Issue #21 items 4, 5, 7 (worktree helpers, review identity, acceptance A1-A8), #20 test isolation, #27 .gitignore managed block, #28 host portability. VERSIONS.md carries the entry; the eight review reports of PR #29 (two rounds plus the codex re-review) are archived under .agents/reports/<session>/. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01VCgu9Fa9iT7TbJUSzdq4Ff