Session Handoff [auto-2724]: Narrow pr_review.py wait's Exit 44 to Required Checks for #2724 #2726

Next steps, in priority order

1. Fix Narrow pr_review.py wait's Exit 44 to Required Checks Read From isRequired #2724: make scripts/pr_review.py wait take exit 44 (status=CHECKS_NOT_MERGEABLE) only where a stuck check is required, read from the isRequired field the full query already fetches on every rollup member, and the merge reads BLOCKED. Done looks like: a stuck optional check on a BLOCKED merge no longer exits 44, a stuck required one still does, the scripts/README.md paragraph and the code comment above the 44 arm state the isRequired reading instead of the call-cost rationale, and a test pins both cases. Drive the pull request to develop with Closes on promotion: #2724 in its body.

External blockers

None known at pick time.

Internal dependencies

None. The issue is self-contained in scripts/pr_review.py, its test module, and scripts/README.md.

State

• No branch, worktree, or pull request exists for this lane yet. Isolate per repo-worktree on feature/auto-2724, based on develop.
• Poll an Attested Head's Checks in pr_review.py wait #2722, which added isRequired to the full query, is merged to develop and not yet promoted to main.

The parked decision queue

Zero parked decisions on this lane.

What the last round did

Picked #2724 from the open backlog as the top-ranked auto-resolvable issue: a correctness defect in hub tooling that runs on every review wait, filed in review on #2722, with a determined outcome and no maintainer question open on it.

What not to repeat

Nothing yet.

New learnings

None yet.