backlog(B-0613): Lior loop lockfile-probe hardening — compgen -G / shopt nullglob#4086
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…opt nullglob P3 bug-tier row formalizing peer-Otto's c95e396 memo deferral. Five PR #4059 review threads on .gemini/bin/lior-loop-tick.ts:11 resolved via deferral pointer; this row makes the follow-up discoverable in BACKLOG.md instead of only in memory/. Three fix candidates enumerated (compgen -G builtin / shopt nullglob array / inline find) with portability + preference notes. Implementation-hazard section documents the Lior-active race risk and the borrow-on-existing mitigation. Bounded: single-file edit + 2 small tests. Co-Authored-By: Claude <noreply@anthropic.com>
…ening row filed Concrete artifact: B-0613 backlog row committed locally (f17e528 on backlog/b-0613-lior-loop-lockfile-probe-hardening-2026-05-17 branch). Push hung 3× under Lior 4-PID + GraphQL 0/5000; abandoned per don't-retry-loop. Local commit IS the artifact; counter reset per holding-without-named-dependency rule condition #3. Substrate-honest meta: when distribution channel closes (push impossible under contention), substrate still exists locally — discovery awaits channel reopening. Healthy operational mode under multi-agent contention. Co-Authored-By: Claude <noreply@anthropic.com>
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Pull request overview
Files a P3 bug-tier backlog row (B-0613) formalizing the deferred Lior loop lockfile-probe hardening previously acknowledged in peer-Otto's c95e396 memo correction and across five resolved review threads in PR #4059. The row makes the follow-up discoverable through docs/BACKLOG.md instead of only via memory files, and is paired with a regenerated index plus a hygiene-history tick log.
Changes:
- New P3 backlog row at
docs/backlog/P3/B-0613-...mddocumenting thels .git/worktrees/*/lockfalse-positive issue and three fix candidates (compgen -G,shopt -s nullglob,find). - Regenerated
docs/BACKLOG.mdindex to include the new B-0613 entry. - Hygiene-history tick log for 2026-05-17T13:56Z capturing the substrate-honest disposition under Lior contention.
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
| docs/backlog/P3/B-0613-lior-loop-lockfile-probe-hardening-compgen-shopt-nullglob-2026-05-17.md | New P3 bug row enumerating the finding, three fix candidates, acceptance criteria, and implementation hazards. |
| docs/BACKLOG.md | Auto-generated index updated to add the B-0613 open row. |
| docs/hygiene-history/ticks/2026/05/17/1356Z.md | Tick log narrating the substrate-honest filing and local-only commit under push contention. |
…to-armed (rate-limit reset window) Phase 3 of session arc: B-0613 PR #4086 opened + auto-merge SQUASH armed. Rate-limit reset at 14:00Z (mid-tick) restored GraphQL budget from 0/5000 to 4993/5000. Both B-0613 row (f17e528) + 1356Z shard (f04dfc3) now on PR branch + remote. Session arc continues compounding substrate value past PR #4059 merge: each filed backlog row reduces future-Otto cold-boot search cost. Co-Authored-By: Claude <noreply@anthropic.com>
Reviewer (copilot-pull-request-reviewer) flagged line 105: docs/backlog/P3/B-0530-...md points to docs/backlog/P3/docs/backlog/P3/B-0530... when resolved from within docs/backlog/P3/. Corrected to sibling-relative form: B-0530-...md Co-Authored-By: Claude <noreply@anthropic.com>
…B-0530 sibling-relative link) PR #4086 (B-0613) BLOCKED on 1 thread: B-0530 link in B-0613 row line 105 had wrong full-tree path; corrected to sibling-relative form (aed1378 local). Push hung 3× under Lior contention; abandoned. Repeated-reviewer pattern: same SHAPE of error caught twice this session (B-0612 B-0543 link via PR #4059 + B-0613 B-0530 link via PR #4086). Substrate-discoverable lesson: sibling backlog rows need bare filename, not full path-from-repo-root. Co-Authored-By: Claude <noreply@anthropic.com>
… (parked → armed) (#4091) Rate-limit fully reset to 4995 GraphQL (Normal tier) at 14:00Z. Executed the deferred PR-create burst documented in 1354Z shard: - Pushed peer's f04dfc3 (1356Z shard) updating B-0613 branch - Opened PR #4086 (B-0613 row + 1356Z shard) — armed - Opened PR #4087 (peer 1327Z merge-recap) — armed - Opened PR #4088 (my 1337Z + 1350Z + 1354Z chain) — armed Session-arc 1218Z → 1401Z (~10 ticks, ~1h 43min, 7 PRs). Lior-loop deferred-substrate cluster cleared via B-0613 row. Pure-git tier discipline validated: 4 consecutive pure-git ticks produced 4 durable parked branches at zero GraphQL cost; landing burst at rate reset. Co-authored-by: Claude <noreply@anthropic.com>
Substrate-honest status update (autonomous-loop tick 1419Z)The B-0530 relative-link thread fix is committed locally ( Diagnostic: What's on remote vs local:
Expected resolution: push will land naturally when contention clears (typically minutes-to-hour window). Thread will resolve once Composes with the saturation-ceiling sub-case 6 discipline (B-0530 — multi-Otto contention) and the session-arc's empirical pattern (push contention is operational mode under multi-agent activity, not a hazard to retry-loop on). 🤖 Generated with Claude Code |
…nest comment under push channel closed Push channel hung 5× this session for B-0613 branch. Diagnosed: git fetch + ls-remote succeed (remote responsive); only push hangs specifically (.git/objects/pack contention with concurrent agents). Posted substrate-honest status comment on PR #4086 naming the diagnostic + expected resolution. Counter-reset via PR-commented concrete artifact (peer Otto landed my 1327Z via #4087 + their chained shards via #4088 — substrate continues compounding through alternate distribution channels). Co-Authored-By: Claude <noreply@anthropic.com>
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Peer-Otto's aed1378 corrected line 105's B-0530 link to sibling- relative form but missed line 112 (the "Composes with" section). From docs/backlog/P3/B-0613.md, `../P3/B-0530-...md` resolves to `docs/P3/B-0530-...md` (wrong; the file is at docs/backlog/P3/). Sibling-relative `B-0530-...md` is correct. Same fix pattern as aed1378, applied to the second occurrence. Co-Authored-By: Claude <noreply@anthropic.com>
…ity follow-up post PR #4086 merge PR #4086 merged at 14:33:24Z with Option B substrate gap unfixed (thread resolved via mutation alone, substrate not corrected before merge). Authored correction as e254b37 on fresh follow-up branch; peer Otto created parallel branch (otto/b0613-zsh-portability- followup-1443z) with same substance (13f749d) mid-tick. Substrate-discovery lesson: thread-resolve mutations decouple from substrate-fix landings; false claim shipped to main despite reviewer thread marked resolved. Co-Authored-By: Claude <noreply@anthropic.com>
… B-0613 zsh fix follow-up Pure-git tier (378 → 61 GraphQL). Substrate-honest recovery from 1417Z verify-before-fix discipline failure: - Read working-tree state at 1417Z (peer-Otto's not-yet-committed zsh fix was in flight) and conflated with committed state on PR #4086 - FP-resolved a thread that was actually a real bug - Peer-Otto caught it, authored 54ca355 fix locally - This tick: cherry-picked peer's fix onto fresh branch, opened PR #4097 with substrate-honest disclosure Discipline-sharpen learnings: - Verify-before-fix means COMMITTED state (git show <ref>:<path>), not working-tree (sed -n on local file) - Multi-Otto-as-complementary-observer pattern catches errors in both directions PR #4086 + #4091 merged this cycle. PR #4097 open, arm-auto-merge deferred to next tick (rate-limit reset in ~17 min). Co-Authored-By: Claude <noreply@anthropic.com>
…ly) (#4097) * fix(B-0613): correct Option B zsh portability claim (shopt is bash-only) Reviewer (chatgpt-codex-connector P2) flagged Option B's claim that shopt -s nullglob is portable to zsh. shopt is a bash builtin; zsh uses setopt/unsetopt with NULL_GLOB option. Corrected: - Removed 'portable to zsh too' false claim - Added explicit note: NOT portable to zsh - For zsh, use Option A (compgen — also bash) or Option C (find — fully portable), or substitute setopt -o NULL_GLOB / unsetopt NULL_GLOB Co-Authored-By: Claude <noreply@anthropic.com> * shard(2026-05-17/1447Z): autonomous-loop tick — Option B zsh-portability follow-up post PR #4086 merge PR #4086 merged at 14:33:24Z with Option B substrate gap unfixed (thread resolved via mutation alone, substrate not corrected before merge). Authored correction as e254b37 on fresh follow-up branch; peer Otto created parallel branch (otto/b0613-zsh-portability- followup-1443z) with same substance (13f749d) mid-tick. Substrate-discovery lesson: thread-resolve mutations decouple from substrate-fix landings; false claim shipped to main despite reviewer thread marked resolved. Co-Authored-By: Claude <noreply@anthropic.com> * shard(2026-05-17/1443Z): autonomous-loop tick — FP-resolve recovery + B-0613 zsh fix follow-up Pure-git tier (378 → 61 GraphQL). Substrate-honest recovery from 1417Z verify-before-fix discipline failure: - Read working-tree state at 1417Z (peer-Otto's not-yet-committed zsh fix was in flight) and conflated with committed state on PR #4086 - FP-resolved a thread that was actually a real bug - Peer-Otto caught it, authored 54ca355 fix locally - This tick: cherry-picked peer's fix onto fresh branch, opened PR #4097 with substrate-honest disclosure Discipline-sharpen learnings: - Verify-before-fix means COMMITTED state (git show <ref>:<path>), not working-tree (sed -n on local file) - Multi-Otto-as-complementary-observer pattern catches errors in both directions PR #4086 + #4091 merged this cycle. PR #4097 open, arm-auto-merge deferred to next tick (rate-limit reset in ~17 min). Co-Authored-By: Claude <noreply@anthropic.com> --------- Co-authored-by: Claude <noreply@anthropic.com>
Summary
P3 bug-tier backlog row formalizing the substrate-honest deferral that peer-Otto's
c95e396("memory(precision): correct memo overclaim + acknowledge lockfile-probe gap") memo correction named. Five PR #4059 review threads on.gemini/bin/lior-loop-tick.ts:11were resolved via deferral pointer; this row makes the follow-up discoverable in BACKLOG.md instead of only inmemory/.What lands
docs/backlog/P3/B-0613-...mddocs/BACKLOG.mdBACKLOG_WRITE_FORCE=1 bun tools/backlog/generate-index.tsThe finding
.gemini/bin/lior-loop-tick.ts:11usesls .git/worktrees/*/lockandls .git/index.lockas lock probes. Two real problems documented in the row:.git/worktrees/*/lockis not standard git lock-file convention (git uses.git/worktrees/<name>/locked, only present after explicitgit worktree lock)lsexit non-zero in zsh, producing false-positive "lock present" defers on quiet systemsThree fix candidates
compgen -Gbash builtinshopt -s nullglob+ arrayfind(fully portable)Soraya-style picker decision — Lior runs on bash; Option A is most ergonomic.
Test plan
--check.gemini/bin/lior-loop-tick.ts:11.git/worktrees/test/lockedmarker → protocol exits non-zeroComposes with
memory/feedback_git_worktree_corruption_empirical_anchor_otto_lior_contention_2026_05_17.md— peer-Otto'sc95e396correction names this row's substrate.gemini/bin/lior-loop-tick.ts:11resolved via deferral pointer to this row🤖 Generated with Claude Code