[Alex1990]

What / why

D26, the review path. A pull_request.synchronize on a loop PR was skipped whenever the
task was not claimable, and pr-review leaves it in exactly such a state:

• rejected — request-changes (chore(loop): mine the uploaded agent sessions and feed them to retro #82's verdict);
• waiting-merge — approved, awaiting a human.

So a revised loop PR could never be reviewed again: every later push logged
skip: task #82 not claimable (status=rejected). That is the loop's only path back
after its own review, and the reason #82's fix commit could not reach a reviewer
without a new task.

Change

• shared/route.mjs: reviewReopenOf({ eventName, action, event }, status) — returns
  the PR number only for pull_request.synchronize with status rejected or
  waiting-merge.
• entry.mjs doRun: before the claim check, that event moves the task to ready
  (timeline reopened-for-review) so the routed pr-review actually runs.
• scripts/loop/README.md: D26 closed for the review path; its second face (a PR task
  triaged into waiting-human) is split out as D38 — still open, because reopening it
  needs a deliberate human act on the PR, not another claimability exception (D29).

Proof

rejected          82          <- reopen
waiting-merge     82          <- reopen
waiting-human     null        <- inbox guard unchanged (D29)
ready             null        <- already claimable
opened event      null        <- handled by the existing route
issue labeled     null
route: {"action":"run","taskId":82,"kind":"pr","stage":"pr-review","loopTask":77,"reason":"loop PR synchronize"}

End-to-end proof: after this lands, pushing the miner fixes to loop/77-session-mining
must log review reopen: task #82 rejected → ready, then start stage=pr-review.

Risk

Host scripts only. The widening is bounded to two terminal states on one event; bot
pushes do not raise synchronize runs at all (GITHUB_TOKEN events are suppressed), so
this cannot make a PR re-review itself in a loop.

[github-actions]

Coverage

Metric	%	Covered / Total
Lines	91.73%	1121/1222
Statements	90.42%	1209/1337
Functions	92.76%	218/235
Branches	76.97%	575/747