> 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/phase01-session01-event-ingest-contract-reconciliation/implementation-notes.md). # Implementation Notes **Session ID**: `phase01-session01-event-ingest-contract-reconciliation` **Package**: Cross-cutting (`packages/protocol`, `apps/server`, `apps/hooks`) **Started**: 2026-05-29 02:50 **Last Updated**: 2026-05-29 04:32 *** ## Session Progress | Metric | Value | | ------------------- | ------- | | Tasks Completed | 24 / 24 | | Estimated Remaining | 0 hours | | Blockers | 0 | *** ### Task T024 - Validate ASCII encoding and LF line endings **Started**: 2026-05-29 04:29 **Completed**: 2026-05-29 04:32 **Duration**: 3 minutes **Notes**: * Ran ASCII scan over all touched session, source, test, and documentation files. * Ran carriage-return scan over the same touched file set to verify LF line endings. * Recorded validation results in `validation.md`. * Also ran `npm --workspace packages/protocol run typecheck`, `npm --workspace apps/server run typecheck`, and the focused Vitest command after formatting. **Files Changed**: * `.spec_system/specs/phase01-session01-event-ingest-contract-reconciliation/validation.md` - recorded validation pass. * `.spec_system/specs/phase01-session01-event-ingest-contract-reconciliation/implementation-notes.md` - recorded closeout checks. *** ### Task T023 - Run focused protocol, server, and hook tests **Started**: 2026-05-29 04:23 **Completed**: 2026-05-29 04:29 **Duration**: 6 minutes **Notes**: * Ran `npx vitest run packages/protocol/tests/ingest.test.ts apps/server/tests/eventIngest.test.ts apps/server/tests/routes.test.ts apps/hooks/tests/hookPayloads.test.js`. * Initial run failed on two issues: hook fixture tests expected explicit object-property syntax instead of accepting shorthand fields, and unsupported type-only payloads still emitted an opaque event. * Fixed the fixture assertion to accept shorthand payload fields and added an explicit `noop` route branch for unsupported type-only payloads. * Reran the same focused command successfully: 4 test files passed, 22 tests passed. **Files Changed**: * `apps/hooks/tests/hookPayloads.test.js` - made payload field assertions accept object shorthand. * `apps/server/src/routes/event.ts` - kept unsupported type-only payloads as accepted no-ops. * `.spec_system/specs/phase01-session01-event-ingest-contract-reconciliation/implementation-notes.md` - recorded focused test results. **BQC Fixes**: * Contract alignment: unsupported type-only payloads now match the declared no-op behavior. *** ### Task T022 - Update existing REST lifecycle tests **Started**: 2026-05-29 04:18 **Completed**: 2026-05-29 04:23 **Duration**: 5 minutes **Notes**: * Updated existing route tests to store and assert `sessionId` aliases on spawned heroes. * Changed the full lifecycle route test to use the saved session id as the later hook `heroId`, matching current hook behavior. * Added response envelope and tool-use id/result assertions for the alias flow. **Files Changed**: * `apps/server/tests/routes.test.ts` - aligned existing REST lifecycle tests with alias behavior. *** ### Task T021 - Add server route ingest tests **Started**: 2026-05-29 04:07 **Completed**: 2026-05-29 04:18 **Duration**: 11 minutes **Notes**: * Added focused route tests with captured broadcaster events. * Covered Claude hook lifecycle through session aliasing, selected OpenClaw type-only compatibility, malformed non-object bodies, missing dispatch keys, unknown named opaque fallback, and unknown type-only no-op behavior. **Files Changed**: * `apps/server/tests/eventIngest.test.ts` - added event ingest route tests. **BQC Fixes**: * Contract alignment: tests exercise response envelopes, generated hero ids, mission ids, and emitted protocol event types. * Failure path completeness: tests cover both malformed and missing-dispatch request paths. *** ### Task T020 - Update protocol README docs **Started**: 2026-05-29 04:06 **Completed**: 2026-05-29 04:07 **Duration**: 1 minute **Notes**: * Documented `src/ingest.ts` as the owner of hook and OpenClaw compatibility ingest vocabulary. **Files Changed**: * `packages/protocol/README_protocol.md` - added ingest ownership guidance. *** ### Task T019 - Update hook README docs **Started**: 2026-05-29 04:03 **Completed**: 2026-05-29 04:06 **Duration**: 3 minutes **Notes**: * Updated hook handler disposition claims to distinguish alias-driven lifecycle behavior, first-class file/bash/input/permission events, and opaque subagent/git guard events. **Files Changed**: * `apps/hooks/README_hooks.md` - aligned hook behavior summary with current ingest handling. *** ### Task T018 - Update concise API docs **Started**: 2026-05-29 04:00 **Completed**: 2026-05-29 04:03 **Duration**: 3 minutes **Notes**: * Updated the concise `/event` mapping to summarize session aliasing, selected type-only compatibility, first-class file/bash/input/permission events, and bounded opaque fallback behavior. **Files Changed**: * `docs/api/README_api.md` - refreshed concise event ingest summary. *** ### Task T017 - Update detailed event ingest contract docs **Started**: 2026-05-29 03:50 **Completed**: 2026-05-29 04:00 **Duration**: 10 minutes **Notes**: * Updated the detailed `/event` contract to describe route-boundary validation, session alias resolution, selected type-only compatibility, first-class hook mappings, and bounded opaque fallbacks. * Updated the Claude hook result matrix so docs distinguish first-class, generic tool-use, and opaque behavior. * Reclassified the selected OpenClaw subset as shipped compatibility while keeping broader historical cookbook events unsupported. **Files Changed**: * `docs/api/event-api-hook-contracts.md` - reconciled detailed event, hook, and OpenClaw compatibility behavior with the implementation. *** ### Task T016 - Add hook fixture tests **Started**: 2026-05-29 03:42 **Completed**: 2026-05-29 03:50 **Duration**: 8 minutes **Notes**: * Added JavaScript Vitest coverage for `hooks.json` handler mappings. * Added source-backed fixture assertions for lifecycle, file, bash, subagent, git guard, input, and permission payload fields. * Covered truncation limits used by active hook handlers. * Verified that a live HTTP collector is not reliable for these tests because handlers intentionally fire-and-forget and exit immediately; the tests therefore assert the static emitted payload contract directly. **Files Changed**: * `apps/hooks/tests/hookPayloads.test.js` - added hook payload fixture tests. **BQC Fixes**: * Contract alignment: tests now catch drift between hook handler mapping, emitted payload fields, and bounded-detail expectations. *** ### Task T015 - Preserve opaque fallback payloads **Started**: 2026-05-29 03:38 **Completed**: 2026-05-29 03:42 **Duration**: 4 minutes **Notes**: * Updated opaque fallback to preserve hook-specific `type` values for subagent, git guard, and type-only opaque payloads. * Added active-mission-aware fallback id selection before falling back to resolved hero id, session id, or `unknown`. * Continued using bounded allowlisted fallback data instead of forwarding complete request bodies. **Files Changed**: * `apps/server/src/routes/event.ts` - completed bounded opaque fallback behavior. **BQC Fixes**: * Error information boundaries: opaque fallbacks remain bounded and allowlisted. * Contract alignment: unsupported named and opaque hook families now land as deterministic `mission_event` frames. *** ### Task T014 - Implement input and permission mapping **Started**: 2026-05-29 03:31 **Completed**: 2026-05-29 03:38 **Duration**: 7 minutes **Notes**: * Added first-class `awaiting_input`, `input_received`, and `permission_request` event emission. * Bounded prompt, option, response, rationale, and detail fields before emitting protocol events. * Added explicit `missing_hero` opaque fallback events when session-scoped input or permission payloads cannot resolve a hero. * Preserved generic tool-use recording for active missions where applicable. **Files Changed**: * `apps/server/src/routes/event.ts` - added first-class input and permission ingest handling. **BQC Fixes**: * Failure path completeness: missing hero references now emit a deterministic bounded fallback event instead of silently disappearing. * Error information boundaries: permission and input details are bounded before broadcast. * Contract alignment: hook-specific input and permission types now map to existing protocol events. *** ### Task T013 - Implement file and bash payload mapping **Started**: 2026-05-29 03:25 **Completed**: 2026-05-29 03:31 **Duration**: 6 minutes **Notes**: * Added alias-aware generic tool-use recording for file and bash ingest payloads. * Reused existing tool-use ids when a duplicate payload arrives and emits `tool_use` only for newly recorded tool uses. * Emitted first-class `file_access` and `bash_command` protocol events when a resolved hero has an active mission. **Files Changed**: * `apps/server/src/routes/event.ts` - added file and bash mapping through shared tool recording. **BQC Fixes**: * Duplicate action prevention: duplicate `toolUseId` values reuse the existing mission tool use instead of appending another entry. * Contract alignment: route now emits generic tool-use events plus first-class file and bash protocol events from the declared ingest vocabulary. *** ### Task T012 - Implement lifecycle mapping with alias resolution **Started**: 2026-05-29 03:21 **Completed**: 2026-05-29 03:25 **Duration**: 4 minutes **Notes**: * Updated `mission_start` handling to resolve heroes through generated ids or external session aliases. * Added fallback materialization for session-scoped mission starts when the previous `hero_active` event was missed. * Reused an active mission on duplicate starts for the same resolved hero and cleared `activeMissionId` on idle. * Updated `hero_idle` handling to resolve through aliases and return generated hero and mission ids when present. **Files Changed**: * `apps/server/src/routes/event.ts` - implemented alias-aware mission lifecycle handling. **BQC Fixes**: * Duplicate action prevention: repeated mission starts for a hero with an active mission reuse the active mission instead of creating another. * State freshness on re-entry: idle transitions clear the active mission pointer. * Contract alignment: `UserPromptSubmit`, `mission_start`, `Stop`, and `hero_idle` now share the same alias resolution path. *** ### Task T011 - Implement SessionStart and hero\_active materialization **Started**: 2026-05-29 03:17 **Completed**: 2026-05-29 03:21 **Duration**: 4 minutes **Notes**: * Switched route dispatch to normalized ingest kinds. * Added shared hero materialization for `SessionStart` and selected type-only `hero_active` payloads. * Used the roster session alias index so repeated materialization for the same external session id reuses the existing hero and avoids duplicate spawn events. **Files Changed**: * `apps/server/src/routes/event.ts` - added normalized hero materialization branch. **BQC Fixes**: * Duplicate action prevention: materialization checks session alias presence before emitting a new spawn event. * Contract alignment: route now accepts selected type-only `hero_active` as the protocol ingest contract declares. *** ### Task T010 - Refactor event route to use ingest normalizer **Started**: 2026-05-29 03:10 **Completed**: 2026-05-29 03:17 **Duration**: 7 minutes **Notes**: * Routed `/event` through `normalizeEventIngest` before reading request fields. * Added explicit 400 JSON response for malformed non-object bodies. * Replaced direct untrusted field reads with bounded string, boolean, id, and prompt helpers. * Kept existing named hook dispatch behavior intact as the baseline for the next mapping tasks. **Files Changed**: * `apps/server/src/routes/event.ts` - refactored request parsing and malformed-body handling. **BQC Fixes**: * Trust boundary enforcement: all route handling now starts from normalized object input. * Failure path completeness: malformed bodies receive a clear caller-visible error envelope. * Error information boundaries: unknown named fallbacks now use bounded allowlisted data. *** ### Task T009 - Extend hero roster session alias lookup **Started**: 2026-05-29 03:07 **Completed**: 2026-05-29 03:10 **Duration**: 3 minutes **Notes**: * Added a `sessionId` index alongside existing generated hero id lookups. * Added `getBySessionId`, `resolve`, `resolveAny`, and `registerSessionAlias` helpers for route code. * Made `spawn` reuse an existing hero when the same external session alias is seen again, while preserving normal generated id lookup behavior. **Files Changed**: * `apps/server/src/managers/heroRoster.ts` - added alias storage and lookup methods. **BQC Fixes**: * Duplicate action prevention: repeated spawn calls for the same external session alias reuse and refresh the existing hero instead of creating duplicates. * State freshness on re-entry: duplicate alias spawns refresh cwd, tty, cli, model, and last activity metadata. *** ### Task T008 - Create server ingest normalization helpers **Started**: 2026-05-29 03:00 **Completed**: 2026-05-29 03:07 **Duration**: 7 minutes **Notes**: * Added a focused server helper for `/event` body validation, dispatch normalization, supported type-only classification, alias candidate extraction, bounded opaque event data, and truncation helpers. * Kept malformed non-object request bodies on an explicit 400 path and kept unsupported type-only payloads as accepted no-op classifications. **Files Changed**: * `apps/server/src/lib/eventIngest.ts` - created event ingest normalization and helper functions. **BQC Fixes**: * Trust boundary enforcement: route-boundary body validation now rejects non-object bodies before route logic can read arbitrary shapes. * Failure path completeness: malformed bodies now have an explicit rejected response envelope. * Error information boundaries: opaque fallback data is allowlisted and bounded instead of forwarding the full request body. *** ### Task T007 - Add protocol ingest vocabulary tests **Started**: 2026-05-29 02:58 **Completed**: 2026-05-29 03:00 **Duration**: 3 minutes **Notes**: * Added tests for Claude dispatch names, selected OpenClaw compatibility types, first-class hook types, opaque fallback types, response envelopes, and shared bounds. * Covered unsupported vocabulary boundaries such as `set_race`, `team_member_detected`, and unknown OpenClaw control names. **Files Changed**: * `packages/protocol/tests/ingest.test.ts` - added ingest contract tests. *** ### Task T006 - Export ingest contracts **Started**: 2026-05-29 02:58 **Completed**: 2026-05-29 02:58 **Duration**: 1 minute **Notes**: * Exported the ingest contract module through the protocol public entry point. **Files Changed**: * `packages/protocol/src/index.ts` - added `./ingest.js` export. *** ### Task T005 - Add session alias fields to hero contracts **Started**: 2026-05-29 02:56 **Completed**: 2026-05-29 02:57 **Duration**: 2 minutes **Notes**: * Added optional `sessionId` to `Hero` and `HeroSpawnRequest` so hook and compatibility aliases are part of the shared protocol contract. * Replaced an existing non-ASCII dash in the touched protocol file. **Files Changed**: * `packages/protocol/src/heroes.ts` - added optional session alias fields. *** ### Task T004 - Create typed ingest contracts **Started**: 2026-05-29 02:52 **Completed**: 2026-05-29 02:56 **Duration**: 4 minutes **Notes**: * Added the shared ingest vocabulary constants for Claude hook names, selected OpenClaw compatibility types, first-class hook type mappings, and opaque fallback type families. * Added request payload unions and accepted/rejected response envelope types for `/event`. * Added runtime guard helpers so server code and tests can classify dispatch names without duplicating string lists. **Files Changed**: * `packages/protocol/src/ingest.ts` - created shared event ingest contract module. *** ### Task T003 - Create event ingest fixture notes **Started**: 2026-05-29 02:52 **Completed**: 2026-05-29 02:52 **Duration**: 4 minutes **Notes**: * Created fixture notes describing current Claude hook payload families, selected OpenClaw compatibility payloads, and privacy constraints for synthetic test data. * Kept the notes source-backed without copying historical runtime code from `EXAMPLES/`. **Files Changed**: * `apps/server/tests/fixtures/event-ingest/README.md` - documented event ingest fixture families and privacy rules. *** ### Task T002 - Include hook fixture tests in node Vitest project **Started**: 2026-05-29 02:51 **Completed**: 2026-05-29 02:51 **Duration**: 2 minutes **Notes**: * Added `apps/hooks/tests/**/*.test.js` to the node Vitest project so hook fixture tests run with the rest of the package-level node suites. * Replaced existing non-ASCII dash punctuation in the touched config comments to satisfy the session ASCII gate. **Files Changed**: * `vitest.config.ts` - included hook JavaScript tests in the node project. *** ## Task Log ### 2026-05-29 - Session Start **Environment verified**: * [x] Prerequisites confirmed * [x] Tools available * [x] Directory structure ready *** ### Task T001 - Review selected ingest vocabulary **Started**: 2026-05-29 02:50 **Completed**: 2026-05-29 02:50 **Duration**: 5 minutes **Notes**: * Reviewed current hook handlers in `apps/hooks/src/` and historical evidence in `EXAMPLES/findings/claude-hook-contract.md` and `EXAMPLES/package-0.4.1/plugin/openclaw/SKILL.md`. * Selected Claude hook dispatch names: `SessionStart`, `UserPromptSubmit`, `Stop`, `PreToolUse`, `PostToolUse`, `SubagentStop`, `PermissionRequest`, and `UserPromptCancel`. * Selected OpenClaw compatibility `type` values: `hero_active`, `mission_start`, `file_access`, `bash_command`, and `hero_idle`. * Selected first-class hook `type` values for protocol events: `file_access`, `bash_command`, `awaiting_input`, `input_received`, and `permission_request`. * Selected opaque fallback families: `subagent_spawn`, `subagent_complete`, `git_dirty`, and any named but unsupported hook or compatibility event. * Confirmed the key aliasing gap: current hook scripts send the saved Claude `sessionId` back as `heroId`, while the server currently stores only generated `hero_...` ids. **Files Changed**: * `.spec_system/specs/phase01-session01-event-ingest-contract-reconciliation/implementation-notes.md` - recorded environment verification and selected ingest vocabulary. *** --- # Agent Instructions This documentation is published with GitBook. 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