> 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/phase20-session02-queue-terminal-execution/implementation_summary.md). # Implementation Summary **Session ID**: `phase20-session02-queue-terminal-execution` **Package**: null **Completed**: 2026-06-28 **Duration**: 2 hours *** ## Overview Phase 20 Session 02 delivered the first executable queue slice. Terminal queue entries can now carry scoped executable payloads, dispatch through a server-owned coordinator, run via the terminal runtime, update queue and command-center execution state, and expose safe queue summaries plus scoped terminal links without leaking raw command text or output through broad rows, events, diagnostics, or docs. *** ## Deliverables ### Files Created | File | Purpose | Lines | | ------------------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------- | ----- | | `apps/server/src/managers/taskExecutionCoordinator.ts` | Coordinates terminal queue dispatch, PTY readiness, command-center execution runs, queue state, terminal sessions, and duplicate dispatch behavior. | 472 | | `apps/server/tests/taskExecutionCoordinator.test.ts` | Covers terminal coordinator success, PTY unavailable, timeout, killed result propagation, and duplicate dispatch behavior with fake PTY fixtures. | 310 | ### Files Modified | File | Changes | | --------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------- | | `packages/protocol/src/taskQueue.ts` | Added terminal executable queue payloads, safe execution summaries, response links, parser helpers, and raw-field rejection. | | `packages/protocol/tests/orchestration.test.ts` | Added executable queue, safe event, queue-targeted execution, and privacy contract coverage. | | `apps/server/src/lib/orchestrationDiagnostics.ts` | Added compact terminal queue readiness and result diagnostics counters. | | `apps/server/src/lib/orchestrationValidation.ts` | Added terminal executable create, update, preview, and dispatch validators. | | `apps/server/src/managers/taskQueue.ts` | Added private executable payload storage, safe execution summaries, and execution mutation support. | | `apps/server/src/routes/orchestration.ts` | Routed terminal dispatch through the coordinator and added truthful metadata-only start-tracking behavior. | | `apps/server/src/server.ts` | Injected the task execution coordinator with existing queue, terminal, command-center, and broadcaster dependencies. | | `apps/server/tests/orchestration.test.ts` | Added route, validation, dual event, privacy, unavailable, stale revision, and duplicate dispatch coverage. | | `apps/server/tests/orchestrationDiagnostics.test.ts` | Added terminal queue diagnostics privacy and readiness coverage. | | `apps/web/src/lib/orchestrationApi.ts` | Added terminal executable queue helpers, dispatch/start-tracking calls, response parsing, and broad payload guards. | | `apps/web/src/lib/orchestrationUi.ts` | Added safe terminal execution view models, retry state, labels, summaries, and links. | | `apps/web/src/lib/commandCenterUi.ts` | Split terminal execution verbs from metadata-only tracking verbs. | | `apps/web/src/components/orchestration/QueueWorkbench.tsx` | Added terminal queue creation controls, execution summaries, retry controls, and terminal links. | | `apps/web/src/components/orchestration/CommandCenterPanes.tsx` | Wired queue execution and terminal-session link callbacks. | | `apps/web/src/components/orchestration/OrchestrationShell.tsx` | Branched terminal dispatch from metadata-only start-tracking and opened linked terminal sessions. | | `apps/web/src/components/orchestration/OrchestrationTabs.tsx` | Passed terminal session open callbacks through the tab boundary. | | `apps/web/src/store/useGameStore.ts` | Reconciled queue-targeted execution events, linked in-flight cleanup, and selected terminal-session repair. | | `apps/web/tests/orchestrationApi.test.ts` | Added terminal queue API, parsing, start-tracking, and privacy tests. | | `apps/web/tests/orchestrationUi.test.ts` | Added safe terminal execution view model tests. | | `apps/web/tests/CommandCenterPanes.test.tsx` | Added integrated terminal queue controls, retry, execution link, and terminal link tests. | | `apps/web/tests/TerminalRuntimeDrawer.test.tsx` | Added linked terminal-session drawer output scoping coverage. | | `apps/web/tests/commandCenterStore.test.ts` | Added queue-targeted execution event reconciliation and mutation cleanup coverage. | | `apps/cli/src/lib/orchestrationDiagnostics.js` | Added compact terminal queue diagnostics summaries while preserving redaction. | | `apps/cli/tests/orchestrationDiagnostics.test.js` | Added terminal queue diagnostics and privacy tests. | | `tests/e2e/orchestration-command-center.e2e.ts` | Added desktop and mobile queue-to-terminal drawer e2e coverage. | | `docs/api/README_api.md` | Documented terminal executable queue routes, response fields, diagnostics, and privacy boundaries. | | `docs/api/event-api-hook-contracts.md` | Documented terminal queue dispatch events, execution update pairing, and raw-field exclusions. | | `apps/web/README_web.md` | Documented terminal queue UX, retry, drawer links, and store reconciliation behavior. | | `apps/cli/README_cli.md` | Documented compact terminal queue diagnostics and privacy limits. | | `.spec_system/specs/phase20-session02-queue-terminal-execution/tasks.md` | Recorded all 18 tasks complete. | | `.spec_system/specs/phase20-session02-queue-terminal-execution/implementation-notes.md` | Recorded task evidence and verification results. | | `.spec_system/specs/phase20-session02-queue-terminal-execution/code-review.md` | Recorded review findings and resolved fixes. | | `.spec_system/specs/phase20-session02-queue-terminal-execution/security-compliance.md` | Recorded security and GDPR assessment. | | `.spec_system/specs/phase20-session02-queue-terminal-execution/validation.md` | Recorded final PASS validation evidence. | | `.spec_system/state.json` | Marked the session complete and cleared `current_session`. | | `.spec_system/PRD/phase_20/PRD_phase_20.md` | Updated Phase 20 progress and Session 02 completion tracking. | | `package.json` | Bumped root version from 0.1.168 to 0.1.169. | | `package-lock.json` | Bumped lockfile root version from 0.1.168 to 0.1.169. | | `README.md` | Updated visible version badge from 0.1.168 to 0.1.169. | *** ## Technical Decisions 1. **Server-owned execution coordinator**: Queue terminal dispatch lives in `TaskExecutionCoordinator` so routes stay thin and idempotency, PTY readiness, execution-run updates, terminal dispatch, queue state, and failure handling share one boundary. 2. **Broad-summary and scoped-detail split**: Raw command text and terminal output stay in request-scoped executable handling and terminal session detail, while queue rows, events, diagnostics, docs, and replayable summaries expose only safe labels, states, result summaries, and links. 3. **Truthful metadata-only route**: Existing non-executable queue rows use start-tracking behavior instead of dispatch wording, preserving user trust while executable terminal rows perform real local execution. 4. **Duplicate and conflict protection**: In-flight terminal dispatches reuse existing runs for duplicate dispatch keys and block conflicting queue mutations until the terminal run completes. *** ## Test Results | Metric | Value | | -------- | ------------- | | Tests | 3004 | | Passed | 3003 | | Coverage | Not collected | Validation evidence: * `npm run format:check` - PASS * `npm run lint` - PASS * `npm run typecheck` - PASS * `npm test` - PASS, 3001 passed and 1 skipped * `npx playwright test tests/e2e/orchestration-command-center.e2e.ts --project=app-desktop -g "dispatches a terminal queue row"` - PASS * `npx playwright test tests/e2e/orchestration-command-center.e2e.ts --project=app-mobile -g "dispatches a terminal queue row"` - PASS * `git diff --check` - PASS * ASCII/LF deliverable checks - PASS * `npm run security:secrets` - PASS *** ## Lessons Learned 1. Broad response guards should reject blocked raw field keys, not harmless text values containing words such as `stdout` or `commandText`. 2. Explicit command labels need the same redaction treatment as fallback labels before they enter public queue summaries. 3. Queue execution locks are necessary around async terminal dispatch so later completion updates cannot overwrite conflicting row mutations. *** ## Future Considerations Items for future sessions: 1. Reuse the coordinator and safe execution summary patterns for Queue Git Execution in Session 03. 2. Keep raw Git output, diffs, paths, and patch data in scoped detail only when adding Git and file executor slices. 3. Preserve the truthful unavailable-state and start-tracking vocabulary for executor families that are not yet proven end to end. *** ## Session Statistics * **Tasks**: 18 completed * **Files Created**: 2 * **Files Modified**: 38 * **Tests Added**: Focused protocol, server, web, CLI, and Playwright coverage * **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. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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