Commit Graph

77 Commits

Author SHA1 Message Date
Patrick Buckley bf2dc04cb3 feat: UCB tree search for eval prompt optimization
Replace linear optimization chain with UCB1 evolution tree. Each
iteration selects the most promising node to extend, preventing
irrecoverable collapse from bad edits. Also adds improvement-based
delta feedback to the optimizer and optional holdout set separation.

Inspired by "Learning to Self-Evolve" (arXiv:2603.18620).
2026-03-23 17:09:22 -07:00
Patrick Buckley c5d5d0b7cd fix: update-vendored-js.sh detects old version from filesystem
The script detected the old version from pyproject.toml, which Renovate
had already updated. This caused OLD_DIR == NEW_DIR, so the script
downloaded files then immediately deleted them.

Fix: detect old version from the actual directory on disk. Add a guard
that errors if old == new version to prevent silent data loss.

Also: run the fixed script to vendor katex 0.16.40 (fonts + css + js).
2026-03-23 13:03:49 -07:00
Patrick Buckley 5b8ab94446 fix: align ConfigStore implementation with spec (#153)
* fix: align ConfigStore implementation with spec

- Add cluster + skills sections to admin UI settings order and labels
- Return default value in DELETE /v1/api/admin/settings response per spec
- Document 4 missing settings in docs/settings.md (trusted_proxies,
  output_guard, redact_secrets, discovery_url) and correct count to 48
- Wire ConfigStore into console server replacing 4 raw
  get_system_setting() calls with validated/cached config_store.get()
- Reload console ConfigStore on settings mutations via
  _publish_config_change()
- Update registry URL tests for ConfigStore-based resolution

* fix: address Copilot review feedback on ConfigStore PR

- Move config_store.reload() before collector guard in
  _publish_config_change() so cache refreshes even without collector
- Add DeleteSettingResponse schema and update OpenAPI spec to match
  the actual delete response (status + key + default)
- Add test asserting default field in delete response
- Fix stale docstring in test helper
2026-03-21 16:12:50 -07:00
Patrick Buckley 414eb52d67 feat: raise scaling limits for 1000-node clusters (#129)
* feat: raise scaling limits for 1000-node clusters

Raise hardcoded limits throughout the codebase so clusters up to 1000
nodes work without configuration changes.

Scaling limits:
- max_workstreams default 10 → 50 (configurable via settings)
- Console fan-out concurrency 50 → 200 (configurable: cluster.node_fan_out_limit)
- MCP max servers 50 → 200 (configurable: cluster.mcp_max_servers)
- Console SSE queue 500 → 2000, server global SSE queue 500 → 1000
- httpx proxy pool: explicit max_connections on both proxy clients
- PostgreSQL pool 5+10 → 2+3 per process (right-sized for short-burst queries)
- Redis pool: explicit max_connections=200 on both sync and async brokers

Performance optimizations:
- Redis list_nodes(): replace N+1 SCAN+GET with SCAN+MGET
- Collector poll: raise thread pool to 200 (matches fan-out limit)
- Server SSE: dedicated ThreadPoolExecutor(200) for queue polling
- Fan-out: new get_all_nodes() removes hardcoded limit=1000 ceiling

Bug fixes:
- Settings reload notification was silently failing (called .get() on tuple)
- Watch fan-out only queried 500 nodes instead of full cluster

New cluster settings (configurable via admin Settings tab):
- cluster.node_fan_out_limit (default 200, range 10-1000)
- cluster.mcp_max_servers (default 200, range 1-2000)

Adds docs/pgbouncer.md for PostgreSQL connection pooling at scale.
Adds ddgStressCluster compose profile (100 nodes, 10 groups of 10).
Updates architecture, console, docker, settings, and API reference docs.

* fix: add image tag to compose anchors to avoid redundant builds

All cluster/stress services inherit `build:` from the anchor, causing
Docker to attempt 200+ separate builds. Adding `image: turnstone:local`
means Docker builds once and all services reuse the cached image.

* fix: address Copilot review feedback on scaling PR

- Remove magic number in get_all_nodes (limit=None instead of 2**31)
- Size httpx proxy pool from fan-out limit setting (not hardcoded 250)
- Cap cluster.node_fan_out_limit max_value to 500, mark restart_required
- Convert _publish_config_change from sync to async (was blocking event loop)
- Use shutdown(wait=True, cancel_futures=True) for SSE executor

* fix: add PostgreSQL env vars to cluster bridge anchor

Bridges initialize storage for auth/migrations but the bridge anchor
was missing TURNSTONE_DB_BACKEND and TURNSTONE_DB_URL, causing all
bridges to fall back to SQLite. With 100 bridges sharing the same
volume, concurrent SQLite migrations corrupt the database.

* fix: address Copilot round 2 + PG connection exhaustion at startup

Copilot feedback:
- Raise cluster.node_fan_out_limit max_value to 1000 (matches target)
- Cache fan-out limit on app.state at startup instead of re-reading DB
  per request (pool and semaphore now use the same value consistently)
- Remove unused params from _publish_config_change

Stress cluster fix:
- Raise PG max_connections to 300 (configurable via POSTGRES_MAX_CONNECTIONS)
  to handle 200 processes connecting simultaneously at startup
- Bump PG shared_buffers to 128MB and memory limit to 1G to match
- Add DB env vars to production bridge service

* fix readme

* fix: startup resilience for large clusters

Server no longer crashes when LLM backend is unreachable at startup.
detect_model() accepts fatal=False, returning (None, None) so the
server starts in degraded mode with circuit breaker open. The health
monitor will detect when the backend becomes available.

Migration runner retries with jittered exponential backoff (up to 10
attempts) when PostgreSQL rejects connections during startup stampedes.

Collector httpx pool sized to match poll workers (was using default of
100 connections with 200 workers).

Also addresses Copilot round 2:
- Raise cluster.node_fan_out_limit max_value to 1000
- Cache fan-out limit on app.state at startup
- Remove unused params from _publish_config_change
- Add DB env vars to production bridge service

* fix: replace silent error suppression with structured logging

Audit and fix 30+ instances of silently swallowed exceptions across 8
files. No-raise contracts are preserved — all changes add logging
while keeping the same return-value behavior.

memory.py (26 changes):
  Every storage operation now logs on failure. Previously the entire
  persistence facade had zero logging — messages, workstream state,
  and structured memories could silently stop being saved.

server.py:
  Usage recording failures now log at warning (was pass).
  Global SSE fan-out errors log at debug (was pass).

console/server.py:
  Config reload notification logs per-node failures at warning.
  Settings read fallbacks log at warning with the default value used.

auth.py:
  User existence check logs at warning (was pass).
  Setup rollback failures log at error (was suppress).
  OIDC state cleanup logs at debug (was suppress).

mcp_client.py:
  DB-managed MCP server list failure logs at warning (was pass).

collector.py:
  Node poll failure upgraded from debug to warning with exc_info.
  Health fetch failure logs at debug with exc_info (was silent).

bridge.py:
  Best-effort plan rejection logs at warning (was suppress).
  Malformed SSE data logs at debug (was suppress).

session.py:
  Tool output UI callback failure logs at debug (was suppress).

* fix: stagger collector poll with deterministic per-node jitter

Each node gets a stable offset within the first half of the poll
interval, derived from hashing the node_id against a Mersenne prime
(2^31 - 1). This spreads HTTP requests across the cycle instead of
firing all 100+ at the same instant.

Also raises poll interval from 10s to 15s and HTTP timeout from 5s
to 30s for large-cluster resilience.

* fix: add startup jitter to bridge heartbeat and health monitor probe

Bridge heartbeat: deterministic per-node jitter (from node_id hash)
spreads initial registration across the first quarter of the heartbeat
TTL. At 100 bridges with 60s TTL, heartbeats spread across 15s instead
of all firing at T=0.

Health monitor probe: deterministic per-process jitter (from PID hash)
spreads initial LLM backend probes across half the probe interval. At
100 servers with 30s interval, probes spread across 15s instead of all
hitting the LLM at T=30.

Both use the same Mersenne prime hashing approach as the collector poll
jitter for consistency.

* fix: split collector httpx timeout and raise keepalive pool

Use separate connect/read/write/pool timeouts instead of a single 30s
for all phases. Raise keepalive connections from 50 to 200 so the
collector reuses TCP connections across poll cycles instead of
constantly tearing down and re-establishing them.

* fix: narrow detect_model return type for CLI and eval callers

detect_model() now returns tuple[str | None, int | None] to support
fatal=False. CLI and eval always use fatal=True (the default), which
guarantees a non-None model or SystemExit. Add assert to narrow the
type for mypy.
2026-03-19 04:53:11 -07:00
Patrick Buckley 10165bb8a1 feat: add OpenShell sandbox policy for turnstone-server (#128)
* feat: add OpenShell sandbox policy for turnstone-server

Curated policy for running turnstone-server inside an OpenShell sandbox
with kernel-enforced security boundaries (Landlock, netns, seccomp).

- Filesystem: workdir read-write, /usr+/etc read-only, /tmp+/dev/null
  read-write, Landlock best_effort compatibility
- Network: default-deny with allowlisted LLM APIs (OpenAI, Anthropic),
  Tavily, skills.sh, GitHub (read-only L7), MCP registry (read-only L7),
  Redis localhost, package registries, curated web_fetch domains
- Git: L7-enforced read-only (info/refs + git-upload-pack only)
- Process: privilege drop to sandbox:sandbox
- Inference routing template for credential isolation (real API keys
  never enter the sandbox, resolved at proxy layer)

* fix: address PR #128 review feedback + add integration guide

Review fixes:
- Use python3 (not python) in usage examples to match binary allowlist
- Fix network_policy → network_policies in comment
- Remove /usr/bin/git from github_api (git uses github.com not
  api.github.com; already covered by git_operations policy)
- Remove pip/uv from bash_network_tools (package_registries already
  covers their PyPI access; no need for StackOverflow/Wikipedia reach)
- Restructure routes.yaml so commented blocks are indented under
  routes: key (uncomment without restructuring YAML)

New: docs/openshell.md covering policy customization, inference routing,
domain allowlisting, MCP subprocess inheritance, and the dual-layer
security model.
2026-03-18 18:09:47 -07:00
Patrick Buckley 1b24e4717f feat: split-pane layout for chat UI (#127)
* feat: split-pane layout for chat UI

Refactor the server UI from a single-pane global-state design to a
multi-pane architecture with per-workstream Pane instances and a binary
layout tree. Each pane has its own SSE connection, message area, input,
and state (busy, approval, streaming).

Phase 1 — Pane class with 25 prototype methods encapsulating all
per-workstream state. Phase 2 — binary split tree (leaf/split nodes)
with recursive flexbox rendering and drag-to-resize handles. Phase 3 —
keyboard shortcuts (Ctrl+\, Ctrl+Shift+\, Ctrl+Shift+W, Ctrl+Alt+Arrow)
and right-click context menu. Phase 4 — layout persistence via
localStorage.

Key design decisions:
- No duplicate workstreams across panes (split refused if no unused ws,
  auto-close redundant pane on ws deletion)
- Max 6 panes to avoid exhausting browser SSE connections
- Viewport guard prevents splitting below min-width/min-height
- Only focused pane refreshes workstream list on SSE reconnect (prevents
  race when multiple panes disconnect simultaneously)
- Tab click focuses existing pane showing that ws in multi-pane mode
- Pointer events on drag handles for mouse + touch support
- Full a11y: ARIA roles/labels, keyboard nav in context menu, focus
  restoration, prefers-reduced-motion coverage

* fix: address PR #127 review feedback

- Add focusin handler so keyboard focus (Tab) updates focusedPaneId
- Context menu skips interactive elements (textarea, input, links,
  buttons) so native copy/paste and link context menus work
- Split handles get ARIA role=separator, aria-orientation, aria-valuenow,
  keyboard resizing (arrow keys, Home/End), and tabindex=0
- Enforce MAX_PANES limit in deserializeLayout to prevent corrupted
  localStorage from creating too many panes/SSE connections
- Update architecture.md to document split-pane layout
2026-03-18 18:03:46 -07:00
Patrick Buckley d0fc42195a chore: remove dead code and fix noisy JWT test warnings
Remove unused methods (ToolSearchManager.should_activate, get_all_tools),
dead attributes (_all_tools, _threshold), unused constant (DEFAULT_INTERVAL),
unused Scenario protocol class, and vestigial parameters (judge._evaluate_single
heuristic, SimEngine.simulate_llm_response turn_number). Lengthen JWT test
secrets to >= 32 bytes to suppress InsecureKeyLengthWarning from PyJWT.
2026-03-17 17:02:25 -07:00
Patrick Buckley c76a61841e fix: PR #118 round 2 — null-safe parser, docs, consistency
- Null-safe extraction for description, license, and compatibility in
  skill_parser.py — YAML bare keys (e.g. `description:`) no longer
  produce the literal string "None"
- Log warning on skill catalog storage failure instead of silent swallow
- Use `enabled == 1` in list_skills_by_activation for consistency with
  other prompt_templates queries in both storage backends
- Add parser tests for YAML null description, license, and compatibility
- Update governance.md: document runtime config editing on installed
  skills, two-column modal layout, SPDX license dropdown, origin badge
2026-03-17 16:09:06 -07:00
Patrick Buckley dc464ac313 feat: Agent Skills standard compliance + frontend spec fields
Brings skills implementation into full compliance with agentskills.io:

Parser:
- Read `allowed-tools` (hyphenated, standard) only; stored as
  `allowed_tools` internally — no underscore fallback
- Reject consecutive hyphens in skill names
- Extract author/version from standard `metadata:` map with top-level
  fallback; null-safe (no "None" string for bare YAML keys)
- Truncate description at 1024 chars, compatibility at 500 chars (spec
  caps) with log warnings
- Lenient parsing mode (lenient=True) for cross-client import: sanitizes
  names, returns None on skip, malformed-YAML colon-value retry
- Type overloads: strict mode returns ParsedSkill, lenient returns
  ParsedSkill | None

Session:
- `<available-skills>` XML catalog in system messages for
  activation="search" skills (disabled ones filtered out, capped at 30)

Tool rename:
- `load_skill` tool → `skill` (JSON, session preparers/executors,
  approval labels, tests, docs)

Storage (migration 023):
- Add `license` and `compatibility` columns to prompt_templates
- skill_license / compatibility params on create_prompt_template across
  protocol, SQLite, PostgreSQL backends
- Add to SKILL_MUTABLE for update_prompt_template

API + server:
- SkillInfo, CreateSkillRequest, UpdateSkillRequest: license +
  compatibility fields
- Create/update/install endpoints extract and persist both fields
- Install endpoint maps parsed.license + parsed.compatibility from
  imported SKILL.md (previously discarded)
- _skill_to_response() includes both fields

Admin UI:
- Create + edit modals: version, license, compatibility fields
- Readonly (imported) skills: "edit" → "view" button, modal title
  "View Skill", all fields disabled, Save hidden, Cancel → "Close",
  collapsibles auto-expand, focus on Close button
- :disabled CSS for dark-theme modal inputs (bg-highlight, cursor
  not-allowed, dimmed text)
- Fix addEventListener stacking on auto-approve checkboxes → .onchange

SDK: license + compatibility on SkillInfo, CreateSkillRequest,
UpdateSkillRequest TypeScript interfaces

Docs: governance.md, judge.md, tools.md, README, diagram updated
2026-03-17 16:09:06 -07:00
Patrick Buckley 1010f163f0 feat: load_skill built-in tool — model-driven skill discovery and act… (#112)
* feat: load_skill built-in tool — model-driven skill discovery and activation

Two-action tool: 'search' finds skills by multi-word query with substring
matching on name/description/tags/category (auto-approved, read-only);
'load' activates a skill by name via set_skill() (requires approval).

Guards: filters disabled skills from search + load; short-circuits when
skill is already active; approval_label includes skill name for granular
tool policies (load_skill__<name>); main session only (excluded from
sub-agents). Logs storage errors in search path.

25 tests covering registration, preparer validation, executor logic,
disabled/already-active edge cases, multi-word queries, approval labels.

* refactor: use BM25 relevance ranking for load_skill search

Replace substring matching with BM25Index from turnstone/core/bm25.py,
matching the pattern used by memory relevance and tool search. Handles
multi-word queries, term frequency, and document length normalization.

* fix: address copilot review — BM25 tags parsing, primary_key, test cleanup

- Parse JSON tags into space-separated text before BM25 indexing so
  individual tag terms match queries (was passing raw '["foo","bar"]')
- Add primary_key: "name" to load_skill.json for PRIMARY_KEY_MAP
- Remove dead resolve_workstream patch from test helper
- Update diagram: "substring match" → "BM25 ranking"
2026-03-16 19:20:19 -07:00
Patrick Buckley c28bfc1e58 feat: skill discovery — search and install skills from external sources (#111)
* feat: skill discovery — search and install skills from external sources

Add discovery UI and API for finding and installing skills from
skills.sh registries and GitHub repositories with one-click install,
SKILL.md frontmatter parsing, and security scan integration.

Core modules:
- skill_parser.py: ParsedSkill dataclass, parse_skill_md() with YAML
  frontmatter support (Anthropic + Hermes tag formats), name validation
- skill_sources.py: SkillsShClient (async search + resolve),
  fetch_skill_from_github (SKILL.md + bundled resource fetching with
  256KB cap, text extension filter, GitHub API tree traversal)

API:
- GET /v1/api/admin/skills/discover — search with installed annotation
  and scan_status for installed skills
- POST /v1/api/admin/skills/install — fetch, parse, duplicate check,
  create with origin="source" readonly=true, store resources, audit

Also fixes pre-existing bug where _skill_to_response omitted scan_status,
scan_report, scan_version fields — scan tier badges in the installed
skills table were silently empty despite data existing in storage.

Admin UI: pill toggle (Installed/Discover), discovery cards with scan
tier badges, GitHub import modal with proper focus trap/Escape/backdrop,
scoped selectors preventing MCP↔Skills cross-tab state corruption.

SDK: discover_skills() + install_skill() on Python (async+sync) and
TypeScript console clients.

48 new tests across 3 test files. All 2632 tests pass.

* fix: address copilot review — 404 vs 502, O(n) lookups, branch fallback

- SkillNotFoundError subclass: install returns 404 when SKILL.md is
  missing, 502 only for connectivity/upstream errors
- get_skill_by_source_url() + list_installed_skill_urls(): indexed
  storage lookups replace O(n) full-table scans with content blobs
- Default branch fallback: tries main then master when URL doesn't
  specify a branch
- Path normalization: strip trailing slash once, remove redundant
  candidate
- SDK install_skill() returns typed SkillInfo with response_model
- Tree size guard: skip resource tree if response >2MB
2026-03-16 18:42:32 -07:00
Patrick Buckley e71ea38953 feat: output guard data pipeline — persist assessments, SSE events, a… (#110)
* feat: output guard data pipeline — persist assessments, SSE events, admin UI

Complete the output guard pipeline: persist assessments for v2 calibration,
surface warnings in every UI layer, and add scan badges to admin skills tab.

Storage: migration 022 adds output_assessments table (flags, risk_level,
annotations, output_length, redacted — raw output never stored) and
scan_version column on prompt_templates. Three new protocol methods with
SQLite + PostgreSQL implementations.

Server/CLI: on_output_warning now persists assessments fire-and-forget.
CLI shows flags, annotations, and redaction notice. Session emits on_info
warning when high/critical scan_status skill is loaded.

MQ: OutputWarningEvent dataclass + bridge SSE forwarding.

Web UI: output_warning SSE handler with inline warning rendering
(role="alert" for accessibility), semantic risk colors.

Console admin: scan badges on skills list (dedicated scope-scan-* CSS with
green/yellow/red risk vocabulary), scan report breakdown in edit modal with
4-axis scores, POST /admin/skills/{id}/rescan endpoint, GET
/admin/output-assessments endpoint with date-filtered pagination.

Security fixes: ReDoS in connection string regex ([^@\s]+ → [^:@\s]+),
negative limit bypass in all admin endpoints (max(1, ...)), to_dict()
excludes sanitized output by default.

False-positive fixes: credentials pattern anchored to path context,
env secret key check restricted to key portion only.

* fix: address PR #110 review — list redaction, test fixture, OpenAPI snapshot

Per-part redaction: evaluate each text part independently in structured
output instead of joining all parts and replacing only the first one.

Fix test annotations default from "{}" to "[]" matching schema.

Regenerate TypeScript OpenAPI snapshots for new admin endpoints.
2026-03-16 17:39:24 -07:00
Patrick Buckley 5378b33641 feat: output guard — evaluate tool results before they enter context (#109)
* feat: output guard — evaluate tool results before they enter context

Add turnstone/core/output_guard.py — a time-budgeted heuristic that
evaluates tool execution results after execution but before they
enter the conversation context window.

Priority-ordered detection (5s budget, highest priority first):
1. Prompt injection: override phrases, role injection, instruction
   override markers, meta-injection patterns
2. Credential leakage: API keys (OpenAI/GitHub/AWS/Google), PEM
   private key blocks, connection strings, .env secret format
3. Encoded payloads: script data URIs, hex shellcode sequences
4. Adversarial URLs: cloud metadata endpoints, credential query params
5. System info disclosure: private IPs, sensitive file paths

Annotates and optionally redacts (credentials → [REDACTED:<type>]).
Does NOT gate — surfaces warnings via on_output_warning callback.

Integration:
- Wired into session.py tool result loop via _evaluate_output()
- JudgeConfig gains output_guard + redact_secrets fields (both default true)
- SessionUI protocol gains on_output_warning callback
- 25 compiled regex patterns, pure function, no I/O

29 tests covering all detection categories, benign output false
positive checks, credential redaction, and time budget behavior.

* fix: address PR #109 review — protocol, config, and guard fixes

Copilot review feedback:
- Replace _CLEAN singleton with _clean() factory to prevent mutable
  shared state (OutputAssessment has list fields)
- Remove redundant second _CREDENTIAL_PATTERNS loop in _check_credentials
- Evaluate text parts of list outputs (images) not just string outputs
- Wire output_guard + redact_secrets through ConfigStore settings
  registry and _build_judge_config() so operators can configure via
  admin Settings tab
- Remove --no-output-guard CLI flag claim from docs (use Settings tab)

Typecheck fix:
- Add on_output_warning to all SessionUI implementations: NullUI
  (eval, 5 test files), WebUI (server — emits SSE event), TerminalUI
  (CLI — ANSI colored warning), RecordingUI, FakeUI
2026-03-16 16:22:10 -07:00
Patrick Buckley 9b605f81a3 feat: skill scanner — evaluate SKILL.md content at install time
Add turnstone/core/skill_scanner.py — a production content scanner
that evaluates skill risk across four axes:

1. Content risk: command execution, external downloads, credential
   handling, data exfiltration, eval/exec, sudo, browser automation
2. Supply chain risk: pipe-to-shell, transitive installs, obfuscation,
   download-exec chains, executable URLs from untrusted domains
3. Vulnerability risk: prompt injection (E004), insecure credential
   handling (W007), third-party content exposure (W011)
4. Declared capability risk: parsed from allowed_tools field —
   Bash(*) is high, Bash(git:*) is low, read-only tools are safe

Composite score with equal 25% weights per axis. Floor rule: any
single axis at critical forces composite to at least medium tier.

Wired into both SQLite and PostgreSQL storage backends:
- scan_skill() runs at create_prompt_template time
- Re-scan triggers on update when content or allowed_tools change
- Results populate the existing scan_status and scan_report columns
- Silent failure on scanner errors (never blocks skill creation)

Scanner helper factored into _utils.py (shared across backends).
23 unit tests covering tier classification, capability scoring,
negation filtering, floor rule, serialization, and trusted domains.
2026-03-16 15:45:21 -07:00
Patrick Buckley f05e6bddad feat(judge): enrich heuristic rules from 23 to 36 (#107)
* feat(judge): enrich heuristic rules from 23 to 36

Add 13 new pattern-based rules to the intent validation heuristic,
calibrated from analysis of 25K public agent skill security audits
across three independent auditors.

New critical: download-then-execute chains.
New high: browser+data export, transitive installs from untrusted
sources, control plane mutations (crontab, systemctl).
New medium: content ingestion pipelines (curl|python3), interpreter
execution (python3 script.py), cloud CLI mutations (az/gcloud/aws/
kubectl/terraform create/delete/destroy).
New low: tool_search, read_resource, web_search.

Fixes: crontab -l no longer false-positives, systemctl stop/disable
now flagged, az/gcloud subcommand patterns work correctly.

* fix(judge): address PR #107 review feedback

- content-ingestion: narrow second pattern to specific interpreters/
  processors (python3, node, ruby, perl, php, jq) instead of any word.
  Prevents false positives on read-only downstream (wget -O - | head).
- cloud-infra-mutation: split kubectl into its own pattern with specific
  verbs (apply, create, delete, scale, rollout, drain, cordon) to avoid
  false positive on resource types (kubectl get deploy).
- cloud-infra-mutation: split terraform/pulumi to specific verbs only
  (apply, destroy, import) — terraform plan no longer matches.
- control-plane-mutation: exclude -h and -V flags from crontab pattern
  alongside existing -l exclusion.
- Add 35 heuristic rule tests covering all 13 new rules with positive
  matches and negative (false-positive prevention) cases.
2026-03-16 15:09:36 -07:00
Patrick Buckley 75eda9a096 feat: unified skills system — merge prompt templates + workstream tem… (#106)
* feat: unified skills system — merge prompt templates + workstream templates

Evolves prompt_templates into a first-class skills entity and merges
workstream templates into the same model, collapsing two concepts into
one.

Migration 021: 21 new columns on prompt_templates (skills metadata,
security scan fields, session config from WS templates), skill_resources
table for bundled files, skill_versions table for auto-snapshot version
history. Data migration converts existing WS templates into skills with
name collision handling, migrates version history, renames workstreams
and scheduled_tasks columns, cleans orphaned permissions, drops old
tables.

Key changes:
- All public interfaces renamed: templates → skills (API, CLI, SDK, UI)
- Session config (model, temperature, token_budget, auto_approve, etc.)
  now lives on the skill and is applied at workstream creation
- /skill slash command, set_skill() API, --skill CLI flag
- BM25 skill search via SkillSearchManager for activation="search" skills
- Admin UI: Skills tab with collapsible Session Config section,
  description subtitles, activation/origin/MCP badges, pagination
- Shared validation helper (_parse_skill_session_config) for DRY CRUD
- Version history with auto-snapshot on every edit + API endpoint
- Cascade delete (resources + versions) on skill removal
- Security: range validation, activation allowlist, fail-closed enabled
  check, duplicate name 409, readonly guard, JSON validation
- 77 new tests across storage, runtime, search, API integration, and
  migration behavior verification (2521 total)

* fix: address Copilot review + rename admin.templates → admin.skills

- Skip skill lookup when resume_ws is set (avoids spurious 400)
- Fix _applied_skill_version mismatch (1 in both workstreams table and session)
- Remove stale template field from MQ protocol diagram
- Rename admin.templates permission to admin.skills everywhere (runtime,
  frontend, tests, docs) with migration step for persisted role data
- Fix stale /api/templates references in docs and diagrams
- Update docstrings/comments for skills terminology

* fix: address Copilot round 2 — skill version lineage + stale doc refs

- Compute actual skill version from skill_versions count (not hardcoded 1)
- Use same version in both workstreams table and session metadata
- Fix response payload example: "templates" → "skills" key
- Fix "Each template summary" → "Each skill summary"
2026-03-16 14:47:06 -07:00
Patrick Buckley 80e1924d7f feat: enable prompt caching for Anthropic and OpenAI providers (#104)
* feat: enable prompt caching for Anthropic and OpenAI providers

Activate automatic prompt caching on both LLM providers to reduce input
token costs on multi-turn conversations. Anthropic gets cache_control:
ephemeral (90% savings on cache hits), OpenAI GPT-5.x gets 24h extended
cache retention (free). Cache metrics flow end-to-end through the entire
data pipeline: provider → session → server SSE → MQ protocol → storage →
Prometheus metrics → admin Usage tab.

- AnthropicProvider: top-level cache_control on all requests, extract
  cache_creation_input_tokens and cache_read_input_tokens from streaming
  and non-streaming responses
- OpenAIProvider: prompt_cache_retention=24h for GPT-5.x, extract
  cached_tokens from usage.prompt_tokens_details
- UsageInfo: new cache_creation_tokens and cache_read_tokens fields
- Migration 020: add cache columns to usage_events table
- Storage: record_usage_event and query_usage updated (sqlite + pg)
- Metrics: turnstone_tokens_total{type="cache_creation|cache_read"}
- Server: on_status passes cache tokens to SSE, storage, and metrics
- MQ: StatusEvent carries cache fields through bridge
- SDKs: Python and TypeScript StatusEvent types updated
- OpenAPI: UsageBreakdownItem schema includes cache fields
- Console UI: Usage tab shows cache write/read as secondary readouts
  with visual separator, dimmed when zero
- 16 new tests, docs and 3 diagrams updated

* fix: address Copilot review feedback

- Fix MQ protocol diagram clipping by switching to vertical package
  layout (inbound on top, outbound below) with package aliases
- Regenerate OpenAPI snapshots to include cache_creation_tokens and
  cache_read_tokens on UsageBreakdownItem
- Replace fragile MagicMock(spec=[]) + del pattern with
  types.SimpleNamespace in cache metrics missing-attributes test
2026-03-16 01:59:55 -07:00
Patrick Buckley ef6cac6428 fix: address review feedback and add sync-pending indicator
Review fixes:
- Rename query param from `q` to `search` across endpoint, frontend,
  SDKs, OpenAPI spec, docs, and tests to match upstream registry API
- Validate variables/env/headers are dicts in install endpoint (400 on
  malformed input instead of 500)
- Block javascript: and unsafe URL schemes on repo and website links
  rendered from registry data (XSS prevention)
- Add roving tabindex to Servers/Registry pill toggle for correct
  keyboard focus behavior
- Add noreferrer to website link in detail modal

Sync-pending indicator:
- "Sync to Nodes" button pulses yellow after create/edit/delete/import
  to alert admin that nodes have unseen changes
- Clears after successful sync
- Reduced-motion safe
2026-03-15 21:41:02 -07:00
Patrick Buckley 50544c0d1b feat: MCP Registry integration — discover and install servers from the official registry
Backend: standalone MCPRegistryClient (httpx async) queries the official MCP
Registry API (registry.modelcontextprotocol.io, v0.1). Two new console admin
endpoints: GET /v1/api/admin/mcp-registry/search (proxy with installed-status
annotation, dedup, uninstallable server filtering) and POST
/v1/api/admin/mcp-registry/install (auto-reloads all cluster nodes). Migration
019 adds registry_name/version/meta columns to mcp_servers with partial unique
index. Configurable registry URL via mcp.registry_url setting for
enterprise/private registries. resolve_install_config() handles both remote
(streamable-http) and package (npm→npx, pypi→uvx) installs. Pydantic models,
OpenAPI spec, Python + TypeScript SDK methods.

Frontend: unified MCP admin tab with Servers/Registry pill toggle (ARIA
tablist). Servers view: tri-state source badges (CONFIG/MANUAL/REGISTRY).
Registry view: search bar with type filter (remote/npm/pypi), auto-browse on
tab switch, result cards with source-type badges and repo links, one-click
install for zero-config remotes, install modal with dynamic form for servers
needing env vars/headers/URL variables. Package install warning banner.
Post-install status polling with connection/error feedback toasts. Trust
notice banner linking to the official registry.

Safety: 30s connect timeout on streamablehttp_client and session.initialize()
prevents hung connections from blocking the MCP event loop indefinitely.
Required-only headers in install config prevents empty auth headers from
causing silent 401s.

71 new tests (registry client, API endpoints, storage columns). Docs:
dedicated docs/mcp-registry.md, updated api-reference, architecture, console,
sdk, settings docs. Updated MCP architecture diagram.
2026-03-15 21:09:27 -07:00
Patrick Buckley e7743fd079 feat: per-tool "Always" approve instead of blanket auto-approve (#82)
* feat: per-tool "Always" approve instead of blanket auto-approve

Interactive "Always" button now adds specific tool names to
auto_approve_tools instead of setting blanket auto_approve=True.
Only the tool types in the current batch are auto-approved going
forward — new tool types still prompt for approval.

Server uses approval_label (with func_name fallback) matching the
existing approve_tools() lookup. CLI and bridge use func_name.
Budget override excluded from all paths.

UI: dashed border on Always button signals persistent action,
dynamic tooltip/badge show tool names, aria-label for screen
readers, focus-visible outline fix, overflow-wrap on badge.

Bridge: seeds with DEFAULT_SAFE_TOOLS on first "always" to avoid
losing existing safe-tool auto-approvals.

16 new tests (10 unit + 6 TestClient integration). Updated tool
pipeline diagram and docs.

* fix: address copilot review — filter errored items, hide Always on budget-only

- Server/bridge/JS: add `not it.get("error")` filter so policy-denied
  items aren't added to auto_approve_tools
- Hide Always button when no eligible tools (budget-override-only batch)
- Docs: clarify CLI/bridge use func_name (coarser MCP granularity)
2026-03-15 15:25:40 -07:00
Patrick Buckley 27349e1c13 refactor: move bridge content buffer to server-side single source of truth
Eliminate dual accumulation by piggybacking assistant response text on
the server's ws_state:idle SSE event.  The bridge no longer maintains
its own _ws_content_buffer — it reads content directly from the idle
event and passes it through to TurnCompleteEvent unchanged.

Server-side: WebUI accumulates tokens in on_content_token(), joins and
includes in the idle broadcast, then resets (with 256 KB cap).

Downstream consumers (Discord bidi DM forwarding, catch-up) are
unaffected — TurnCompleteEvent.content is still populated.
2026-03-15 15:04:22 -07:00
Patrick Buckley e603a6a7d1 fix(oidc): pin redirect URI via TURNSTONE_OIDC_REDIRECT_BASE env var (#74)
* fix(oidc): pin redirect URI via TURNSTONE_OIDC_REDIRECT_BASE env var

OIDC redirect_uri was derived from the request Host header, which is
unreliable behind reverse proxies. Add TURNSTONE_OIDC_REDIRECT_BASE
(env var / config.toml) to pin the externally-reachable origin.

Extract _build_oidc_redirect_uri() helper to deduplicate the authorize
and callback handlers. Validate redirect_base at load time (must be
scheme://host[:port], rejects paths/query strings/invalid schemes).

* fix(oidc): reject redirect_base with missing hostname

Addresses Copilot review: values like `https://` or `https://:443`
passed validation but would produce invalid redirect URIs.

* fix(oidc): reject redirect_base with userinfo or invalid port

Addresses Copilot round 2: urlparse silently accepts user:pass@host
and non-numeric ports. Now explicitly rejects both.
2026-03-15 13:52:05 -07:00
Patrick Buckley 20df7b3034 feat: OIDC SSO authentication with PKCE, auto-provisioning, and role … (#71)
* feat: OIDC SSO authentication with PKCE, auto-provisioning, and role mapping

Add OpenID Connect as a fourth authentication method, enabling single sign-on
via any OIDC provider (Okta, Azure AD, Google, Keycloak). Opt-in via env vars
(TURNSTONE_OIDC_ISSUER, CLIENT_ID, CLIENT_SECRET).

Security:
- Authorization Code Flow with PKCE (S256)
- State/nonce parameters with database-backed pending store (multi-node safe)
- JWKS signature validation with async fetch + key rotation retry
- Algorithm allowlist from JWKS key (not token header) prevents confusion
- Identity matching exclusively by (issuer, sub) — prevents account takeover
- password_enabled=false enforced server-side, not just UI
- Rate limiting on both authorize and callback endpoints
- OIDC users get "!oidc" password sentinel (bcrypt rejects naturally)
- ID token validated for iss, aud, exp, nonce

Features:
- Auto-provisioning with username deduplication on first login
- Claim-based role mapping with IdP demotion propagation (revokes stale roles)
- "Continue with [Provider]" SSO button on login page
- OIDC-only mode hides password form
- Setup wizard required before OIDC login (admin bootstrap)

Storage: migration 018 (oidc_identities + oidc_pending_states tables),
8 new protocol methods on both SQLite and PostgreSQL backends.
66 new tests (2273 total).

* fix: address PR #71 review feedback (18 items)

Bugs fixed:
- OIDC success redirect now fetches permissions via new /auth/whoami
  endpoint before completing login (fixes permission-gating in UI)
- Remove double decodeURIComponent on oidc_error (URLSearchParams
  already decodes; extra call throws on stray %)
- Authorize rate limiter returns redirect instead of JSON 429
  (endpoint reached via browser navigation, not fetch)
- Lazy JWKS fetch in callback when startup discovery failed (IdP
  recovery without restart)
- Startup exception handlers now log with exc_info=True
- PostgreSQL pop_oidc_pending_state uses DELETE...RETURNING for
  true atomicity (eliminates TOCTOU)

Behavior:
- New OIDC users without role mapping get builtin-viewer by default
  (assigned_by="oidc-default", not revoked by role sync)

Documentation fixes:
- Role mapping: sync semantics (add + revoke stale), not "additive only"
- PASSWORD_ENABLED=false blocks ALL password logins including admin
- Algorithm: asymmetric allowlist, not per-key derivation
- PlantUML diagram updated for role revocation

API spec fixes:
- Removed error_codes=[302] from callback (302 is success redirect)
- Added /auth/whoami to both server + console specs
- Regenerated TypeScript SDK OpenAPI snapshots (23 + 51 paths)

* fix: address PR #71 round 2 review feedback (10 items)

Rate limiting:
- Authorize endpoint now calls record() after check() so the rate
  limiter actually counts attempts (was a no-op before)

OIDC resilience:
- Split startup try/except: discovery failure disables OIDC, JWKS
  prefetch failure leaves OIDC enabled for lazy retry on first login
- JWKS unavailable message changed to "temporarily unavailable"
  (was misleadingly "not configured")
- create_oidc_pending_state raises on collision instead of OR IGNORE
  (prevents silent insert drop on state collision)
- SQLite pop_oidc_pending_state uses BEGIN IMMEDIATE for write lock
  (eliminates TOCTOU race)

Frontend:
- OIDC error display deferred 300ms so showLogin()'s async status
  fetch doesn't clear it via _switchMode → _clearError

API spec:
- OIDC authorize/callback endpoints now declare response_code=302
- Added AuthWhoamiResponse Pydantic model for /auth/whoami
- Regenerated TypeScript SDK OpenAPI snapshots

Documentation:
- Diagram: JWKS "cached at startup, refreshed on-demand" (was "hourly")
- Added TODO(tech-debt) comments on Host header redirect_uri sites
2026-03-15 03:44:18 -07:00
Patrick Buckley 376da3d084 feat: prompt template tech debt — tests, read-only endpoints, double-… (#67)
* feat: prompt template tech debt — tests, read-only endpoints, double-load fix, server creation modal

Close test coverage gaps for prompt templates:
- Resume with deleted template: verifies graceful degradation (template_content=None, warning logged)
- Threading safety: concurrent set_template/init_system_messages with no race conditions
- Factory passthrough: template kwarg propagation through WorkstreamManager.create()

Add read-only template listing endpoints (read scope, no content exposed):
- GET /v1/api/templates — prompt template summaries (name, category, is_default, origin)
- GET /v1/api/ws-templates — enabled workstream template summaries (name, description, model)
- Available on both server and console; Python + TypeScript SDK methods added
- Console creation modal switched from admin endpoint to read-scope endpoint

Eliminate double-load inefficiency in workstream creation:
- Template validation moved before mgr.create() (no create-then-rollback on invalid template)
- template kwarg plumbed through WorkstreamManager.create() and session factory
- _SessionFactory Protocol added for proper mypy typing

Add workstream creation modal to server web UI:
- Name, model, template dropdown, ws_template/profile dropdown
- Instrument panel aesthetic: gradient top border, blur backdrop, amber accent
- Focus trap, Escape/Enter keyboard handling, loading state, error display
- WCAG AA contrast compliance, reduced-motion support

* fix: add list_ws_templates SDK methods + regenerate OpenAPI snapshots

Add list_ws_templates() to Python SDK (async + sync) and listWsTemplates()
to TypeScript SDK for the new GET /v1/api/ws-templates server endpoint.
Add WsTemplateSummary + ListWsTemplateSummaryResponse TypeScript types.
Regenerate openapi-server.json and openapi-console.json snapshots.

Addresses Copilot review feedback on PR #67.

* fix: skip template pre-validation when resuming a workstream

When resume_ws is set, the request's template field is irrelevant —
resume() restores the template from workstream_config. Pre-validating
a stale template name would incorrectly return 400 before the resume
even runs.

Addresses Copilot review feedback on PR #67.
2026-03-15 02:09:31 -07:00
Patrick Buckley 2ef8a8711b feat: rich markdown renderer with LaTeX support for server web UI (#65)
* feat: rich markdown renderer with LaTeX support for server web UI

Extract markdown rendering from app.js into dedicated renderer.js with
full GFM support: tables (alignment, hover, striping), nested lists,
task list checkboxes, nested blockquotes, images (click-to-load for
privacy), and inline/display LaTeX math via self-hosted KaTeX 0.16.38.

Security: escape image/link URLs to prevent attribute injection, block
javascript: scheme in links, add rel="noopener noreferrer", images
require explicit click to load (no automatic external requests).

Accessibility: scope="col" on table headers, tabindex on scrollable
table containers, aria-labels on task checkboxes and image placeholders,
KaTeX error color override for WCAG AA contrast, reduced-motion support.

* fix: address code review — XSS hardening and list type splitting

- Escape all text through escapeHtml() at start of inlineMarkdown()
  so only renderer-generated tags appear in innerHTML (prevents raw
  HTML/script injection from LLM output)
- Replace inline onclick handler on image placeholders with data-*
  attributes and delegated DOM event listeners (prevents entity
  decoding XSS in event handler attributes)
- Split list blocks into separate <ul>/<ol> when marker type changes
  at the same indent level (mixed ordered/unordered sequences)
2026-03-15 00:04:01 -07:00
Patrick Buckley 3658b77de8 feat: Discord content catch-up + bidirectional notification replies (… (#64)
* feat: Discord content catch-up + bidirectional notification replies (#64)

Two improvements to the Discord channel adapter:

1. Fix intermittent dropped responses caused by a race between the
   bridge's two independent SSE connections (global SSE detects idle
   before per-ws SSE delivers all content tokens). The bridge now
   accumulates content in _ws_content_buffer and attaches it to
   TurnCompleteEvent.content. The Discord bot uses this as a catch-up
   when streaming events were missed.

2. Bidirectional notification replies — when the notify tool sends a DM,
   the message is tracked with the originating ws_id. Users can reply to
   the DM and the reply is routed to the workstream. The response is
   forwarded back to the DM, with the response itself tracked for
   multi-turn conversations. Includes user identity verification,
   stale notification feedback, and FIFO-capped tracking (100 entries).

* fix: address Copilot review — re-insert on unlinked user, deque buffer

- Re-insert _notify_ws_map entry when resolve_user returns None so the
  user can retry after linking (same pattern as user-mismatch re-insert)
- Rename _MAX_CONTENT_BUFFER_BYTES → _MAX_CONTENT_BUFFER_CHARS (len()
  returns characters, not bytes)
- Use deque + running total for O(1) popleft instead of list.pop(0)
2026-03-14 23:58:27 -07:00
Patrick Buckley 19abc0cc65 feat: admin MCP Servers tab — database-backed MCP server management w… (#62)
* feat: admin MCP Servers tab — database-backed MCP server management with live status

Add MCP Servers admin tab (14th tab, System group) for managing MCP server
definitions via the database instead of static JSON config files.

Storage: `mcp_servers` table (migration 016), 6 CRUD methods on both SQLite
and PostgreSQL backends, `MCP_SERVER_MUTABLE` field allowlist.

Config priority chain: DB rows (if any enabled) → CLI `--mcp-config` →
`mcp.config_path` setting → none. Nodes auto-load from DB on startup via
`load_mcp_config(storage=)`.

Hot-reload: `reconcile_sync(storage)` diffs running servers against DB —
adds missing, removes stale, reconnects changed. `_db_managed` set tracks
DB-sourced servers so config-file servers (MCP_CONFIG env) are never removed
by reconcile. Per-server `AsyncExitStack` for clean teardown.

Reload pattern: console writes to DB then signals nodes via
`POST /_internal/mcp-reload` (update by reference, no config payload).

Console admin API: 7 endpoints under `/v1/api/admin/mcp-servers` (CRUD +
reload + import), `admin.mcp` permission, secret masking (env/headers
replaced with *** unless ?reveal=true), audit log sanitization.

Unified view: tab merges DB-managed servers with config-sourced servers
detected on nodes. Config servers shown as read-only rows with "config"
badge — no edit/delete.

Admin UI: 7-column grid with magenta status dots, transport badges,
single-column create/edit modal, paste-based JSON import (mcpServers format),
detail modal with per-node status. Mobile 3-column collapse, reduced-motion
support, backdrop-click dismiss, focus trapping.

SDKs: 7 methods on Python (async+sync) and TypeScript SDKs.

Also fixes: Settings tab permission gate (admin.users → admin.settings),
_ALL_PERMISSIONS list in governance.js (5 missing permissions added),
_internal/mcp-reload added to APPROVE_PATHS.

Docs: architecture.md (14 tabs), api-reference.md (7 endpoints),
20-mcp-architecture.puml updated with admin-driven lifecycle.

66 new tests (2232 total).

* fix: address Copilot review feedback on MCP admin PR

- Docs: fix "merges both sources" → "first-match-wins priority" (architecture.md)
- Validation: require command for stdio, url for streamable-http transport
- Validation: check args/headers/env types in import handler before storing
- Schema: add transport/command/url to McpServerStatus, source to McpServerDetail
- Thread safety: move all remove_server_sync mutations onto MCP event loop thread
- Regenerate OpenAPI JSON snapshots for TypeScript SDK
2026-03-14 17:02:50 -07:00
Patrick Buckley 8895bf07eb feat: admin Settings tab — form-based editor replacing "coming soon" … (#60)
* feat: admin Settings tab — form-based editor replacing "coming soon" stub

Section-grouped layout with collapsible headers for all ~40 ConfigStore
settings (model, session, tools, server, mcp, ratelimit, health, judge,
memory). Type-appropriate inputs: CSS toggle for bools, number with
min/max/step, select for choices, text for strings. Secret fields shown
read-only. Source badge (storage/default), amber restart indicator.

Inline save per field with dirty detection, row flash on success, reset
to default via styled confirm modal. Full WCAG keyboard accessibility
(Enter/Space on section headers, aria-labels, focus-visible). Mobile
responsive single-column at <700px. Reduced-motion safe.

* fix: Settings tab polish — help tooltips, context_window auto-detect, UX fixes

Settings UI:
- Help tooltips: ? button on ~25 settings with plain-English explanations
  and optional reference links (arXiv, Fowler, MCP spec). Click to toggle
  popover, Escape to dismiss, aria-expanded for accessibility.
- Sections start collapsed for scannable overview.
- Restart badge: hidden by default, shows when dirty, persists after save
  with amber glow. Positioned left of source badge.
- Secret row alignment fixed (transparent border matches input box model).
- Docs link in toolbar → Swagger UI Settings section.
- Number inputs: spin buttons hidden (Firefox/WebKit), empty value guard,
  numeric dirty detection (0.1 vs 0.10 no longer false positive).
- Secret reset button enabled when source=storage (clear legacy overrides).
- Space key repeat guard on section headers.
- Sidebar: sticky + max-height:100vh, no longer stretches with content.

Backend:
- context_window default changed from 131072 to 0 (auto-detect). Fallback
  lowered from 131K to 32K (realistic for local models when detection fails).
  Session normalizes 0→32768 defensively.
- Settings registry: help + reference_url fields on SettingDef, richer
  descriptions for model/session/tools/judge/memory settings.
- Schema API includes help + reference_url.
- Bootstrap system prompt: added Runtime Settings section.

Docs: tab counts updated to 13 across README, architecture, console, governance.
2026-03-14 13:12:40 -07:00
Patrick Buckley 101afd84da feat: database-backed settings (ConfigStore) with admin API (#59)
* feat: database-backed settings (ConfigStore) with admin API

Replace config.toml for non-bootstrap settings on the server with a
database-backed ConfigStore.  ~40 settings across model, session,
tools, server, mcp, ratelimit, health, judge, and memory sections are
now managed via the admin Settings API.  CLI flags for these settings
removed from the server entry point (CLI standalone tool unchanged).

Storage: system_settings table (migration 015) with composite PK
(key, node_id) for per-node overrides.  ON CONFLICT upsert in both
SQLite and PostgreSQL.  admin.settings permission granted to
builtin-admin role.

Settings registry (settings_registry.py): code-defined catalog of
all known settings with types, defaults, validation, descriptions.
Registry defaults aligned with previous argparse defaults.

ConfigStore (config_store.py): thread-safe in-memory cache loaded
from storage on init.  Lock-free reads via dict snapshot swap.
reload() for hot-reload via internal endpoint.

Secret settings (judge.api_key) blocked from write via admin API
(403) — must be configured via config.toml or env vars.

warn_migrated_settings() logs warnings for config.toml keys that
overlap with ConfigStore-managed settings.

Console admin API: GET /v1/api/admin/settings (list with effective
values), GET .../schema (registry catalog), PUT .../{key} (update),
DELETE .../{key} (reset to default).  Audit trail on mutations.

MQ: ConfigChangeEvent for cross-node cache invalidation (emission
from console deferred to bridge integration).

Python + TypeScript SDK methods.  63 new tests.  Feature docs at
docs/settings.md, PlantUML diagram 24-settings-architecture.

* fix: address PR review — config-reload scope, registry defaults, doc alignment

- config-reload endpoint requires approve scope (was write)
- config-reload handler is sync def (avoids blocking event loop)
- reasoning_effort passes empty string through (removes `or "medium"`)
- ratelimit.requests_per_second changed to float (matches RateLimiter)
- session.retention_days allows 0 (disable pruning)
- ratelimit.trusted_proxies added to registry + wired in server
- admin_list_settings filters to global settings only (no node_id ambiguity)
- admin_update_setting validates "value" key presence (400 if missing)
- Console config change fans out reload to nodes directly (no MQ dep)
- Docs aligned with actual API response shapes and masking ("***")
2026-03-14 11:42:18 -07:00
Patrick Buckley 67f43a7ee0 feat: [memory] REST API endpoints + SDK methods + docs (#56)
* feat: [memory] REST API endpoints + SDK methods + docs

Server API (4 endpoints):
- GET /v1/api/memories — list with type/scope/scope_id/limit filters
- POST /v1/api/memories — save (upsert) with validation
- POST /v1/api/memories/search — search by query (read scope)
- DELETE /v1/api/memories/{name} — delete by name+scope

Console admin API (4 endpoints):
- GET /v1/api/admin/memories — list all memories
- GET /v1/api/admin/memories/search — search with ?q= param
- GET /v1/api/admin/memories/{memory_id} — get by ID
- DELETE /v1/api/admin/memories/{memory_id} — delete by ID with audit

Storage: add delete_structured_memory_by_id, add mem_type filter to
count_structured_memories. Auth: memory DELETE requires write scope,
admin.memories permission added to valid set + builtin-admin role.

Python SDK: list_memories, save_memory, search_memories, delete_memory
on both server (async+sync) and console (async+sync) clients.

TypeScript SDK: matching methods + types on both clients.

Pydantic schemas with Literal type/scope validation, OpenAPI endpoint
specs on both servers. 33 endpoint tests + 8 auth scope tests.

Docs: docs/memory.md feature guide, api-reference.md endpoint docs,
23-memory-architecture.puml diagram.

Also fixes stray `total: int` on CreateChannelUserRequest.

* fix: [memory] address PR review — cross-user scope, schema types, snapshots

Security: user-scoped memory endpoints now bind scope_id to the
authenticated user's identity.  Providing a mismatched scope_id
returns 403, preventing cross-user memory access on all 4 server
endpoints.

Schema: MemoryInfo response uses MemoryType/MemoryScope Literals.
SearchMemoriesRequest uses filter Literals (empty string allowed).
Limit query params declare schema_type="integer" for correct OpenAPI.

Regenerate sdk/typescript/openapi-{server,console}.json snapshots.
Update count_structured_memories docstring for mem_type param.
Fix fallback response to use normalized name after save.

6 new security tests for user-scope access control.
2026-03-14 02:28:47 -07:00
Patrick Buckley 723cad24bb feat: structured memory system — typed/scoped memories with BM25 rele… (#53)
* feat: structured memory system — typed/scoped memories with BM25 relevance and metacognitive prompting

Replace flat key-value memories table with structured_memories (migration 014).
Four memory types (user/project/feedback/reference), three scopes
(global/workstream/user). Consolidate remember/recall/forget into two tools:
memory (action-based: save/search/delete/list) and recall (conversation
history only).

BM25 relevance scoring (extracted to turnstone/core/bm25.py) selects top-5
memories for system message injection based on conversation context.
Metacognitive prompting injects ephemeral nudges after corrections, tool
denials, workstream resume, and completion signals.

Scope isolation enforced: system message injection and nudge counts filtered
to visible memories only (global + current workstream + authenticated user).
User scope requires authentication. Content capped at 32KB. ILIKE/LIKE
metacharacters escaped in both backends.

113 new tests (2053 total).

* fix: CI failure + copilot review feedback

- Fix time.monotonic() cooldown: use None sentinel instead of 0.0
  default (monotonic clock starts at boot, not epoch — fresh CI
  runners have uptime < 300s so cooldown check always triggered)
- Catch sa.exc.IntegrityError specifically in upsert instead of
  broad Exception (copilot review)
- Preserve existing description/type on upsert when caller doesn't
  explicitly set them (copilot review)
- Add last_accessed + access_count columns to schema/migration for
  future LRU/LFU eviction support
2026-03-13 21:21:09 -07:00
Patrick Buckley 09ea3d164d feat: intent validation v1 — advisory LLM judge for tool approvals (#50) (#50)
* feat: intent validation v1 — advisory LLM judge for tool approvals (#50)

Two-tier evaluation pipeline for non-auto-approved tool calls:
- Heuristic tier (instant): 23 pattern-based rules across 4 severity
  levels (critical/high/medium/low) with first-match-wins priority
- LLM judge tier (async): multi-turn evaluation with read_file/
  list_directory tool access, security-hardened path blocking, forcing
  message on final turn, four-stage JSON parsing with retry nudge

Progressive UI: heuristic verdict badge + judge spinner, LLM verdict
upgrade via intent_verdict SSE event, glow on action buttons. Verdict
persisted to intent_verdicts table for audit. Prometheus metrics for
verdict counts and LLM latency. Enabled by default (--no-judge to opt
out). 132 new tests (1938 total).

Integration: session, server/WebUI, CLI, MQ bridge, console admin API,
Discord channel adapter. Config via [judge] in config.toml or CLI flags.

* fix: address PR #50 Copilot review feedback

- Fix double JSON encoding of func_args in both heuristic and LLM
  verdict persistence paths — use pre-serialized string from verdict
- Fix confidence 0.0 treated as falsy in channel verdict formatter
- Fix timestamp format inconsistency in storage backends (isoformat
  vs strftime) — now uses strftime consistently
- Add on_intent_verdict to eval.py NullUI (mypy fix)
- Fix late verdict after approval resolved — store last decision and
  apply immediately to late-arriving verdicts
- Add permission rollback to migration 012 downgrade
- Update docs to reflect judge enabled by default
- Document confidence_threshold as reserved for v2

* fix: judge per-call timeout and credential recon heuristic

- Wrap create_completion() in ThreadPoolExecutor with per-call timeout
  to prevent indefinite hangs on slow local models. On timeout, replace
  the executor so subsequent batch items don't queue behind lingering
  API calls
- Add IntentJudge.shutdown() and wire into session.close() for cleanup
- Add credential-recon heuristic rule: /etc/passwd, /etc/shadow,
  /etc/master.passwd access flagged as HIGH/review (reconnaissance
  pattern even though the command itself is read-only)
- 3 new tests for credential file access patterns

* fix: denied/blocked tool calls show correct badge on resume

- _build_history() detects denied results ("Denied by user") and
  blocked results ("Blocked") and propagates denied flag to parent
  assistant entry for frontend consumption
- Frontend history replay uses denied flag for badge-denied class
  instead of hardcoding badge-approved for all historical tool calls
- Denial feedback always prefixed with "Denied by user:" so content
  detection works with custom user feedback
- Denied tools visually muted (opacity 0.55, muted tool name)
- role="status" on all approval badge elements (accessibility)
- Broadened "Blocked" prefix match (catches "Blocked by tool policy")
2026-03-13 04:12:46 -07:00
Patrick Buckley 02d9c5c797 feat: workstream templates — behavioral profiles for workstream creation (#49)
* feat: workstream templates — behavioral profiles for workstream creation

Workstream templates define the complete configuration for workstream
creation: system prompt, model, auto-approve policy, per-tool
auto-approve, temperature, reasoning effort, max tokens, agent max
turns, token budget, and completion notifications. Applied once at
creation time (snapshot, not live binding). Auto-versioning captures
pre-update state on every edit.

Schema & storage:
- workstream_templates + workstream_template_versions tables (migration 011)
- ws_template_id/ws_template_version columns on workstreams table
- ws_template column on scheduled_tasks table
- Full CRUD + versioning on SQLite and PostgreSQL backends
- prompt_template_hash (SHA-256) for drift detection

Runtime:
- Template resolution before mgr.create() for model override
- Post-creation settings application (prompt, temperature, approval, budget)
- Token budget enforcement in session.send() — 80% warning, approval gate
  at 100% via __budget_override__ synthetic tool
- WebUI.auto_approve_tools server-side per-tool auto-approve
- Prompt template drift detection (hash comparison, log warning on mismatch)

Integration:
- ws_template field on CreateWorkstreamMessage, bridge, channel router,
  scheduler dispatch, MQ client
- Console admin "WS Templates" tab (11th) with CRUD, version history modal
- Profile dropdown on workstream creation modal
- WS template dropdown on scheduler create/edit modals
- Prompt template name validation on ws_template create/update
- 7 console admin API endpoints + read-only summary endpoint
- Full OpenAPI spec entries in console_spec.py
- Python SDK (sync + async) and TypeScript SDK methods
- Pydantic schemas for all request/response models

Docs & diagrams:
- New 21-ws-template-architecture.puml sequence diagram
- Updated governance, storage, MQ protocol diagrams + PNGs
- Updated architecture.md, governance.md, api-reference.md, console.md, sdk.md

48 new tests (1788 total). mypy clean. ruff clean.

* fix: address PR #49 review feedback

- auto_approve_tools uses approval_label (not just func_name) for
  consistency with tool policy evaluation
- inline system_prompt from ws_template persisted as
  _ws_template_system_prompt in workstream_config, restored on resume
  (previously lost because _template_content wasn't persisted)
- budget gate (__budget_override__) no longer bypassed by blanket
  auto_approve — requires explicit approval or tool policy allow
- diagram 21 field list corrected (removed tool_search/threshold,
  added prompt_template_hash/notify_on_complete)

* fix: address PR #49 review feedback (round 2)

- Grant admin.ws_templates permission in migration 011 (tab was hidden)
- Center WS template modals and fix radio button alignment
- Skip template validation when ws_template overrides prompt
- Guard against empty version snapshots on no-op updates
- Replace setTimeout race with Promise chain in schedule ws_template select
- Validate numeric fields in admin create/update handlers (400 not 500)
- Add ws_template to TypeScript OpenAPI specs
- Use typed Pydantic response models in SDK ws_template methods
2026-03-12 21:06:51 -07:00
Patrick Buckley 2f7f70825b feat: wire prompt templates into session startup with full creation-p… (#47)
* feat: wire prompt templates into session startup with full creation-path support

Prompt templates (prompt_templates table) now have runtime effect:

- is_default=true templates auto-apply as system message content,
  concatenated in name order before user instructions
- Per-workstream template selection via --template CLI flag, template
  field on POST /v1/api/workstreams/new, console creation modal dropdown,
  scheduled task config, and channel adapter config
- {{model}}, {{ws_id}}, {{node_id}} variable substitution via single-pass
  regex (prevents cross-variable injection)
- /template slash command for runtime switching, persisted across resume
- set_template() public API on ChatSession

Security hardening:
- MCP sync resets is_default=False on content update (prevents compromised
  server from injecting defaults)
- 32KB content cap on template create/update + defensive truncation
- Template existence validation returns 400 before workstream creation
- Single-pass regex eliminates cross-variable expansion

Template field plumbed through all creation paths: CLI, server API, MQ
protocol/bridge, console backend, scheduler dispatch, channel router,
MQ client. Migration 010 adds template column to scheduled_tasks.

Frontend: console workstream modal template dropdown, scheduler
create/edit template field, governance template UI variables auto-detected
from content (read-only display replaces editable input). Focus trap and
Enter-key accessibility fixes in workstream modal.

Docs: governance.md template runtime section, api-reference.md template
field, governance + MCP architecture diagrams updated.

Python + TypeScript SDKs, Pydantic schemas all updated. 29 new tests.

* fix: address PR #47 review feedback

- Defer template validation until after resume_ws — a bad template name
  no longer 400s when resume would have ignored it anyway
- Add template field to OpenAPI JSON specs (openapi-server.json,
  openapi-console.json) for SDK/docs consistency
- Validate template existence in schedule create and update endpoints —
  reject unknown template names with 400 instead of allowing schedules
  that would silently fail at dispatch time
2026-03-12 16:57:31 -07:00
Patrick Buckley be165c1971 feat: MCP resource and prompt discovery with read_resource tool (#44)
* feat: MCP resource and prompt discovery with read_resource tool

Extends MCPClientManager with resource and prompt discovery alongside
existing tool support. Resources and prompts are discovered on connect,
cached per-server with copy-on-write rebuilds, and refreshed via push
notifications, periodic polling, or manual /mcp refresh.

New read_resource built-in tool reads MCP resources by URI. Requires
user approval (same as MCP tool calls) since resources are served by
external MCP servers. Resource catalog injected into system message
with XML delimiters. Error messages sanitized to prevent leaking
server internals to the model.

Prompt discovery stores prefixed names (mcp__server__prompt) and
exposes get_prompt_sync() for future use_prompt tool (Chunk D).

/mcp command now shows tools, resources, and prompts. Docs and
diagrams updated.

* feat: MCP prompt governance sync with origin tracking and readonly guards

Migration 009 adds origin, mcp_server, and readonly columns to
prompt_templates. MCP prompts discovered by MCPClientManager are
automatically synced into the governance table as read-only templates
with origin="mcp".

Sync engine handles: create on connect, update on prompt refresh,
delete when prompts are removed from server. Manual templates take
precedence on name collision (MCP prompt skipped with warning).

Admin API returns 403 on update/delete of readonly templates. Console
UI shows MCP origin badge and disables edit/delete buttons. Storage
backends gain get_prompt_template_by_name, list_prompt_templates_by_origin,
and delete_prompt_templates_by_server methods.

Also addresses PR #44 review feedback: concurrent.futures.TimeoutError
handling in sync dispatch, XML-escape resource catalog descriptions,
resource template entries excluded from _resource_map, URI collision
warnings, needs_periodic capability-aware computation, malformed JSON
primary key fallback for read_resource.

* feat: use_prompt tool, prompt catalog, and PR review hardening

New use_prompt built-in tool invokes MCP prompt templates by name,
expanding them into messages. Requires user approval (external MCP
servers). Prompt catalog injected into system message with XML
delimiters (up to 30 prompts, HTML-escaped).

Prompt listener registered in session for catalog rebuild on changes.

Addresses PR #44 review feedback:
- _init_system_messages() now uses copy-on-write (build locally,
  assign atomically) so background thread callbacks never see
  partial system messages
- sync_prompts_to_storage() serialized behind _sync_lock to prevent
  races between set_storage() (main thread) and MCP background thread
- shutdown() clears listener lists to release callback references

Docs and diagrams updated for 18 built-in tools.

* feat: granular tool policies for MCP resources, prompts, and tools

Policy evaluation now uses approval_label (falling back to func_name)
for fnmatch pattern matching, enabling fine-grained per-URI and
per-server policies:
- read_resource: mcp_resource__{normalized_uri}
- use_prompt: mcp__{server}__{prompt} (prefixed name)
- MCP tools: mcp__{server}__{tool} (was static "mcp_tool")

URI normalization resolves .. path segments to prevent traversal
bypasses in policy matching. Resource templates filtered from system
message catalog (not directly readable). use_prompt arguments
validated as dict with string coercion.

TypeScript SDK PromptTemplateInfo gains origin, mcp_server, readonly
fields. Governance docs updated with MCP policy patterns.

* feat: MCP visibility in server and console UIs

Server health endpoint includes mcp.servers, mcp.resources, mcp.prompts
counts. Server UI status bar shows magenta MCP indicator with tooltip.
Console cluster status bar shows MCP metrics with magenta LED dot.
Console node detail view shows per-node MCP summary. Console collector
aggregates MCP counts across nodes in overview.

Uses var(--magenta) design token with new --magenta-glow for theme
adaptation. ARIA roles on MCP status elements. Tooltips on console
MCP metric labels. Node MCP summary hidden on mobile (< 700px).

New diagram: 20-mcp-architecture.puml covering full MCP lifecycle
(connection, discovery, refresh, governance sync, policy, UI).

* fix: McpStatus in health schema, count properties, catalog name fidelity

Adds McpStatus model to HealthResponse (Python + TypeScript SDKs) so
typed clients see the mcp field from /health.

Addresses Copilot review feedback:
- resource_count/prompt_count properties avoid list allocation on
  /health and /metrics polls
- get_tools/resources/prompts return shallow-copied dicts to prevent
  callers from mutating internal cache
- Prompt names and arg names in system message catalog are NOT
  HTML-escaped (model must use exact strings in use_prompt calls);
  only descriptions are escaped

* fix: OpenAPI spec McpStatus + diagram approval column accuracy

Adds McpStatus schema and optional mcp field to HealthResponse in
openapi-server.json, matching the Python schema and TypeScript types.

Fixes tool pipeline diagram: math, web_fetch, web_search correctly
shown as auto-approve (not "Yes" for approval).
2026-03-12 14:49:58 -07:00
Patrick Buckley fd507c6a3c feat: generation cancellation — stop button, cancel API, cooperative … (#40)
* feat: generation cancellation — stop button, cancel API, cooperative cancel

Add cooperative cancellation via threading.Event on ChatSession. The cancel
signal is set from outside the worker thread (HTTP handler, MQ bridge, or
Escape key) and checked at defined checkpoints: per streaming chunk, before
tool execution, inside bash commands, and at each sub-agent turn.

Core: GenerationCancelled(BaseException) exception, cancel()/_check_cancelled()
methods, partial content preservation in _stream_response, clean rollback in
send() with idle state emission (no re-raise).

Server: POST /v1/api/cancel endpoint, CancelledEvent SSE emission, worker
thread safety net.

Frontend: Stop button (■ Stop) with send/stop swap via setBusy(), Escape key
shortcut, cancelled event handler. Accessible: aria-label, focus-visible
override, light theme contrast, non-color differentiation.

MQ: CancelMessage inbound type, bridge _handle_cancel routed handler.

SDK: cancel() on Python async+sync clients, CancelledEvent in Python+TypeScript
event registries, isCancelledEvent type guard.

OpenAPI: CancelRequest schema + endpoint spec.

Docs: API reference, architecture, SDK docs updated. Diagrams: conversation
turn, tool pipeline, MQ protocol, workstream states, SDK architecture.

* fix: address PR #40 review feedback

- setBusy() now resets stopBtn.disabled so stop button is re-enabled on
  next generation after a successful cancel
- Gate cancel side effects (resolve_approval, resolve_plan, cancelled SSE
  event) on worker_thread.is_alive() to avoid spurious events when idle
- Add /v1/api/cancel endpoint and CancelRequest schema to TypeScript
  openapi-server.json to keep it in sync with Python-generated spec
2026-03-10 20:43:52 -07:00
Patrick Buckley 4773535bb8 docs: add governance architecture diagram PNG 2026-03-10 19:41:35 -07:00
Patrick Buckley 7492816ab2 feat: governance — RBAC, tool policies, prompt templates, usage track… (#39)
* feat: governance — RBAC, tool policies, prompt templates, usage tracking, audit logging

Add comprehensive governance layer for the admin console:

- RBAC with 15 granular permissions, 3 builtin roles (admin, operator, viewer),
  custom role CRUD, user-role assignment with privilege escalation prevention
- Tool policies with glob pattern matching, priority-ordered evaluation
  (allow/deny/ask), enforced before auto-approve in WebUI.approve_tools()
- Prompt templates with variable substitution, categories, default flag
- Usage tracking: per-LLM-request token/tool metrics, aggregated queries
  (group by day/model/user), automatic 90-day pruning via scheduler
- Audit logging: append-only event trail for all admin mutations,
  filterable/paginated queries, automatic 365-day pruning, X-Forwarded-For
  aware IP extraction
- require_permission() enforced on all 35+ admin endpoints (users, tokens,
  channels, schedules, watches, roles, orgs, policies, templates, usage, audit)
- Field allowlists on storage update methods prevent mass-assignment bugs
- Self-deletion guard on admin_delete_user, delete_user cascades user_roles
- _row_to_dict helper eliminates ~400 lines of fragile positional row mapping
- _audit_context helper deduplicates 18 instances of audit boilerplate
- Migration 008: 7 new tables, 3 builtin roles, org_id on users
- Console admin panel: 5 new tabs (Roles, Policies, Templates, Usage, Audit)
  with permission-gated visibility, 7 modal dialogs, full keyboard accessibility
- Python + TypeScript SDK methods for all governance endpoints
- 120+ new tests (1554 total)

* fix: address PR #39 review feedback

- Rebuild serialized items after policy evaluation so denied/allowed
  verdicts are reflected in tool_info/approve_request SSE payloads
- Make `since` query param optional in usage OpenAPI spec (handler
  already defaults to last 7 days)
- Add response_model=StatusResponse to DELETE role/policy/template
  and POST/DELETE role assignment endpoints in OpenAPI spec
- Add missing org_id/created/updated fields to UserRoleInfo schema
- Add missing created field to AuditEventInfo schema
- Show "no permissions" empty state instead of loading inaccessible
  tab when all admin tabs are permission-gated
- Fix "13 permissions" → "15 permissions" in architecture.md and
  security.md
- Fix import sorting in test_audit.py and test_tool_policy.py

* fix: address PR #39 round 2 review feedback

- Clear stale permissions from sessionStorage on config-token login
  (auth.js _storePermissions)
- Only trust X-Forwarded-For when behind a proxy that sets
  X-Forwarded-Proto (conditional on is_secure_request trust model)
- Thread user_id from auth into WebUI.on_status for usage events
- Add created field to TS AuditEventInfo type
- Return typed Pydantic models from all SDK governance methods instead
  of dict[str, Any] — both async and sync clients
- Validate group_by param against allowed enum in admin_usage handler
- Add deterministic secondary sort (event_id DESC) to
  list_audit_events in both SQLite and PostgreSQL backends
2026-03-10 19:32:37 -07:00
Patrick Buckley 70d495aa5b fix: per-workstream SSE fan-out — multiple consumers no longer steal … (#38)
* fix: per-workstream SSE fan-out — multiple consumers no longer steal each other's tokens

After 4d665a5 removed the single-consumer SSE lock, the shared
_event_queue let concurrent consumers (browser, bridge, console proxy)
race on Queue.get(), each receiving ~1/N of content tokens and producing
garbled streaming text.

Replace the single queue with per-client fan-out: each SSE connection
registers its own bounded queue (maxsize=500) on WebUI._listeners, and
_enqueue() copies every event to all registered queues. On eviction or
close, a ws_closed sentinel is injected so SSE generators exit promptly.

* fix: address CI failures and Copilot review feedback

- Handle ws_closed sentinel in events_sse generator (break on close)
- Guarantee sentinel delivery by evicting one item when queue is full
- Clear listeners list after injecting sentinels on cleanup
- Fix test_slow_consumer to fill only slow queue directly
- Fix ruff SIM117 (nested with), unused import, mypy unused-ignore
2026-03-10 13:25:16 -07:00
Patrick Buckley 187d004033 feat: watch tool — periodic command polling within workstreams (#36)
* feat: watch tool — periodic command polling within workstreams

Add a new `watch` tool that lets the model (or user) set up periodic
polling of a shell command. Results inject as synthetic user messages
that trigger LLM turns, enabling reactive workflows like PR monitoring,
CI/CD status tracking, and deployment health checks.

Key design:
- Single tool with create/list/cancel actions
- Python expression DSL for stop conditions (restricted eval)
- Server-owned WatchRunner daemon (DB-persisted, survives eviction + restart)
- Three dispatch paths: idle, busy, and evicted workstream restore
- REST API for console visibility (GET /v1/api/watches, POST cancel)
- Migration 007, 8 storage CRUD methods, 75 new tests (1383 total)

* fix: address Copilot review — condition errors, restore deadlock, docs

- Condition eval errors now deactivate the watch immediately instead
  of silently looping until max_polls
- Restored (evicted) workstreams set auto_approve=True to prevent
  approval deadlocks with no connected user
- Tool description clarifies first-poll baseline behavior for change
  detection mode
- Diagram updated: DELETE → POST /v1/api/watches/{id}/cancel
2026-03-10 08:18:28 -07:00
Patrick Buckley 3bc3250869 fix: recovered workstreams invisible in console UI (#35)
* fix: recovered workstreams invisible in console UI

Bridge startup recovery (_recover_workstreams) re-registered workstream
ownership but never published WorkstreamCreatedEvent to the cluster
channel. The collector's poll loop would pick up the workstream in its
internal state, but _apply_poll never fanned out SSE events to connected
browsers. Combined, this made channel-resumed workstreams invisible in
the console while remaining accessible through the proxied node UI.

- Bridge: emit WorkstreamCreatedEvent for each recovered workstream
- Collector: diff poll results and fan out synthetic ws_created/ws_closed
  events for workstream additions and removals
- Skip workstreams with empty IDs in poll processing
- Add 4 tests for poll-diff fanout behavior
- Update console data-flow diagram and architecture docs

* fix: address PR review — filter empty ws IDs, stable event ordering

- Filter empty-string keys from old_ids to avoid phantom ws_closed
  events if a previous poll inserted a workstream under key "".
- Sort set diffs before iterating so ws_created/ws_closed fanout
  order is deterministic across poll cycles.
2026-03-09 13:39:47 -07:00
Patrick Buckley 5f0004dc91 feat: add ClusterSnapshot for instant console UI state rebuild (#34)
* feat: add ClusterSnapshot for instant console UI state rebuild

The console web UI was SSE-driven with no initial state — reloads and
navigation caused blank/loading gaps while waiting for API re-fetches.

Server-side: GET /v1/api/cluster/snapshot returns the full cluster state
(all nodes with workstreams + overview aggregates) built under a single
lock. The SSE stream now emits this snapshot as the first event on
connect (snapshot taken before listener registration to avoid race).

Frontend: local clusterState object mirrors the snapshot, patched
incrementally by SSE events. View navigation renders from local state
with no API round-trips. Fixes popstate/pushState history corruption
on Back/Forward navigation (pre-existing bug). Stable node sorting
with node_id tie-breaker on both server and client.

SDK: snapshot() method on Python (sync + async) and TypeScript console
clients. ClusterSnapshotEvent in event registries.

* fix: address review feedback and SSE proxy reconnect bug

Copilot review fixes:
- Atomic snapshot+register: new get_snapshot_and_register() acquires
  both state and listener locks, eliminating the event gap between
  snapshot read and listener registration.
- Debounce patch renders: patchClusterState uses requestAnimationFrame
  to batch rapid SSE events into a single recompute+render cycle.
- Fix health type: dict[str, str] → dict[str, Any] on all three
  console schema models (ClusterNodeInfo, NodeDetailResponse,
  ClusterSnapshotNode) since /health payloads contain nested objects.
- TypeScript ClusterSnapshotEvent: use concrete ClusterSnapshotNode[]
  and ClusterOverviewResponse types instead of Record<string, unknown>.

SSE proxy reconnect fix:
- _proxy_sse raw_stream now emits `: proxy-ping` comments every 3s
  when no upstream data arrives, preventing the browser EventSource
  from dropping idle connections. The raw byte passthrough refactor
  (4d11078) removed the proxy's independent keepalive — this restores
  it without reverting to EventSourceResponse.
2026-03-09 01:13:35 -07:00
Patrick Buckley 6cc1b3a5bd feat: add vision/image support to read_file tool (#33)
* feat: add vision/image support to read_file tool

read_file now detects image files (PNG, JPEG, GIF, WebP, BMP, TIFF, ICO)
and returns base64-encoded content parts for vision-capable models.
Non-vision models receive a text description instead. A new
supports_vision flag on ModelCapabilities gates the feature, with
config.toml [models.*.capabilities] overrides for local models
(vLLM, llama.cpp, NIM).

* fix: address PR review feedback

- Discard _read_files on no-vision OSError path, include exception detail
- Discard _read_files on oversized image error (not a successful read)
- Validate capabilities type from config.toml (reject non-dict)
- Clarify tool description re: vision behavior and offset/limit scope
- Remove unused os import in tests, fix import sort order
- Handle list content (image tool results) in eval.py tool result loop
2026-03-08 23:43:42 -07:00
Patrick Buckley 4d1107839b refactor: use raw streaming for SSE proxy to preserve event framing (#32)
* refactor: use raw streaming for SSE proxy to preserve event framing

- Replace httpx_sse aconnect_sse with raw httpx.stream for SSE proxy
- Stream bytes verbatim to preserve server-side ping comments and event framing
- Add StreamingResponse with proper headers (Cache-Control, X-Accel-Buffering)
- Update compose.yaml to add 'cluster' profile to the service

* Refactor SSE proxy to raw byte passthrough

- turnstone/console/server.py: Replace aconnect_sse + EventSourceResponse with
  httpx.stream() + StreamingResponse for raw byte passthrough. Server pings,
  events, and comments now flow through verbatim. Added per-request timeout
  override (read=None, pool=None) for long-lived SSE streams.

- tests/test_console.py: Add 3 new tests for SSE proxy:
  - Ping and event preservation
  - Upstream error status handling
  - Client disconnect handling

- docs/console.md: Update SSE Proxy section to reflect raw byte passthrough
  approach.
2026-03-08 04:46:34 -07:00
Patrick Buckley c79c47b940 Add MCP dynamic tool refresh with push notifications and periodic pol… (#31)
* Add MCP dynamic tool refresh with push notifications and periodic polling

MCP tool lists now stay up-to-date without restart via three mechanisms:
push notifications (ToolListChangedNotification) for servers that support
it, staggered periodic polling for servers that don't, and manual
/mcp refresh [server] command. MCPClientManager tracks tools per-server
with copy-on-write rebuild, notifies ChatSession listeners which rebuild
tool lists and ToolSearchManager (preserving expanded tools).

* Address Copilot review feedback on MCP refresh PR

- Fix /mcp refresh typo matching (startswith → exact token check)
- Validate --mcp-refresh-interval >= 0 at parse time via shared
  nonneg_float in config.py (deduplicated from cli.py + server.py)
- Clamp negative refresh_interval to 0 in MCPClientManager constructor
- Fix periodic refresh first poll timing (was initial_delay + interval,
  now initial_delay then immediate first poll)
- Clarify _on_mcp_tools_changed docstring re: O(n) BM25 build cost
2026-03-08 03:28:38 -07:00
Patrick Buckley c7586abd0a Add dynamic tool search with native defer_loading for Anthropic/OpenAI (#30)
* Add dynamic tool search with native defer_loading for Anthropic/OpenAI

When MCP tools push the total tool count past a configurable threshold
(default 20), tool definitions are deferred to reduce token overhead and
improve tool selection accuracy. Three-tier approach mirrors the existing
web search pattern:

- Anthropic (Claude 4.x): native defer_loading + server-side BM25 search
- OpenAI (GPT-5.4+): native defer_loading + hosted search
- vLLM/llama/NIM: client-side BM25 fallback via synthetic tool_search tool

New module turnstone/core/tool_search.py with BM25Index (pure-Python,
zero deps) and ToolSearchManager (session-scoped visibility, expansion,
server hint generation). Discovered tools persist for the session lifetime
so the model only searches once per capability needed.

Config: [tools] search/search_threshold/search_max_results
CLI: --tool-search {auto,on,off}, --tool-search-threshold, --tool-search-max-results
Agents (plan/task) exempt — their scoped tool sets are always small.

43 new tests (1253 total). All diagrams regenerated with PlantUML 1.2025.2.

* Fix Copilot review feedback on tool search

- Fix _MCP_PREFIX_RE to handle underscores in server names (non-greedy match)
- Use ordered dict for _expanded to preserve tool discovery order
- Avoid constructing ToolSearchManager when below threshold in auto mode
- Return empty string from _mcp_server_summary when no servers (not "none")
- Fix CLI help text to reference threshold generically, not hardcoded "20"
- Fix agent exemption docs to accurately describe scoped tool sets
- Fix README to not hardcode "30+" threshold number
2026-03-08 01:43:38 -08:00
Patrick Buckley e195ca54a6 new high level arch abstract 2026-03-07 13:01:19 -08:00
Patrick Buckley 50277cd4de Add 10-node cluster profile to Docker Compose 2026-03-07 12:54:41 -08:00
Patrick Buckley fb190f8977 Normalize session_id into ws_id as sole persistent identity (#29)
* Normalize session_id into ws_id as sole persistent identity

Eliminate the separate session_id concept. The workstream ID (ws_id) is
now the single identity used for both real-time routing and conversation
persistence, removing a layer of indirection that was 1:1 in practice
and buggy on resume (stale pointers, orphaned rows).

Schema changes (migration 006):
- Drop sessions table; add alias/title columns to workstreams
- Rename conversations.session_id → ws_id
- Rename session_config table → workstream_config (ws_id column)
- Data migration remaps existing conversations to ws_id

Storage/API renames:
- register_session → register_workstream (already existed, merged)
- save_message/load_messages now keyed by ws_id
- resolve_session → resolve_workstream
- ChatSession.session_id property → ws_id
- ChatSession.resume_session() → resume()
- resume_session field → resume_ws
- SessionResumedEvent → WorkstreamResumedEvent
- /api/sessions → /api/workstreams/saved
- /sessions slash command → /workstreams
- --session-retention-days → --retention-days

Channel eviction recovery simplified: reuses old ws_id directly
instead of get_session_id_by_ws() reverse lookup.

* Fix Copilot review feedback: stale session wording in docs, regenerate OpenAPI spec

- docs/channels.md: "resumes the session" → "resumes the workstream",
  "Session resumed:" → "Resumed:", "old session was pruned" → "old
  workstream was pruned"
- docs/api-reference.md: "Each session object" → "Each saved workstream
  object", field descriptions updated, removed stale node_id field
- sdk/typescript/openapi-server.json: fully regenerated from Python
  models — removes all stale session_id properties from WorkstreamInfo,
  DashboardWorkstream, CreateWorkstreamResponse schemas
2026-03-07 12:49:07 -08:00
Patrick Buckley 924b976f1f Add scheduled task docs and SDK client methods
Add documentation and SDK support for the scheduled task system
(cron/at scheduling via console API). Includes Python SDK methods
(async + sync), TypeScript SDK methods, console.md API reference,
sdk.md table update, and architecture.md module map entry.
2026-03-05 18:11:36 -08:00