> 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_summary.md). # Implementation Summary **Session ID**: `phase03-session02-task-queue-and-agent-template-contracts` **Package**: Cross-cutting (`packages/protocol`, `apps/server`) **Completed**: 2026-05-29 **Duration**: 1.0 hours *** ## Overview This session added local-first task queue and agent template contracts in `packages/protocol`, wired bounded in-memory orchestration state and routes in `apps/server`, and exposed compact WebSocket and REST shapes without enabling execution, hosted collaboration, or remote command control. *** ## Deliverables ### Files Created | File | Purpose | Lines | | -------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------- | ----- | | `packages/protocol/src/taskQueue.ts` | Protocol-owned queue state, transitions, rejection codes, and frame metadata | \~168 | | `packages/protocol/src/agentTemplates.ts` | Protocol-owned agent template catalog and suggestion contracts | \~110 | | `packages/protocol/tests/orchestration.test.ts` | Focused contract coverage for queue and template protocol shapes | \~142 | | `apps/server/src/lib/orchestrationValidation.ts` | Request validation and compact orchestration error mapping | \~346 | | `apps/server/src/managers/taskQueue.ts` | Bounded in-memory queue manager and event metadata helpers | \~310 | | `apps/server/src/managers/agentTemplates.ts` | Local template manager with deterministic list and suggestion behavior | \~251 | | `apps/server/src/routes/orchestration.ts` | Local orchestration REST routes for queue and template state | \~154 | | `apps/server/tests/orchestration.test.ts` | Server route coverage for queue and template flows | \~199 | | `.spec_system/specs/phase03-session02-task-queue-and-agent-template-contracts/IMPLEMENTATION_SUMMARY.md` | Session completion summary and handoff record | \~97 | ### Files Modified | File | Changes | | ------------------------------------------- | --------------------------------------------------------------------------------- | | `packages/protocol/src/index.ts` | Exported the new task queue and agent template protocol modules. | | `packages/protocol/src/events.ts` | Added compact queue/template WebSocket update frames. | | `packages/protocol/src/rest.ts` | Added orchestration REST contracts and shared route typing. | | `apps/server/src/server.ts` | Wired the orchestration routes into the server. | | `apps/server/src/lib/unsupportedRoutes.ts` | Preserved deterministic unsupported responses for out-of-scope route families. | | `apps/server/tests/websocket.test.ts` | Added coverage for queue and template WebSocket events. | | `docs/api/README_api.md` | Documented the new orchestration API surface. | | `docs/api/event-api-hook-contracts.md` | Documented the new event contract additions. | | `.spec_system/state.json` | Marked the session complete and cleared the current session pointer. | | `.spec_system/PRD/phase_03/PRD_phase_03.md` | Updated phase progress, completed session tracking, and upcoming session pointer. | | `package.json` | Bumped the workspace root version to `0.1.36`. | | `package-lock.json` | Bumped the workspace root lockfile version to `0.1.36`. | *** ## Technical Decisions 1. **Protocol first**: queue and template contracts were added in `packages/protocol` before the server adopted them, so app code consumes a single shared source of truth. 2. **Bounded local state**: server managers stay in-memory and deterministic, with no execution path for queued items or templates. *** ## Test Results | Metric | Value | | -------- | ------------ | | Tests | 16 | | Passed | 16 | | Coverage | Not measured | *** ## Lessons Learned 1. Session 02 needed explicit contract and manager boundaries so later orchestration work can reuse stable shapes without importing raw prompts or execution state. 2. Compact event payloads and deterministic unsupported responses keep the local server predictable while leaving out-of-scope route families intact. *** ## Future Considerations Items for future sessions: 1. Extend these contracts into subagent lineage and mission graph runtime work. 2. Reuse the validation and event metadata patterns for guarded action and CLI diagnostics sessions. *** ## Session Statistics * **Tasks**: 20 completed * **Files Created**: 9 * **Files Modified**: 12 * **Tests Added**: 2 * **Blockers**: 0 resolved --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. 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