multi-agent-mux/.agents/reports/reviewer-agy-01/report-41f07cde.md

Pre-Merge Independent Review Report: PR #32 (fix/issue-25)

• Job ID: 41f07cde
• Target Agent: agy (Session: herdr:reviewer-agy-01)
• Role: Reviewer
• Target Worktree Context:
  • Loop ID: loop-20260921T150212Z-97d845
  • Base Commit: 6fc9194f896eb2e13e123b8ebe7a9089b629764d (v4.7.0)
  • Head Commit: 1e826515cc2a07ea1f8da0ff1259e1ea4dde86fd
  • Tree SHA: 4fd82ad1c2682d12c3f5114818f97291af28a032
  • Verification Path: /var/folders/q_/68sxgw3j073dgjg8wl9s08vw0000gn/T/mam-review/loop-20260921T150212Z-97d845/1

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1. Executive Summary

PR #32 resolves Issue #25 ("승격된 계획서 재사용을 --plan-file 로만 허용 — 암묵적 자동 로드 제거") across 5 commits and 4 files (+486 / −31):

• 1e82651 fix(issue-25): a relative --plan-file is taken against the control root, as its usage line says
• 5fa5923 docs(issue-25): the loop skill documents --plan-file and the empty-report handling
• a334083 test(issue-25): plan reuse is explicit only and empty plan reports are not silent (P1-P11)
• e551e3b fix(issue-25): one plan-text check for every load; an empty planner report stops the loop, an empty refine keeps the plan
• a28711c fix(issue-25): reuse a promoted plan only with --plan-file; drop the implicit newest-plan load

All checklist criteria have been verified in the isolated verification path. All 17 new tests in test_issue25_plan_reuse.py and all 115 baseline regression tests passed with zero regressions.

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2. Detailed Verification Against Checklist Items

(1) Removal of Implicit Plan Loading

• Python Runner (lib_py/loop/runner.py):
  • Removed import glob and the directory scan glob.glob(str(self.workspace_root / ".agents" / "reports" / planner_session / "plan-*.md")).
  • In Phase 1 Self-Planning mode, if --plan-file was not supplied, self.current_plan remains empty and the runner logs: "No plan loaded; the Creator plans by itself (reuse one with --plan-file <path>).".
• Legacy Shell Runner (scripts/run_loop.sh):
  • Removed EXISTING_PLAN_FILE=$(ls -t ".agents/reports/$PLANNER_SESSION"/plan-*.md 2>/dev/null | head -n 1 || true).
  • In Self-Planning mode, logs "No plan loaded; the Creator plans by itself.".
• Parity & Search Check:
  • Test test_p8_neither_loop_implementation_globs_for_a_plan_any_more confirms the string pattern plan-*.md does not appear anywhere in runner.py or run_loop.sh.
  • Automatic planner resolution (resolve_planner_session) is not called or consulted to retrieve stored plans in Phase 1 self-planning mode.

(2) --plan-file <path> CLI Option Semantics

• Control Root Resolution:
  • Relative paths are anchored against self.workspace_root via (self.workspace_root / Path(self.plan_file).expanduser()).resolve(). This guarantees identical path resolution whether the command is run from the repository root, a subdirectory, or an isolated worktree (test_p3c).
  • Absolute paths and user home expansion (~) remain untouched and work as expected (test_p3d).
• Fail-Closed Early Validation:
  • Evaluated in parse_args() before any agent delegation or job submission occurs (test_p3, test_p3b).
  • If the path is non-existent, a directory, unreadable, or contains whitespace-only text, the runner logs an error naming the resolved path and immediately exits with rc=1.
• Mutual Exclusion & Option Combinations:
  • Combining --plan-file with --plan exits 1 with a clear mutual exclusion error (test_p4).
  • Specifying --plan-file without an argument exits 1 (test_p4).
  • When combined with --review-only, the runner logs a warning and ignores the plan (self.current_plan = ""), because Phase 2 implementation is skipped (test_p5, test_p5b).
• Legacy Shell Rejection:
  • When invoked with MAM_LOOP_PY=0, run_loop.sh explicitly detects --plan-file and terminates with code 1 before the loop marker/guard is created (test_p7b).

(3) Centralized Plan Text Validation (e551e3b)

• Shared Validation Method:
  • LoopRunner._plan_text(path: Path) -> Optional[str] enforces:
    1. Regular file check (path.is_file()).
    2. Safe decoding with error replacement (read_text(encoding="utf-8", errors="replace")).
    3. Stripped text check (text if text.strip() else None).
• Initial Plan Failure:
  • In --plan mode, if the initial planner report is empty or whitespace-only, the runner logs the planner's report has no plan text: <path> and exits with code 1 (test_p9). This eliminates the regression where an empty plan silently demoted the run to self-planning.
• Refinement Retention (Debate & Review Escalation):
  • In Phase 1 interactive debate (--plan-talk) and Phase 3 review escalation ([ESCALATE: PLANNER]), an empty refinement report logs a warning and preserves the previously valid plan (test_p10, test_p11).
  • This prevents prompt corruption in correction_prompt = f"갱신된 다음 계획서에 입각하여 ... 계획서:\n{self.current_plan}".

(4) Checkpoint Integrity

• LoopRunner persists current_plan to .mam/loop-checkpoint.json for diagnostic and monitoring visibility during active loops.
• LoopRunner never reads .mam/loop-checkpoint.json at startup to populate self.current_plan. self.current_plan is always initialized cleanly (self.current_plan = "").
• Existing checkpoint files in the workspace (such as unrelated historical plan text from prior issues) cannot contaminate new loop runs.

(5) Baseline Behavior & Creator Prompts

• In self-planning mode without --plan-file, the initial Creator prompt retains the exact contract: "계획서가 존재하지 않으므로, 작업자(Creator)의 판단하에 스스로 구현 계획 및 설계를 수립한 뒤, 이를 바탕으로 코드를 구현하고 다음 작업 목표를 완성해주세요. 작업 목표: {self.task}".
• With --plan-file <path>, the prompt receives: "이미 수립된 다음 계획서에 입각하여 작업자의 판단하에 코드를 구현하고 작업 목표를 완성해주세요. 계획서:\n{self.current_plan}\n\n작업 목표: {self.task}".
• Subsequent review corrective rounds strictly provide reviewer feedback without repeating the initial plan (test_p2).
• Promotion of newly planned tasks via --plan to .agents/reports/<planner>/plan-<id>.md remains operational and protected (test_p6).

(6) Test Suite Execution & Isolation (P1–P11)

• All 17 test cases in tests/test_issue25_plan_reuse.py operate strictly within isolated tmp_path fixtures with stubbed delegations.
• Real .mam/jobs, live daemon processes, and global agent sessions remain completely untouched.
• Execution timing: 17 tests passed in 2.02 seconds.

(7) Documentation Integrity

• .agents/skills/multi-agent-mux-loop/SKILL.md was thoroughly updated:
  • Completely purged the stale statement ("기존에 승격된 계획서가 있다면 이를 로드").
  • Updated Sequence Diagram and Phase 1 documentation to reflect explicit --plan-file reuse.
  • Added a dedicated section: ### 계획서가 비어 있을 때 (Empty plan reports).
  • Updated CLI Option mapping table and Workflow examples.
• No dangling references to the old implicit loading mechanism exist across the repository.

(8) Versioning & Merge Readiness

• Version lockstep bump to v4.7.1 is reserved for the orchestrator release commit in accordance with release procedures.
• Formatting and git diff checks (git diff 6fc9194...HEAD --check) reported 0 issues.
• No merge blockers, regression risks, or side-effects detected.

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3. Test Execution Summary

Test Suite	Result	Duration	Notes
tests/test_issue25_plan_reuse.py	17 / 17 PASS	2.02s	P1–P11 test matrix covering all reuse/empty-plan conditions
tests/test_loop_cli.py	9 / 9 PASS	38.97s	CLI interface and argument validation regressions
tests/test_issue5_phase2a_loop.py	91 / 91 PASS	2.91s	Core loop state machine, dispatching, and verdict handling
tests/test_issue5_phase3_loop.py	12 / 12 PASS	0.54s	Runner orchestration, timeouts, and signal handling
tests/test_version_consistency.py	3 / 3 PASS	0.21s	Version consistency checks
git diff 6fc9194...HEAD --check	0 errors	0.05s	Zero trailing whitespace / formatting errors

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[VERDICT: PASS]