Session Handoff [engineering]: #2839 and #2838 Released as 2.0.974, #2843 and #2830 Next #2855

Next steps, in priority order

1. Read the Remaining Sentence-Length Layouts Left by the Six-Layout Fix #2843, the sentence-length layouts left past the edit budget on Read the Six Layouts the Sentence-Length Check Misread #2846. A docstring body indented deeper than its quotes, a non-prose line inside an indented comment run, /* */ continuation indent, Google Note:/Warning:/See Also:/Todo: bodies, the blank-comment-line gap outside Python, and the NumPy head-versus-prose word-count heuristic (a comment on the issue adds the concrete case Copilot raised on Promote the Integration-Id Required-Check Match and Six Sentence-Length Layouts to Main #2847). Done means each is handled with a constructed test that fails with its fix reverted, or ruled out on the issue with the reason.
2. Make the Narrowed-Scan Diff-Floor Test Independent of the Working Directory #2830, the diff-floor test that fails on a clean develop from some working directories. CI passes it. Done means the test passes from any working directory, proven by running it from at least two.

#1814 (skill files hard-wrap) is still open and is left to the unattended loop's picker.

External blockers

• Nothing in the next steps waits on the maintainer.
• CodeRabbit still posts only its low-star notice here. Copilot plus the attested local pass covered this round.

Internal dependencies

• None. Read the Remaining Sentence-Length Layouts Left by the Six-Layout Fix #2843 is .github/actions/prose-gate/prose_lint.py and tests/test_prose_lint.py, and Make the Narrowed-Scan Diff-Floor Test Independent of the Working Directory #2830 is a test of its own, so they can run as parallel lanes. Confirm Make the Narrowed-Scan Diff-Floor Test Independent of the Working Directory #2830's test file is not tests/test_prose_lint.py before running them side by side.

State

• Honor a Required Check's Integration Id in the Attested Wait Hold #2842 and Read the Six Layouts the Sentence-Length Check Misread #2846 merged to develop, Promote the Integration-Id Required-Check Match and Six Sentence-Length Layouts to Main #2847 promoted them to main, and it was released as 2.0.974. Re-derive both.
• The primary checkout is on develop, fast-forwarded. Both lane worktrees, their local and remote branches, and the detached skills-refresh worktree are removed.
• The installed Skills snapshot reads current at the promoted main, and the host-safety kit reads CURRENT.
• Other tracks' open handoffs are untouched: Session Handoff [windows]: #2578 Landed for #694, Closing Through Promotion #2580, #1171 Next #2581 (windows), Session Handoff [host-instructions]: Hardening Rule and Merge Guard Released as 2.0.867 and 2.0.868, #2499 Docstring Next #2514 (host-instructions), Session Handoff [default]: Four Follow-Ups Landed and Released as 2.0.826, Downstream Adoption Next #2361 (default), Session Handoff [python-contract]: Escaped and Folded python-directories Values Refused, Released as 2.0.738 #2014 (python-contract).

The parked decision queue

Zero open decision issues.

What the last round did

• pr_review.py wait Matches a Required Check by Name Alone, Ignoring the Rule's integration_id #2839 landed as Honor a Required Check's Integration Id in the Attested Wait Hold #2842. The attested-wait hold matches a ruleset entry's integration_id: a bound entry is met only by a same-name CheckRun whose app id equals it, so a commit status or another app's check never meets it. The CHECKS_PENDING message names the unmet required contexts. Copilot's request to use fullDatabaseId was declined, since App has no such field.
• Sentence-length comment and docstring readers miss four layouts #2838 landed as Read the Six Layouts the Sentence-Length Check Misread #2846. Six layouts the sentence-length check misread now read correctly, through one shared list-marker strip and AST docstring boundaries. Filed Read the Remaining Sentence-Length Layouts Left by the Six-Layout Fix #2843 for what was left.
• Both ran as parallel standard lanes from one shared brief plus a per-lane design ruling, then one promotion, Promote the Integration-Id Required-Check Match and Six Sentence-Length Layouts to Main #2847. Its one Copilot finding (a short NumPy line at the entry indent dropped as a head) was deferred to Read the Remaining Sentence-Length Layouts Left by the Six-Layout Fix #2843 with a probe showing a numpydoc-shaped docstring is counted.

What not to repeat

• Lane 2839's final head was not re-reviewed locally. Its local pass was recorded before its four fixes. The promotion's review covered it, but a lane brief should say to re-run the pass after a fix round that changes code.
• Lane briefs named only the lint commands by guess. The hub's tests run as python3 -m unittest discover -s tests, which CI's test-pull-request.yml runs, not pytest. State that in the brief from the start.
• Carried forward, still unchecked: lane 2430 once saw pr_review.py wait return at once while only a Windows unit-test check was pending. Check whether Hold an Attested Wait Until the Base Branch's Required Checks Register #2837's required-check hold covers that case before filing it.

New learnings

• Nothing new that is durable. The entries above are specific to this round's attempts.