Commit Graph

212 Commits

Author SHA1 Message Date
Patrick Buckley b38e9be17c docs(session): scope the zero-band geometry claims to the default compact threshold
The drain comment and the architecture docs stated the zero-budget band
relative to the auto-compact threshold as if 0.8 were universal
("well below the auto-compact threshold"); with an operator-set
auto_compact_pct under the ~70% zero point the claim reads inverted.
State the geometry against the DEFAULT threshold and make explicit what
was always true of the mechanism: the trigger's predicate is the
exhausted budget itself, never a threshold, so with low thresholds the
owed path compacts first and the trigger is its bail/insufficient
backstop.
2026-07-21 17:48:09 -07:00
Patrick Buckley 6c4c848a08 fix(session): survive tool-result truncation at zero context budget (#883)
At an exhausted context budget the drain loop replaced every tool result
with a placeholder that read as a successful-but-trimmed call. For
structural results — spawn_workstream's ws_id, the tasks scratchpad —
the model lost the handle orchestration depends on and silently
stalled, while the UI (told the real summary before the drain) kept
showing success. Worse, the budget zeroes near 70% fullness when
max_tokens ≥ context_window/4, well below the 80% auto-compact
threshold, so a stalled coordinator could sit in that band indefinitely
with no compaction ever firing.

Three guarantees at the truncation seam, one renewal trigger at the
drain:

- structural-tool and error results get a guaranteed 2048-char
  admission floor (head+tail beyond it) — never the zero-budget drop
- any result at or under the floor passes verbatim (denial notices,
  spawn acks: never destroy what is smaller than the guarantee)
- bulky non-structural results get an explicit drop notice stating the
  call RAN but its output could not be admitted — never a trim
  impersonation the model cannot distinguish from success
- a zero truncation budget triggers one mid-turn compaction (no
  threshold_pct — none was evaluated, same rule as the ctx-overflow
  retry), closing the 70-80% band where the budget zeroed but
  compaction was never owed

Background-bash spawn acks ride the small-result pass; a name-keyed
floor cannot distinguish them from foreground bash — see #891.
2026-07-21 17:48:09 -07:00
github-actions[bot] e4604c278e chore: download vendored JS files 2026-07-20 07:21:23 -07:00
Patrick Buckley 8d1190d17a docs(tools): apply review round-1 findings (cwd notes)
- docs/tools.md: sync the tool-JSON metadata-keys table to _META_KEYS —
  it had drifted to 3 of 8 keys (coordinator, interactive, kind_variants
  were already missing; cwd_note/workspace_note are new).
- tests: cover the third note-rebuild trigger (_drop_mcp_surface) with a
  count==1 assertion on both lanes, and pin the deliberately uniform
  workspace_note wording across the fs tools so a one-file reword cannot
  drift the copies apart.
2026-07-19 19:09:58 -07:00
Patrick Buckley 460308241d fix(tools): lower working directory and workspace into fs tool descriptions
The process cwd was nowhere in the model's context: shells start in the
inherited process cwd (spawn_group_leader passes no cwd), relative file
paths resolve against it, but nothing told the model where it was
standing — in stock Docker every shell ran in /data while user files sat
in the /workspace mount, and the model's only recourse was to probe with
pwd (#857, #833).

Lower both facts into the tool schemas, where they gate intrinsically on
tool availability (a persona without fs tools carries no note, and
coordinator envelopes are untouched):

- tools/*.json: cwd_note/workspace_note metadata templates on bash,
  read_file, write_file, edit_file, search, diff_file; bash also states
  the fresh-shell-per-call semantics (cd does not persist) and drops a
  stale reference to the removed man tool.
- tools.apply_cwd_context(): renders the notes into descriptions;
  deep-copies noted tools (the fs dicts are shared across
  TOOLS/INTERACTIVE_TOOLS/TASK_AGENT_TOOLS and aliased through
  merge_mcp_tools), passes note-less tools through by reference.
- ChatSession._apply_cwd_notes(): wraps every fresh interactive build of
  _tools AND _task_tools (construction, MCP catalog change, MCP
  disconnect) — assignment-time, so the wire tools block stays
  byte-stable for provider prompt caches. os.getcwd() is OSError-guarded
  (MCP rebuilds run on a background thread; eval tears down its
  workdir); the workspace hint drops when the dir is missing or equals
  the cwd. Task-agent sub-agents carry their own notes via _task_tools,
  independent of parent persona visibility.
- config.get_workspace_dir(): [tools] workspace_dir with
  TURNSTONE_WORKSPACE env fallback (searxng pattern), informational
  only — no chdir, no path confinement (per-workstream working-dir
  grants are a separate planned feature).
- Dockerfile: ENV TURNSTONE_WORKSPACE=/workspace so stock deployments
  surface the mount with zero operator config.
- docs/docker.md: document the /data working directory, the
  working_dir: /workspace compose override as the operator-level fix,
  and the SQLite-fallback-DB-in-cwd caveat.

Closes #857
2026-07-19 19:09:58 -07:00
Patrick Buckley 1224b02d03 fix(compaction): review round 8 — seam obligations become primitives
Eight rounds of findings against the defer-and-drain seam shared one
generator: N sites each hand-copying M obligations (spawn discipline,
the order-barrier pair, backpressure, best-effort emission, the client
settle matrix), with every review finding an empty (site x obligation)
cell. This round makes each obligation a single primitive:

- The order barrier is Workstream.send_barrier_active() — one
  definition of the two-term pair (pending entries OR drain alive),
  consulted by the /send route, the coordinator adapter, and the
  queued-nudge wake gate, which previously carried only the list term
  and let a synthetic wake jump an acknowledged send during the
  claimed-entry window. _PendingSend moved to workstream.py beside the
  invariant that justifies the drain-alive term; the pending fields got
  precise types and worker_kind became a Literal, so a typo'd
  "command" comparison is now a type error instead of a silently
  never-firing defer guard.
- _defer_send probes the barrier before constructing anything, bounds
  acceptance at 10 pending (the interjection queue's own backpressure
  contract — unbounded acceptance pinned message + attachment bytes
  per entry for a whole command window and then ran one unattended
  turn each), and spawns the drain with rollback: a Thread.start
  failure pops the just-accepted entry and answers the retryable
  queue_full instead of 500ing after registration (a phantom the
  client could neither see nor retract, dispatched later as duplicate
  turns). start() deliberately stays inside the lock, unlike
  session_worker's outside-lock discipline: this slot is
  is_alive()-gated, false for a constructed-but-unstarted thread, so
  an outside-lock start would open a double-drain window.
- A /command whose worker never spawned answers 503
  {"status": "error"} (spec + docs + a pane error arm) instead of the
  generic 200 ok that told SDK callers their /clear ran.
- The compaction lifecycle emitter is raise-proof at its single
  dispatch tail: a raising duck-typed hook degrades to a lost render,
  never a lost end event — previously a raising on_error or a raising
  failed-end emit left every pane a frozen progress bar, and a raising
  SUCCESS end after the committed swap fabricated a failed end.
- The client settle matrix lives once: composer_queue's
  settleSendResponse owns every /send response arm for both panes
  (the near-verbatim twins were already drifting), parsePriority is
  shared, and the busy stamp is centralized in setBusy(b, source) with
  "server" as the fail-safe default. Deferred sends release the
  composer (no worker exists for them; retracting the chip no longer
  strands the pane in Stop mode), queue_full on an idle-looking pane
  removes the optimistic bubble and restores busy (the refusal can now
  fire with no worker and no drain to ever emit a state event), and
  the pre-bind settle buffer is TTL-based — a burst of deferred
  dispatches parked this tab's own raced settle first, where the old
  size cap evicted exactly it.
- The command backstop / console proxy timeout inequality is enforced
  by a test importing both named constants (both proxy_client
  constructions, startup and the mTLS re-create); the compaction card
  wears blue (magenta is reserved for the MCP surface); the redundant
  TerminalUI.on_compaction override is gone (the inherited protocol
  default is the policy site).
2026-07-17 11:28:44 -07:00
Patrick Buckley fd5d3efb43 fix(compaction): review round 7 — drain crash/order/settle rows, protocol-default fallback, bool event-id guard
Completes the defer-and-drain seam against the matrix rows round 6 never
enumerated (the defer contract itself took no hits):

- Crash row: a claimed entry survives a dispatch crash — the
  per-iteration handler re-inserts it at head (claim-flagged so a
  claim-section failure can't duplicate it), backs off ~1s, retries.
  The last-resort handler spawns no successor (Thread.start fails under
  the exact exhaustion that reaches it): the route's ensure-drain stays
  the single spawn site, so single-flight is structural and a dead
  drain revives on the next defer.
- Order row: the pending list is the order authority. The /send route
  pre-checks pending/drain-alive under the same lock acquisition that
  appends (one _defer_send helper serves the barrier and command-window
  triggers); the coordinator adapter refuses via its return value; the
  queued-nudge wake gate yields to pending sends and is re-armed by the
  drain's clean exit — which covers lists emptied by pure retraction —
  as well as every deferred turn's exit; retry-after-rewind is a
  documented accepted overtake; init/create is fresh-ws-by-construction.
- Client settle row: queued responses carry "deferred": true
  (SendResponse + regenerated openapi-server.json, status enumeration
  completed); bind(el, msgId, {deferred, attachedCount}) replaces the
  _deferredAttachments expando; the idle sweep skips deferred and
  unbound chips; the shared dispatch attempt emits pane-tier
  message_dispatched (folded: true for interjection fold-ins — the chip
  clears only its deferred flag and keeps a live x while DELETE still
  genuinely retracts); settles that beat bind() park in a bounded
  buffer; an idle-thinking pane retro-converts its optimistic bubble
  into a real queued chip instead of presenting a parked message as
  sent. Rejection polling waits on the slot flags — one dispatch
  attempt per slot-state change, not 4 Hz.
- SessionUI.on_compaction's protocol stub became a real default body
  (the classic on_info rendering): explicit subclasses inherit protocol
  members as real methods, which defeated _compaction_event's getattr
  fallback for exactly the pre-1.8 embedders it serves.
- _coerce_event_id() rejects bools (isinstance(True, int) is True) at
  all three duck-typed event-id coercions: the compaction marker stamp,
  on_system_turn's persisted return, and _ui_event_id.
- Quick-command backstop 60s -> 25s, under the console proxy's 30s so
  the degraded "running" answer can traverse a proxied pane (which now
  surfaces it); /resume docs drop the fictional history SSE event
  (clear_ui + REST re-fetch is the contract); /send response docs match
  the wire.
2026-07-17 11:28:44 -07:00
Patrick Buckley e99673eb0c fix(compaction): review round 6 — defer-and-drain send windows, workstream-scoped notify, ERROR badge survives /compact
Replace park-and-abandon /send semantics with defer-and-drain: a send
landing in a command window is answered {status: queued, msg_id}
immediately and dispatched full-fidelity by a per-workstream drain
thread when the window closes. Parking encoded client disconnect as
message retraction — true only for the composer's ✕-abort; every
bounded caller (coordinator client and console proxy at timeout=30,
SDKs, stock proxies) timed out and lost its message for the whole
window, and the compensating client machinery was racy (one-shot
sendAbortMs sample) and over-broad (_sendAbort fired on the
interjection path, dispatching dismissed messages while showing a
connection error). Dismissal is now uniformly bind() → DELETE, with a
fall-through that retracts pending entries; retracting an
attachment-bearing deferred send surfaces the discarded-attachments
consequence. The drain claims entries under ws._lock immediately
before dispatch (DELETE can never remove an in-flight message),
refuses the truncating interjection fallback for oversized or
attachment entries atomically inside the enqueue callback, and never
gives up while the workstream lives; durability is documented as
node-local at-most-once. sendAbortMs, _sendAbort, the 600s bound and
the park loop are deleted; route and drain share one dispatch
implementation (spawn metrics included).

Also: the initial-send completion notify is un-gated from slot
ownership (_fire_notify_targets has exactly one call site — successor
turns never notify, so the round-5 guard prevented a duplicate that
cannot exist while converting force-cancel into permanent notification
loss for scheduled workstreams); /compact on an ERROR workstream
restores the badge instead of stamping idle over it; duck-typed
SessionUIs without on_compaction get the classic on_info lines back
via a shared renderer (superseded OK ends included — a committed swap
must never be silent; pre-1.8 SSE clients are deliberately not
dual-emitted, documented as a 1.8 breaking change); failed-end notice
suppression is computed once by the emitter as a notice bool on the
end event (SDK py+ts), replacing the hand-synced cli/JS policy while
the panes keep their pane-local card-ownership clause.
2026-07-17 11:28:44 -07:00
Patrick Buckley 1dbf7f410c feat(compaction): lifecycle events, web progress card, history re-render
Compaction becomes visible: a first-class 'compaction' SSE lifecycle
(start/progress/end, compaction_id-correlated, superseded-flagged ends)
replaces the loose info lines; both web panes render a progress-bar card
that settles into a persistent result card, re-rendered after reload via
the /history projection of the compaction marker row. Slash commands echo
as command chips instead of fake user turns.

The enabling rework: /command dispatches onto the workstream worker slot
(the old inline path blocked the node's event loop for whole compactions
and let /clear interleave with live turns). Busy refusals answer 409;
quick commands are awaited loop-natively with a 60s backstop; /compact is
fire-and-forget. Sends during a command window park in the /send route
and dispatch full-fidelity afterwards — the interjection queue (length
cap, cross-user guard, identity-swap hazards) is unreachable there — with
a compaction-aware client abort bound shared by both panes. compact_now()
carries send()'s full generation discipline; Stop aborts the in-flight
summary HTTP stream via a generation-scoped cancel ref; force-abandoned
compactions retire at their next checkpoint and their stragglers are
fenced off every surface (panes, pill latch, CLI). Every session retry
backoff is cancel-aware via one shared helper. Docs, OpenAPI spec, and
both SDKs updated.

Verified: 9457-test non-live suite, JS pin suites, headless-Chrome
reducer harness; five unprimed multi-agent review rounds (correctness
trend 15/6/6/4/4) with plan-level design passes on every fix round.
2026-07-17 11:28:44 -07:00
Patrick Buckley f8f191686f fix(mcp): review round 2 — busy-skip the refresh pass, fail-fast list pairs, health-tick refresh retry
- _refresh_server never parks on a held connect lock: the holder is
  itself a catalog publisher whose publish supersedes the pass, and
  parking burned refresh_sync's whole 30s budget on ONE busy server (a
  reconnect attempt holds the lock up to 45s), failing the operator
  pass for every healthy server queued behind it. Busy → skip (None),
  no publish, no status writes; the identity/state recheck stays as
  belt-and-braces for the one-tick check→acquire race.
- _list_resource_pair: the ONE copy of the paired resources/templates
  list protocol (both twins). Fail-fast — a fast real error (auth /
  method rejection) surfaces as ITSELF instead of being masked behind
  a hung sibling's eventual 30s TimeoutError — with the survivor
  CANCELLED and REAPED inside the timeout scope, never left detached
  on the shared session.
- Health-tick refresh retry: there is NO periodic refresh pass
  (removed in eb2a119d; the docs still claimed the 4h tier — fixed),
  so a push refresh that failed while the transport stayed up had no
  automatic recovery and the shared catalog stayed stale for every
  user until an operator intervened. Failures and busy-skips arm
  _static_refresh_retry via the shared recorder; the health tick
  drains it with one bounded, lock-serialized full pass per tick;
  success, session drops, removal, and the post-reconnect spawns
  clear it. This also un-latches the error pill: the retry's
  completion clears it within a tick.
- _record_refresh_failure: the bearer-redaction policy (type +
  message, never exc_info) lives exactly once; all three
  refresh-failure sites route through it.
- Static runner discards its coalesce marker only AFTER the
  lock-identity check: on the superseded path a marker present in the
  set belongs to the re-added generation's parked runner, and
  discarding it would mint duplicates past the one-parked-runner
  bound (the pool runner deliberately differs — nothing else clears
  pool markers, so its marker is its own to release).
- _clear_static_push_state: the ONE (server, kind) keyspace walk for
  stamps + retry flag (+ markers on removal).
- Tests: busy-skip, superseded-no-status, fail-fast + reap (<5s
  bound), retry arm/drain/re-arm/clear quartet, logged-wrapper
  contract updated to the shared recorder's arg shape; vacuous
  stamp-math test deleted (behavioral per-kind coverage retained);
  _free_port/_wait_tcp_ready/_wait_session_live hoisted to conftest
  for both live tests.

Refs #839
2026-07-14 11:39:25 -07:00
Patrick Buckley 747177a76c fix(providers): review round 9 — orphan/harvest collision, shared shim gate, retired-id rationale
Correctness:
- Responses: orphan argument deltas (streamed without any
  output_item.added) now count as a streamed tool-call signal, so the
  terminal harvest stands down instead of re-emitting the same call
  onto the same slot — the reproduced collision concatenated the
  arguments JSON into an unparseable double copy.

Cleanup / documentation:
- finish_shim_due in _protocol is THE gate for the lax-server finish
  shim — one predicate (and one definition of 'delivered output') for
  all three adapter families, so the same capability flag cannot
  acquire per-family completion semantics.
- The Responses error/response.failed branches share one failure tail
  (only code/message extraction differs) — the same server failure can
  never become retryable through one event type and fatal through the
  other, pre- or post-terminal.
- _format_refusal pins the refusal rendering the streamed event and
  the terminal harvest both use.
- The capability-table floor comment and CHANGELOG Removed entry now
  state the real rationale: OpenAI has RETIRED the pruned ids from the
  API — the rows described unreachable contracts, not unpopular ones.
- CHANGELOG names the stream-entitlement break class (verified-org
  streaming, pre-stream_options gateway api-versions) with its
  serving-side remediation; deliberately no non-streaming fallback.
- docs/architecture.md retry section describes the collapsed
  transport: the two stacked retry ladders, IncompleteStreamError /
  ResponsesStreamFailedError retryability, finish_reason_optional
  remediation; stale non-streaming mentions updated (+ puml).
- Anthropic whole-block emission carries its residual hybrid-gateway
  bet as an explicit comment.

Held on standing rulings: post-finish usage forfeiture (keep result +
warn, rounds 4/8), session merge_usage twin and StreamAbortRef twin
(#832), stream_options wire delta (round 2, caveat now names Azure).
2026-07-13 22:39:19 -07:00
Patrick Buckley 3ffa8b9057 fix(providers): review round 2 — complete-or-error drain, code-gated retries, truncation-safe blocks
Correctness (3 confirmed + 2 plausible, all fixed):

- drain_stream now raises typed, retryable IncompleteStreamError when a
  stream exhausts without any finish reason — every adapter emits one on
  a healthy stream, so its absence means the generation died
  mid-response behind a cleanly-closing proxy.  This restores the
  retired transport's complete-or-error contract (a half-generated
  compaction summary was previously returned as finish=stop and stored,
  silently replacing real history) and DELETES round 1's suffix-info
  fold: with no finish-less success path there is nothing to classify,
  so a trailing status ping can never be stored as content either.
- Index-degenerate parallel tool calls get distinct slots: a delta whose
  id differs from its slot's opens a new call (id-less fragments still
  follow their index's current call), so historical compat servers that
  emit every parallel call at index 0 no longer fuse distinct calls
  into concatenated garbage arguments.  Result order stays index-sorted
  (stable) like the retired array parse.
- response.failed retryability is code-gated: only transient codes
  (server_error, rate_limit_exceeded) raise the retryable typed error;
  deterministic rejections (invalid prompt, image fetch, policy) raise
  plain RuntimeError and stop retry loops on attempt zero instead of
  running the full backoff ladder against a doomed request.
- Terminal Responses events rebuild provider_blocks from
  response.output when present: the item being generated at
  max_output_tokens truncation never receives output_item.done, and
  storing a reasoning item without its required following item made the
  next turn's replay a 400.
- merge_usage's base case uses dataclasses.replace so a future UsageInfo
  field can't be silently zeroed on drained lanes.

Cleanup: run_abortable_with_deadline bundles the three-point abort
wiring (ref + cancel_ref + on_abandon) so it cannot be half-wired —
both judges converted; scripted_chat_client hoists the 14 chat-lane
fake_create closures (call scripts + .calls recording replace per-test
counter cells); fake_chat_stream gains reasoning=, collapsing the
reasoning-capture suite's hand-rolled chunk shape; FakeAnthropicBlock
hoists the duplicated _Block test class; the class and judge PlantUML
diagrams drop the retired create_completion flow.

Also converts test_model_registry's agent-model fakes, which returned
legacy response objects that iterated as EMPTY streams — they only
passed through the old drain's silent finish=stop default, exactly the
hazard the new gate exists to catch.
2026-07-13 22:39:19 -07:00
Patrick Buckley 08580f25f9 fix(providers): review round 1 — streaming parity gaps the collapse exposed
Correctness (4 confirmed + 1 plausible fixed, 2 accepted+documented):

- Anthropic _iter_anthropic_stream handles citations_delta: text-block
  citations now ride the raw block into provider_blocks, as replay
  requires (the retired non-streaming lane preserved them via
  model_dump; the streaming lane dropped them — a pre-existing main-loop
  gap the collapse would have extended to single-shot lanes).
- Anthropic text blocks separate with "\n" at each subsequent block
  start, restoring the retired lane's "\n".join rendering on drained
  lanes AND un-fusing streamed web-search responses in the chat loop.
- response.failed raises typed ResponsesStreamFailedError, listed in the
  provider's retryable_error_names — retry loops treat an in-band
  failure like the wire errors it stands in for instead of
  hard-stopping on a bare RuntimeError (judges keep their heuristic
  fallback after retries).
- drain_stream folds a finish-less stream's terminal citations footer
  (suffix rule: pre-finish info invalidated by any later payload), so
  lax compat servers that never send finish_reason keep their Sources.
- usage max-merge extracted as merge_usage() in _protocol.py — the one
  definition drain uses now and the session's inline consumer adopts on
  #832.

Accepted + release-noted instead of coded around: strict pre-2024
compat servers that 400 on stream_options (such a server already cannot
serve the chat loop; CHANGELOG caveat extended), and repeated-index
parallel tool-call merging on legacy compat servers (identical to the
main loop's accumulator semantics; a shared guard belongs in the #832
unification).

Cleanup: run_with_deadline grows on_abandon (best-effort, cannot mask
the deadline error) and both judges drop the copy-pasted abort
choreography; StreamAbortRef documents the _CancelRef adoption plan;
test_model_turn's fake replays through the shared as_stream adapter;
docs/architecture.md drops the retired Protocol row.

Tests: refusal handler pinned (was advertised, untested); typed-failed
retryability; citations capture; text-block separator (plus the mixed
text+search expectation updated for the separator chunk); finish-less
citation fold; on_abandon firing matrix; StreamAbortRef arrival race.
2026-07-13 22:39:19 -07:00
Patrick Buckley 9391509e85 fix(oidc): trust Entra's graph.microsoft.com userinfo out of the box
Microsoft Entra's discovery document advertises userinfo_endpoint on graph.microsoft.com — a host distinct from the login.microsoftonline.com issuer — so discover_oidc's cross-host guard rejected it and disabled OIDC unless the operator set trusted_endpoint_hosts. Add login.microsoftonline.com to the built-in KNOWN_TRUSTED_OAUTH_ENDPOINT_HOSTS allow-list (mirroring the Google entry) so Azure AD OIDC works with no extra configuration. Surfaced by the live obo integration test.
2026-07-12 19:03:35 -07:00
Patrick Buckley d2e69ca527 fix(mcp): coherent obo auth-type carry-over + honest error affordances
Round-2 review follow-up. The headline is a redesign of the OAuth
column carry-over so scopes/audience can no longer leak or vanish across
an auth-type flip:

- oauth_audience and oauth_scopes keep their meaning only WITHIN an auth
  type (a resource indicator vs. an IdP app id; AS-consent scopes vs. an
  rfc8693 exchange scope). On any oauth_user<->oauth_obo flip they are
  now recomputed from the request (present -> value, absent -> NULL) and
  never carried from the old row. A shared _oauth_columns_to_clear policy
  drives both the create and update handlers. No-op normalization of a
  re-sent equal value applies only to same-type edits.
- The console form clears both semantic fields when the auth type
  changes and always submits the visible values; the previous
  "omit unchanged scopes" logic collided with the backend's flip
  handling and could silently drop or carry scopes.

Write-time validation now rejects oauth_obo rows that can never mint —
OIDC disabled/unconfigured, or an invalid obo_grant_profile — instead of
letting them surface per-dispatch as a retryable transient that never
heals.

Honest failure affordances for sign-in passthrough (no per-server
consent flow exists):

- the token_revoked audit fires only when a row was actually deleted, so
  a permanent mint rejection against a surviving credential no longer
  appends a bogus revocation on every post-cooldown dispatch/prime;
- the 403 insufficient-scope detail and the chat error card's action
  button are now auth-model-aware — obo errors point at the
  administrator rather than a dead-end re-consent, and the Connect button
  renders only when a real consent URL is present;
- the read-side freshness gate now enforces scopes as well as audience,
  so an rfc8693 scope narrowing takes effect on the next dispatch even if
  the best-effort admin cache purge failed.

Cleanups: the five decrypt-failure result constructions collapse into
_decrypt_failure_result; the cleared-pairs TTL bookkeeping into
_mark_pending_consent_cleared; drop the dead USER_SCOPED_AUTH_TYPES
re-export from mcp_oauth; correct the now-bidirectional oidc<->mcp_oauth
lazy-import note. Docs updated for the flip semantics and the OIDC
prerequisite.
2026-07-12 19:03:35 -07:00
Patrick Buckley 32c76499fa fix(mcp): harden obo mint path and admin lifecycle after review
Mint engine: guard the credential-rotation persist so a storage blip
cannot escape the classified-result contract mid-mint (and cannot brick
the user's other obo servers on strict-rotation IdPs); stop borrowing
the login flow's httpx client across event loops — mints use a transient
per-request client (obo_http_client remains as a test seam); retry OIDC
discovery at runtime (cooldown-gated, single-flight) so a node that
booted during an IdP outage can mint again without a restart; key the
under-lock force-refresh reuse gate on created, which delete+create
makes the mint time (obo rows never set last_refreshed, so the copied
oauth_user gate never fired and serialized waiters each re-redeemed).

Cross-node consent badges: the cleared-pairs set becomes a TTL map with
bounded growth, so a badge written by another node after this node's
last clear self-heals within one TTL window instead of surviving until
a restart.

Admin lifecycle: purge the mint cache when oauth_scopes changes on an
obo row (an rfc8693 privilege reduction now applies immediately, like
audience changes); normalize no-op scope/audience re-sends out of
updates — the admin form re-submits pre-filled fields on every save,
which both re-triggered purges and made entra-profile rows with legacy
scopes un-editable; make flip-into-obo scope handling grant-profile
aware (entra clears the carry-over, rfc8693 honors the request); clear
obo-era audience/scopes when flipping back to oauth_user (the IdP-side
app identifier is not a resource indicator); mirror the same column
policy in the create handler.

Revocation honesty: hide obo mint-cache rows from the user connections
list and refuse the per-server disconnect with 409 — deleting the row
returned 204, audited token_revoked, and then session-start priming
silently re-minted from the surviving captured credential.

Console form: keep the audience-from-URL autofill off for sign-in
passthrough (the audience there is an IdP application identifier, and
the prefilled URL passed every validation layer then failed every
mint); clear the autofill artifact when switching modes; omit unchanged
scopes from submissions.

Dispatchers: route tool/resource/prompt through one shared lookup-error
mapping and an auth-model-aware 401-exhausted detail (obo users are no
longer pointed at a consent flow that does not exist). The consent-url
audit count drops 13 → 7: the three per-dispatcher mapping copies
collapsed into _pool_lookup_error.

Priming: skip all obo servers for users with no captured credential via
one existence SELECT (previously three reads per server per session).

Also: USER_SCOPED_AUTH_TYPES now lives in storage._protocol so the
backend SQL predicates share the application layer's set; docs describe
the actual purge-on-transition behavior (the orphan-and-reactivate
claims were wrong); the entra e2e setup script no longer aborts
silently under set -e with suppressed stderr.
2026-07-12 19:03:35 -07:00
Patrick Buckley 891c8b1785 docs(mcp): operator guide for oauth_obo single-credential sign-in passthrough (slice 5)
Adds the oauth_obo section to docs/mcp-oauth.md:
- when to use it vs oauth_user (mode table row)
- deployment config ([oidc] capture_user_credential + obo_grant_profile,
  encryption-key requirement)
- per-IdP setup: Entra (delegated permissions + admin consent, plus the
  verified admin-consent-propagation AADSTS65001 gotcha) and Keycloak
  RFC 8693 (standard token exchange + audience client scopes)
- revocation & custody model: identity-unlink cuts a user off (credential
  + cache purge); flush-cache is an honest re-mint, not a revoke; per-server
  revocation is IdP-governed
- auth-type-transition + troubleshooting table rows for obo
- interim #682 note (Entra pre-authorized-clients removes the second
  consent for plain oauth_user, tenant-config only)

Refs #551.
2026-07-12 19:03:35 -07:00
Patrick Buckley 6a94dc1d57 fix(judge): thread model-definition capabilities into judge completions
The intent judge and output-guard judge were the only create_completion
callers that never passed model-definition capabilities, so operator-declared
capabilities (effort passthrough, tool support, temperature, verbosity) were
silently ignored on judge calls. Every in-ChatSession lane threads them via
_resolve_capabilities; the judges live outside the session and never reached
it.

Add a shared _resolve_model_capabilities() helper mirroring
ChatSession._resolve_capabilities, and have both judges resolve
self._capabilities — from the judge alias's model definition, or the injected
session capabilities on the session-model fallback — and pass capabilities=
into create_completion. Replace each judge's context_window int arg with
session_capabilities: the fallback window now derives from the resolved caps
(identical to what the session passed before), while the alias path keeps
reading ModelConfig.context_window, a separate field the capability merge must
not touch.

Refresh the stale docs/judge.md note claiming sub-agents are exempt from intent
validation — task agents have been judge-gated since #773.

Refs #823
2026-07-11 17:53:24 -07:00
Patrick Buckley 03861e0cf5 feat(console): verbosity and reasoning-mode controls in the model shelf
- capability-gated "Response controls" on the Models create/edit
  shelf: Output verbosity (low/medium/high) and Reasoning mode
  (Standard/Pro), shown only for Responses-surface models; the empty
  selection means provider default and omits the capability key
- values lift out of the capabilities JSON into the selects on edit
  and merge back on save with identity tracking, so changing the
  provider/model/surface resets them instead of carrying a value
  across models; the Advanced JSON textarea wins unless the select
  was touched last
- known GPT-5.6 models inherit support from the static table without
  persisting redundant support flags; OpenAI-compatible models pinned
  to the Responses surface opt in via the supports_verbosity /
  supports_pro_mode tiles
- invalidate in-flight capability lookups on any identity field
  change and on modal open so a stale response cannot clobber a fresh
  shelf; API-surface changes now run the full field-change path
- model list rows surface verbosity= / mode= override chips
2026-07-10 15:59:40 -07:00
Patrick Buckley b450b9ad20 fix(providers): align GPT-5.6 with the GA API surface
- every 5.6 tier accepts effort "max" and reasoning.mode
  "standard"/"pro" (GA docs: pro is a request mode on any GPT-5.6
  model) -- drop the Sol-only gating
- GPT-5.6 deprecates prompt_cache_retention; send
  prompt_cache_options={"ttl": "30m"} (its only supported lifetime)
  and keep the 24h retention policy for pre-5.6 models
- never inject commercial cache params into local lanes: dropped from
  the Chat Completions lane (which serves only openai-compatible and
  google) and gated off the compat-pinned Responses lane -- a gpt-5*
  served-model name is not an OpenAI account
- account cache writes: usage *_tokens_details.cache_write_tokens
  flows into cache_creation_tokens (5.6 bills writes at 1.25x the
  uncached input rate)
- drop non-string verbosity/reasoning_mode overrides with a warning
  instead of raising on unhashable capability-JSON values
- keep ModelCapabilities' public positional prefix stable by appending
  the verbosity/pro fields at the tail; pin it with a constructor test
- openai floor 2.44 -> 2.45, the first release with the typed
  prompt_cache_options kwarg
2026-07-10 15:59:40 -07:00
Patrick Buckley e60c19befd fix(watch): harden nudge/wake delivery across eviction, cancel, and identity rebinds
Wake path:
- Denial metacog nudge moves to the tool channel so it drains with the
  denied tool batch instead of the next user-message seam.
- wake_workstream_if_pending: shared wake gate for watch fires on
  already-idle workstreams (no IDLE transition for the watcher to
  observe), wired as wake_fn at every set_watch_runner site via the
  shared _watch_fire_wake_fn helper (closes over the Workstream OBJECT
  — after eviction+restore an id-keyed manager lookup would miss).
- session_worker exit backstop re-runs the wake gate the moment worker
  ownership clears: IDLE fans out on the worker thread, so
  transition-time wakes always landed on the reuse path and no-op'd
  (the coordinator idle_children strand).
- deliver_wake_nudge_from_queue contains GenerationCancelled — it is
  the wake worker's run() closure and only Exception is caught
  downstream.

Watch delivery:
- Terminal fires that cannot reach their workstream are HELD and
  redelivered on min(interval, 60s) without re-running the command,
  bounded by MAX_DELIVERY_ATTEMPTS per cycle and the watch's own
  max_polls across cycles; the poll charge commits durably at hold
  time so restarts stay budget-bounded.
- Restore admission control: per-ws dedup + MAX_CONCURRENT_RESTORES
  cap, presence-only re-check under the lock, detection-only stall
  alerts (reclaiming a wedged admission would trade capped degradation
  for total poll-pool collapse).
- Permanent-vs-transient restore taxonomy: corrupt persona stamp and
  genuinely-missing history (confirmed by a raising storage probe —
  the resume loader swallows read blips into []) deactivate the watch
  immediately; everything else holds and retries.
- Cancel-race defense: delivery paths re-check is_watch_active before
  stashing/dispatching, cancel paths write the row BEFORE
  forget_terminal_dispatched, the HTTP cancel endpoint clears runner
  state, and a per-tick sweep bounds the residual stash-after-clear
  interleaving to one check_interval.
- Abandon/exhaustion commits are write-then-clear so storage that can
  read but not write retries the row write instead of re-running the
  command every cycle; the fresh-fire unrestorable path stashes before
  its deactivation write for the same reason.

Registry follows identity:
- The dispatch registry is keyed by _ws_id at registration time; every
  rebind now moves it: non-fork resume() and /new go through
  _follow_watch_registration (new key live before the old is removed,
  never stealing a registration another live session holds), removals
  are owner-checked so tearing down a watch-restore shell or a
  resumed-away session cannot unregister a live pane, the restore
  shell yields to a registration that appears mid-restore, CLI
  --resume registers after the successful resume, and both the open
  path and the detail-GET lazy rehydrate wire the registration.

Teardown gating and backpressure honesty:
- cleanup_session_ui marks ws._closed FIRST under ws._lock — every
  teardown path (close, close_idle, evict, delete, discard) funnels
  through it — and session_worker.send re-checks under the same lock,
  so a wake can never spawn a worker on a torn-down workstream.
- Create responses carry initial_message_status when the initial
  message could not be delivered (queue_full / refused_closed) instead
  of reading as success; staged attachments survive for the retry;
  /send surfaces a closed workstream as 404 rather than queue_full.

Docs/spec: OpenAPI artifacts regenerated; api-reference documents the
new create-response field; TS SDK type extended.

Tests: ~30 new pins (cancel races, budget durability across restarts,
owner-checked registry moves, teardown gating, stall alerts,
backpressure surfaces, wait_until final re-check); wide subsystem
sweep green (2353 passed).
2026-07-07 16:42:36 -07:00
Patrick Buckley 09abc9d199 feat(tools): allow_private_network opt-in for private-address fetch/preview
turnstone's primary audience self-hosts it beside other lab services —
a web_fetch or open_preview aimed at Grafana, Home Assistant, or a dev
node on the local network is the operator using their own network, not
an attack. The hard SSRF refusal made those targets unreachable.

New runtime setting tools.allow_private_network (settings registry,
default off, rendered in console Settings → Tools; hot — read per tool
call, no restart). When enabled, a call NAMING a private address
becomes approvable: the approval prompt tags it "(private network)" so
the operator approves it as what it is, and the human gate stays.

The redirect side-door stays closed either way: a PUBLIC target that
302s into private address space is refused regardless of the opt-in —
that address never appeared on the approval card, so it is never
fetched. Only a chain whose approved origin was itself private skips
hop screening (its redirects are the operator's own network).

Refusals now teach the knob (mirrors the oidc opt-in hint): the error
names tools.allow_private_network and where to enable it. Surfaces
without a ConfigStore (bare CLI, eval) stay strict — there is no admin
surface to have opted in on.
2026-07-07 08:20:57 -07:00
Patrick Buckley 1e2ab91ec2 feat(preview): probe preflight, legacy charsets, remote-assets opt-in, md vendor parity
Four follow-ups to the preview pane:

- Probe-mode preflight: the pane preflights src-loaded kinds with
  GET ?probe=1 (204, real hardening headers, no body) instead of HEAD —
  the console reverse proxy forwards HEAD as a full GET, so the old
  preflight dragged the whole blob across the node→console hop twice.
  Ownership gate + renderable-type check still run on probes.
- Legacy-charset text: table/text/markdown now transcode to UTF-8 at
  store time (declared charset → UTF-8 → cp1252-replace ladder), same
  model the web kind already used. The ladder applies only when the
  text kind was DECLARED (MIME/extension/override); the bare no-hint
  fallback stays strict UTF-8 and NUL bytes still hard-reject, so
  binary rejection is unchanged.
- Remote assets default OFF: previewed pages are now served under
  "sandbox; default-src 'none'; style-src 'unsafe-inline'; img-src
  data:; font-src data:" — they render with inline styling but cannot
  contact their origin site (no viewer IP/traffic disclosure). A
  per-pane "Load remote images & styles" checkbox (web previews only,
  sticky, not persisted) reloads with ?assets=1 for the permissive
  bare-sandbox mode.
- Markdown vendor parity: preview markdown now runs renderer.js's
  postRenderMarkdown (hljs token coloring + lazy mermaid diagrams)
  like the conversation pane, with preview-scoped code-block/KaTeX
  chrome (the conversation theme is .msg.assistant-scoped).

Tests: probe/assets HTTP + policy coverage, charset ladder units +
stored-bytes round-trip, JS static guards for the probe form, the
default-off toggle, and the post-pass; headless-chrome harness grew to
41 assertions (probe-not-HEAD, toggle visibility/default, fenced-code
render). Full suite green.
2026-07-07 08:20:57 -07:00
Patrick Buckley e010124008 feat(preview): rich preview pane + open_preview tool
Tool results only ever rendered as plain text in the transcript. This
adds the model-driven rich-preview lane every comparable surface has,
in turnstone's developer-tool idiom: a preview pane that opens BESIDE
the conversation, keyboard-operable, sandboxed, never replacing the
transcript that spawned it.

Backend
- New built-in open_preview(target, kind?, title?): resolves an http(s)
  URL, a file path, or attachment:<id> to bytes; classifies into
  web/pdf/image/table/text/markdown (magic bytes > MIME hint >
  extension > UTF-8 fallback, legacy-charset pages transcoded); caps
  size per kind; persists content-addressed with kind="preview" —
  refcounted and GC'd with the workstream, skipped by trajectory
  reconstruction so preview bytes can never materialize onto the wire.
  URL targets gate like web_fetch (network egress); paths/attachments
  run unprompted like read_file.
- New core.web.fetch_with_ssrf_guard: manual redirect walk that
  SSRF-screens every hop BEFORE requesting it (follow_redirects=True
  checked nothing between hops); adopted by both open_preview and
  web_fetch. URL userinfo is stripped before the descriptor or the
  stored bytes see it; <base href> is injected doctype-safely so
  relative assets resolve without quirks mode.
- The preview descriptor rides the tool turn's meta side channel with
  ONE shape on every boundary: the live tool_result SSE event, the
  conversations.meta column, and the /history projection. Cancelled
  batches commit an already-announced preview (blob + meta) instead of
  stranding the open pane on a permanent 404.
- New GET {ws}/attachments/{id}/preview (read scope, same ownership
  gate as /content) serves the STORED type with per-MIME hardening:
  bare CSP sandbox for text/html (renderable, scriptless, opaque
  origin), no CSP for application/pdf (Chromium's viewer refuses
  sandboxed contexts), full default-src 'none' otherwise; filenames
  fold to latin-1-safe ASCII. The console /node proxy now forwards
  CSP/nosniff/disposition/cache-control instead of dropping them.
- History loads exclude preview blobs from the bulk content fetch at
  the query (they were read and discarded on every load).

Frontend
- New "preview" pane type registered in the shared shell (server +
  console): openPaneBeside placement, per-kind renderers — fully
  sandboxed iframe for pages, browser PDF viewer, sortable tables
  (CSV/TSV/JSON, ragged-file safe, 5k-row cap), rendered markdown,
  text — plus back/forward history with arrow keys, reload persistence
  via pane meta, and backoff auto-retry (0.9s..7.2s) bridging the gap
  between the live descriptor and the batch fold that commits its blob.
- Tool results carrying a descriptor render a credential-redacted
  preview chip (the reopen + replay affordance); live results auto-open
  the pane only while the originating pane holds focus.

Docs: docs/tools.md + prompts/tools.md. Tests: policy unit tests, tool
prepare/exec (mocked fetch), serving route + proxy header pass-through,
storage exclusion on both backends, cancel-path commit, JS static
guards; a headless-Chrome harness drives the real module graph (32 DOM
assertions).
2026-07-07 08:20:57 -07:00
Patrick Buckley 9c74673fd4 feat(oidc): allow_private_network opt-in for self-hosted IdPs
The SSRF guard on OIDC endpoint URLs hard-refused any hostname
resolving to a non-public address, which made it impossible to use a
self-hosted IdP (Keycloak, Authentik, Dex) on an internal network —
even though the login-flow issuer is operator-configured, i.e. trusted
input.

Add [oidc] allow_private_network in config.toml (or
TURNSTONE_OIDC_ALLOW_PRIVATE_NETWORK), default off. When set, the
issuer and its discovered endpoints may resolve to private-range,
unique-local, CGNAT, and loopback addresses. Link-local, multicast,
unspecified, and reserved ranges stay refused regardless — cloud
metadata services live on link-local and no legitimate IdP does. The
HTTPS requirement and same-origin endpoint checks are unchanged.

The private-address refusal now raises OAuthSSRFPrivateAddressError,
and the OIDC wrapper appends the remediation hint to the error message
so the failure is self-service. mcp_oauth call sites — where endpoint
URLs come from untrusted remote-server metadata — do not get the knob
and keep the strict public-address rule.
2026-07-06 21:52:42 -07:00
Patrick Buckley 457b01737a feat(personas): agent discoverability + forgiving name resolution
Coordinators and interactive agents had no way to enumerate valid
persona names: task_agent / spawn_workstream / spawn_batch described
`persona=` but nothing listed what it accepts, and resolution was an
exact case-sensitive slug match - users reaching for the display name
or a case variant got an unexplained failure.

- Inject the live persona catalog (enabled, interactive-kind; children
  and sub-agents are always interactive) into the `persona` parameter
  description of task_agent / spawn_workstream / spawn_batch, riding
  the same render path as the model-alias injection. Rebuilt from the
  pristine TOOLS base every render, so repeated renders are idempotent
  and archived personas drop out instead of lingering. Entries carry
  name + default marker + <=96-char description; names-only past 25
  personas. spawn_batch's persona property is nested per-child under
  children.items.properties (located via _persona_property, null-safe
  against name-colliding MCP tools). Storage-less sessions keep the
  base text: the render runs at session construction, so it gates on
  is_storage_initialized() rather than get_storage(), which would
  auto-init SQLite as a side effect.

- resolve_persona_for_kind - the ONE shared rule behind the HTTP
  create handler, CLI --persona, the coordinator spawn precheck, and
  task_agent prep - is now forgiving: exact slug, then the lowercased
  input (created names are regex-enforced lowercase slugs), then a
  case-insensitive display-name match accepted only when unique among
  the kind's enabled personas. Duplicates refuse loudly naming the
  candidate slugs; a same-label persona of another kind neither blocks
  nor wins (the label the caller saw came from a kind-filtered
  surface); whitespace-only input never matches blank display names
  (display_name defaults to ""). Every failure now enumerates the
  kind's valid names, so a stale injected list or a typo self-corrects
  on the next attempt.

- The canonical slug is stamped everywhere: task_agent prep rewrites
  its arg from the resolved snapshot, _validate_child_persona returns
  (canonical, error) and both spawn call sites adopt it - approval
  chrome, the wire, and workstream_config never carry a forgiven
  variant.

- Create-persona shelf: label hint under Name explaining agents and
  the CLI launch the persona by this name (case-insensitive) and the
  display name is only a list label. docs/personas.md gains a "How
  agents discover personas" section and drops the stale claim that
  task_agent has no persona parameter.

Tests: resolver unit suite (case/display/ambiguity/cross-kind/
whitespace/disabled/storage-failure) + guards for injection content
and ordering, idempotent re-render, archive drop, the 25-persona
prose cutoff, coordinator-kind exclusion, and canonical stamping
through spawn_workstream / spawn_batch / task_agent.
2026-07-06 19:58:36 -07:00
Patrick Buckley 1035fe05eb fix(console): effort annotations say in plain words what the request carries
Aliased knob positions were labeled after the lowest sibling sharing
their wire token — a toggle-only model rendered 'Max (= minimal)',
implying a minimal-effort downgrade the wire doesn't contain, and with
declared values 'High (= minimal)' while the wire carries high. Each
position now states its delivered level: exact matches stay plain
('Max'), snapped positions say 'Low — sends high', the adaptive none
position warns 'thinking stays on', budget detail stays in the
tooltip. Effort-param placeholder corrected to the real graded keys
(reasoning_effort / reasoning).
2026-07-05 01:59:38 -07:00
Patrick Buckley 530958e06b fix(providers): the session effort level always reaches the local-lane wire
Local lanes dropped the knob's graded value unless the operator declared
reasoning_effort_values (and, on the template channel, an effort key) —
picking Max sent a bare thinking toggle and the effort select
degenerated into seven positions that all meant 'on'. The user's
setting now always rides:

- openai-compatible: the flat reasoning_effort param carries the knob
  verbatim (effort_passthrough on the lane default); declared values
  still snap ordinally, and a declared effort_param still claims the
  template channel and suppresses the flat param.
- anthropic-compatible: the graded value rides chat_template_kwargs
  alongside the toggle whenever reasoning control is engaged — under
  the operator's effort_param, else the conventional fallback key
  (reasoning_effort); templates that don't reference the kwarg ignore
  it. thinking_mode=none still injects nothing.
- Commercial lanes untouched: empty declared values still mean 'no
  effort control' (o1-mini) and the ordinal snap is unchanged.

Golden writer now pins ensure_ascii=False: the baselines' literal em
dashes came from a hand edit (03f82521) the default-escaping writer
could never reproduce — regens no longer churn unrelated lines.
2026-07-05 01:59:38 -07:00
Patrick Buckley e136237b63 fix(providers): openai-compatible never consults the commercial table
Local-lane model ids are operator-chosen strings (vLLM
--served-model-name), so a prefix collision with a cloud model id
inherited that model's sampling and effort contract: a box named
o3-distill silently lost temperature support, and one named
gpt-5.5-my-finetune was sent gpt-5.5's snapped reasoning_effort values
it never declared. Both surfaces of the lane now return plain defaults
(OPENAI_COMPAT_DEFAULT in _openai_common): the chat class directly, and
the responses pin via a compat-mode OpenAIResponsesProvider mirroring
AnthropicProvider(compat=True). Everything beyond the defaults is
declared by the operator on the model definition, matching the
anthropic-compatible lane and lookup_model_capabilities' documented
'no static table for local models' contract. The commercial openai
lane (Responses-only) is untouched.

Pre-split tests that reached commercial rows through the chat-class
OpenAIProvider alias now source them from lookup_openai_capabilities;
their subject (registry rows + shared gating helpers) is unchanged.
2026-07-05 01:59:38 -07:00
Patrick Buckley 3607517814 fix(providers): registry effort truth — o-series/gpt-5.5/codex-max/sonnet-5; forward declared none
Capability-registry corrections verified against the official OpenAI
reasoning guide, the Azure reasoning-models matrix (2026-06 revision),
and the Anthropic models-overview/effort/migration pages (2026-07):

OpenAI (vocabulary confirmed none/minimal/low/medium/high/xhigh — no
"max" level exists; knob max rides the xhigh ceiling via the ordinal
snap):
- o1/o3/o3-mini/o3-pro/o4-mini declare low/medium/high (every o-series
  model except o1-mini) — without declared values the session knob was
  silently dropped for these models. o1-mini stays effort-free.
- gpt-5.5 default corrected none -> medium (5.5 reasons by default,
  unlike 5.1-5.4).
- gpt-5.1-codex-max gets an explicit row: it prefix-matched the
  gpt-5.1 row (no xhigh), capping the knob's xhigh at high on the one
  model xhigh was introduced for.

Anthropic (effort-page matrix):
- claude-sonnet-5 row added — it previously fell through to
  _ANTHROPIC_DEFAULT (manual budgets, 200k ctx, no effort), all wrong:
  adaptive-by-default thinking (manual budgets are a 400), sampling
  params rejected, 1M ctx / 128k out, effort low..max incl. xhigh.
- claude-sonnet-4-6 gains its documented "max" effort level (knob
  xhigh now rides max, not high) and the stale 64k max_output becomes
  the documented 128k.
- fable-5 / opus-4-8 / opus-4-7 / opus-4-6 / opus-4-5 rows verified
  correct as declared.

Knob semantics completed: resolve_reasoning_effort now forwards the
knob's "none" position verbatim when the model DECLARES an explicit
none level (gpt-5.1+, grok-4.3) — omitting the param there leaves a
reasoning-on server default (gpt-5.5: medium) in charge of a knob
that promises off. Models without a declared none still omit, and
none is never a snap target. Parity harness swaps its synthetic
openai shape for the real gpt-5.5 registry row.
2026-07-04 20:54:20 -07:00
Patrick Buckley a0e04a8588 fix(providers): effort snapping is ordinal — round up, cap at the ceiling
The knob domain grew xhigh/max after the snapping fallbacks were
written, which silently inverted their semantics: off-list meant
"unrecognized string" then, but now usually means "above the model's
ceiling", where falling back to the default tier is directionally
wrong (grok-4.3 at knob max got low; values low/medium/high at knob
xhigh got medium; Anthropic manual mode gave xhigh/max a 4096 budget
while high got 16384).

One rule everywhere now, via snap_reasoning_effort in _protocol:
exact match wins; otherwise the smallest declared level ranking at or
above the knob; above the ceiling, the ceiling. "none" is never a
snap target, and default_reasoning_effort only catches values the
ordinal snap cannot rank.

- resolve_reasoning_effort (flat chat / responses / validated
  effort_param lanes) snaps ordinally: xhigh over (low, medium, high)
  now sends high; xhigh over DeepSeek-style (high, max) sends max —
  matching DeepSeek's official xhigh-to-max aliasing, so a declared
  values list now reproduces that contract instead of defeating it.
- _map_reasoning_to_effort (native output_config) rounds up too:
  knob xhigh on Opus 4.6 (low, medium, high, max) rides max instead
  of silently dropping output_config.
- EFFORT_BUDGET_MAP is monotone across the whole knob domain:
  minimal/low 1024 (API floor), medium 4096, high 16384, xhigh 32768,
  max 65536. Unknown strings still fall to the 4096 default.

Google defaults are unaffected (ceiling and default coincide at
high); wire goldens unchanged. Parity harness caught the budget
clamp interacting with its own max_tokens during development —
capture budget raised above the largest manual budget.
2026-07-04 20:54:20 -07:00
Patrick Buckley 59a527f2f2 feat(console): surface each model's effective effort ladder
Seven knob positions render as seven behaviors in the UI, but the real
ladder depends on the lane and the model: qwen3.6 has two (off/on),
DeepSeek-V4 three, Claude 4.6 five. Operators had no way to see which
positions alias — the confusion class behind silently-equal effort
levels.

providers/effort_ladder.py projects the knob domain through the same
mapping functions the providers use at request time (resolve_reasoning_
effort, reasoning_template_kwargs, the manual budget map — hoisted to a
shared constant so the projection can't drift), yielding
{value, effective} rows where equal tokens promise identical requests.
/v1/api/models rows now carry the ladder (guarded per row), and
POST /v1/api/admin/models/effort-ladder computes it for the admin
modal's unsaved edits.

The admin per-model effort select and the skill launch-config effort
select annotate aliased positions ("Max (= high)", "None (model
default)") with a sends-tooltip; annotations refresh as thinking-mode /
effort-param / capabilities fields change. The ladder describes what
Turnstone sends — server-side templates may alias further (DeepSeek-V4
folds low/medium into its default high tier).
2026-07-04 20:54:20 -07:00
Patrick Buckley c64dc16319 feat(console): Always-on thinking-mode option in the model form
Post effort-knob rework, "Enabled" (manual) means knob-controlled —
effort none turns thinking off. Operators who want the pre-#771
always-on behavior (knob never disables) previously had to hand-write
thinking_mode "adaptive" into the raw capabilities JSON. The dropdown
now offers all three representable modes — None / Effort-knob
controlled / Always on — and the edit-load lift captures adaptive
instead of relegating it to raw JSON.
2026-07-04 20:54:20 -07:00
Patrick Buckley d564cee43d docs(providers): ground the effort_param values caution in official template contracts
Cross-checked online: Qwen3.6's template documents enable_thinking +
preserve_thinking only — no effort parameter exists (vLLM's flat
reasoning_effort convenience boolean-maps to the same toggle).
DeepSeek-V4 officially accepts reasoning_effort high/max with Think
High as the default thinking tier and low/medium→high, xhigh→max
aliasing — so freeform effort_param passthrough matches the contract
exactly, and a declared values list omitting xhigh/max would make
Think Max unreachable. Live probes on both boxes agree with the
official contracts once the default-tier framing is applied.
2026-07-04 20:54:20 -07:00
Patrick Buckley 2cf23b6fe2 fix(providers): address high-effort review of the reasoning-knob branch
Verified findings applied:
- adaptive thinking_mode never knob-disables: the shared mapping now
  sends the toggle unconditionally true for adaptive (the native
  adaptive branch ignores the knob's none), while manual keeps the
  knob-driven contract. Restores the invariant the deleted chat-lane
  code upheld.
- a set effort_param suppresses the flat top-level reasoning_effort on
  the chat lane: the template channel replaces it — double-sending
  could 400 on schema-strict servers and disagree with operator pins.
- admin edit-save no longer drops a stored thinking_param when the
  thinking-mode dropdown is empty: the raw-JSON strip now only fires
  when a mode value actually round-trips through the dropdown.
- effort_param persistence gated on the local-server lanes so a value
  lingering across a provider switch never lands on commercial rows.
- three stale _compat_extra_params references renamed to
  merge_reasoning_template_kwargs.

Documented dispositions (no code change): the knob-none-disables flip
on upgrade is intentional and now carries an upgrade note; gateways
fronting real Claude belong on provider=anthropic with a custom
base_url (the compat lane is vLLM-schema-only); nonstandard
thinking_mode strings staying inert is the intended allowlist
contract. The real anthropic provider is unaffected throughout —
official Claude models keep native thinking/output_config.
2026-07-04 20:54:20 -07:00
Patrick Buckley 68b22adfa3 feat(providers): share the effort-knob→chat_template_kwargs mapping with the openai-compatible lane
Hoist the compat-lane injection into _protocol.merge_reasoning_template_kwargs
(next to ModelCapabilities — one implementation for both local-server lanes)
and retire OpenAIChatCompletionsProvider._apply_thinking_mode in its favor:
_finalize_extra_body now receives the session effort knob, so thinking_mode
manual/adaptive maps knob "none" to an explicit thinking_param false
(previously the toggle was unconditionally true) and caps.effort_param
carries the graded effort key on chat completions too. Operator
server_compat pins still win; the Responses surface is untouched (native
reasoning handles effort itself).

The admin Models form grows an "Effort param" field that round-trips like
thinking_param: lifted out of the raw capabilities JSON on edit-load,
re-added on save, cleared by emptying the field.

Verified live against qwen3.6-27b /v1/chat/completions: knob medium streams
reasoning_content, knob none suppresses it.
2026-07-04 20:54:20 -07:00
Patrick Buckley 9289693730 fix(providers): drive reasoning via chat_template_kwargs on the anthropic-compatible lane
The compat lane sent no reasoning control at all: vLLM's /v1/messages
has no thinking request field, thinking_mode stayed "none", and the
session effort knob was silently dropped. The reasoning levers live in
the chat template, so fold them into extra_body chat_template_kwargs
(_compat_extra_params): thinking_mode manual/adaptive maps the knob
onto caps.thinking_param (effort "none" = off, mirroring the native
manual-mode contract), and caps.effort_param (new ModelCapabilities
field) carries a graded effort value for gpt-oss-style templates,
validated against reasoning_effort_values when declared. Operator
server_compat entries win on key collision; native thinking params,
temperature forcing, and output_config never fire on compat.

resolve_reasoning_effort moves from _openai_common to _protocol next to
ModelCapabilities — importing it into _anthropic would otherwise cross
provider families.

The admin Models form now shows and round-trips the thinking-mode
dropdown for this lane; the #661 hide was premised on thinking_mode
being inert here, which this change inverts.

Verified live against qwen3.6-27b on vLLM /v1/messages: knob medium
streams a thinking block, knob none suppresses it, an operator pin
beats the knob.
2026-07-04 20:54:20 -07:00
Patrick Buckley 7053439e84 refactor(eval): split measurement core from prompt optimizer
turnstone-eval was misnamed: it was a prompt optimizer, not a measurement
harness. Split the 3252-line turnstone/eval.py into a strictly one-way
dependency (optimizer -> eval-core; core never imports the optimizer):

- turnstone/eval/core.py  measurement substrate — everything up to and
  including _run_iteration: provider detection, NullUI, HeadlessSession,
  the test runner, score_run, aggregation, and neutral reporting.
- turnstone/eval/cli.py   new measure-only `turnstone-eval` — the old
  --no-optimize path promoted to the whole job (one _run_iteration call,
  then print the summary table).
- turnstone/optimizer.py  the UCB self-modify loop and its multi-agent
  pipeline (analyst/optimizer/observer/diversifier/tool optimizer), now
  `turnstone-optimizer`; imports from eval.core only.
- turnstone/eval/__init__.py re-exports the core public API for
  back-compat (score_run, _match_action, _run_iteration, HeadlessSession).

_apply_tool_overrides lives in core (HeadlessSession needs it) rather than
alongside the other tree helpers, so the dependency stays one-way.

Breaking change: `turnstone-eval` now measures; use `turnstone-optimizer`
to optimize. Both code paths are behaviour-preserving — the moved function
bodies are byte-identical.
2026-07-03 16:39:31 -07:00
Patrick Buckley dbf389783e refactor(personas): file-backed built-in prompts, explicit source column
Built-in persona base prompts move from inline DB text / base.md into
prompts/personas/<slug>.md — code-owned, PR-reviewable, drift-proof.
base.md / base_coordinator.md become personas/engineer.md / orchestrator.md.

Prompt source is now explicit in storage instead of inferred in app logic:
a new base_prompt_file column plus CHECK (base_prompt IS NOT NULL OR
base_prompt_file IS NOT NULL) — two nullable columns, never both empty.
Resolution is a coalesce (base_prompt else load(base_prompt_file)), frozen
into the workstream stamp at creation. base_prompt_file marks a persona as
built-in (code-only, un-archivable); an operator override on a built-in is
allowed and wins over the file. "Inherit the kind default" is a
workstream-creation act (is_default), not a persona-row state.

Migration 063:
- seeds reference their file (base_prompt NULL); no runtime file reads —
  the backfill's frozen prompt text is inlined as a point-in-time snapshot
  so migration history stays self-contained and reproducible.
- every existing workstream is stamped by kind (creative -> writer, else
  the kind default), set-based (INSERT..SELECT via temp tables) with the
  persona column added after the bulk writes to shorten its lock window.

Storage guards (both backends): operators must supply base_prompt;
built-ins can't be archived or have base_prompt_file set via the API;
clearing an operator persona's only source is rejected.

Follow-ups reviewed alongside (#756): soft-set visibility docstring scoped
to per-process; _apply_persona_snapshot / _current_persona_snapshot own the
stamp round-trip; spawn approval-header args (skill/name/target_node)
flattened+capped like persona; server-side tool injection generalized to
replace-only (client-def gated, incl. the xAI include forwarding). Seed
copy revised (researcher soft; de-costumed prose; engineer de-biased).
New test_schema_parity asserts create_all matches the alembic head.

Closes #683 groundwork; ruff + strict mypy clean, full suite green.
2026-07-03 00:29:26 -07:00
Patrick Buckley b65e5cae0e docs(personas): accuracy sweep — spec models, protocol contracts, page corrections
Spec models now describe what the endpoints do: ListPersonasResponse
declares the tool_inventory the shelf depends on, both console create
models declare persona, CreatePersonaRequest declares org_id, and
UpdatePersonaRequest documents the null-vs-absent split (null clears
base_prompt/tool_allowlist, null on flags/kinds is ignored). Console
OpenAPI regenerated.

Protocol contracts match the implementations: update_persona's return
covers the no-op case, create_persona's raises-list is complete, and
both extended row-shape docstrings gain their tail columns plus the
append-only rule. The workstreams.persona comments say slug, not
display name.

Page corrections from the docs review: personas.md documents the
creative_mode-to-writer migration conversion, the mid-session /resume
MCP-lever behavior, visibility-based nudge gating, the soft-set
prompt-cache cost, and the executive tool list — and drops internal
jargon. The changelog entry moves under [Unreleased] with the house
breaking-marker style and the auto-conversion note. coordinator-skills
and the API tour stop using persona to mean framing; governance,
api-reference, sdk, console, tools, and memory pick up the new
permission family, endpoints, kwargs, picker, and lever caveats.
2026-07-03 00:29:26 -07:00
Patrick Buckley 0d6d7ebae1 docs(personas): concept doc, CHANGELOG 1.7 entry with /creative breaking note
docs/personas.md covers the four levers, the resolve-once/stamp-forever
snapshot semantics, the seed matrix, per-surface selection, authoring
rules, and RBAC; architecture.md's config-persistence paragraph swaps
the removed creative_mode for the persona stamp.
2026-07-03 00:29:26 -07:00
Patrick Buckley c0be383f99 refactor(doctor): replace turnstone-bootstrap with turnstone-doctor (#718)
* refactor(doctor): replace turnstone-bootstrap with turnstone-doctor

turnstone-bootstrap was an LLM setup wizard for Day-0; run.sh now owns install.
Repurpose its LLM/conversation plumbing into turnstone-doctor — a diagnose-only
tool for a running cluster.

- Preflight detects the install kind (docker-compose/systemd/pip/source) from
  config.toml + TURNSTONE_* env, with secret redaction.
- Self-configuring brain resolves the cluster's own model from config/env/storage
  read-only (no migrations, no create_all), falling back to interactive
  selection; the attempt itself is the LLM-backend health check.
- Deterministic version check: installed version, cluster drift via the console's
  authoritative /health, and latest upstream stable/experimental (offline-safe).
- Read-only diagnostic tools (read_file, compose/systemd/journal, http_health,
  check_llm_backend, node_health, finish) behind one secret-scrubbing chokepoint;
  no generic shell, so read-only is structural.
- node_health reaches a node the right way for the detected install kind
  (exec-into-container for compose, direct HTTP otherwise), overridable per node
  for mixed clusters.
- mTLS-aware: forwards [database] SSL params and reports node-mesh mTLS instead of
  mislabelling healthy nodes "unreachable".

init_storage gains a backward-compatible create_tables override for read-only
opens. Entry point turnstone-bootstrap -> turnstone-doctor; README/QUICKSTART/
architecture/docker docs, the bundled compose header, run.sh, and the CI smoke
updated. CHANGELOG deferred.

* fix(doctor): address Copilot + CodeQL review findings on #718

Validated all seven review findings (none false positives) and fixed:

- check_llm_backend now applies the same scheme / metadata-host guard as
  http_health (extracted to _assert_safe_http_url), so a model-supplied
  base_url can't be steered at the cloud metadata endpoint or a file:// URL.
- node_health no longer double-appends the default port when the operator
  passes host:port (regression: 10.0.0.5:8081 -> http://10.0.0.5:8081:8080).
- node_health install_type enum uses "git-source" to match the label the
  rest of the module and the prompt/report show the model (a schema-strict
  provider would otherwise reject the value the model is told to use).
- _read_api_creds takes base_url + api_key as a unit from the first config
  source that defines either field, then env-fills, instead of splicing the
  two across different config files into a pair that exists in no real config.
- _mask_secrets masks assignment-shaped content inside comment lines, so a
  commented-out real secret can't leak through read_file / the report; prose
  comments (no KEY=value shape) still pass through untouched.
- drop the mixed import styles CodeQL flagged in doctor.py and test_doctor.py.

Adds 5 tests; ruff + mypy clean; full doctor suite passes (129).
2026-06-26 04:57:20 -07:00
Patrick Buckley 776430d860 feat(cancel): honest cancellation dispositions + coordinator subtree propagation
A cancelled agent previously discarded its own ledger and reported a bare
"(task interrupted by user)" — fabricating the *outcome* (read downstream
as "nothing happened"), which invites a double-send as readily as a
dropped record causes an orphan. Make the fold-back honest, and propagate
an owner's cancel down the coordinator subtree.

- task_agent (single + parallel): on cancel, fold back a deterministic
  disposition built from the agent's in-memory ledger — actions completed,
  the in-flight action flagged outcome-UNKNOWN, and not-started calls —
  instead of the opaque interrupted string.
- coordinator cancel now auto-propagates to its direct children via a
  post_cancel hook on the shared cancel handler (cooperative fan-out; no
  blocking drain).
- synthesized cancelled tool results now read outcome-UNKNOWN rather than
  implying the call never ran.
- remove the now-redundant stop_cascade operator endpoint (handler, route,
  OpenAPI spec + schema, tests, docs); a coordinator cancel supersedes it.
2026-06-26 03:28:06 -07:00
Patrick Buckley 0b4f77db33 fix(judge): daemon-thread call deadlines; raise local-model timeouts
The judges and the regex ReDoS probe ran a blocking call on a
ThreadPoolExecutor and abandoned the worker with shutdown(wait=False) on
timeout or cancel. concurrent.futures joins every executor worker from an
atexit hook regardless of wait=False, so a wedged call could pin
interpreter exit — and hang the test suite at shutdown.

Add turnstone/core/deadline.py::run_with_deadline: run a blocking callable
on a daemon thread bounded by a wall-clock timeout and an optional cancel
event. A daemon worker is never joined at exit, so abandoning one is safe.

Migrate three sites onto it:
- OutputGuardJudge.evaluate()
- IntentJudge._evaluate_single / _run_judge — this also removes
  _ExecutorPoisonedError and the executor-restart dance: per-call daemon
  threads can't poison a shared single-slot pool, so a timeout now returns
  None and the caller delivers one fallback verdict.
- console/server.py _validate_regex_pattern (regex ReDoS probe)

Also:
- Double the default judge LLM timeouts for slower local models:
  judge.timeout 60->120s and judge.output_guard_llm_timeout 30->60s
  (settings registry, JudgeConfig dataclass, --judge-timeout CLI default,
  class docstring, docs). Correct a stale doc that described the per-turn
  timeout as a total budget across turns.
- Raise the regex probe bound 0.5->3.0s so a legitimately complex pattern
  isn't false-flagged as catastrophic backtracking.
- CI: run pytest with -v instead of -q so a hang names the offending test
  instead of riding the job timeout.
- Tests: cover deadline.py and the regex validator; move test_judge.py off
  fixed sleeps onto the existing _wait_for helper.
2026-06-16 17:10:12 -07:00
Patrick Buckley 04b3a3abe4 feat(deploy): systemd units for a bare-metal turnstone-server node
Hardened service + slice + node-identity drop-in template + a README for
running a turnstone-server outside Docker that joins the compose cluster —
the production-shaped counterpart to the one-liner in docs/docker.md. Secrets
stay in config.toml; per-host identity + cluster URLs go in the drop-in. The
README notes the cross-host mTLS caveat (turnstonelabs/lacme#22).
2026-06-15 03:41:24 -07:00
Patrick Buckley 1f61350545 feat(compose): let bare-metal turnstone-servers join the cluster (incl. mTLS)
A turnstone-server running outside the compose network ("bare-metal", e.g. a
local-GPU box) couldn't fully join: it can't resolve the in-cluster console
(console:8090) to enroll its mTLS cert, and SearxNG was unreachable for
web_search. Only Postgres was published.

Publish the console's plain-HTTP ACME endpoint (:8090) and SearxNG (:8081)
alongside Postgres, all bound via one knob TURNSTONE_HOST_IP (default 127.0.0.1
-- nothing new on the LAN; set it to the host's LAN IP for a node on another
machine). Postgres keeps honoring the legacy POSTGRES_BIND as a fallback, so
existing .env files don't break.

The node's TLS client now honors TURNSTONE_CONSOLE_URL so a bare-metal node can
point at the published ACME endpoint instead of the unreachable in-cluster name
(empty = in-cluster service discovery, unchanged).

Docs (docker.md, tls.md), the run.sh-generated .env, and the bootstrap wizard
updated to match. The advertised host is the cert's primary SAN and the console
collector dials it back, so mTLS hostname verification holds both ways.
2026-06-15 03:41:24 -07:00
Patrick Buckley 108714a48d fix(auth): isolate server/console session cookies by name
The server (:8080) and console (:8090) both set a cookie named
`turnstone_auth`. Cookies ignore port (RFC 6265), so on a shared host
(localhost dev, the Electron build, single-box installs) logging into one
surface overwrote the other's cookie and 401'd the first session.

Give each surface its own cookie name -- `turnstone_auth_server` /
`turnstone_auth_console` -- threaded as a required `cookie_name` argument
through the cookie builders, `check_request`, `AuthMiddleware`, and the six
shared auth handlers (login/logout/setup/whoami/refresh/oidc_callback). Each
app passes its own constant; the parameter is required (no default) so a
forgotten caller fails loudly instead of silently reverting to the legacy name.

Names key on role, not node: the cluster shares one JWT identity and the
console->node proxy re-mints a bearer token (dropping Set-Cookie), so
per-instance names would break identity portability and aren't used.

Hard cutover: the legacy `turnstone_auth` cookie is no longer read and
self-expires within its 24h TTL (one forced re-login). JWT audience was
already enforced, so the shared cookie was a session clobber, not an auth
bypass.
2026-06-15 02:48:50 -07:00
Patrick Buckley 30b590fb25 feat(memory): durable per-user coordinator scope + anonymous-coordinator guard
The coordinator memory scope was keyed by the session's ws_id, so every
new coordinator session started with an empty namespace and its rows
were orphaned on close — coordinator memory never actually persisted.
Re-key the scope to the coordinator's creator user_id: one durable
orchestration namespace per user, shared by all of that user's
coordinator sessions (concurrent ones included; upsert-by-name is the
collision rule).

The child-containment threat model is unchanged: the gate is session
KIND — children are always interactive and share the parent's user_id,
so _validate_scope rejects them before scope resolution, and the REST
memories API still rejects the coordinator scope outright. The implicit
visibility lane now also fails closed on an empty scope_id to match the
explicit search/list lanes (the storage helpers treat a falsy scope_id
as 'no scope_id filter', which would have read every user's rows).

Anonymous coordinators are no longer constructible: ChatSession refuses
kind=COORDINATOR with an empty user_id at the constructor — the single
choke point covering create, rehydration of legacy rows (surfaced by
the open handler as a 503 with remediation text), and any future host —
and the console no longer masks an empty uid as a phantom 'system'
principal when minting coordinator JWTs, per CoordinatorTokenManager's
documented 'sub = the real creator user_id' contract.

Migration 061 carries existing coordinator rows across: rows whose
owning workstream is gone or ownerless are deleted (unreachable under
user keying), same-name collisions within a user keep the newest
updated row (memory_id tiebreak), and survivors re-key to the owner's
user_id.
2026-06-12 13:54:49 -07:00
Patrick Buckley 7ef04e576a fix(providers): require base_url for anthropic-compatible
Copilot review on #661: empty base_url let the SDK fall back to
https://api.anthropic.com, sending compat-shaped requests to the
commercial API. The lane is local-only by definition, and the /v1-strip
edge case already established fail-loudly-over-silent-prod-retarget;
apply the same principle to the empty case. create_client raises an
actionable ValueError; the admin Detect path surfaces it as a clean
error string via probe_model_endpoint's existing handler.
2026-06-11 20:27:29 -07:00
Patrick Buckley 12bd848c68 feat(providers): anthropic-compatible lane for local /v1/messages servers
Add provider id "anthropic-compatible": the existing AnthropicProvider
pointed at Anthropic-compatible local servers (vLLM /v1/messages),
mirroring the openai/openai-compatible split. Registry-only — configured
via the admin Models tab or [models.*] toml, not exposed on the bare
--provider flag, so the CLI/server prod-URL defaults are unreachable for
the lane and real-Anthropic behavior is untouched.

Lane behavior (live-verified against vLLM 0.22.1rc1 + DeepSeek-V4-Flash):
- Capability defaults replace the Claude static table: token_param
  max_tokens, thinking_mode none, web_search/tool_search/vision off,
  reasoning replay on. vLLM rejects Anthropic server-side tool types
  (tools require input_schema) and ignores the thinking request param,
  so neither is sent; thinking blocks still stream back and round-trip
  through the native lane verbatim.
- Reasoning toggles via server_compat extra_body chat_template_kwargs
  (first-class vLLM request field; request-level keys beat server
  defaults). _build_thinking_and_kwargs forwards non-internal
  extra_params as SDK extra_body; thinking_budget_tokens stays internal.
- No temperature force: thinking_mode none skips the Claude-only
  temperature=1.0 requirement.

Admin UI: provider option + URL placeholder (base_url without /v1 — the
SDK appends /v1/messages); the server-compat section shows only the
extra-body field for the lane. thinking_mode round-trips through the
form dropdown for every provider except anthropic-compatible, where it
stays in the raw capabilities JSON — the edit-load lift and save restore
use the same predicate so stored overrides are never silently dropped.

Docs: architecture.md gains the lane subsection incl. verified quirks
(thinking param dropped by vLLM; stop_sequences cut inside thinking and
report end_turn; usage has no cache fields; images need a multimodal
model; mid-conversation system turns are per-model opt-in).

Negative-tested: removing the _INTERNAL_EXTRA_PARAMS exclusion fails
test_internal_keys_not_leaked; the live test drives a streamed turn with
the chat_template_kwargs toggle and asserts no reasoning deltas.
2026-06-11 20:27:29 -07:00