shard(tick): 2026Z — BACKLOG.md generated-index drift cleanup (B-0517/B-0518/B-0519)#3227
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…/B-0518/B-0519) Tick output: - PR #3226 (chore(backlog) regen) — fixes the non-required `check docs/BACKLOG.md generated-index drift` warning that #3221 surfaced. Three on-disk rows (B-0517/B-0518/B-0519) were missing from the auto-generated index. Pure regen; no per-row file changes. - This shard. Prior-tick PRs: - #3221 (chore(b-0502) launchd plist) — MERGED as eb81404. - #3222 (shard 2010Z) — still wait-ci, autoMerge armed. Branch-state contamination this tick — 2 incidents, both worked around: - After my push, gh pr create said "not on any branch" — HEAD detached at origin/main (parallel Otto's checkout). Fixed: re-checkout my branch. - Second gh pr create: HEAD now on fix/b-0518-sharpen-... (different Otto's branch). Fixed: gh pr create --head <my-branch> explicit flag. New substrate-honest defenses for multi-Otto-one-checkout topology: - git branch --show-current immediately before git commit (primary catch) - gh pr create --head <branch> explicit flag (prevents poisoned current-branch) Cron sentinel 12fb713e armed; recurring. Co-Authored-By: Claude <noreply@anthropic.com>
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Pull request overview
Tick shard file documenting the 2026-05-14T20:26Z autonomous-loop tick. Records the BACKLOG.md index-drift cleanup landed via #3226 and catalogs two new multi-Otto branch-state contamination incidents with their workarounds.
Changes:
- Adds a new tick-history file under
docs/hygiene-history/ticks/2026/05/14/per per-tick discipline - Documents the BACKLOG.md drift investigation that surfaced B-0517/B-0518/B-0519 missing from the generated index
- Captures two new branch-contamination patterns and the
gh pr create --headdefense
This was referenced May 14, 2026
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…-boot substrate) (#3233) Tick output: - PR #3232 (chore(rule) extend zeta-expected-branch.md): promotes the two primary defenses from B-0519 RCA (grep-discoverable backlog row) to .claude/rules/ (auto-loaded at cold-boot). Plus field-test caveat on env-var-hook reliability. Plus composite operator-discipline snippet. Auto-merge armed. - This shard. Prior-tick PRs: 3 merged this batch. - #3222 (shard 2010Z) MERGED as 82edec5 - #3227 (shard 2026Z) MERGED as 8b59343 - #3228 (B-0519 update) MERGED as 36fbe4c - #3231 (shard 2030Z) wait-ci, autoMerge armed Composite-guard used + survived this tick for substantive PR + this shard: test "$(git branch --show-current)" = "<expected>" && git commit gh pr create --head <my-branch> --base main Cron sentinel 12fb713e armed; recurring. Co-authored-by: Claude <noreply@anthropic.com>
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…6 defenses) (#3231) * shard(tick): 2030Z — B-0519 RCA additive update (Pattern 5 + Pattern 6 defenses) Tick output: - PR #3228 (chore(b-0519) additive update): adds Pattern 5 + Pattern 6 contamination patterns + new cheap defenses (git branch --show-current before commit + gh pr create --head explicit ref) + caveat on ZETA_EXPECTED_BRANCH env-var hook reliability. Pure additive update; no per-row metadata changes. Auto-merge armed. - This shard. Prior-tick PRs status: - #3226 (BACKLOG.md regen) — MERGED as fe8a845. - #3227 (shard 2026Z) — wait-ci, autoMerge armed. - #3222 (shard 2010Z) — wait-ci, autoMerge armed. Observed but not yet RCA'd: working-tree files from a different Otto's branch surviving `git checkout -f origin/main`. Caught + corrected via git checkout origin/main -- <leaked-file>. Repro needed before RCA. Both new defenses survived field-test this tick + last: - git branch --show-current immediately before git commit - gh pr create --head <branch> explicit ref Cron sentinel 12fb713e armed; recurring. Co-Authored-By: Claude <noreply@anthropic.com> * fix(shard-2030Z): add blank line before list (MD032 markdownlint) Co-Authored-By: Claude <noreply@anthropic.com> * fix(shard-2030Z): reflow line to avoid leading '+' triggering MD032 The soft-wrap broke at '+ 2026Z + 2010Z).' causing markdownlint to treat it as a list item. Reflow the paragraph so no line starts with '+'. Co-Authored-By: Claude <noreply@anthropic.com> * fix(shard): clarify 2030Z session tally heading — 2 merged + 3 wait-ci Copilot reviewer noted the "Three landing tally" heading was ambiguous: only 2 PRs were merged; the other 3 were still wait-ci. Renames the heading to "Session PR tally (2 merged, 3 wait-ci)" so future-Otto session archaeology reads unambiguously. Co-Authored-By: Claude <noreply@anthropic.com> --------- Co-authored-by: Claude <noreply@anthropic.com>
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Summary
Tick 2026-05-14T20:26Z shard. Substantive work in #3226 (BACKLOG.md regen — closes the drift warning surfaced by #3221).
What landed
docs/BACKLOG.mdadding B-0517/B-0518/B-0519 to the auto-generated index. Pure regen; no per-row file changes.Prior-tick PRs status
eb81404. Closes B-0441 AC Round 26 — rename tail, §18 memory clarification, three dispatches #2.Branch-state contamination — 2 new incidents this tick
Multi-Otto-one-checkout topology produced two more contamination patterns:
git pushandgh pr create: HEAD detached atorigin/main(parallel Otto's checkout). Worked around with re-checkout.gh pr create: HEAD now onfix/b-0518-sharpen-...(a different Otto's branch). Worked around withgh pr create --head <my-branch>explicit flag.New defenses for future-Otto
git branch --show-currentimmediately beforegit commit— primary catch for wrong-branch commits; survived this tick.gh pr create --head <my-branch>— explicit head ref prevents implicit current-branch from being poisoned by parallel checkouts.The env-var-based
ZETA_EXPECTED_BRANCHhook remains defense-in-depth only (env vars don't persist reliably across Bash-tool calls).Test plan
git branch --show-currentconfirmed before commit (correct branch)gh pr create --headexplicit ref🤖 Generated with Claude Code
Co-Authored-By: Claude noreply@anthropic.com