---
phase: 05-documentation
plan: 01
subsystem: documentation
tags:
  [
    claude-md,
    day-boundary,
    crossover-tid,
    monitoring,
    kintsugi,
    heartbeat,
    seeder,
  ]

# Dependency graph
requires:
  - phase: 01-crossover-tid-utility
    provides: get_crossover_tid() shared utility documented
  - phase: 02-seeder-day-boundary-backfill
    provides: _backfill_yesterday_boundary() documented
  - phase: 03-kintsugi-parquet-trust
    provides: Parquet trust gate documented
  - phase: 04-heartbeat-coverage
    provides: get_heartbeat_symbols() documented
provides:
  - "5 CLAUDE.md files updated with v5.0 day-boundary completeness documentation"
  - "L9 monitoring layer documented in root CLAUDE.md"
  - "Crossover TID terminology updated to reflect shared utility"
affects: []

# Tech tracking
tech-stack:
  added: []
  patterns: []

key-files:
  created: []
  modified:
    - scripts/CLAUDE.md
    - python/opendeviationbar/kintsugi/CLAUDE.md
    - scripts/heartbeat/CLAUDE.md
    - python/opendeviationbar/CLAUDE.md
    - CLAUDE.md

key-decisions:
  - "Placed seeder boundary docs between existing seeder service design and status sections"
  - "Placed Parquet trust gate docs between Writer Ownership and Shard Sort Key in kintsugi CLAUDE.md"
  - "Placed dynamic symbol coverage docs before Children section in heartbeat CLAUDE.md"

patterns-established: []

requirements-completed: [DOC-01]

# Metrics
duration: 2min
completed: 2026-03-25
---

# Phase 5 Plan 1: Documentation Summary

**v5.0 day-boundary completeness documented across 5 CLAUDE.md files: seeder backfill, kintsugi Parquet trust gate, heartbeat dynamic symbols, crossover.py module mapping, and L9 monitoring layer**

## Performance

- **Duration:** 2 min
- **Started:** 2026-03-25T08:40:38Z
- **Completed:** 2026-03-25T08:43:14Z
- **Tasks:** 2
- **Files modified:** 5

## Accomplishments

- Documented seeder day-boundary backfill mechanism in scripts/CLAUDE.md (root cause, fix, state markers)
- Documented kintsugi Parquet trust gate in kintsugi/CLAUDE.md (completeness check, fallback, orphan marking)
- Documented dynamic heartbeat symbol coverage in heartbeat/CLAUDE.md (registry lookup, fallback, lru_cache)
- Added crossover.py to python/opendeviationbar/CLAUDE.md file-to-responsibility mapping
- Added L9 protection layer to root CLAUDE.md monitoring table and updated Crossover TID terminology

## Task Commits

Each task was committed atomically:

1. **Task 1: Update spoke CLAUDE.md files** - `8d808d5` (docs)
2. **Task 2: Update root CLAUDE.md** - `89b4fe0` (docs)

## Files Created/Modified

- `scripts/CLAUDE.md` - Added "Seeder Day-Boundary Backfill (v5.0)" section with mechanism, state markers, crossover TID details
- `python/opendeviationbar/kintsugi/CLAUDE.md` - Added "Parquet Trust Gate (v5.0)" section with completeness check and fallback behavior
- `scripts/heartbeat/CLAUDE.md` - Added "Dynamic Symbol Coverage (v5.0)" section with get_heartbeat_symbols and graceful fallback
- `python/opendeviationbar/CLAUDE.md` - Added crossover.py row to File-to-Responsibility Mapping table
- `CLAUDE.md` - Added L9 monitoring layer, updated layer count to 9 (v5.0), updated Crossover TID terminology

## Decisions Made

- Placed new sections near related existing content for discoverability (seeder boundary near seeder docs, trust gate near writer ownership)
- Referenced v5.0 in all new section headers for traceability

## Deviations from Plan

None - plan executed exactly as written.

## Issues Encountered

None

## User Setup Required

None - no external service configuration required.

## Known Stubs

None - documentation-only changes, no code stubs.

## Next Phase Readiness

- All v5.0 documentation complete
- CLAUDE.md network fully reflects phases 1-4 implementation changes

## Self-Check: PASSED

- [x] scripts/CLAUDE.md exists
- [x] python/opendeviationbar/kintsugi/CLAUDE.md exists
- [x] scripts/heartbeat/CLAUDE.md exists
- [x] python/opendeviationbar/CLAUDE.md exists
- [x] CLAUDE.md exists
- [x] Commit 8d808d5 exists (Task 1)
- [x] Commit 89b4fe0 exists (Task 2)

---

_Phase: 05-documentation_
_Completed: 2026-03-25_
