fix(agent-loop): recover unsigned ART planning merge

[Abiorh001]

PR Trust Bundle: WS-ENG-007-00R6

Intent

Restore signed-memory continuity after unsigned planning merge PR #197 without
granting ART, CI, AUTH, ENG, or product implementation authority.

Exact Scope

• Signed basis: bba4ba5f171a4438b072740707a5cf8bde49d9af.
• First recovered predecessor: PR docs(artifacts): reconcile submission bundle plan #197 / WS-ART-001-PLAN2 /
  03a05eeb8f129e0d5f226cc5c058965f43590a81.
• Second recovered predecessor: signed PR WS-AUTH-001-11: split project read hard cutover #201 / WS-AUTH-001-11 /
  f670b7058c71ad4d11a68c6e242e9fe501ae3aaf.
• Activation: only WS-ENG-007-00R6 as the direct-next main merge.
• Successors remain stopped: ART at WS-ART-001-03A, AUTH at
  WS-AUTH-001-11A, and ENG at WS-ENG-007-01; WS-CI-001-03 still requires
  its own signed planning start.

Reviewed Revision

7a22070fe66770fc229671421ab0a899c9b2c97d

Recovery code revision: f3eab24ecac32f959933369c1b5342bc901c7153.

Evidence

• 301 recovery, checker, and Agent Gate tests passed.
• Policy regression asserts the complete schema-v6 object exactly.
• Existing behavior tests prove signed-basis matching, ordered adjacency,
  merge-bound check selection, exemption consumption, wrong-basis rejection,
  and inert replay.
• The exact cross-initiative regression proves ART PLAN2 recovery while AUTH-11
  is signed-active, AUTH-11 completion, ENG R6 activation, and stopped successor
  projections for all three initiatives.
• Merge intent, Markdown links, stale wording, and diff checks passed.

Reviewer Results

All nine required internal tracks completed. No implementation blocker remains.
CI/security and senior engineering retain only the operational risk that any
intervening main merge or missing protected evidence invalidates recovery.

CodeRabbit's two comments were dispositioned as stale-context findings. The
external-review response records why the reviewed SHA is f3eab24e and why
signed PR #201 is a mandatory exact predecessor rather than broadened recovery
authority.

Human Review Focus

• Confirm PR docs(artifacts): reconcile submission bundle plan #197 then signed PR WS-AUTH-001-11: split project read hard cutover #201 are the only recovered predecessors.
• Confirm R6 is direct-next on main before merging.
• Confirm both recovered predecessors and the activation head have successful merge-bound
  agent-gates and test evidence.
• Confirm the policy and generated result contain no persistent exemption or
  automatic successor start.

Stop Conditions

Do not merge if main advances, required checks fail, the reviewed SHA changes
outside evidence-only files, or recovery would need broader authority.

[coderabbitai]

📝 Walkthrough

Walkthrough

This change adds schema-v6 loop-memory recovery for the ART PLAN2 sequence, tracking ART PLAN2 and AUTH-11 as ordered recovered merges before R6 activation. It updates validation, exemption preparation, policy fixtures, regression tests, recovery contracts, operational documentation, status records, and review evidence.

Changes

WS-ENG-007 recovery reconciliation

Layer / File(s)	Summary
Schema-v6 recovery policy and validation scripts/update_post_merge_memory.py, scripts/test_update_post_merge_memory.py, scripts/test_agent_gates.py, .agent-loop/policies/loop-memory-recovery.json	Recovery validation and exemption preparation support schema version 6 with exactly two ordered recovered merges, updated signed-basis checks, and regression coverage for valid and invalid sequences.
R6 recovery contract and activation .agent-loop/initiatives/WS-ENG-007-concurrent-pr-review-reconciliation/*, .agent-loop/merge-intents/WS-ENG-007-00R6.json, docs/operations_post_merge_memory.md	R6 contracts, activation metadata, status tracking, dependency ordering, and operational documentation define the ART PLAN2, AUTH-11, and R6 merge sequence and its explicit-start requirements.
Review evidence and recovery record .agent-loop/initiatives/WS-ENG-007-concurrent-pr-review-reconciliation/reviews/*, .agent-loop/REVIEW_LOG.md	Trust-bundle, internal-review, and recovery-log records capture reviewed revisions, validation results, merge constraints, and remaining evidence requirements.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Possibly related PRs

• Flow-Research/workstream#192: Earlier loop-memory recovery updates for the preceding schema-v5 recovery sequence.
• Flow-Research/workstream#190: Related recovery-policy validation and protected-check evidence handling.
• Flow-Research/workstream#189: Related schema-based recovery handling in the same recovery pipeline.

🚥 Pre-merge checks | ✅ 3 | ❌ 2

❌ Failed checks (2 warnings)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.
Description check	⚠️ Warning	It covers the intent and evidence, but misses most required template sections like Chunk, Signed Start Provenance, Scope Control, Commands Run, and CI checks.	Rewrite the description to follow the template and add the missing sections: chunk/intent, signed-start provenance, scope control, commands/results, test delta, external review, CI/gate integrity, and risks.

✅ Passed checks (3 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly matches the main change: recovering the unsigned ART planning merge.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/ws-eng-007-00r6-art-plan2-recovery

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[coderabbitai]

Actionable comments posted: 2

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In
@.agent-loop/initiatives/WS-ENG-007-concurrent-pr-review-reconciliation/reviews/WS-ENG-007-00R6-pr-trust-bundle.md:
- Around line 20-22: Rerun and record the review for the actual reviewed SHA
609be24d3b5a4825e9dd8f70f3f3f219d041b430, then update
.agent-loop/initiatives/WS-ENG-007-concurrent-pr-review-reconciliation/reviews/WS-ENG-007-00R6-pr-trust-bundle.md
lines 20-22 with that SHA and update
.agent-loop/initiatives/WS-ENG-007-concurrent-pr-review-reconciliation/reviews/WS-ENG-007-00R6-internal-review-evidence.md
lines 11-17 so reviewer evidence, commands, and results all reference the same
actual revision.

In `@scripts/update_post_merge_memory.py`:
- Around line 2310-2318: Restrict schema-v6 recovery in the recovered_merges
validation logic to exactly one authorized PR `#197` predecessor, preventing
two-merge chains from being accepted or included in reorderable plans. Update
.agent-loop/policies/loop-memory-recovery.json:7-19,
scripts/test_update_post_merge_memory.py:2144-2283,
scripts/test_agent_gates.py:2312-2326,
.agent-loop/initiatives/WS-ENG-007-concurrent-pr-review-reconciliation/chunks/WS-ENG-007-00R6-art-plan2-recovery.md:52-63,
CHUNK_MAP.md:10-17, STATUS.md:10-20,
docs/operations_post_merge_memory.md:319-336, the two WS-ENG-007-00R6 review
evidence files at their specified ranges, and
.agent-loop/REVIEW_LOG.md:2945-2955 to consistently document, test, and enforce
the one-predecessor policy; each sibling site requires corresponding alignment
with this change.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: c7979505-802e-4145-a9d9-7acfb8b6cf74

📥 Commits

Reviewing files that changed from the base of the PR and between f670b70 and 1917b6f.

📒 Files selected for processing (12)

• .agent-loop/REVIEW_LOG.md
• .agent-loop/initiatives/WS-ENG-007-concurrent-pr-review-reconciliation/CHUNK_MAP.md
• .agent-loop/initiatives/WS-ENG-007-concurrent-pr-review-reconciliation/STATUS.md
• .agent-loop/initiatives/WS-ENG-007-concurrent-pr-review-reconciliation/chunks/WS-ENG-007-00R6-art-plan2-recovery.md
• .agent-loop/initiatives/WS-ENG-007-concurrent-pr-review-reconciliation/reviews/WS-ENG-007-00R6-internal-review-evidence.md
• .agent-loop/initiatives/WS-ENG-007-concurrent-pr-review-reconciliation/reviews/WS-ENG-007-00R6-pr-trust-bundle.md
• .agent-loop/merge-intents/WS-ENG-007-00R6.json
• .agent-loop/policies/loop-memory-recovery.json
• docs/operations_post_merge_memory.md
• scripts/test_agent_gates.py
• scripts/test_update_post_merge_memory.py
• scripts/update_post_merge_memory.py