# V2 P8 Program Closeout (P8A + P8B + P8C)

Status: Complete

## Program intent
P8 delivered authority closure across three layers:
- **P8A** Runtime/State authority cutover
- **P8B** Continuity surface purification
- **P8C** Retrieval/schema closure

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## P8A (Runtime/State Authority Cutover)

### Outcome
- Engine-owned sequencing is authoritative for turn finalize + flush.
- Crawler updates now queue to session side logs and merge at flush-time.
- Legacy trigger paths remain compatibility wrappers only.

### Key commits (branch: `feat/agent-end-bridge`)
- `6edb48b` — Step 3: crawler updates moved to session-local side logs
- `7712b76` — Step 4: flush merge of crawler side logs into projection
- `36f5229` — Step 5 fix: restored flush checkpoints + continuity sweep stabilization

### Authority state
- Live session authority: `.beads/session-<id>.jsonl`
- Side-log authority (pre-merge): `.beads/events/crawler-updates-<session>.jsonl`
- Index role: projection/cache, updated via canonical merge/flush

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## P8B (Continuity Surface Purification)

### Outcome
- Continuity authority order is explicit and enforced by tests.
- Derived continuity artifacts are demoted and tagged as non-authoritative.
- Direct continuity file access is restricted to canonical modules.

### Key commits
- `fe6cb74` — Step 1: continuity authority contract hardening
- `f877943` — Step 2: derived artifact demotion + metadata normalization
- `90bfae6` — Step 3: read-path purification guard
- `8967265` — Step 4: continuity authority invariants
- `db7b5b9` — Step 5: sweep + closeout

### Final continuity authority map
1. `rolling-window.records.json` (runtime continuity authority)
2. `promoted-context.meta.json` (fallback metadata only)
3. `promoted-context.md` (derived/operator artifact only)

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## P8C (Retrieval / Schema Closure)

### Outcome
- Retrieval schema ownership is explicit and centralized.
- Runtime retrieval wrappers publish stable schema/contract metadata defaults.
- Retrieval path purity and compatibility invariants are enforced.

### Key commits
- `8e1e737` — Step 1: schema authority map hardening
- `34f58b0` — Step 2: retrieval wrapper contract normalization
- `91634b1` — Step 3: retrieval path purity guard
- `07ec787` — Step 4: compatibility invariants lock
- `c6d0d38` — Step 5: sweep + closeout

### Final retrieval/schema authority map
- Schema authority: `core_memory.retrieval.search_form`
- Canonical runtime retrieval surface: `core_memory.tools.memory::{get_search_form,search,execute}`
- Compatibility shims (non-canonical runtime entry):
  - `core_memory.tools.memory_search`
  - `core_memory.memory_skill.form`

---

## Regression status at program close
- P8B sweep: **15 passed / 0 failed**
- P8C sweep: **12 passed / 0 failed**

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## Final authority posture (post-P8)
- Runtime sequencing: `core_memory.memory_engine`
- Trigger orchestrator: compatibility wrapper over engine authority
- Continuity injection: record store authority with explicit fallback ladder
- Retrieval contracts: schema-stable wrapper outputs + purity guards

Program closed with no unresolved authority ambiguities in the targeted P8 domains.
