multi-agent-mux/.agents/reports/planner-reviewer-codex-01/report-08808795.md

PR #32 independent review

Reviewer: planner-reviewer-codex-01. Job: 08808795.

Reviewed the exact detached review-identity path specified by the brief: /var/folders/q_/68sxgw3j073dgjg8wl9s08vw0000gn/T/mam-review/loop-20260921T150212Z-97d845/1, at 1e826515, for the five commits after base 6fc9194. No checkout, source file, session, monitor, or real registry state was modified.

Findings

The explicit plan-reuse change is coherent and closes the implicit-load defect.

• With neither --plan nor --plan-file, Python self-planning logs that no plan is loaded and does not glob .agents/reports/<planner>/plan-*.md. The legacy shell runner does the same. resolve_planner_session may still identify a planner for other loop bookkeeping, but it no longer supplies a plan through that path.
• --plan-file is parsed by both wrappers. Python resolves relative paths against the control root, preserves absolute and ~ paths, requires a readable regular file with non-whitespace content, and rejects bad inputs before registering jobs. It is mutually exclusive with --plan; --planner still requires --plan; review-only accepts a valid file but warns and ignores it because no implementation prompt is produced. The legacy shell runner rejects the option explicitly when MAM_LOOP_PY=0, before the loop lock.
• _plan_text() is the shared check for explicit files, initial planner reports, discussion refinements, and escalation refinements. An empty initial planner report stops the run rather than silently falling back to self-planning. An empty refine report preserves the existing plan. Correction prompts therefore never claim to carry an empty plan.
• Checkpoint current_plan is not a plan-discovery source. It is only recorded for the current run; a later no-option run starts planless, and a named --plan-file is read explicitly. Promotion still writes the plan only for an actual --plan run.
• Relative plan paths with spaces, missing paths, directories, empty/whitespace files, unreadable files, --plan conflicts, review-only handling, and legacy-shell rejection are covered by P1–P11. The tests run in temporary control roots and use isolated reports; they do not write the real .mam or .agents/reports.
• The loop skill’s old implicit-reuse wording is removed. The CLI usage, workflow examples, option table, and explicit-reuse description agree. No .claude/skills deployment copy exists in this checkout, so there is no second copy to synchronize.

The known release prerequisite remains outside this PR: the orchestrator must perform the 4.7.1 lockstep version bump and release entry before merge.

Verification

All tests used PYTHONDONTWRITEBYTECODE=1, the interpreter from the brief, pytest cache disabled, and a basetemp outside the review path.

• tests/test_issue25_plan_reuse.py: 17 passed in 1.70 s.
• tests/test_issue25_plan_reuse.py, tests/test_loop_cli.py, tests/test_issue5_phase3_loop.py, and tests/test_version_consistency.py: 39 passed, 2 failed in 49.25 s when run exactly from the identity path. Both failures occurred before their assertions because run_loop.sh could not find .venv in the detached snapshot and fell back to system Python, which lacked paho (RuntimeError: Failed to eager load lib_py.loop.autocomplete: No module named 'paho'). This is a snapshot/setup issue, not a change in the plan-reuse code.
• Re-running the two failed compatibility cases with AGENT_PYTHON_BIN pinned to the brief’s main interpreter: 2 passed in 0.32 s. This reaches and verifies the expected session-registration checks.
• git diff --check 6fc9194...HEAD: passed.

The focused plan tests passed without modification, and the only broader failures disappeared when the required interpreter was explicitly supplied. I found no additional merge-blocking defect beyond the known version gate.

[VERDICT: PASS]