--- name: pr-sweep description: > Sweep open (or listed) PRs with up to 100 parallel agents: security-scan outside contributors, rebase onto main when behind (push --force-with-lease), approve pending first-time-contributor CI when relevant, optionally rebase in-house PRs, and report who should review. Supports full, changed-only, behind-only, and conflict-only scopes for cheap daily runs. Use when the user runs /pr-sweep (or /pr-inbound-sweep), or asks to "sweep PRs", "sweep inbound PRs", "security-check outside PRs", "rebase outsider PRs", "rebase our PRs", "approve waiting CI on PRs", "daily PR sweep", or "prep external PRs for review". --- # PR Sweep Prep PRs for review. Fan out one subagent per PR (cap 100). Default is **dry-run** (report only). Mutating steps require `--apply` (or the user saying "apply" / "go ahead"). ## Args | Invocation | Behavior | | ---------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------- | | `/pr-sweep` | All open non-draft PRs (full audit) | | `/pr-sweep 12 34 56` | Only those PR numbers | | `/pr-sweep --apply` | Full set, then rebase **and push** (`--force-with-lease`) | | `/pr-sweep --apply 12 34` | Rebase **and push** listed PRs only | | `/pr-sweep --outside-only` | Action target = outside authors only (default for mutations) | | `/pr-sweep --include-in-house` | Also rebase/update **in-house** branches (still never merge) | | `/pr-sweep --behind` | Only PRs behind base / BEHIND / not up to date | | `/pr-sweep --conflicts` | Only CONFLICTING / DIRTY / dirty merge state | | `/pr-sweep --changed` | Only PRs changed since last snapshot (or `updatedAt` within 24h if no snapshot) | | `/pr-sweep --daily` | Recommended daily recipe: `--changed` ∪ `--behind` ∪ `--conflicts` ∪ new outside PRs; security-scan new outside; lighter pass on the rest | | `/pr-sweep --apply --daily --include-in-house` | Daily apply: prep outside + rebase ours when behind/conflicting | Combine freely: `--apply --daily --include-in-house`. Explicit PR numbers always win over filters. ## Modes - **dry-run (default):** fetch, classify, security-scan, decide relevance / rebase need / CI need / assign recommendation. **No** push, **no** CI approve, **no** comments. - **apply:** after dry-run logic, **rebase + `git push --force-with-lease` + CI approve** for PRs that pass security and are marked actionable, **in the same turn**. `--apply` on the invocation is consent — do not wait for a second yes. Still **never merge** a PR and **never comment** on a PR. A local rebase with no push is a **failed** apply. Record results in `SWEEP-*.md` only. ## Daily routine (recommended) ### Option A — Grok `/loop` (same machine, session-scoped, expires ~7d) ```text /loop 1d /pr-sweep --apply --daily --include-in-house ``` Or dry-run every morning and apply only when you say go: ```text /loop 1d /pr-sweep --daily --include-in-house ``` `/loop` intervals: `Nm` / `Nh` / `Nd` (min 60s). Cancel with `scheduler_list` → `scheduler_delete `. ### Option B — Manual weekday ```text /pr-sweep --daily --include-in-house # dry-run first /pr-sweep --apply --daily --include-in-house # after skimming plan ``` ### What `--daily` processes Build the **action set** as the union of: 1. **New outside PRs** — open outside non-draft not present in the previous snapshot (full security scan). 2. **Changed** — `updatedAt` newer than last snapshot `sweptAt`, or head SHA changed vs snapshot. 3. **Behind** — `mergeStateStatus` is `BEHIND` or not up to date with default branch. 4. **Conflicts** — `mergeable == CONFLICTING` or `mergeStateStatus` in `DIRTY`, `BLOCKED` with dirty indicators. 5. **CI waiting approval** — outside PRs with first-time-contributor gate (cheap; no full diff if already in snapshot as `security: clean`). Skip from action set (still note counts in report): - Drafts (unless listed explicitly) - `security: alert` from prior snapshot until human clears - PRs marked `blocked-conflicts` in the last 24h with **no** `updatedAt` change (avoid thrashing) - Bot version/release PRs (`changeset-release/*`, pure Renovate) unless `--include-bots` Cost target: daily should touch **tens**, not all open history. Full `/pr-sweep` remains the weekly deep scan. ### Snapshot (enables `--changed` / `--daily`) Path: `.agent/pr-sweep/snapshot.json` ```json { "repo": "TanStack/ai", "sweptAt": "2026-08-10T18:00:00Z", "defaultBranch": "main", "defaultBranchSha": "abc…", "prs": { "1069": { "author": "mikemikimike", "outside": true, "headSha": "def…", "updatedAt": "2026-08-10T04:01:40Z", "security": "clean", "mergeable": "MERGEABLE", "mergeStateStatus": "UNSTABLE", "lastAction": "approve-ci", "lastActionAt": "2026-08-10T17:30:00Z" } } } ``` Write/update after every run (dry-run or apply). Diff against this file for `--changed`. If missing, treat all open PRs as new for one full pass, then write the snapshot. ## Prerequisites ```bash gh auth status gh repo view --json nameWithOwner,defaultBranchRef,owner ``` Stop if not authenticated. Confirm you are in the target repo (or pass `owner/repo` if the user named one). ## Safety (hard rules) 1. **Never merge** a PR. 2. **Never** `git push --force`. Only `git push --force-with-lease`. 3. **Never mutate** on a security finding (`security: "alert"`). Report and stop that PR. 4. **Default action target = outside only.** In-house rebases require `--include-in-house` (or explicit PR numbers that happen to be in-house). 5. **In-house security:** skip malware fan-out unless the PR touches `scripts/`, `.github/workflows/`, lockfiles, or install lifecycle — then light scan only. 6. **Worktrees only** for apply-mode git ops (`spawn_subagent` with `isolation: "worktree"`). Do not checkout foreign branches in the main workspace. 7. Cap concurrent apply subagents at **8** (worktrees + API). Read-only fan-out may go up to **100**. 8. If rebase conflicts cannot be resolved cleanly in under ~10 minutes of agent work, **abort**, leave a note in the report, do not push partial state. 9. `--apply` / "apply" / "go ahead" / "yes" after a dry-run **is consent**. Write the apply plan into the report and mutate immediately. Do not stop for a second yes, including when more than 5 PRs would be mutated. Daily `/loop … --apply` likewise fires without re-prompting. 10. Prefer **rebase** for both outside and in-house. Use merge-from-base only when the agent JSON says so (many merge commits, prior merge strategy). 11. **Push is part of rebase.** After a clean rebase (or merge-from-base), run `git push --force-with-lease` onto the PR head remote, then verify `gh pr view N --json headRefOid` changed. Do not mark the PR done until the remote moved or you recorded `push-403`. 12. **Never comment on a PR.** GitHub already notifies the author on push. A comment from the maintainer reads as a review ping / waiting-on-author. Record rebase/CI results in `.agent/pr-sweep/SWEEP-*.md` only. No `gh pr comment`, no review comments, no issue comments. ## Procedure ### 1. Resolve repo + "us" set ```bash OWNER_REPO=$(gh repo view --json nameWithOwner --jq '.nameWithOwner') OWNER=$(echo "$OWNER_REPO" | cut -d/ -f1) REPO=$(echo "$OWNER_REPO" | cut -d/ -f2) DEFAULT_BRANCH=$(gh repo view --json defaultBranchRef --jq '.defaultBranchRef.name') DEFAULT_SHA=$(git rev-parse origin/$DEFAULT_BRANCH 2>/dev/null || gh api repos/$OWNER/$REPO/commits/$DEFAULT_BRANCH --jq .sha) ``` Build **in-house logins** (`US`): 1. Org members (if owner is an org): ```bash gh api orgs/$OWNER/members --paginate --jq '.[].login' 2>/dev/null ``` 2. Repo collaborators with `admin` or `maintain` or `push`: ```bash gh api repos/$OWNER/$REPO/collaborators --paginate --jq '.[] | select(.permissions.admin or .permissions.maintain or .permissions.push) | .login' ``` 3. Logins in `CODEOWNERS` (and resolve teams when cheap). 4. Bots: `dependabot[bot]`, `renovate[bot]`, `github-actions[bot]`, `copilot-swe-agent[bot]`, etc. → in-house. Author is **outside** if login ∉ `US`. ### 2. List target PRs ```bash gh pr list --state open --limit 200 \ --json number,title,url,author,isDraft,baseRefName,headRefName,headRepository,headRepositoryOwner,isCrossRepository,mergeable,mergeStateStatus,reviewDecision,statusCheckRollup,labels,additions,deletions,changedFiles,createdAt,updatedAt,assignees,headRefOid ``` (REST fallback if GraphQL 502s.) Apply filters **in order**: 1. Explicit numbers → use only those. 2. Drop drafts from action set (mention under skipped). 3. If `--conflicts` → keep only conflicting/dirty. 4. If `--behind` → keep only behind/not up to date. 5. If `--changed` → keep only snapshot-diffed changes (or 24h `updatedAt` if no snapshot). 6. If `--daily` → union of new-outside ∪ changed ∪ behind ∪ conflicts ∪ waiting-approval (see Daily). 7. Else → all open non-draft. If count > 100, process 100 most-recently-updated; list the rest under "Skipped (over budget)". ### 3. Fan-out (read phase) Spawn up to **100** parallel `general-purpose` subagents. One PR per agent. **Cheap path (daily / already-clean outside):** if snapshot has `security: clean` and head SHA unchanged and only behind/conflicts flag flipped, skip full `gh pr diff` malware scan — re-fetch mergeability + checks only. Each agent returns **one JSON object only**: ```json { "number": 123, "title": "...", "url": "https://github.com/...", "author": "login", "outside": true, "draft": false, "security": "clean|alert|review", "securityReasons": ["..."], "relevant": true, "relevanceReason": "<=120 chars", "behindBase": true, "mergeable": "MERGEABLE|CONFLICTING|UNKNOWN", "rebasePlan": "none|rebase|merge-from-base|blocked-conflicts|blocked-security|n/a-skip", "ci": { "overall": "passing|failing|pending|waiting-approval|none", "needsWorkflowApproval": false, "failedChecks": [], "pendingChecks": [] }, "assignForReview": true, "assignTo": ["login-or-team"], "priority": "P0|P1|P2|P3", "actionsPlanned": [ "security-alert", "rebase", "push-force-with-lease", "approve-ci", "none" ], "blockers": "<=120 chars or empty", "summary": "<=160 chars" } ``` #### Per-PR agent instructions (embed fully) ``` You are auditing GitHub PR in for pr-sweep. Mode: read-only. Do not push, comment, approve, or merge. 1) Fetch: gh pr view --json title,body,author,isDraft,baseRefName,headRefName,headRepositoryOwner,isCrossRepository,mergeable,mergeStateStatus,reviewDecision,statusCheckRollup,labels,files,additions,deletions,commits,url,assignees,headRefOid gh pr checks 2>/dev/null || true # Full diff only if: outside AND (new OR security not yet clean in snapshot OR headSha changed) gh pr diff # when required 2) outside: true if author.login not in: 3) Security: - Outside: always for new/changed head; use checklist references/security-checklist.md (next to this SKILL.md) - In-house: clean by default unless scripts/CI/lockfile/install lifecycle touched security: alert | review | clean 4) relevant + relevanceReason 5) behindBase + rebasePlan: - none | rebase | merge-from-base | blocked-conflicts | blocked-security | n/a-skip - In-house with --include-in-house: rebasePlan is rebase/merge-from-base/blocked-conflicts (not n/a-skip) - In-house without include: rebasePlan n/a-skip 6) CI: overall + needsWorkflowApproval + failed/pending checks 7) assignForReview, assignTo, priority, actionsPlanned Return ONLY the JSON object on one line. ``` ### 4. Aggregate dry-run report Write `.agent/pr-sweep/SWEEP-YYYY-MM-DD.md` (create dirs). Structure: ```markdown # PR Sweep — — — mode: dry-run|apply — scope: full|daily|behind|conflicts|changed ## Security alerts ## Needs human eyes ## Outside PRs — recommended actions ## In-house PRs — recommended actions # when --include-in-house ## Skipped ## Apply plan ``` Also update `snapshot.json` (even on dry-run) with current head SHAs and merge state. Print a short chat summary: alert count, would-rebase count (outside / in-house), CI approvals, top assign list (max 5), report path. **If mode is dry-run, stop here** (unless user then says apply). ### 5. Apply mode `--apply` **is consent**. Write the Apply plan into the report and mutate **in this turn**. Do not wait for another yes. **Done** for a rebase target = default-branch is an ancestor of the **remote** head SHA (push landed) **or** `result: push-403` is recorded. Local-only rebase = failed apply. Process PRs that are actionable: | Author | Security | Flag | Mutate? | | -------- | ------------ | -------------------- | ----------------------------------------- | | outside | clean | default | yes (rebase, approve-ci) | | outside | alert/review | any | **no** (report only) | | in-house | clean | `--include-in-house` | yes (rebase only; CI approve usually N/A) | | in-house | — | no flag | **no** | #### 5a. Security gate If `security != "clean"` → skip mutations. #### 5b. Rebase / update base (worktree subagent) `spawn_subagent` with `isolation: "worktree"`, max **8** concurrent. Embed the push + verify steps in the child prompt (completion criterion: remote SHA changed). ```bash BEFORE=$(gh pr view --json headRefOid --jq .headRefOid) gh pr checkout git fetch origin git rebase origin/ # only if agent said merge-from-base: # git merge origin/ # conflicts: resolve only clear non-overlapping/import/lockfile/generated cases. # else: git rebase --abort; result=blocked-conflicts; do not push. git push --force-with-lease # Forks: push to the upstream `gh pr checkout` set (often not origin). # If no upstream: git push --force-with-lease HEAD: AFTER=$(gh pr view --json headRefOid --jq .headRefOid) # MUST: AFTER != BEFORE. If equal, the push did not land — not done. ``` Org-fork 403 (`maintainerCanModify` false): record `push-403`, do not retry loops. Still never `git push --force`. #### Apply child prompt (embed fully) ``` You are applying pr-sweep to GitHub PR https://github.com/OWNER/REPO/pull/N. Mode: APPLY in a worktree. Never merge. Never git push --force (lease only). Never comment on the PR. DONE only when the PR's remote head SHA changed, or you return result=push-403 or blocked-conflicts. A local rebase with no push is a FAILED apply. Do not stop after rebase. 1. BEFORE=$(gh pr view N --json headRefOid --jq .headRefOid) 2. gh pr checkout N 3. git fetch origin DEFAULT_BRANCH 4. git rebase origin/DEFAULT_BRANCH Conflicts: resolve only trivial non-overlapping import/lockfile/generated cases. Else git rebase --abort and return blocked-conflicts (no push). 5. git push --force-with-lease Forks: push the upstream gh pr checkout configured (often not origin). No upstream: git push --force-with-lease HEAD: 6. AFTER=$(gh pr view N --json headRefOid --jq .headRefOid) If AFTER == BEFORE and rebase was not already-current: push did not land — not done. Return ONLY JSON: {"number":N,"pushed":true|false,"newHeadSha":"...","result":"rebased-pushed|already-current|blocked-conflicts|push-403|error","blockers":"","summary":""} ``` #### 5c. Approve waiting workflows (outside, relevant, clean) ```bash gh api -X POST repos/$OWNER/$REPO/actions/runs//approve ``` If 403/404 → note manual approval needed. Do not re-run failing CI unless asked. ### 6. Final report + assignment recommendations Update the markdown report with **Results**: mutated, still blocked, assign-for-review table. Do **not** `gh pr edit --add-assignee` unless the user said "assign them". Offer once (opt-in): publish report as **secret gist**: ```bash gh gist create .agent/pr-sweep/SWEEP-YYYY-MM-DD.md --desc "PR sweep — — " ``` Secret is the default — never `--public` unless asked. Chat closer: ≤5 lines — alerts, actions taken, top PRs to review, report path, gist URL if created. ## Orchestrator tips - Prefer one read fan-out, then a smaller apply fan-out only for real mutations. - **Daily first:** load snapshot → filter → only then fan out. Avoid 60-agent full scans every day. - In-house rebases share the same force-with-lease rules; branches on the origin repo push to `origin`. - Org-fork push 403s (maintainerCanModify false / org policy): report partial; do not retry loops. - Cost: <20 PRs → main thread fine; no need for 100 agents. - Does **not** replace `triage-github` (backlog ranking) or `pr-babysit` (ongoing CI/comment fixing). ## Reference - Security heuristics: [references/security-checklist.md](references/security-checklist.md)