# V2-P6A Closeout Checklist

Status: Complete
Related: `docs/v2_p6a_kickoff.md`, `docs/v2_p6a_test_matrix.md`

## Goal
Confirm decisive authority-cutover outcomes for P6A.

## Step progress
- [x] Step 1 of 5 — session-first live authority foundation
- [x] Step 2 of 5 — memory engine ownership deepening
- [x] Step 3 of 5 — retrieval catalog canonical association sourcing
- [x] Step 4 of 5 — rolling surface canonical ownership tightening
- [x] Step 5 of 5 — full sweep + closeout

## Acceptance criteria
- [x] live session reads support session-surface-first authority policy
- [x] runtime center (`memory_engine.py`) owns normalization/preflight composition
- [x] catalog relation sourcing prioritizes canonical association records
- [x] rolling surface has explicit canonical owner module
- [x] no contract drift in memory execute/search/reason paths

## Validation evidence

### Full regression
- Command: `python -m unittest discover -s tests -p 'test_*.py'`
- Result: **178 passed / 0 failed**

### Eval snapshots
- `memory_execute_eval`: stable vs prior phase baseline
- `paraphrase_eval`: stable vs prior phase baseline

## Outcome
P6A is complete. Authority center-of-gravity moved materially toward target architecture:
- session-first live authority reader in place
- memory-engine runtime ownership expanded
- catalog relation sourcing corrected to canonical associations
- rolling surface ownership made explicit and canonical

## Next phase
Proceed to P6B (semantic closure + cleanup), with P6A as prerequisite satisfied.
