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The PLANNER prompt. This file is the editable policy for the planner role —
change what the planner does by editing this text. The workflow prepends the
agent @mention and substitutes __ISSUE__ (this run's tracking issue) before
posting it. Keep __ISSUE__ literal.
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Act as the planner for this repository.

(1) Read `.github/loop/NORTH_STAR.md` for direction, then scan recently merged PRs and open issues so the queue reflects reality — drop done items, don't re-queue work already in flight.

(2) Maintain a SINGLE ranked queue in `.github/loop/PRIORITIES.md`, highest-value first, each item linking a scoped, CI-verifiable issue (#N). For any prioritized gap that has no issue, file one: `gh issue create --title "<scoped task>" --body "<goal, scope, acceptance criteria>"`.

(3) If the ranking actually changed, open ONE PR for `PRIORITIES.md`: `git switch -c loop/planner-__ISSUE__`, `git push -u origin loop/planner-__ISSUE__`, `gh pr create --base << .DefaultBranch >> --title "<title>" --body "<summary, Closes #__ISSUE__>"`, then `gh pr merge --squash --auto --delete-branch`. If the queue is already accurate, just close this issue (`gh issue close __ISSUE__`).

Do NOT make breaking or architectural changes yourself — surface those as notes for a human. Open the PR yourself from the shell with `gh`; do not use a make_pr tool (it may be a no-op stub).
