> For the complete documentation index, see [llms.txt](https://faction-os.gitbook.io/faction-os-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://faction-os.gitbook.io/faction-os-docs/.spec_system/archive/sessions/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md). # Implementation Notes **Session ID**: `phase03-session02-task-queue-and-agent-template-contracts` **Package**: Cross-cutting (`packages/protocol`, `apps/server`) **Started**: 2026-05-29 11:41 **Last Updated**: 2026-05-29 12:39 *** ## Session Progress | Metric | Value | | ------------------- | ------- | | Tasks Completed | 20 / 20 | | Estimated Remaining | 0 hours | | Blockers | 0 | *** ## Task Log ### 2026-05-29 - Session Start **Environment verified**: * [x] Prerequisites confirmed * [x] Tools available * [x] Directory structure ready * [x] Cross-package scope confirmed *** ### Task T001 - Verify Session 01 matrix, route taxonomy, and prerequisites **Started**: 2026-05-29 11:40 **Completed**: 2026-05-29 11:41 **Duration**: 1 minute **Notes**: * Confirmed Session 02 owns task queue and agent template protocol/server contracts in `.spec_system/PRD/phase_03/orchestration_gap_matrix.md`. * Confirmed package scope is cross-cutting across `packages/protocol` and `apps/server`. * Confirmed environment prerequisites pass via `.spec_system/scripts/check-prereqs.sh --json --env`. * Confirmed the current task queue and agent template route families are classified as planned in `apps/server/src/lib/unsupportedRoutes.ts`. **Files Changed**: * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T001 complete. *** ### Task T002 - Create implementation notes and security artifact placeholders **Started**: 2026-05-29 11:41 **Completed**: 2026-05-29 11:41 **Duration**: 1 minute **Notes**: * Created this implementation log with environment verification and task progress. * Created a session security artifact placeholder for privacy, validation, and local-only findings. **Files Changed**: * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - added session progress and task log. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/security-compliance.md` - added security posture placeholder. *** ### Task T003 - Confirm current task-queue and agent-template unsupported-route baseline **Started**: 2026-05-29 11:41 **Completed**: 2026-05-29 11:42 **Duration**: 1 minute **Notes**: * Confirmed `apps/server/src/lib/unsupportedRoutes.ts` currently classifies `/task-queue`, `/agent-templates`, `/suggestions`, `/sessions`, `/all-sessions`, `/issues`, `/usage`, `/skills/`, `/campaign-skills`, `/agent-memory`, and `/ts-errors/` under the planned `task-queue` family. * The implementation scope will remove only the approved Session 02 endpoints from that planned catch-all while preserving deterministic 501 responses for the rest. **Files Changed**: * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T003 complete. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - logged the unsupported-route baseline. *** ### Task T004 - Create task queue contract types **Started**: 2026-05-29 11:42 **Completed**: 2026-05-29 11:44 **Duration**: 2 minutes **Notes**: * Added protocol-owned task queue states, priorities, sources, transitions, rejection codes, references, snapshots, events, and REST request/response payloads. * Kept entries local-planning focused and non-executing; execution semantics remain out of scope for this session. **Files Changed**: * `packages/protocol/src/taskQueue.ts` - added task queue contract vocabulary and payload shapes. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T004 complete. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - logged T004. *** ### Task T005 - Create agent template contract types **Started**: 2026-05-29 11:44 **Completed**: 2026-05-29 11:45 **Duration**: 1 minute **Notes**: * Added protocol-owned agent template roles, constraints, defaults, suggestion payloads, and validation codes. * Kept template defaults compact and source-owned, without importing historical template bodies. **Files Changed**: * `packages/protocol/src/agentTemplates.ts` - added agent template contract vocabulary and payload shapes. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T005 complete. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - logged T005. *** ### Task T006 - Export queue and template protocol modules **Started**: 2026-05-29 11:45 **Completed**: 2026-05-29 11:45 **Duration**: 1 minute **Notes**: * Exported task queue and agent template contracts from the root protocol package. **Files Changed**: * `packages/protocol/src/index.ts` - exported `taskQueue` and `agentTemplates`. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T006 complete. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - logged T006. *** ### Task T007 - Add queue/template REST request and response contracts **Started**: 2026-05-29 11:45 **Completed**: 2026-05-29 11:47 **Duration**: 2 minutes **Notes**: * Added REST aliases for queue create, list, update, reject, entry, and mutation responses. * Added REST aliases for template list, detail, and suggestion request/response contracts. * Added a compact `conflict` REST error code for stale or duplicate mutating operations. **Files Changed**: * `packages/protocol/src/rest.ts` - added queue/template REST contracts and conflict envelope. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T007 complete. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - logged T007. *** ### Task T008 - Add queue/template WebSocket event frames **Started**: 2026-05-29 11:47 **Completed**: 2026-05-29 11:49 **Duration**: 2 minutes **Notes**: * Expanded `task_queue_update` to include counts, bounded entry metadata, update time, and optional change metadata. * Added `agent_template_update` for compact template availability and metadata broadcasts. * Added both frames to the `ServerEvent` union. **Files Changed**: * `packages/protocol/src/events.ts` - added queue/template WebSocket frame contracts. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T008 complete. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - logged T008. *** ### Task T009 - Create server-side orchestration validation helpers **Started**: 2026-05-29 11:49 **Completed**: 2026-05-29 11:53 **Duration**: 4 minutes **Notes**: * Added parser helpers for queue create, list, update, reject, template list, template suggestions, and route IDs. * Validation errors use field-level messages and do not echo raw request values or unknown body fields. **Files Changed**: * `apps/server/src/lib/orchestrationValidation.ts` - added orchestration request validators and compact error mapping. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T009 complete. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - logged T009. **BQC Fixes**: * Trust boundary enforcement: request bodies, query params, enum values, references, IDs, and limits are validated at the route boundary (`apps/server/src/lib/orchestrationValidation.ts`). * Error information boundaries: validation messages omit raw request values (`apps/server/src/lib/orchestrationValidation.ts`). *** ### Task T010 - Implement bounded task queue manager **Started**: 2026-05-29 11:53 **Completed**: 2026-05-29 11:58 **Duration**: 5 minutes **Notes**: * Added bounded in-memory queue state with capacity checks, deterministic ordering, revision checks, idempotent create behavior, and mutation locks. * Added safe event metadata helpers for compact WebSocket queue frames. **Files Changed**: * `apps/server/src/managers/taskQueue.ts` - added in-memory queue manager. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T010 complete. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - logged T010. **BQC Fixes**: * Duplicate action prevention: create idempotency keys, entry mutation locks, and stale revision checks prevent duplicate or stale mutating updates (`apps/server/src/managers/taskQueue.ts`). * State freshness on re-entry: list and event snapshots are generated fresh from current manager state (`apps/server/src/managers/taskQueue.ts`). * Concurrency safety: synchronous mutation locks protect shared in-memory entry state during mutating operations (`apps/server/src/managers/taskQueue.ts`). *** ### Task T011 - Implement local agent template manager **Started**: 2026-05-29 11:58 **Completed**: 2026-05-29 12:03 **Duration**: 5 minutes **Notes**: * Added a compact source-owned local template catalog with deterministic list, detail, and suggestion behavior. * Suggestions are bounded, deterministic, and do not import or copy historical template artifacts. **Files Changed**: * `apps/server/src/managers/agentTemplates.ts` - added local template catalog and suggestion manager. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T011 complete. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - logged T011. **BQC Fixes**: * External dependency resilience: template suggestions are local-only and do not call external systems (`apps/server/src/managers/agentTemplates.ts`). * Contract alignment: manager outputs protocol-owned template list/detail/suggestion shapes (`apps/server/src/managers/agentTemplates.ts`). *** ### Task T012 - Add task queue REST routes **Started**: 2026-05-29 12:03 **Completed**: 2026-05-29 12:07 **Duration**: 4 minutes **Notes**: * Added `GET /task-queue`, `POST /task-queue`, `PATCH /task-queue/:id`, and `POST /task-queue/:id/reject`. * Route validators reject malformed requests before manager calls, and route-level mutation locks guard duplicate in-flight updates. **Files Changed**: * `apps/server/src/routes/orchestration.ts` - added task queue REST endpoints. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T012 complete. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - logged T012. **BQC Fixes**: * Duplicate action prevention: route-level in-flight locks guard create, update, and reject paths (`apps/server/src/routes/orchestration.ts`). * Trust boundary enforcement: all route inputs go through orchestration validators before mutation (`apps/server/src/routes/orchestration.ts`). * Failure path completeness: validation, not-found, and conflict paths return explicit compact envelopes (`apps/server/src/routes/orchestration.ts`). *** ### Task T013 - Add agent template REST routes **Started**: 2026-05-29 12:07 **Completed**: 2026-05-29 12:10 **Duration**: 3 minutes **Notes**: * Added `GET /agent-templates`, `GET /agent-templates/:id`, and `POST /agent-templates/suggestions`. * Template list filters, suggestion bodies, route IDs, and limits are validated before manager calls. **Files Changed**: * `apps/server/src/routes/orchestration.ts` - added agent template REST endpoints. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T013 complete. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - logged T013. **BQC Fixes**: * Contract alignment: route responses use protocol-owned template list, detail, and suggestion shapes (`apps/server/src/routes/orchestration.ts`). * Failure path completeness: missing templates return explicit `not_found` envelopes (`apps/server/src/routes/orchestration.ts`). *** ### Task T014 - Emit queue/template WebSocket updates **Started**: 2026-05-29 12:10 **Completed**: 2026-05-29 12:14 **Duration**: 4 minutes **Notes**: * Queue mutations now emit `task_queue_update` frames with counts, bounded entry metadata, timestamps, and transition metadata. * Template list, detail, and suggestion responses emit `agent_template_update` availability frames. * Queue WebSocket entry metadata intentionally omits raw queue titles and summaries. **Files Changed**: * `packages/protocol/src/taskQueue.ts` - removed raw title from queue WebSocket entry metadata. * `apps/server/src/managers/taskQueue.ts` - removed raw title from queue event metadata helper. * `apps/server/src/routes/orchestration.ts` - added queue and template WebSocket emissions. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T014 complete. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - logged T014. **BQC Fixes**: * Error information boundaries: broad WebSocket queue frames omit raw titles, summaries, prompt-like text, commands, paths, tokens, and terminal output (`packages/protocol/src/taskQueue.ts`, `apps/server/src/managers/taskQueue.ts`). * Contract alignment: emitted frame shapes match protocol-owned `ServerEvent` variants (`apps/server/src/routes/orchestration.ts`). *** ### Task T015 - Wire orchestration managers and routes into the server **Started**: 2026-05-29 12:14 **Completed**: 2026-05-29 12:15 **Duration**: 1 minute **Notes**: * Instantiated task queue and agent template managers in the server factory. * Registered orchestration routes after existing core, LLM, and export routes and before the unsupported catch-all. * Did not alter auth, CORS, Origin, rate-limit, body-size, host binding, or WebSocket authorization middleware. **Files Changed**: * `apps/server/src/server.ts` - wired managers and orchestration router. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T015 complete. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - logged T015. *** ### Task T016 - Preserve queue-adjacent out-of-scope routes **Started**: 2026-05-29 12:15 **Completed**: 2026-05-29 12:17 **Duration**: 2 minutes **Notes**: * Preserved deterministic planned-route classification for unapproved queue-adjacent historical paths. * Clarified the task-queue unsupported-route message to include unapproved agent template and analysis routes while the approved Session 02 subset is registered before the catch-all. **Files Changed**: * `apps/server/src/lib/unsupportedRoutes.ts` - clarified planned task-queue family message. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T016 complete. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - logged T016. **BQC Fixes**: * Failure path completeness: unapproved queue-adjacent routes retain explicit 501 capability responses instead of falling through silently (`apps/server/src/lib/unsupportedRoutes.ts`). *** ### Task T017 - Add protocol contract tests **Started**: 2026-05-29 12:17 **Completed**: 2026-05-29 12:21 **Duration**: 4 minutes **Notes**: * Added focused protocol tests for queue vocabularies, REST aliases, template contracts, and WebSocket discriminants. * Added explicit coverage that queue WebSocket entries omit raw title and summary fields. **Files Changed**: * `packages/protocol/tests/orchestration.test.ts` - added protocol orchestration contract tests. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T017 complete. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - logged T017. *** ### Task T018 - Add server route tests **Started**: 2026-05-29 12:21 **Completed**: 2026-05-29 12:28 **Duration**: 7 minutes **Notes**: * Added route coverage for queue create, idempotent create, list, update, stale update conflict, reject, template list, detail, suggestions, validation failures, and unsupported adjacent paths. * Added sensitive-field non-echo assertions for invalid queue and template requests. **Files Changed**: * `apps/server/tests/orchestration.test.ts` - added orchestration REST route tests. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T018 complete. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - logged T018. *** ### Task T019 - Add WebSocket update coverage **Started**: 2026-05-29 12:28 **Completed**: 2026-05-29 12:31 **Duration**: 3 minutes **Notes**: * Added WebSocket coverage for task queue mutation frames and template availability frames. * Documented loading as a client-local pre-frame state and empty, error, and unavailable as reserved template protocol states outside the current static catalog happy path. * Asserted queue frames do not carry raw prompt-like titles, commands, private paths, or token-like values. **Files Changed**: * `apps/server/tests/websocket.test.ts` - added orchestration WebSocket update coverage. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T019 complete. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - logged T019. *** ### Task T020 - Run focused validation and file hygiene checks **Started**: 2026-05-29 12:31 **Completed**: 2026-05-29 12:39 **Duration**: 8 minutes **Notes**: * Ran focused formatting, linting, typechecks, Vitest coverage, ASCII scan, LF scan, and `git diff --check`. * Updated stable API docs to document only the Session 02 shipped local contract subset. * Updated the session security artifact with verified local-only, validation, redaction, and unsupported-boundary posture. **Commands Run**: * `npx biome format --write ...` * `npm --workspace packages/protocol run typecheck` * `npm --workspace apps/server run typecheck` * `npx vitest run packages/protocol/tests/orchestration.test.ts apps/server/tests/orchestration.test.ts apps/server/tests/websocket.test.ts` * `npx biome lint ...` * `rg -n "[^[:ascii:]]" ` * `rg -n $'\r' ` * `git diff --check` **Validation Results**: * Protocol typecheck: passed. * Server typecheck: passed. * Focused Vitest suites: passed, 3 files, 16 tests. * Focused Biome lint: passed. * ASCII scan: passed. * LF scan: passed. * `git diff --check`: passed. **Files Changed**: * `docs/api/README_api.md` - documented local task queue and agent template routes plus WebSocket frames. * `docs/api/event-api-hook-contracts.md` - recorded Session 02 route-family and WebSocket contract status changes. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/security-compliance.md` - finalized security posture. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/tasks.md` - marked T020 and completion checklist complete. * `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/implementation-notes.md` - logged validation results. *** ## Session Summary Session implementation is complete. | Metric | Value | | --------------- | -------------------------------------------------------------------------------------------------------- | | Tasks Completed | 20 / 20 | | Focused Tests | 16 passed | | BQC Fixes | Applied across validation, queue manager, routes, WebSocket payloads, and unsupported-route preservation | | Blockers | 0 | Ready for the validate workflow step. --- # Agent Instructions This documentation is published with GitBook. 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