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# Implementation Summary

**Session ID**: `phase10-session03-server-ingest-codex-lifecycle` **Package**: `apps/server, packages/protocol` **Completed**: 2026-05-31 **Duration**: 3 hours

***

## Overview

This session made Codex lifecycle ingest first-class in the local server path. The server now normalizes Codex aliases into the existing hero, mission, tool-use, permission, and subagent lineage flows, while the shared protocol documents the bounded Codex-safe ingest vocabulary. Existing Claude lifecycle behavior stayed intact, and unknown Codex named events remain bounded opaque mission events.

Validation passed with 22/22 tasks complete, 8/8 session deliverables found, and both focused protocol and server test suites passing.

***

## Deliverables

### Files Created

| File                                                                                           | Purpose                                                            | Lines |
| ---------------------------------------------------------------------------------------------- | ------------------------------------------------------------------ | ----- |
| `apps/server/tests/fixtures/event-ingest/codexLifecycle.ts`                                    | Sanitized reusable Codex lifecycle fixture for server ingest tests | \~120 |
| `.spec_system/specs/phase10-session03-server-ingest-codex-lifecycle/IMPLEMENTATION_SUMMARY.md` | Session closeout summary                                           | \~80  |

### Files Modified

| File                                                                         | Changes                                                                                                                         |
| ---------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------- |
| `packages/protocol/src/ingest.ts`                                            | Added bounded Codex alias fields and clarified compact metadata ownership                                                       |
| `packages/protocol/tests/ingest.test.ts`                                     | Covered Codex alias fields, hook metadata, tool names, turn ids, and `codex-cli` typing                                         |
| `apps/server/src/lib/eventIngest.ts`                                         | Normalized Codex aliases, bounded metadata, opaque allowlist fields, and `SubagentStart` classification                         |
| `apps/server/src/routes/event.ts`                                            | Accepted `codex-cli`, consumed normalized tool aliases, and preserved the existing hero, mission, permission, and lineage paths |
| `apps/server/tests/eventIngest.test.ts`                                      | Added full Codex lifecycle, unknown-event, alias, and Claude regression tests                                                   |
| `apps/server/tests/fixtures/event-ingest/README.md`                          | Documented the sanitized Codex lifecycle fixture and privacy boundaries                                                         |
| `docs/api/event-api-hook-contracts.md`                                       | Updated source-backed ingest contract notes for Codex lifecycle support and no-hosted-telemetry claims                          |
| `.spec_system/state.json`                                                    | Marked the session complete and advanced session history                                                                        |
| `.spec_system/PRD/phase_10/PRD_phase_10.md`                                  | Marked Session 03 complete and updated phase progress                                                                           |
| `.spec_system/PRD/PRD.md`                                                    | Updated the master Phase 10 status map                                                                                          |
| `.spec_system/specs/phase10-session03-server-ingest-codex-lifecycle/spec.md` | Marked the session complete                                                                                                     |
| `apps/server/package.json`                                                   | Bumped the patch version                                                                                                        |

***

## Technical Decisions

1. **Boundary normalization stayed server-side**: Codex aliases are resolved at ingest so the downstream hero, mission, tool, and lineage paths can stay unchanged.
2. **Opaque fallback stayed bounded**: unknown Codex named events still emit compact mission-event frames instead of raw payload bodies.

***

## Test Results

| Metric   | Value                                                         |
| -------- | ------------------------------------------------------------- |
| Tests    | 17 focused suites + workspace run                             |
| Passed   | 17 focused suites passed; workspace run passed with 1 skipped |
| Coverage | Not reported                                                  |

***

## Lessons Learned

1. Codex lifecycle support works best when shared protocol aliases and server normalization move together.
2. Session closeout should update validation, phase tracking, and versioning in one pass to keep the workflow state consistent.

***

## Future Considerations

Items for future sessions:

1. Session 04 should surface Codex labels and filters in the web cockpit.
2. Keep Codex-sensitive payloads bounded as web exposure expands.

***

## Session Statistics

* **Tasks**: 22 completed
* **Files Created**: 2
* **Files Modified**: 12
* **Tests Added**: 17 focused suites
* **Blockers**: 0 resolved


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