
+                WebUI._global_queue.put_nowait(
+                    {
+                        "type": "approval_resolved",
+                        "ws_id": self.ws_id,
+                        "approved": approved,
+                        "feedback": feedback or "",
+                        "always": bool(always),
+                    }
+                )
+
+    def _broadcast_approve_request(self, detail: dict[str, Any]) -> None:
+        """Send an ``approve_request`` payload to the global SSE channel.
+
+        Push path for the initial approval items so a coord parent's
+        tree UI can render the inline approve/deny block immediately
+        without waiting for a bulk-fetch round-trip. The bulk fetch
+        races with ``_pending_approval`` being set inside
+        ``approve_tools`` (the state transition to ATTENTION fires
+        upstream first); the push path eliminates that race entirely.
+        """
+        if WebUI._global_queue is not None:
+            with contextlib.suppress(queue.Full):
+                WebUI._global_queue.put_nowait(
+                    {
+                        "type": "approve_request",
+                        "ws_id": self.ws_id,
+                        "detail": detail,
+                    }
+                )
+
     # --- SessionUI protocol ---
     #
     # ``on_thinking_start`` / ``on_thinking_stop`` / ``on_reasoning_token``
@@ -345,8 +417,20 @@ class WebUI(SessionUIBase):
 # ---------------------------------------------------------------------------
 
 
+# Verdict + output-assessment decoration helpers (``_decorate_tool_call``,
+# ``_load_verdict_indexes``) are imported at module top alongside the
+# rest of ``turnstone.core.*``.  Both this builder and
+# :func:`make_history_handler` (the /history REST endpoint coord uses
+# as its primary history loader) share them so the two surfaces don't
+# drift on the wire shape they emit.
+
+
 def _build_history(
-    session: ChatSession, has_pending_approval: bool = False
+    session: ChatSession,
+    has_pending_approval: bool = False,
+    *,
+    verdicts: dict[str, dict[str, Any]] | None = None,
+    assessments: dict[str, dict[str, Any]] | None = None,
 ) -> list[dict[str, Any]]:
     """Build a history replay list from ChatSession messages.
 
@@ -358,7 +442,35 @@ def _build_history(
     ``"denied": True``, and the corresponding assistant entry that
     issued the tool calls is also marked ``"denied": True`` so the
     client can render the correct badge.
+
+    ``verdicts`` and ``assessments`` are optional pre-loaded
+    ``{call_id → row}`` dicts (see :func:`_load_verdict_indexes`).
+    Async callers should pre-load via ``asyncio.to_thread`` and pass
+    them in to avoid blocking the event loop on storage I/O. When
+    omitted, the storage call runs inline (sync call sites).
     """
+    # Metacognitive nudges live on the message dict's ``_reminders``
+    # side-channel — user messages carry user-channel nudges
+    # (correction / denial / resume / start / completion), tool
+    # messages carry tool-channel nudges (tool_error / repeat).  Both
+    # are surfaced separately on each entry so the UI can render them
+    # as their own bubble (live via ``user_reminder`` /
+    # ``tool_reminder`` SSE events; replay via this propagation).
+    # ``content`` never carries the ``<system-reminder>`` envelope —
+    # that splice is transient, applied to a wire-bound copy in
+    # ``ChatSession._apply_reminders_for_provider``.
+    #
+    # Verdict + output-assessment lookup tables — populated either
+    # inline (sync call sites) or pre-loaded by an async caller via
+    # asyncio.to_thread (see _load_verdict_indexes).  Pre-loading is
+    # what keeps _build_history off the event loop's hot path on the
+    # SSE replay generator path.
+    if verdicts is not None and assessments is not None:
+        verdicts_by_call_id = verdicts
+        assessments_by_call_id = assessments
+    else:
+        ws_id = getattr(session, "_ws_id", "") or ""
+        verdicts_by_call_id, assessments_by_call_id = _load_verdict_indexes(ws_id)
     history = []
     for msg in session.messages:
         content = msg.get("content")
@@ -404,18 +516,64 @@ def _build_history(
         entry = {"role": msg["role"], "content": content}
         if attachments_meta:
             entry["attachments"] = attachments_meta
+        # Surface the ``_reminders`` side-channel so a tab reconnecting
+        # via /history renders the same metacognitive nudge bubble the
+        # originating tab saw live (user-channel reminders via
+        # ``user_reminder`` SSE; tool-channel via ``tool_reminder``).
+        # Reminders are in-memory only (not persisted to DB), so this
+        # only fires for the originating session.
+        reminders = msg.get("_reminders")
+        if isinstance(reminders, list):
+            # Filter first so an all-malformed _reminders doesn't set the
+            # field to []; absent vs. empty-list should mean the same
+            # thing on the wire.
+            clean_reminders = [
+                {"type": str(r.get("type") or ""), "text": str(r.get("text") or "")}
+                for r in reminders
+                if isinstance(r, dict)
+            ]
+            if clean_reminders:
+                entry["reminders"] = clean_reminders
         if msg.get("tool_calls"):
-            entry["tool_calls"] = [
-                {
-                    "id": tc.get("id", ""),
+            tc_entries: list[dict[str, Any]] = []
+            for tc in msg["tool_calls"]:
+                tc_entry: dict[str, Any] = {
+                    "id": tc.get("id", "") or "",
                     "name": tc["function"]["name"],
                     "arguments": tc["function"].get("arguments", ""),
                 }
-                for tc in msg["tool_calls"]
-            ]
+                # Decorate with persisted verdict + output_assessment
+                # via the shared helper (also used by
+                # ``make_history_handler``).  Skips unflagged
+                # ("risk_level == 'none'") rows so the wire stays
+                # tight; ships only the fields the UI renders.
+                _decorate_tool_call(
+                    tc_entry,
+                    verdicts_by_call_id,
+                    assessments_by_call_id,
+                )
+                tc_entries.append(tc_entry)
+            entry["tool_calls"] = tc_entries
         # Detect denied/blocked/errored tool results by their content prefix.
         if msg.get("role") == "tool":
             content = msg.get("content", "")
+            # Propagate tool_call_id so replayHistory can anchor the
+            # rendered output to the specific .ts-approval-tool element
+            # by data-call-id (mirrors the live appendToolOutput path).
+            # Without this, multi-tool batches render every result at
+            # the bottom of the block rather than under each header.
+            result_call_id = msg.get("tool_call_id")
+            if result_call_id:
+                entry["tool_call_id"] = str(result_call_id)
+            # Tool results are clamped to TOOL_RESULT_STORAGE_CAP
+            # chars per row at storage time (session.py).  Surface
+            # that on replay so the user knows the visible output is
+            # a clipped view of what the live session saw, rather
+            # than the full result.  Reference the shared constant
+            # rather than a literal so the UI pill logic can't
+            # silently desync if the cap ever changes.
+            if isinstance(content, str) and len(content) >= TOOL_RESULT_STORAGE_CAP:
+                entry["truncated"] = True
             if isinstance(content, str):
                 if content.startswith("Denied by user") or content.startswith("Blocked"):
                     entry["denied"] = True
@@ -656,6 +814,31 @@ def _audit_close_workstream(
     )
 
 
+async def _interactive_events_replay_prepare(ws: Workstream, ui: Any, request: Request) -> None:
+    """Async pre-step run before ``_interactive_events_replay`` iterates.
+
+    Loads ``intent_verdicts`` + ``output_assessments`` for the
+    workstream off the event loop (via ``asyncio.to_thread``) and
+    stashes the result on ``request.state.verdict_indexes``. The sync
+    replay generator reads from there and passes the dicts into
+    ``_build_history`` so the storage I/O never blocks the event loop
+    on the SSE replay path.
+
+    Best-effort: if the workstream has no session or no ws_id, leaves
+    ``request.state.verdict_indexes`` unset and ``_build_history``
+    falls back to the inline storage call (sync path).
+    """
+    del ui  # not needed; lookup is keyed on ws.session._ws_id
+    session = ws.session
+    if session is None:
+        return
+    ws_id = getattr(session, "_ws_id", "") or ""
+    if not ws_id:
+        return
+    indexes = await asyncio.to_thread(_load_verdict_indexes, ws_id)
+    request.state.verdict_indexes = indexes
+
+
 def _interactive_events_replay(
     ws: Workstream, ui: Any, request: Request
 ) -> Iterable[dict[str, Any]]:
@@ -673,7 +856,6 @@ def _interactive_events_replay(
 
     Pure read — never mutates ``ws`` / ``ui`` / ``session``.
     """
-    del request  # not needed; replay reads ws/ui/session state
     session = ws.session
     if session is None:
         # Defensive — the lifted body's UI presence check guarantees
@@ -688,9 +870,22 @@ def _interactive_events_replay(
 
     # History replay — pending-approval flag rides on the last
     # assistant entry's tool_calls so the client renders them as
-    # awaiting approval rather than already approved.
+    # awaiting approval rather than already approved.  Verdict /
+    # assessment indexes were pre-loaded off the event loop by
+    # _interactive_events_replay_prepare; passing them in here keeps
+    # _build_history's storage I/O out of the sync generator path.
     pending_approval = getattr(ui, "_pending_approval", None)
-    history = _build_history(session, has_pending_approval=pending_approval is not None)
+    cached_indexes = getattr(request.state, "verdict_indexes", None)
+    if isinstance(cached_indexes, tuple) and len(cached_indexes) == 2:
+        verdicts, assessments = cached_indexes
+    else:
+        verdicts, assessments = None, None
+    history = _build_history(
+        session,
+        has_pending_approval=pending_approval is not None,
+        verdicts=verdicts,
+        assessments=assessments,
+    )
     if history:
         yield {"type": "history", "messages": history}
 
@@ -1365,13 +1560,13 @@ async def command(request: Request) -> JSONResponse:
             ui._enqueue({"type": "clear_ui"})
         elif cmd_word == "/resume":
             ui._enqueue({"type": "clear_ui"})
-            history = _build_history(ws.session)
+            history = await asyncio.to_thread(_build_history, ws.session)
             if history:
                 ui._enqueue({"type": "history", "messages": history})
         elif cmd_word in ("/rewind", "/retry"):
             # Refresh frontend with truncated history
             ui._enqueue({"type": "clear_ui"})
-            history = _build_history(ws.session)
+            history = await asyncio.to_thread(_build_history, ws.session)
             if history:
                 ui._enqueue({"type": "history", "messages": history})
             # Audit trail
@@ -1846,7 +2041,7 @@ async def _interactive_create_post_install(
             ui = ws.ui
             if isinstance(ui, WebUI):
                 ui._enqueue({"type": "clear_ui"})
-                history = _build_history(ws.session)
+                history = await asyncio.to_thread(_build_history, ws.session)
                 if history:
                     ui._enqueue({"type": "history", "messages": history})
             with contextlib.suppress(queue.Full):
@@ -3342,6 +3537,7 @@ def create_app(
         open_resolve_alias=_resolve_workstream_alias,
         open_post_load=_interactive_open_post_load,
         events_replay=_interactive_events_replay,
+        events_replay_prepare=_interactive_events_replay_prepare,
         # Pre-lift ``events_sse`` used the dedicated 200-thread
         # ``sse_executor`` so SSE polling stayed isolated from
         # every other ``asyncio.to_thread`` caller in the process

turnstone/shared_static/cards.css

@@ -3,9 +3,9 @@
    console/static (Saved Coordinators).  Single source of truth so the two
    surfaces don't drift on hover affordance, padding, or typography.
    ==========================================================================
-   Class names match the original ui/static rules they replaced; the
-   delete-mode subset stays in ui/static/style.css until coordinator gets
-   the same UX (then it can move here too).
+   Class names match the original ui/static rules they replaced.  Delete-mode
+   selectors live here too so console (Saved Coordinators) and ui/static
+   (Saved Workstreams) share one card + delete affordance.
    ========================================================================== */
 
 .dashboard-cards {
@@ -76,3 +76,283 @@
     grid-template-columns: 1fr;
   }
 }
+
+/* ==========================================================================
+   Delete UX — section-level "Delete" toggle, per-card checkboxes, bottom
+   toolbar, and confirmation modal.  Moved out of ui/static/style.css when
+   the console grew the same multi-select delete on Saved Coordinators.
+   ========================================================================== */
+
+.ws-delete-btn {
+  background: transparent;
+  border: 1px solid var(--border);
+  border-radius: var(--radius);
+  color: var(--fg-dim);
+  font-size: 12px;
+  padding: 4px 10px;
+  cursor: pointer;
+  transition:
+    color 0.15s,
+    border-color 0.15s;
+}
+.ws-delete-btn:hover {
+  color: var(--red);
+  border-color: var(--red);
+}
+
+/* Delete mode */
+.dashboard-card.ws-delete-mode {
+  cursor: pointer;
+}
+.dashboard-card.ws-delete-mode:hover {
+  border-color: var(--red);
+  background: rgba(248, 113, 113, 0.04);
+}
+.dashboard-card.ws-delete-mode.ws-selected {
+  cursor: default;
+}
+.dashboard-card.ws-delete-mode.ws-selected:hover {
+  border-color: var(--red);
+  background: rgba(248, 113, 113, 0.08);
+}
+[data-theme="light"] .dashboard-card.ws-delete-mode:hover {
+  background: rgba(220, 38, 38, 0.04);
+}
+[data-theme="light"] .dashboard-card.ws-delete-mode.ws-selected:hover {
+  background: rgba(220, 38, 38, 0.08);
+}
+.ws-card-check {
+  position: absolute;
+  top: 8px;
+  right: 8px;
+  width: 18px;
+  height: 18px;
+  accent-color: var(--red);
+  cursor: pointer;
+  z-index: 1;
+  opacity: 0;
+  animation: ws-check-fadein 0.2s ease-out forwards;
+}
+.ws-card-check:focus-visible {
+  /* Card click-handler proxies space/enter to the checkbox, so focus
+     usually rests on the card; if a screen reader / power user tabs
+     directly onto the checkbox the UA outline can be killed by
+     adjacent rules — this guarantees a visible affordance. */
+  outline: 2px solid var(--accent);
+  outline-offset: 2px;
+}
+@keyframes ws-check-fadein {
+  to {
+    opacity: 1;
+  }
+}
+.dashboard-card.ws-selected {
+  border-color: var(--red);
+  background: rgba(248, 113, 113, 0.08);
+}
+[data-theme="light"] .dashboard-card.ws-selected {
+  background: rgba(220, 38, 38, 0.08);
+}
+.ws-delete-bar {
+  display: none;
+  align-items: center;
+  gap: 12px;
+  margin-top: 12px;
+  padding: 8px 12px;
+  background: var(--bg-surface);
+  border: 1px solid var(--border);
+  border-radius: var(--radius);
+}
+.ws-delete-bar.visible {
+  display: flex;
+  animation: ws-bar-slide 0.2s ease-out;
+}
+@keyframes ws-bar-slide {
+  from {
+    opacity: 0;
+    transform: translateY(-8px);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+@media (prefers-reduced-motion: reduce) {
+  .ws-card-check {
+    animation: none;
+    opacity: 1;
+  }
+  .ws-delete-bar.visible {
+    animation: none;
+  }
+}
+/* Below ~700px the four-pill bar's preferred width (~480-520px) starts
+   eating into hit-targets and risking horizontal overflow.  Wrap onto
+   two rows: count + Cancel + Select All on the first, the destructive
+   Delete Selected on its own full-width row underneath — also a better
+   thumb-target separation than the desktop layout. */
+@media (max-width: 700px) {
+  .ws-delete-bar {
+    flex-wrap: wrap;
+    gap: 8px;
+  }
+  .ws-delete-bar .ws-delete-bar-btn {
+    margin-left: 0;
+    flex: 1 1 100%;
+    order: 99;
+  }
+}
+.ws-delete-bar .ws-delete-count-label {
+  font-size: 12px;
+  color: var(--fg-dim);
+}
+.ws-delete-bar .ws-delete-bar-btn {
+  margin-left: auto;
+  /* Dark-theme --red (#f87171) on #fff is only 3.0:1 — below WCAG AA
+     for normal text on a destructive button.  Use the deeper red
+     (#dc2626 → 4.85:1) on the filled state so the button label clears
+     AA in the default theme. Light theme already uses --red (#b91c1c,
+     5.9:1) and stays put — the override below pins it. */
+  background: #dc2626;
+  color: #fff;
+  border: none;
+  border-radius: var(--radius);
+  padding: 6px 16px;
+  font-size: 12px;
+  font-weight: 600;
+  cursor: pointer;
+  transition: filter 0.15s;
+}
+[data-theme="light"] .ws-delete-bar .ws-delete-bar-btn {
+  background: var(--red);
+}
+.ws-delete-bar .ws-delete-bar-btn:hover:not(:disabled) {
+  filter: brightness(1.1);
+}
+.ws-delete-bar .ws-delete-bar-btn:disabled {
+  opacity: 0.4;
+  cursor: not-allowed;
+}
+.ws-delete-bar .ws-delete-cancel-btn {
+  background: transparent;
+  color: var(--fg-dim);
+  border: 1px solid var(--border);
+  border-radius: var(--radius);
+  padding: 6px 12px;
+  font-size: 12px;
+  cursor: pointer;
+}
+.ws-delete-bar .ws-delete-cancel-btn:hover {
+  color: var(--fg-bright);
+  border-color: var(--border-strong);
+  background: var(--bg-highlight);
+}
+.ws-delete-bar .ws-delete-selectall-btn {
+  background: transparent;
+  color: var(--fg-bright);
+  border: 1px solid var(--border);
+  border-radius: var(--radius);
+  padding: 6px 12px;
+  font-size: 12px;
+  font-weight: 500;
+  cursor: pointer;
+}
+.ws-delete-bar .ws-delete-selectall-btn:hover {
+  border-color: var(--border-strong);
+  background: var(--bg-highlight);
+}
+
+/* Delete modal — id-scoped so the surface that owns it controls visibility.
+   Both ui/static (#ws-delete-overlay) and console/static
+   (#coord-delete-overlay) share the same shape via the .ws-delete-modal
+   class hooks below. */
+.ws-delete-modal-overlay {
+  position: fixed;
+  inset: 0;
+  background: rgba(0, 0, 0, 0.6);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 10000;
+}
+.ws-delete-modal-box {
+  background: var(--bg-surface);
+  border: 1px solid var(--border);
+  border-radius: var(--radius);
+  padding: 24px;
+  max-width: 480px;
+  width: 90%;
+}
+.ws-delete-modal-box h3 {
+  margin: 0 0 12px;
+  font-size: 16px;
+  color: var(--fg-bright);
+}
+.ws-delete-modal-list {
+  max-height: 200px;
+  overflow-y: auto;
+  margin: 12px 0;
+}
+.ws-delete-modal-list .ws-delete-item {
+  padding: 6px 0;
+  font-size: 13px;
+  color: var(--fg-bright);
+  border-bottom: 1px solid var(--border);
+  /* Long aliases / raw ws_ids in the confirm + results list shouldn't
+     punch out of the modal at narrow viewports. */
+  word-break: break-word;
+}
+/* Modal alert region — only painted when the controller writes a
+   message.  Both close paths clear it, so :not(:empty) keeps the box
+   invisible at rest and avoids an empty-frame artefact. */
+.ws-delete-modal-box [role="alert"]:not(:empty) {
+  background: rgba(248, 113, 113, 0.08);
+  border: 1px solid var(--red);
+  color: var(--red);
+  border-radius: var(--radius);
+  padding: 8px 10px;
+  font-size: 12px;
+  margin-bottom: 8px;
+}
+[data-theme="light"] .ws-delete-modal-box [role="alert"]:not(:empty) {
+  background: rgba(220, 38, 38, 0.06);
+}
+.ws-delete-modal-list .ws-delete-item:last-child {
+  border-bottom: none;
+}
+.ws-delete-modal-list .ws-delete-item.ws-delete-error {
+  color: var(--red);
+}
+.ws-delete-modal-buttons {
+  display: flex;
+  gap: 8px;
+  justify-content: flex-end;
+  margin-top: 16px;
+}
+.ws-delete-modal-buttons button {
+  padding: 8px 20px;
+  border-radius: var(--radius);
+  font-size: 13px;
+  font-weight: 500;
+  cursor: pointer;
+  border: 1px solid var(--border);
+  background: transparent;
+  color: var(--fg-bright);
+}
+.ws-delete-modal-buttons button.ws-delete-confirm {
+  /* Mirror .ws-delete-bar-btn's contrast bump — same destructive
+     filled-button treatment, same dark-theme AA fix. */
+  background: #dc2626;
+  color: #fff;
+  border-color: #dc2626;
+}
+[data-theme="light"] .ws-delete-modal-buttons button.ws-delete-confirm {
+  background: var(--red);
+  border-color: var(--red);
+}
+/* `.ws-delete-close` is a state-marker, not a colour rule — the
+   controller drops `.ws-delete-confirm` when the modal transitions to
+   the post-delete "Close" state, and the default
+   `.ws-delete-modal-buttons button` rule above already provides the
+   transparent / fg-bright / border styling.  The class itself is useful
+   for DOM inspection and as a future hook. */

turnstone/shared_static/cards.js

@@ -77,3 +77,433 @@ function renderSessionCard(sess, opts) {
   card.appendChild(metaEl);
   return card;
 }
+
+/* createSavedCardsController — shared multi-select-delete behaviour for
+   the dashboard / home "saved cards" surfaces.  ui/static (Saved
+   Workstreams) and console/static (Saved Coordinators) both instantiate
+   one of these; the controller owns:
+
+     - delete-mode state (active flag + selected ws_id set)
+     - card decoration (checkbox + key/click overrides)
+     - the bottom toolbar wiring (count, Select All, Delete Selected)
+     - the confirmation modal (focus trap, batch fan-out, results view)
+
+   It does NOT own how cards get fetched or rendered — the caller's
+   render() is invoked when the controller needs the list redrawn (mode
+   transitions, Select-All toggles).
+
+   Required opts:
+     idPrefix          — DOM-id prefix shared by the toolbar + modal
+                         (e.g. "ws-delete" / "coord-delete").  The DOM
+                         must already contain `${idPrefix}-bar`,
+                         `${idPrefix}-bar-count`, `${idPrefix}-bar-delete`,
+                         `${idPrefix}-bar-select-all`, `${idPrefix}-overlay`,
+                         `${idPrefix}-box`, `${idPrefix}-error`,
+                         `${idPrefix}-count`, `${idPrefix}-list`,
+                         `${idPrefix}-confirm-btn`, `${idPrefix}-cancel-btn`.
+     buttonId          — id of the section's start/cancel toggle button.
+     noun              — singular display word for the item kind, e.g.
+                         "workstream" / "coordinator".  Used in toast +
+                         modal copy.
+     activateLabel     — sess => string; aria-label for the card when NOT
+                         in delete mode (e.g. "Resume: foo").
+     buildDeleteRequest — wsId => { url, options }; what authFetch should
+                         send to delete one item.
+     render            — () => void; redraw the visible cards.  Called by
+                         the controller on mode start/cancel and Select-
+                         All toggle.  Caller is responsible for calling
+                         setItems(items) + decorateCard() inside it.
+     onClose           — optional () => void; called once after the user
+                         closes the post-delete results modal.  Typical
+                         use: re-fetch the saved list.
+*/
+function createSavedCardsController(opts) {
+  var state = { mode: false, selected: {}, items: [] };
+  var batchTrap = null;
+  /* Element that owned focus when the modal opened — restored in
+     closeModal() so keyboard users land back on the toggle button (or
+     wherever they came from) instead of <body>.  WCAG 2.4.3. */
+  var prevFocus = null;
+
+  function $(id) {
+    return document.getElementById(opts.idPrefix + "-" + id);
+  }
+
+  /* Replace the toggle button's content with a glyph + label, keeping
+     the glyph in an aria-hidden span so screen readers only read the
+     label.  Built from DOM nodes (no innerHTML) — same shape as the
+     section-header markup the JS replaces. */
+  function setIconButton(btn, glyph, label) {
+    btn.replaceChildren();
+    var span = document.createElement("span");
+    span.setAttribute("aria-hidden", "true");
+    span.textContent = glyph;
+    btn.appendChild(span);
+    btn.appendChild(document.createTextNode(" " + label));
+  }
+
+  function setItems(items) {
+    state.items = items;
+    /* Drop any selections whose ws_id is no longer on the visible page —
+       SSE-driven re-renders or pagination jumps shouldn't leave ghost
+       entries inflating the count and 404-ing on confirm. */
+    if (state.mode) {
+      var byId = {};
+      items.forEach(function (s) {
+        byId[s.ws_id] = true;
+      });
+      Object.keys(state.selected).forEach(function (id) {
+        if (!byId[id]) delete state.selected[id];
+      });
+    }
+  }
+
+  function inMode() {
+    return state.mode;
+  }
+
+  function blockActivate() {
+    return state.mode;
+  }
+
+  function isSelected(wsId) {
+    return !!state.selected[wsId];
+  }
+
+  function ariaLabel(sess) {
+    var label = sess.alias || sess.title || sess.name || sess.ws_id;
+    if (state.mode) return "Select " + opts.noun + ": " + label;
+    return typeof opts.activateLabel === "function"
+      ? opts.activateLabel(sess)
+      : "Activate: " + label;
+  }
+
+  /* Decorate an already-rendered .dashboard-card with the checkbox +
+     event overrides used in delete mode.  Idempotent guard: only acts
+     when the controller is active. */
+  function decorateCard(card, sess) {
+    if (!state.mode) return;
+    card.classList.add("ws-delete-mode");
+    card.removeAttribute("role");
+    var chk = document.createElement("input");
+    chk.type = "checkbox";
+    chk.className = "ws-card-check";
+    chk.checked = !!state.selected[sess.ws_id];
+    var label = sess.alias || sess.title || sess.name || sess.ws_id;
+    chk.setAttribute("aria-label", "Select " + label + " for deletion");
+    chk.onclick = function (e) {
+      e.stopPropagation();
+      if (chk.checked) state.selected[sess.ws_id] = true;
+      else delete state.selected[sess.ws_id];
+      card.classList.toggle("ws-selected", chk.checked);
+      refreshBar();
+    };
+    card.insertBefore(chk, card.firstChild);
+    card.onclick = function (e) {
+      if (e.target === chk) return;
+      chk.checked = !chk.checked;
+      chk.onclick(e);
+    };
+    card.onkeydown = function (e) {
+      if (e.key === "Enter" || e.key === " ") {
+        e.preventDefault();
+        chk.checked = !chk.checked;
+        chk.onclick(e);
+      }
+    };
+    if (state.selected[sess.ws_id]) card.classList.add("ws-selected");
+  }
+
+  function refreshBar() {
+    var count = Object.keys(state.selected).length;
+    var label = $("bar-count");
+    if (label) label.textContent = count + " selected";
+    var delBtn = $("bar-delete");
+    if (delBtn) delBtn.disabled = count === 0;
+    var selBtn = $("bar-select-all");
+    if (selBtn) {
+      var allSelected = count === state.items.length && state.items.length > 0;
+      selBtn.textContent = allSelected ? "Deselect All" : "Select All";
+    }
+  }
+
+  function start() {
+    if (!state.items.length) {
+      if (typeof showToast === "function") {
+        showToast("No saved " + opts.noun + "s to delete");
+      }
+      return;
+    }
+    state.mode = true;
+    state.selected = {};
+    opts.render();
+    var btn = document.getElementById(opts.buttonId);
+    if (btn) {
+      setIconButton(btn, "✕", "Cancel");
+      btn.onclick = cancel;
+    }
+    var bar = $("bar");
+    if (bar) bar.classList.add("visible");
+    refreshBar();
+  }
+
+  function cancel() {
+    state.mode = false;
+    state.selected = {};
+    opts.render();
+    var btn = document.getElementById(opts.buttonId);
+    if (btn) {
+      setIconButton(btn, "\u{1f5d1}", "Delete");
+      btn.onclick = start;
+    }
+    var bar = $("bar");
+    if (bar) bar.classList.remove("visible");
+  }
+
+  function toggleAll() {
+    var allSelected =
+      Object.keys(state.selected).length === state.items.length &&
+      state.items.length > 0;
+    if (allSelected) {
+      state.selected = {};
+    } else {
+      state.items.forEach(function (s) {
+        state.selected[s.ws_id] = true;
+      });
+    }
+    opts.render();
+    refreshBar();
+  }
+
+  function _byId() {
+    /* Single-pass index over the visible items so the modal + fan-out
+       paths don't repeat O(N) `find` calls per selection. */
+    var map = {};
+    state.items.forEach(function (s) {
+      map[s.ws_id] = s;
+    });
+    return map;
+  }
+
+  function confirmSelection() {
+    var selected = Object.keys(state.selected);
+    if (!selected.length) {
+      if (typeof showToast === "function") {
+        showToast("No " + opts.noun + "s selected");
+      }
+      return;
+    }
+    var byId = _byId();
+    var overlay = $("overlay");
+    var countEl = $("count");
+    var listEl = $("list");
+    var errorEl = $("error");
+    if (errorEl) errorEl.textContent = "";
+    if (countEl) {
+      countEl.textContent =
+        selected.length + " " + opts.noun + "(s) will be permanently deleted:";
+    }
+    if (listEl) {
+      listEl.replaceChildren();
+      selected.forEach(function (wsId) {
+        var item = byId[wsId];
+        var name = item ? item.alias || item.title || item.name || wsId : wsId;
+        var div = document.createElement("div");
+        div.className = "ws-delete-item";
+        div.textContent = name;
+        listEl.appendChild(div);
+      });
+    }
+    var delBtn = $("confirm-btn");
+    if (delBtn) {
+      delBtn.textContent = "Delete";
+      delBtn.disabled = false;
+      delBtn.classList.remove("ws-delete-close");
+      delBtn.classList.add("ws-delete-confirm");
+      delBtn.onclick = confirm;
+    }
+    var cancelBtn = $("cancel-btn");
+    if (cancelBtn) cancelBtn.disabled = false;
+    if (overlay) overlay.style.display = "flex";
+
+    if (batchTrap) document.removeEventListener("keydown", batchTrap);
+    batchTrap = function (e) {
+      if (e.key === "Escape") {
+        e.preventDefault();
+        closeModal();
+        return;
+      }
+      if (e.key === "Tab") {
+        var box = $("box");
+        if (!box) return;
+        var focusable = box.querySelectorAll("button:not(:disabled)");
+        if (!focusable.length) return;
+        var first = focusable[0];
+        var last = focusable[focusable.length - 1];
+        if (e.shiftKey && document.activeElement === first) {
+          e.preventDefault();
+          last.focus();
+        } else if (!e.shiftKey && document.activeElement === last) {
+          e.preventDefault();
+          first.focus();
+        }
+      }
+    };
+    document.addEventListener("keydown", batchTrap);
+    /* Snapshot the pre-modal focus owner so closeModal() can return to
+       it.  Captured before we move focus into the dialog so the
+       restore-target is the caller, not the dialog itself. */
+    prevFocus = document.activeElement;
+    if (cancelBtn) cancelBtn.focus();
+  }
+
+  function closeModal() {
+    var overlay = $("overlay");
+    if (overlay) overlay.style.display = "none";
+    if (batchTrap) {
+      document.removeEventListener("keydown", batchTrap);
+      batchTrap = null;
+    }
+    /* Pick the most useful focus target:
+         1. prevFocus (where the user came from), if it's still in the
+            DOM and visible.  Esc / Cancel paths land here — the bar is
+            still on screen, so focus returns to "Delete Selected".
+         2. The section toggle button — always present, semantic exit
+            point for the flow.  Used when prevFocus has been hidden by
+            cancel() (post-delete Close path: cancel() ran first and
+            put `.ws-delete-bar` at display:none, so the bar's button
+            is no longer focusable). */
+    var target = prevFocus;
+    if (!target || target.offsetParent === null) {
+      target = document.getElementById(opts.buttonId);
+    }
+    if (target && typeof target.focus === "function") {
+      try {
+        target.focus();
+      } catch (_) {
+        /* node detached between open and close — give up silently */
+      }
+    }
+    prevFocus = null;
+  }
+
+  function confirm() {
+    var selected = Object.keys(state.selected);
+    if (!selected.length) return;
+    var byId = _byId();
+    var errorEl = $("error");
+    var listEl = $("list");
+    var countEl = $("count");
+    var delBtn = $("confirm-btn");
+    var cancelBtn = $("cancel-btn");
+    if (errorEl) errorEl.textContent = "";
+    if (delBtn) {
+      delBtn.disabled = true;
+      delBtn.textContent = "Deleting...";
+    }
+    if (cancelBtn) cancelBtn.disabled = true;
+
+    var results = [];
+    var promises = selected.map(function (wsId) {
+      var shortId = wsId.substring(0, 8);
+      var item = byId[wsId];
+      var name = item ? item.alias || item.title || item.name || wsId : wsId;
+      var req = opts.buildDeleteRequest(wsId);
+      return authFetch(req.url, req.options)
+        .then(function (r) {
+          var status = r.status;
+          var contentType = r.headers.get("content-type") || "";
+          if (r.ok) {
+            results.push({ name: name, shortId: shortId, ok: true });
+            return;
+          }
+          return r.text().then(function (body) {
+            var errMsg = shortId + ": HTTP " + status;
+            if (contentType.includes("json")) {
+              try {
+                var j = JSON.parse(body);
+                if (j.error) errMsg = shortId + ": " + j.error;
+              } catch (_) {
+                /* fall through */
+              }
+            } else if (body) {
+              errMsg = shortId + ": " + body.substring(0, 200);
+            }
+            results.push({
+              name: name,
+              shortId: shortId,
+              ok: false,
+              error: errMsg,
+            });
+          });
+        })
+        .catch(function (err) {
+          results.push({
+            name: name,
+            shortId: shortId,
+            ok: false,
+            error: shortId + ": " + err.message,
+          });
+        });
+    });
+
+    Promise.all(promises).then(function () {
+      if (listEl) {
+        listEl.replaceChildren();
+        results.forEach(function (r) {
+          var div = document.createElement("div");
+          div.className = "ws-delete-item" + (r.ok ? "" : " ws-delete-error");
+          div.textContent =
+            (r.ok ? "✓ " : "✗ ") + r.name + (r.error ? " — " + r.error : "");
+          listEl.appendChild(div);
+        });
+      }
+      var okCount = results.filter(function (r) {
+        return r.ok;
+      }).length;
+      var failCount = results.filter(function (r) {
+        return !r.ok;
+      }).length;
+      if (countEl) {
+        countEl.textContent = okCount + " deleted, " + failCount + " failed";
+      }
+      if (delBtn) {
+        delBtn.disabled = false;
+        delBtn.textContent = "Close";
+        /* Swap modifier classes so styling is intent-driven instead of
+           cascade-positional: the Close button picks up the default
+           ".ws-delete-modal-buttons button" rule once .ws-delete-confirm
+           is removed. */
+        delBtn.classList.remove("ws-delete-confirm");
+        delBtn.classList.add("ws-delete-close");
+        delBtn.onclick = function () {
+          /* Order matters: cancel() reshapes the toggle button via
+             setIconButton(), which preserves the element identity but
+             swaps its subtree.  closeModal() then focuses prevFocus —
+             which IS that toggle button — landing on a freshly rebuilt
+             "Delete" affordance instead of <body>. */
+          cancel();
+          closeModal();
+          if (typeof opts.onClose === "function") opts.onClose();
+        };
+      }
+      if (cancelBtn) cancelBtn.disabled = false;
+    });
+  }
+
+  return {
+    setItems: setItems,
+    inMode: inMode,
+    blockActivate: blockActivate,
+    isSelected: isSelected,
+    ariaLabel: ariaLabel,
+    decorateCard: decorateCard,
+    refreshBar: refreshBar,
+    start: start,
+    cancel: cancel,
+    toggleAll: toggleAll,
+    confirmSelection: confirmSelection,
+    closeModal: closeModal,
+    confirm: confirm,
+  };
+}

turnstone/shared_static/chat.css

@@ -885,6 +885,27 @@
 .msg.user {
   border-left-color: var(--accent);
 }
+/* Metacognitive reminder — slotted directly below the message it
+   advises (user message for correction/denial/etc., tool result for
+   tool_error/repeat).  Yellow accent reads as "advisory metadata"
+   against the amber-ish user colour and the cyan tool cards;
+   deliberately quieter than the surrounding bubbles so it doesn't
+   compete for attention.  Lives in the shared stylesheet so both
+   the interactive UI and the console coord viewer render the same
+   themed bubble. */
+.msg.user-reminder {
+  border-left-color: var(--yellow);
+  color: var(--fg-dim);
+  font-size: 12px;
+  padding: 6px 10px;
+  white-space: pre-wrap;
+}
+.msg.user-reminder .msg-user-reminder-label {
+  color: var(--yellow);
+  font-weight: 600;
+  margin-right: 6px;
+  text-transform: lowercase;
+}
 .msg.assistant {
   border-left-color: var(--hair-2);
 }

turnstone/ui/static/app.js

@@ -557,6 +557,44 @@ Pane.prototype.handleEvent = function (evt) {
       this.addErrorMessage(evt.message);
       break;
 
+    case "user_reminder":
+      // Metacognitive nudges — render as their own bubble below the
+      // user message they advise (semantically: a hint to the model
+      // right before its turn).  The originating tab's optimistic
+      // addUserMessage already ran when the user clicked send, so by
+      // the time this SSE event arrives the just-sent user bubble is
+      // at the bottom of messagesEl and addUserReminder's "anchor to
+      // most recent .msg.user" lookup finds it correctly; the
+      // insertAdjacentElement('afterend', el) call drops the bubble
+      // immediately below.
+      //
+      // Multi-tab caveat: the server emits no user_message SSE event
+      // today, so a non-originating tab open on the same workstream
+      // sees the reminder without a paired user-message render — the
+      // anchor falls on a stale prior user bubble, mis-positioning
+      // the reminder.  The next /history reload corrects it (the
+      // entry["reminders"] propagation in _build_history is
+      // anchor-stable because replayHistory runs addUserMessage first
+      // for every turn).  Acceptable cost for stage 1; closing the
+      // gap is a follow-up that adds a user_message SSE event.
+      if (Array.isArray(evt.reminders) && evt.reminders.length) {
+        this.addUserReminder(evt.reminders);
+      }
+      break;
+
+    case "tool_reminder":
+      // Metacognitive tool-channel nudge (tool_error / repeat) —
+      // render as the same yellow themed bubble used for user-channel
+      // reminders, anchored below the .ts-approval block whose tool
+      // result triggered the batch's reminder.  evt.tool_call_id
+      // identifies the specific tool element; addToolReminder walks
+      // up to its parent approval block and inserts the bubble
+      // immediately after.
+      if (Array.isArray(evt.reminders) && evt.reminders.length) {
+        this.addToolReminder(evt.reminders, evt.tool_call_id || "");
+      }
+      break;
+
     case "message_queued":
       // Confirmation from server that a queued message was accepted.
       // The UI already showed the message optimistically in addQueuedMessage.
@@ -669,6 +707,97 @@ Pane.prototype.removeThinkingIndicator = function () {
   if (el) el.remove();
 };
 
+Pane.prototype.addUserReminder = function (reminders) {
+  // Render each metacognitive reminder as its own bubble immediately
+  // BELOW the user message it advises — semantically the reminder is
+  // a hint to the model right before the assistant turn.  Always
+  // called AFTER the corresponding addUserMessage (live: optimistic
+  // local render ran before the SSE event arrived; replay:
+  // replayHistory renders the user message first), so "most recent
+  // .msg.user" is always THIS turn's bubble — insertAdjacentElement
+  // afterend drops the reminder directly below it.  When no .msg.user
+  // exists at all (e.g. a non-originating tab receiving a reminder
+  // before any user turn has rendered) we append; the next /history
+  // reload corrects any anchor anomaly.
+  this.removeEmptyState();
+  var userBubbles = this.messagesEl.querySelectorAll(".msg.user");
+  var anchor = userBubbles.length ? userBubbles[userBubbles.length - 1] : null;
+  for (var i = 0; i < reminders.length; i++) {
+    var r = reminders[i] || {};
+    var el = document.createElement("div");
+    el.className = "msg user-reminder";
+    var labelEl = document.createElement("span");
+    labelEl.className = "msg-user-reminder-label";
+    labelEl.textContent =
+      "metacognition" + (r.type ? " · " + String(r.type) : "");
+    var textEl = document.createElement("span");
+    textEl.className = "msg-user-reminder-text";
+    textEl.textContent = r.text || "";
+    el.appendChild(labelEl);
+    el.appendChild(textEl);
+    if (anchor) {
+      anchor.insertAdjacentElement("afterend", el);
+      // Anchor advances so multiple reminders stack below the user
+      // message in queued order (rather than each landing
+      // immediately-after the user msg, which would reverse them).
+      anchor = el;
+    } else {
+      this.messagesEl.appendChild(el);
+    }
+  }
+  this.scrollToBottom(true);
+};
+
+Pane.prototype.addToolReminder = function (reminders, toolCallId) {
+  // Render each metacognitive tool-channel reminder (tool_error /
+  // repeat) as the same yellow themed bubble used for user-channel
+  // reminders, anchored below the .ts-approval block that produced
+  // the tool result.  toolCallId is the live-path anchor (SSE event
+  // carries it); during replay it's an empty string and we fall back
+  // to "last .ts-approval block in messagesEl", which is correct
+  // because messages render in order — the assistant block carrying
+  // the tool batch is always the most recent approval block by the
+  // time we hit the tool message that owns the reminder.
+  this.removeEmptyState();
+  var anchor = null;
+  if (toolCallId) {
+    var escapedId = CSS.escape(toolCallId);
+    var toolEl = this.messagesEl.querySelector(
+      '.ts-approval-tool[data-call-id="' + escapedId + '"]',
+    );
+    if (toolEl) {
+      anchor = toolEl.closest(".ts-approval");
+    }
+  }
+  if (!anchor) {
+    var blocks = this.messagesEl.querySelectorAll(".ts-approval");
+    if (blocks.length) anchor = blocks[blocks.length - 1];
+  }
+  for (var i = 0; i < reminders.length; i++) {
+    var r = reminders[i] || {};
+    var el = document.createElement("div");
+    // Same .msg.user-reminder class — visual treatment is shared
+    // across user and tool channels (both are metacog nudges).
+    el.className = "msg user-reminder";
+    var labelEl = document.createElement("span");
+    labelEl.className = "msg-user-reminder-label";
+    labelEl.textContent =
+      "metacognition" + (r.type ? " · " + String(r.type) : "");
+    var textEl = document.createElement("span");
+    textEl.className = "msg-user-reminder-text";
+    textEl.textContent = r.text || "";
+    el.appendChild(labelEl);
+    el.appendChild(textEl);
+    if (anchor) {
+      anchor.insertAdjacentElement("afterend", el);
+      anchor = el;
+    } else {
+      this.messagesEl.appendChild(el);
+    }
+  }
+  this.scrollToBottom(true);
+};
+
 Pane.prototype.addUserMessage = function (text, attachments) {
   this.removeEmptyState();
   var el = document.createElement("div");
@@ -907,13 +1036,54 @@ Pane.prototype.replayHistory = function (messages) {
     this.showEmptyState();
     return;
   }
+  // Suppress the polite live region while we batch-build the replay
+  // — messagesEl is aria-live="polite" so a fresh replay would otherwise
+  // queue an announcement for every approved/denied/verdict pill we
+  // insert.  Restored after the loop so live SSE updates announce
+  // normally.  WCAG 4.1.3 — historical content should not behave like
+  // real-time updates.
+  this.messagesEl.setAttribute("aria-busy", "true");
+  // pendingAssessments[call_id] = output_assessment dict.  Populated
+  // from the assistant branch, consumed by the role==="tool" branch
+  // (or after the loop, for legacy rows missing tool_call_id).
+  // Replaces a JSON.stringify→dataset→JSON.parse round-trip with an
+  // in-memory map keyed by call_id.
+  var pendingAssessments = {};
   var lastToolBlock = null;
   for (var i = 0; i < messages.length; i++) {
     var msg = messages[i];
     if (msg.role === "user") {
+      // addUserMessage first so addUserReminder's "anchor to most
+      // recent .msg.user" lookup finds THIS message's bubble (not the
+      // previous user message's, which would associate the reminder
+      // with the wrong turn).  addUserReminder then drops the bubble
+      // immediately below the just-rendered user message via
+      // insertAdjacentElement('afterend', el).
       this.addUserMessage(msg.content || "", msg.attachments || null);
+      if (Array.isArray(msg.reminders) && msg.reminders.length) {
+        this.addUserReminder(msg.reminders);
+      }
       lastToolBlock = null;
     } else if (msg.role === "assistant") {
+      // Render content BEFORE the tool block so the visual order
+      // matches the live SSE flow (stream_text streams content first,
+      // then tool_info / approve_request paints the tool block, then
+      // tool_result fills it in).  Order also matters structurally:
+      // the tool-result message in the NEXT iteration anchors via
+      // lastToolBlock, which the tool-block branch sets last — so
+      // content must run first to avoid clobbering that anchor.
+      if (msg.content) {
+        var el = document.createElement("div");
+        el.className = "msg assistant";
+        var bodyEl = document.createElement("div");
+        bodyEl.className = "msg-body";
+        var rendered = renderMarkdown(msg.content);
+        bodyEl.innerHTML = rendered;
+        el.appendChild(bodyEl);
+        postRenderMarkdown(el);
+        self.messagesEl.appendChild(el);
+        lastToolBlock = null;
+      }
       if (msg.tool_calls && msg.tool_calls.length) {
         if (msg.pending) {
           lastToolBlock = null;
@@ -958,7 +1128,35 @@ Pane.prototype.replayHistory = function (messages) {
               cmd.textContent = tc.arguments.substring(0, 100);
             }
             div.appendChild(cmd);
+            // Verdict badge — anchor to THIS tool's row (div) rather
+            // than the whole block, so a multi-tool batch with one
+            // flagged call doesn't drift the badge above unrelated
+            // calls.  Same renderVerdictBadge helper as live; pass
+            // judgePending=false because any verdict on replay is
+            // final — no spinner.
+            if (tc.verdict) {
+              div.insertAdjacentHTML(
+                "beforeend",
+                renderVerdictBadge(tc.verdict, false),
+              );
+            }
             block.appendChild(div);
+            // Output-guard finding — defer insertion until the tool
+            // result lands so the warning anchors under the output
+            // (mirrors live showOutputWarning placement).  Stash in
+            // a function-local map keyed by call_id so the
+            // role==="tool" branch below can pick it up; legacy rows
+            // missing tool_call_id are flushed at end-of-replay.
+            if (
+              tc.output_assessment &&
+              tc.output_assessment.risk_level &&
+              tc.output_assessment.risk_level !== "none"
+            ) {
+              pendingAssessments[tc.id || ""] = {
+                assessment: tc.output_assessment,
+                toolDiv: div,
+              };
+            }
           });
           var badge = document.createElement("div");
           badge.setAttribute("role", "status");
@@ -974,18 +1172,6 @@ Pane.prototype.replayHistory = function (messages) {
           lastToolBlock = block;
         }
       }
-      if (msg.content) {
-        var el = document.createElement("div");
-        el.className = "msg assistant";
-        var bodyEl = document.createElement("div");
-        bodyEl.className = "msg-body";
-        var rendered = renderMarkdown(msg.content);
-        bodyEl.innerHTML = rendered;
-        el.appendChild(bodyEl);
-        postRenderMarkdown(el);
-        self.messagesEl.appendChild(el);
-        lastToolBlock = null;
-      }
     } else if (msg.role === "tool") {
       if (lastToolBlock) {
         var stripped = stripAnsi(msg.content || "").trim();
@@ -994,34 +1180,156 @@ Pane.prototype.replayHistory = function (messages) {
           /^Denied by user/.test(stripped) ||
           /^Blocked/.test(stripped);
         var isToolError = !!msg.is_error;
+        // Anchor the rendered output to the specific .ts-approval-tool
+        // element matching this result's tool_call_id — mirrors the
+        // live appendToolOutput path so multi-tool batches show
+        // [hdr A][out A][hdr B][out B] rather than [A][B][out A][out B].
+        // Falls back to "before badge" when tool_call_id is absent
+        // (legacy rows pre-dating the wire-format addition).
+        var resultTarget = null;
+        if (msg.tool_call_id) {
+          resultTarget = lastToolBlock.querySelector(
+            '.ts-approval-tool[data-call-id="' +
+              CSS.escape(msg.tool_call_id) +
+              '"]',
+          );
+        }
+        // Cursor-style append: cursor advances after each insert so
+        // the next sibling lands AFTER the previous one.  Fixes the
+        // bug where calling resultTarget.after(node) twice put the
+        // second node BETWEEN resultTarget and the first (the second
+        // .after call was always relative to the same anchor).
+        // Resulting order with all three present:
+        //   [tool div][output][truncation pill][output-warning]
+        var insertCursor = resultTarget;
+        var insertChained = function (node) {
+          if (insertCursor) {
+            insertCursor.after(node);
+            insertCursor = node;
+          } else {
+            var bdg = lastToolBlock.querySelector(".ts-approval-badge");
+            if (bdg) lastToolBlock.insertBefore(node, bdg);
+            else lastToolBlock.appendChild(node);
+          }
+        };
         if (stripped && !isDenied) {
           var media = !isToolError ? tryParseMedia(stripped) : null;
           if (media) {
-            var embed = buildMediaEmbed(media, stripped);
-            var bdg = lastToolBlock.querySelector(".ts-approval-badge");
-            if (bdg) lastToolBlock.insertBefore(embed, bdg);
-            else lastToolBlock.appendChild(embed);
+            insertChained(buildMediaEmbed(media, stripped));
           } else {
             var out = renderToolOutput(stripped, isToolError);
             if (out.textContent.split("\n").length > 10) {
               makeCollapsible(out);
             }
-            var bdg = lastToolBlock.querySelector(".ts-approval-badge");
-            if (bdg) lastToolBlock.insertBefore(out, bdg);
-            else lastToolBlock.appendChild(out);
+            insertChained(out);
+          }
+          // Truncation pill — server marks this when the stored row
+          // hit the 2000-char cap.  Live tool_result events carry full
+          // output so they don't need the indicator.
+          if (msg.truncated) {
+            var pill = document.createElement("span");
+            pill.className = "tool-output-truncated";
+            pill.textContent = "… truncated in storage";
+            pill.title =
+              "The full tool output was sent to the model live; only the first 10000 characters are persisted to the conversation row.";
+            insertChained(pill);
           }
         }
         if (isToolError && !lastToolBlock.classList.contains("denied")) {
           lastToolBlock.classList.add("error");
           appendToolErrorBadge(lastToolBlock);
         }
+        // Output-guard warning — pull the assessment out of the
+        // function-local pendingAssessments map (populated in the
+        // assistant branch).  Skip when the tool result was denied —
+        // the ✗ denied badge already signals the deny path.
+        if (!isDenied && msg.tool_call_id) {
+          var pending = pendingAssessments[msg.tool_call_id];
+          if (pending) {
+            insertChained(_buildOutputWarningEl(pending.assessment));
+            delete pendingAssessments[msg.tool_call_id];
+          }
+        }
+      }
+      // Tool-channel metacog reminders (tool_error / repeat) attach
+      // to the LAST tool message in a batch; on replay we render the
+      // bubble immediately below the .ts-approval block that owns
+      // the tool result.  addToolReminder's empty-toolCallId fallback
+      // resolves to "last .ts-approval block" — which is exactly
+      // lastToolBlock here.
+      if (Array.isArray(msg.reminders) && msg.reminders.length) {
+        this.addToolReminder(msg.reminders, "");
       }
     }
   }
+  // Flush any output_assessments left in the map — these correspond
+  // to assistant tool_calls whose tool result row didn't carry a
+  // tool_call_id (legacy / migrated rows pre-dating the wire-format
+  // addition).  Render the warning under the tool div itself rather
+  // than dropping the safety information silently.
+  var leftoverIds = Object.keys(pendingAssessments);
+  for (var p = 0; p < leftoverIds.length; p++) {
+    var leftover = pendingAssessments[leftoverIds[p]];
+    if (!leftover) continue;
+    leftover.toolDiv.insertAdjacentElement(
+      "afterend",
+      _buildOutputWarningEl(leftover.assessment),
+    );
+  }
   this._attachRetryToLastAssistant();
   this.scrollToBottom();
+  // Focus the input so keyboard users land on the next-action target
+  // after replay finishes — but only when this is the focused pane,
+  // there's no pending approval competing for focus, and an input
+  // element actually exists.  Skipping when not the focused pane
+  // avoids stealing focus from another tab the user is interacting
+  // with while a background replay completes.
+  if (
+    this.id === focusedPaneId &&
+    !this.pendingApproval &&
+    this.inputEl &&
+    !this.busy
+  ) {
+    try {
+      this.inputEl.focus({ preventScroll: true });
+    } catch (_) {
+      this.inputEl.focus();
+    }
+  }
+  // Restore live-region semantics now that the batch build is done.
+  this.messagesEl.removeAttribute("aria-busy");
 };
 
+// Shared output-warning DOM builder — used by both replayHistory
+// (saved-workstream rendering) and the live appendToolOutput path
+// via showOutputWarning.  Single source of truth keeps the two
+// surfaces from drifting on role / class / escape semantics.
+function _buildOutputWarningEl(assessment) {
+  var risk = (assessment && assessment.risk_level) || "medium";
+  var flags = (assessment && assessment.flags) || [];
+  var warning = document.createElement("div");
+  warning.className = "output-warning output-warning-" + risk;
+  // role="status" (polite) rather than "alert" (assertive) — these
+  // are findings, not emergencies; the assertive announcement live
+  // would interrupt the user mid-typing on a high-risk match, which
+  // is more disruptive than informative.
+  warning.setAttribute("role", "status");
+  var labelEl = document.createElement("span");
+  labelEl.className = "output-warning-label";
+  labelEl.textContent = "⚠ " + String(risk).toUpperCase();
+  warning.appendChild(labelEl);
+  if (flags.length) {
+    warning.appendChild(document.createTextNode(" " + flags.join(", ")));
+  }
+  if (assessment && assessment.redacted) {
+    var redacted = document.createElement("span");
+    redacted.className = "output-warning-redacted";
+    redacted.textContent = " (credentials redacted)";
+    warning.appendChild(redacted);
+  }
+  return warning;
+}
+
 Pane.prototype._attachRetryToLastAssistant = function () {
   // Remove any previous retry buttons
   var old = this.messagesEl.querySelectorAll(".msg.assistant .msg-actions");
@@ -1029,6 +1337,21 @@ Pane.prototype._attachRetryToLastAssistant = function () {
   // Find the last assistant message with content and add retry.
   // Reasoning blocks emit as .msg.reasoning (distinct modifier) so the
   // .msg.assistant selector already excludes them — no extra guard needed.
+  //
+  // Skip retry attachment when the most recent semantic turn is
+  // tool-only — last DOM child is a .ts-approval block.  Walk back
+  // past .user-reminder bubbles (added via addToolReminder /
+  // addUserReminder AFTER the .ts-approval block they advise) so the
+  // guard fires correctly even when the tool turn carried a metacog
+  // reminder.  Without this skip, retry lands on a stale prior
+  // assistant content bubble belonging to an earlier turn.
+  var lastChild = this.messagesEl.lastElementChild;
+  while (lastChild && lastChild.classList.contains("user-reminder")) {
+    lastChild = lastChild.previousElementSibling;
+  }
+  if (lastChild && lastChild.classList.contains("ts-approval")) {
+    return;
+  }
   var assistants = this.messagesEl.querySelectorAll(".msg.assistant");
   if (assistants.length) {
     this._addRetryAction(assistants[assistants.length - 1]);
@@ -1318,6 +1641,19 @@ Pane.prototype.appendToolOutput = function (callId, name, output, isError) {
   var stripped = stripAnsi(output || "").trim();
   if (!stripped) return;
 
+  // Skip rendering for denied/blocked tool results — the ✗ denied
+  // badge from resolveApproval already shows the denial reason; the
+  // SSE tool_result event would otherwise duplicate the text.  Mirror
+  // the guard in the history-replay path (the live path used to be
+  // safe because no tool_result event was ever emitted for denied
+  // items, but we now emit one so _tool_error_flags gets set).
+  var parentBlock = target.closest(".ts-approval");
+  var isDenied =
+    (parentBlock && parentBlock.classList.contains("denied")) ||
+    /^Denied by user/.test(stripped) ||
+    /^Blocked/.test(stripped);
+  if (isDenied) return;
+
   // Detect structured media output and render interactive embed
   if (!isError) {
     var media = tryParseMedia(stripped);
@@ -1332,12 +1668,9 @@ Pane.prototype.appendToolOutput = function (callId, name, output, isError) {
   var out = renderToolOutput(stripped, isError);
 
   // Mark the parent approval block as errored
-  if (isError) {
-    var parentBlock = target.closest(".ts-approval");
-    if (parentBlock && !parentBlock.classList.contains("denied")) {
-      parentBlock.classList.add("error");
-      appendToolErrorBadge(parentBlock);
-    }
+  if (isError && parentBlock && !parentBlock.classList.contains("denied")) {
+    parentBlock.classList.add("error");
+    appendToolErrorBadge(parentBlock);
   }
 
   if (out.textContent.split("\n").length > 10) {
@@ -1355,20 +1688,14 @@ Pane.prototype.showOutputWarning = function (evt) {
     '.ts-approval-tool[data-call-id="' + escapedId + '"]',
   );
   if (!toolDiv) return;
-  var risk = evt.risk_level || "medium";
-  var flags = evt.flags || [];
-  var warning = document.createElement("div");
-  warning.className = "output-warning output-warning-" + risk;
-  warning.setAttribute("role", "alert");
-  warning.innerHTML =
-    '<span class="output-warning-label">\u26a0 ' +
-    escapeHtml(risk.toUpperCase()) +
-    "</span> " +
-    flags.map(escapeHtml).join(", ");
-  if (evt.redacted) {
-    warning.innerHTML +=
-      ' <span class="output-warning-redacted">(credentials redacted)</span>';
-  }
+  // Shared DOM-builder with replayHistory \u2014 single source of truth for
+  // role / class / escape semantics.  Argument shape mirrors the
+  // server-side output_assessment dict (risk_level / flags / redacted).
+  var warning = _buildOutputWarningEl({
+    risk_level: evt.risk_level,
+    flags: evt.flags,
+    redacted: evt.redacted,
+  });
   var nextEl = toolDiv.nextElementSibling;
   if (nextEl && nextEl.classList.contains("tool-output")) {
     nextEl.insertAdjacentElement("afterend", warning);
@@ -3511,12 +3838,35 @@ function updateDashFooter(agg) {
   }
 }
 
-var _wsDeleteMode = false;
-var _wsDeleteSelected = {};
+// Saved Workstreams cache + multi-select delete controller.  The
+// controller (from /shared/cards.js) owns mode state, checkbox
+// decoration, the toolbar wiring, and the confirmation modal — see
+// createSavedCardsController for the shared bits.
 var _wsSavedItems = [];
+var _wsDeleteController = createSavedCardsController({
+  idPrefix: "ws-delete",
+  buttonId: "ws-delete-btn",
+  noun: "workstream",
+  activateLabel: function (s) {
+    return "Resume: " + (s.alias || s.title || s.ws_id);
+  },
+  buildDeleteRequest: function (wsId) {
+    return {
+      url: "/v1/api/workstreams/" + encodeURIComponent(wsId) + "/delete",
+      options: { method: "POST" },
+    };
+  },
+  render: function () {
+    renderSavedWorkstreams(_wsSavedItems);
+  },
+  onClose: function () {
+    loadDashboard();
+  },
+});
 
 function renderSavedWorkstreams(items) {
   _wsSavedItems = items;
+  _wsDeleteController.setItems(items);
   var c = document.getElementById("dashboard-saved-cards");
   c.replaceChildren();
   if (!items.length) {
@@ -3527,289 +3877,39 @@ function renderSavedWorkstreams(items) {
     return;
   }
   items.forEach(function (sess) {
-    // Default card shape (title + meta + wsid + Resume click) comes from
-    // the shared /shared/cards.js helper so console (Saved Coordinators)
-    // and ui/static (Saved Workstreams) stay in lock-step.  Delete mode
-    // is interactive-only; we layer the checkbox + selection wiring on
-    // top of the shared card after construction.
     var card = renderSessionCard(sess, {
-      ariaLabel: function (s) {
-        var label = s.alias || s.title || s.ws_id;
-        return _wsDeleteMode ? "Select: " + label : "Resume: " + label;
-      },
+      ariaLabel: _wsDeleteController.ariaLabel,
       onActivate: function (s) {
-        // Suppressed in delete mode \u2014 the layered checkbox handler below
-        // owns clicks while delete-mode is active.
-        if (_wsDeleteMode) return;
+        if (_wsDeleteController.blockActivate()) return;
         dashboardResumeSession(s.ws_id);
       },
     });
-
-    if (_wsDeleteMode) {
-      card.classList.add("ws-delete-mode");
-      card.removeAttribute("role"); // becomes a checkbox host, not a button
-      var chk = document.createElement("input");
-      chk.type = "checkbox";
-      chk.className = "ws-card-check";
-      chk.checked = !!_wsDeleteSelected[sess.ws_id];
-      var label = sess.alias || sess.title || sess.ws_id;
-      chk.setAttribute("aria-label", "Select " + label + " for deletion");
-      chk.onclick = function (e) {
-        e.stopPropagation();
-        if (chk.checked) _wsDeleteSelected[sess.ws_id] = true;
-        else delete _wsDeleteSelected[sess.ws_id];
-        card.classList.toggle("ws-selected", chk.checked);
-        updateWsDeleteBar();
-      };
-      card.insertBefore(chk, card.firstChild);
-      // Override the shared helper's onclick/onkeydown \u2014 in delete mode
-      // a card click toggles the checkbox instead of activating Resume.
-      card.onclick = function (e) {
-        if (e.target === chk) return;
-        chk.checked = !chk.checked;
-        chk.onclick(e);
-      };
-      card.onkeydown = function (e) {
-        if (e.key === "Enter" || e.key === " ") {
-          e.preventDefault();
-          chk.checked = !chk.checked;
-          chk.onclick(e);
-        }
-      };
-      if (_wsDeleteSelected[sess.ws_id]) card.classList.add("ws-selected");
-    }
-
+    _wsDeleteController.decorateCard(card, sess);
     c.appendChild(card);
   });
+  if (_wsDeleteController.inMode()) _wsDeleteController.refreshBar();
 }
 
+// HTML inline-onclick wrappers — keep the global names the existing
+// markup binds to (`onclick="startWsDeleteMode()"` etc.) and forward
+// to the controller.
 function startWsDeleteMode() {
-  _wsDeleteMode = true;
-  _wsDeleteSelected = {};
-  renderSavedWorkstreams(_wsSavedItems);
-  var btn = document.getElementById("ws-delete-btn");
-  if (btn) {
-    btn.textContent = "\u2715 Cancel";
-    btn.onclick = cancelWsDeleteMode;
-  }
-  var bar = document.getElementById("ws-delete-bar");
-  if (bar) bar.classList.add("visible");
+  _wsDeleteController.start();
 }
-
 function cancelWsDeleteMode() {
-  _wsDeleteMode = false;
-  _wsDeleteSelected = {};
-  renderSavedWorkstreams(_wsSavedItems);
-  var btn = document.getElementById("ws-delete-btn");
-  if (btn) {
-    btn.innerHTML = "&#x1f5d1; Delete";
-    btn.onclick = startWsDeleteMode;
-  }
-  var bar = document.getElementById("ws-delete-bar");
-  if (bar) bar.classList.remove("visible");
+  _wsDeleteController.cancel();
 }
-
-function updateWsDeleteBar() {
-  var count = Object.keys(_wsDeleteSelected).length;
-  var label = document.getElementById("ws-delete-bar-count");
-  if (label) label.textContent = count + " selected";
-  var delBtn = document.getElementById("ws-delete-bar-delete");
-  if (delBtn) delBtn.disabled = count === 0;
-  var selBtn = document.getElementById("ws-delete-bar-select-all");
-  if (selBtn) {
-    var allSelected =
-      count === _wsSavedItems.length && _wsSavedItems.length > 0;
-    selBtn.textContent = allSelected ? "Deselect All" : "Select All";
-  }
-}
-
 function toggleSelectAll() {
-  var allSelected =
-    Object.keys(_wsDeleteSelected).length === _wsSavedItems.length &&
-    _wsSavedItems.length > 0;
-  if (allSelected) {
-    _wsDeleteSelected = {};
-  } else {
-    _wsSavedItems.forEach(function (s) {
-      _wsDeleteSelected[s.ws_id] = true;
-    });
-  }
-  renderSavedWorkstreams(_wsSavedItems);
-  updateWsDeleteBar();
+  _wsDeleteController.toggleAll();
 }
-
-var _wsDeleteBatchTrap = null;
-
 function confirmWsDeleteSelection() {
-  var selected = Object.keys(_wsDeleteSelected);
-  if (!selected.length) {
-    showToast("No workstreams selected", "warning");
-    return;
-  }
-  var overlay = document.getElementById("ws-delete-overlay");
-  var countEl = document.getElementById("ws-delete-count");
-  var listEl = document.getElementById("ws-delete-list");
-  var errorEl = document.getElementById("ws-delete-error");
-  errorEl.textContent = "";
-  countEl.textContent =
-    selected.length + " workstream(s) will be permanently deleted:";
-  listEl.innerHTML = "";
-  selected.forEach(function (wsId) {
-    var item = _wsSavedItems.find(function (s) {
-      return s.ws_id === wsId;
-    });
-    var name = item ? item.alias || item.title || wsId : wsId;
-    var div = document.createElement("div");
-    div.className = "ws-delete-item";
-    div.textContent = name;
-    listEl.appendChild(div);
-  });
-  // Reset confirm button handler (may have been overwritten to "Close" by previous run)
-  var delBtn = document.getElementById("ws-delete-confirm-btn");
-  if (delBtn) {
-    delBtn.textContent = "Delete";
-    delBtn.disabled = false;
-    delBtn.classList.remove("ws-delete-close");
-    delBtn.onclick = confirmWsDelete;
-  }
-  var cancelBtn = document.getElementById("ws-delete-cancel-btn");
-  if (cancelBtn) cancelBtn.disabled = false;
-  overlay.style.display = "flex";
-
-  // Focus trap + Escape
-  if (_wsDeleteBatchTrap)
-    document.removeEventListener("keydown", _wsDeleteBatchTrap);
-  _wsDeleteBatchTrap = function (e) {
-    if (e.key === "Escape") {
-      e.preventDefault();
-      cancelWsDelete();
-      return;
-    }
-    if (e.key === "Tab") {
-      var box = document.getElementById("ws-delete-box");
-      var focusable = box.querySelectorAll("button:not(:disabled)");
-      var first = focusable[0];
-      var last = focusable[focusable.length - 1];
-      if (e.shiftKey && document.activeElement === first) {
-        e.preventDefault();
-        last.focus();
-      } else if (!e.shiftKey && document.activeElement === last) {
-        e.preventDefault();
-        first.focus();
-      }
-    }
-  };
-  document.addEventListener("keydown", _wsDeleteBatchTrap);
-  if (cancelBtn) cancelBtn.focus();
+  _wsDeleteController.confirmSelection();
 }
-
 function cancelWsDelete() {
-  document.getElementById("ws-delete-overlay").style.display = "none";
-  if (_wsDeleteBatchTrap) {
-    document.removeEventListener("keydown", _wsDeleteBatchTrap);
-    _wsDeleteBatchTrap = null;
-  }
+  _wsDeleteController.closeModal();
 }
-
 function confirmWsDelete() {
-  var selected = Object.keys(_wsDeleteSelected);
-  if (!selected.length) return;
-  var overlay = document.getElementById("ws-delete-overlay");
-  var errorEl = document.getElementById("ws-delete-error");
-  var listEl = document.getElementById("ws-delete-list");
-  var countEl = document.getElementById("ws-delete-count");
-  var delBtn = document.getElementById("ws-delete-confirm-btn");
-  var cancelBtn = document.getElementById("ws-delete-cancel-btn");
-  errorEl.textContent = "";
-
-  // Disable buttons during deletion
-  if (delBtn) {
-    delBtn.disabled = true;
-    delBtn.textContent = "Deleting...";
-  }
-  if (cancelBtn) cancelBtn.disabled = true;
-
-  var results = [];
-  var promises = selected.map(function (wsId) {
-    var shortId = wsId.substring(0, 8);
-    var item = _wsSavedItems.find(function (s) {
-      return s.ws_id === wsId;
-    });
-    var name = item ? item.alias || item.title || wsId : wsId;
-    var url = "/v1/api/workstreams/" + encodeURIComponent(wsId) + "/delete";
-
-    return authFetch(url, { method: "POST" })
-      .then(function (r) {
-        var status = r.status;
-        var contentType = r.headers.get("content-type") || "";
-        if (r.ok) {
-          results.push({ name: name, shortId: shortId, ok: true });
-          return;
-        }
-        // Read body as text first to avoid JSON parse errors
-        return r.text().then(function (body) {
-          var errMsg = shortId + ": HTTP " + status;
-          if (contentType.includes("json")) {
-            try {
-              var j = JSON.parse(body);
-              if (j.error) errMsg = shortId + ": " + j.error;
-            } catch (_) {
-              /* fall through */
-            }
-          } else if (body) {
-            errMsg = shortId + ": " + body.substring(0, 200);
-          }
-          results.push({
-            name: name,
-            shortId: shortId,
-            ok: false,
-            error: errMsg,
-          });
-        });
-      })
-      .catch(function (err) {
-        results.push({
-          name: name,
-          shortId: shortId,
-          ok: false,
-          error: shortId + ": " + err.message,
-        });
-      });
-  });
-
-  Promise.all(promises).then(function () {
-    // Rebuild the list with results
-    listEl.innerHTML = "";
-    results.forEach(function (r) {
-      var div = document.createElement("div");
-      div.className = "ws-delete-item" + (r.ok ? "" : " ws-delete-error");
-      div.textContent =
-        (r.ok ? "\u2713 " : "\u2717 ") +
-        r.name +
-        (r.error ? " — " + r.error : "");
-      listEl.appendChild(div);
-    });
-
-    var okCount = results.filter(function (r) {
-      return r.ok;
-    }).length;
-    var failCount = results.filter(function (r) {
-      return !r.ok;
-    }).length;
-    countEl.textContent = okCount + " deleted, " + failCount + " failed";
-
-    if (delBtn) {
-      delBtn.disabled = false;
-      delBtn.textContent = "Close";
-      delBtn.classList.add("ws-delete-close");
-      delBtn.onclick = function () {
-        cancelWsDelete();
-        cancelWsDeleteMode();
-        loadDashboard();
-      };
-    }
-    if (cancelBtn) cancelBtn.disabled = false;
-  });
+  _wsDeleteController.confirm();
 }
 
 // --- Workstream title management ---

turnstone/ui/static/index.html

@@ -363,17 +363,18 @@
     <!-- Delete workstreams confirmation modal (batch) -->
     <div
       id="ws-delete-overlay"
+      class="ws-delete-modal-overlay"
       style="display: none"
       role="dialog"
       aria-modal="true"
       aria-labelledby="ws-delete-title"
     >
-      <div id="ws-delete-box">
+      <div id="ws-delete-box" class="ws-delete-modal-box">
         <h3 id="ws-delete-title">Delete Workstreams</h3>
         <div id="ws-delete-error" role="alert" aria-live="assertive"></div>
         <p id="ws-delete-count"></p>
-        <div id="ws-delete-list"></div>
-        <div id="ws-delete-buttons">
+        <div id="ws-delete-list" class="ws-delete-modal-list"></div>
+        <div id="ws-delete-buttons" class="ws-delete-modal-buttons">
           <button
             id="ws-delete-cancel-btn"
             type="button"
@@ -383,6 +384,7 @@
           </button>
           <button
             id="ws-delete-confirm-btn"
+            class="ws-delete-confirm"
             type="button"
             onclick="confirmWsDelete()"
           >

turnstone/ui/static/style.css

@@ -642,6 +642,9 @@
 .msg.user {
   color: var(--fg-bright);
 }
+/* .msg.user-reminder lives in shared_static/chat.css so both the
+   interactive UI and the console coord viewer pick up the same
+   yellow themed bubble. */
 /* .msg.assistant / .msg.info / .msg.error alignment + baseline visuals
    come from shared_static/chat.css.  Interactive UI adds a pre-wrap
    override for info messages and a tightened tool-message shape with
@@ -1628,6 +1631,77 @@ body {
 .ts-approval-tool .tool-diff .diff-warn {
   color: var(--yellow);
 }
+/* memory/recall calls are background metadata — the audit trail is
+   valuable but they crowd the narrative when a workstream contains
+   dozens of them.  Dim by default; full opacity on hover/focus so
+   they remain inspectable without permanently competing for
+   attention.  General-sibling combinator (~) extends the fade past
+   any verdict-badge or output-warning sitting between the tool row
+   and its output, so the whole sub-tree fades together rather than
+   leaving a full-opacity badge stranded next to a dim row. */
+.ts-approval-tool[data-func-name="memory"],
+.ts-approval-tool[data-func-name="recall"] {
+  opacity: 0.55;
+  transition: opacity 120ms ease-out;
+}
+.ts-approval-tool[data-func-name="memory"]:hover,
+.ts-approval-tool[data-func-name="memory"]:focus-within,
+.ts-approval-tool[data-func-name="recall"]:hover,
+.ts-approval-tool[data-func-name="recall"]:focus-within {
+  opacity: 1;
+}
+.ts-approval-tool[data-func-name="memory"] ~ .tool-output,
+.ts-approval-tool[data-func-name="recall"] ~ .tool-output,
+.ts-approval-tool[data-func-name="memory"] ~ .media-embed,
+.ts-approval-tool[data-func-name="recall"] ~ .media-embed,
+.ts-approval-tool[data-func-name="memory"] ~ .output-warning,
+.ts-approval-tool[data-func-name="recall"] ~ .output-warning,
+.ts-approval-tool[data-func-name="memory"] ~ .tool-output-truncated,
+.ts-approval-tool[data-func-name="recall"] ~ .tool-output-truncated {
+  opacity: 0.55;
+  transition: opacity 120ms ease-out;
+}
+/* Reveal on hover OR focus-within across the entire dimmed
+   subtree.  Without :focus-within on the siblings, a keyboard user
+   tabbing into a link or collapsible toggle inside .tool-output
+   sees the content remain dimmed — a11y regression.  Cover the
+   warning + truncation pills too so they fully reveal alongside
+   the result they decorate. */
+.ts-approval-tool[data-func-name="memory"] ~ .tool-output:hover,
+.ts-approval-tool[data-func-name="recall"] ~ .tool-output:hover,
+.ts-approval-tool[data-func-name="memory"] ~ .tool-output:focus-within,
+.ts-approval-tool[data-func-name="recall"] ~ .tool-output:focus-within,
+.ts-approval-tool[data-func-name="memory"] ~ .media-embed:hover,
+.ts-approval-tool[data-func-name="recall"] ~ .media-embed:hover,
+.ts-approval-tool[data-func-name="memory"] ~ .media-embed:focus-within,
+.ts-approval-tool[data-func-name="recall"] ~ .media-embed:focus-within,
+.ts-approval-tool[data-func-name="memory"] ~ .output-warning:hover,
+.ts-approval-tool[data-func-name="recall"] ~ .output-warning:hover,
+.ts-approval-tool[data-func-name="memory"] ~ .output-warning:focus-within,
+.ts-approval-tool[data-func-name="recall"] ~ .output-warning:focus-within,
+.ts-approval-tool[data-func-name="memory"] ~ .tool-output-truncated:hover,
+.ts-approval-tool[data-func-name="recall"] ~ .tool-output-truncated:hover,
+.ts-approval-tool[data-func-name="memory"] ~ .tool-output-truncated:focus-within,
+.ts-approval-tool[data-func-name="recall"] ~ .tool-output-truncated:focus-within {
+  opacity: 1;
+}
+/* Truncation indicator — the persisted tool result is clamped at
+   2000 chars per row in storage; surface that on replay so users
+   know they're seeing a clipped view rather than the full output
+   the live session saw.  Aligns with .output-warning's left gutter
+   (margin-left: 16px) and uses transparent background + dim border
+   so it reads as quiet metadata rather than a foreign element. */
+.tool-output-truncated {
+  display: inline-block;
+  margin-top: 4px;
+  margin-left: 16px;
+  padding: 1px 6px;
+  font-size: 10px;
+  color: var(--fg-dim);
+  background: transparent;
+  border-radius: 3px;
+  border: 1px solid var(--fg-dim);
+}
 /* .ts-approval (chat.css) stacks its children with flex gap, so a
    border-top on the body would float above a strip of container
    background instead of sitting flush against the previous tool row.
@@ -2363,224 +2437,10 @@ audio.media-player {
   color: var(--accent);
   margin: 0;
 }
-.ws-delete-btn {
-  background: transparent;
-  border: 1px solid var(--border);
-  border-radius: var(--radius);
-  color: var(--fg-dim);
-  font-size: 12px;
-  padding: 4px 10px;
-  cursor: pointer;
-  transition:
-    color 0.15s,
-    border-color 0.15s;
-}
-.ws-delete-btn:hover {
-  color: var(--red);
-  border-color: var(--red);
-}
-/* .dashboard-cards / .dashboard-card / .card-title / .card-meta moved to
-   /shared/cards.css so console (Saved Coordinators) and ui/static (Saved
-   Workstreams) share one source of truth for the basic card primitive.
-   Delete-mode rules stay below — they're ui/static-only until coordinator
-   gets the same UX. */
-
-/* Delete mode */
-.dashboard-card.ws-delete-mode {
-  cursor: pointer;
-}
-.dashboard-card.ws-delete-mode:hover {
-  border-color: var(--red);
-  background: rgba(248, 113, 113, 0.04);
-}
-.dashboard-card.ws-delete-mode.ws-selected {
-  cursor: default;
-}
-.dashboard-card.ws-delete-mode.ws-selected:hover {
-  border-color: var(--red);
-  background: rgba(248, 113, 113, 0.08);
-}
-[data-theme="light"] .dashboard-card.ws-delete-mode:hover {
-  background: rgba(220, 38, 38, 0.04);
-}
-[data-theme="light"] .dashboard-card.ws-delete-mode.ws-selected:hover {
-  background: rgba(220, 38, 38, 0.08);
-}
-.ws-card-check {
-  position: absolute;
-  top: 8px;
-  right: 8px;
-  width: 18px;
-  height: 18px;
-  accent-color: var(--red);
-  cursor: pointer;
-  z-index: 1;
-  opacity: 0;
-  animation: ws-check-fadein 0.2s ease-out forwards;
-}
-@keyframes ws-check-fadein {
-  to {
-    opacity: 1;
-  }
-}
-.dashboard-card.ws-selected {
-  border-color: var(--red);
-  background: rgba(248, 113, 113, 0.08);
-}
-[data-theme="light"] .dashboard-card.ws-selected {
-  background: rgba(220, 38, 38, 0.08);
-}
-.ws-delete-bar {
-  display: none;
-  align-items: center;
-  gap: 12px;
-  margin-top: 12px;
-  padding: 8px 12px;
-  background: var(--bg-surface);
-  border: 1px solid var(--border);
-  border-radius: var(--radius);
-}
-.ws-delete-bar.visible {
-  display: flex;
-  animation: ws-bar-slide 0.2s ease-out;
-}
-@keyframes ws-bar-slide {
-  from {
-    opacity: 0;
-    transform: translateY(-8px);
-  }
-  to {
-    opacity: 1;
-    transform: translateY(0);
-  }
-}
-@media (prefers-reduced-motion: reduce) {
-  .ws-card-check {
-    animation: none;
-    opacity: 1;
-  }
-  .ws-delete-bar.visible {
-    animation: none;
-  }
-}
-.ws-delete-bar .ws-delete-count-label {
-  font-size: 12px;
-  color: var(--fg-dim);
-}
-.ws-delete-bar .ws-delete-bar-btn {
-  margin-left: auto;
-  background: var(--red);
-  color: #fff;
-  border: none;
-  border-radius: var(--radius);
-  padding: 6px 16px;
-  font-size: 12px;
-  font-weight: 600;
-  cursor: pointer;
-  transition: filter 0.15s;
-}
-.ws-delete-bar .ws-delete-bar-btn:hover:not(:disabled) {
-  filter: brightness(1.1);
-}
-.ws-delete-bar .ws-delete-bar-btn:disabled {
-  opacity: 0.4;
-  cursor: not-allowed;
-}
-.ws-delete-bar .ws-delete-cancel-btn {
-  background: transparent;
-  color: var(--fg-dim);
-  border: 1px solid var(--border);
-  border-radius: var(--radius);
-  padding: 6px 12px;
-  font-size: 12px;
-  cursor: pointer;
-}
-.ws-delete-bar .ws-delete-cancel-btn:hover {
-  color: var(--fg-bright);
-  border-color: var(--border-strong);
-  background: var(--bg-highlight);
-}
-.ws-delete-bar .ws-delete-selectall-btn {
-  background: transparent;
-  color: var(--fg-bright);
-  border: 1px solid var(--border);
-  border-radius: var(--radius);
-  padding: 6px 12px;
-  font-size: 12px;
-  font-weight: 500;
-  cursor: pointer;
-}
-.ws-delete-bar .ws-delete-selectall-btn:hover {
-  border-color: var(--border-strong);
-  background: var(--bg-highlight);
-}
-
-/* Delete modal */
-#ws-delete-overlay {
-  position: fixed;
-  inset: 0;
-  background: rgba(0, 0, 0, 0.6);
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  z-index: 10000;
-}
-#ws-delete-box {
-  background: var(--bg-surface);
-  border: 1px solid var(--border);
-  border-radius: var(--radius);
-  padding: 24px;
-  max-width: 480px;
-  width: 90%;
-}
-#ws-delete-box h3 {
-  margin: 0 0 12px;
-  font-size: 16px;
-  color: var(--fg-bright);
-}
-#ws-delete-list {
-  max-height: 200px;
-  overflow-y: auto;
-  margin: 12px 0;
-}
-#ws-delete-list .ws-delete-item {
-  padding: 6px 0;
-  font-size: 13px;
-  color: var(--fg-bright);
-  border-bottom: 1px solid var(--border);
-}
-#ws-delete-list .ws-delete-item:last-child {
-  border-bottom: none;
-}
-#ws-delete-list .ws-delete-item.ws-delete-error {
-  color: var(--red);
-}
-#ws-delete-buttons {
-  display: flex;
-  gap: 8px;
-  justify-content: flex-end;
-  margin-top: 16px;
-}
-#ws-delete-buttons button {
-  padding: 8px 20px;
-  border-radius: var(--radius);
-  font-size: 13px;
-  font-weight: 500;
-  cursor: pointer;
-  border: 1px solid var(--border);
-  background: transparent;
-  color: var(--fg-bright);
-}
-#ws-delete-buttons button:last-child {
-  background: var(--red);
-  color: #fff;
-  border-color: var(--red);
-}
-#ws-delete-buttons button.ws-delete-close {
-  background: transparent;
-  color: var(--fg-bright);
-  border-color: var(--border);
-}
+/* .dashboard-cards / .dashboard-card / .card-title / .card-meta and the
+   delete-mode + modal rules are owned by /shared/cards.css so console
+   (Saved Coordinators) and ui/static (Saved Workstreams) share one source
+   of truth. */
 
 /* Server dashboard row — clickable */
 .dash-row {
@@ -2686,38 +2546,13 @@ audio.media-player {
   }
 }
 
-/* ==========================================================================
-   Verdict badges (intent judge)
-   ========================================================================== */
-.verdict-badge {
-  padding: 4px 10px;
-  font-size: 11px;
-  font-weight: 600;
-  display: flex;
-  align-items: center;
-  gap: 8px;
-  margin-top: 2px;
-  /* No top separator — .ts-verdict-badge (chat.css) shrinks to
-     max-content width, and a 1px border-top would extend only under
-     the badge text and read as a truncated line. */
-}
-.verdict-low {
-  color: var(--green);
-  border-left: 3px solid var(--green);
-}
-.verdict-medium {
-  color: var(--yellow);
-  border-left: 3px solid var(--yellow);
-}
-.verdict-high {
-  color: var(--red);
-  border-left: 3px solid var(--red);
-}
-.verdict-critical {
-  color: var(--red);
-  border-left: 3px solid var(--red);
-  background: rgba(255, 80, 80, 0.05);
-}
+/* Verdict-badge styling lives in the color-mix block further down
+   in this file (.verdict-badge.verdict-{low,medium,high,critical}).
+   The earlier flat-palette duplicate that lived here was removed —
+   two competing .verdict-badge rule sets caused subtle cascade drift
+   (the color-mix block won for backgrounds, the flat one won for the
+   bare .verdict-low/medium/high/critical class names) which made
+   tweaks fragile. Single source of truth now. */
 
 .verdict-detail {
   padding: 6px 12px;

uv.lock

@@ -2533,7 +2533,7 @@ wheels = [
 
 [[package]]
 name = "turnstone"
-version = "1.5.1"
+version = "1.5.5"
 source = { editable = "." }
 dependencies = [
     { name = "alembic" },