| name | pr-cycle |
| description | PR review-and-update cycle — the orchestrator that takes a PR from review to resolved. It runs a local review (by delegating to the `pr-review` skill), fetches open GitHub review comments, evaluates all findings, applies valid fixes, runs CI, commits, pushes, resolves threads, and re-requests Copilot review. Supports three modes — `full` (default, everything), `local` (only the local-review-and-fix loop; no GitHub PR-conversation reads or mutations), and `remote` (only the GitHub PR feedback loop; no local review). The review sub-agents default to Sonnet but can be overridden per run (e.g. to opus). Use when asked to "run the pr cycle", "address pr comments", "resolve comments and re-request review", "review and fix the branch", "run the remote pr cycle", or after pushing a new round of changes. For a read-only review with no fixes/push, use `pr-review` instead. |
| allowed-tools | Bash, Read, Edit, Write, Agent |
PR Cycle
Run one full iteration of the review → fix → push → re-request loop. This is the
orchestrator: it produces findings, addresses them with fixes, and updates the PR
(commit, push, resolve threads, re-request review).
The review half is owned by the separate pr-review skill, which spawns the two
read-only review sub-agents and reports their findings. pr-cycle does not duplicate
that logic — step 2 below delegates to pr-review. Reach for pr-review directly when
you only want a read-only review (no fixes, no push, no GitHub-conversation changes);
reach for pr-cycle when you want those findings actually addressed and the PR updated.
The helper script is .agents/skills/pr-cycle/pr.py. Run it outside the sandbox (GitHub API requires network). Multiple commands can be passed in one call so only one permission prompt is needed:
.agents/skills/pr-cycle/pr.py [PR_NUMBER] COMMAND [COMMAND ...]
The leading PR_NUMBER is optional — it is required only for the GitHub commands (comments, threads, resolve, rerequest, minimize, codspeed). The local commands (ci, readme, pushpreview, diff) take no PR number, so e.g. pr.py ci works directly (no placeholder needed).
Available commands: comments, threads, resolve, rerequest, minimize,
codspeed, ci, readme, pushpreview, diff.
Modes
This skill runs in one of three modes. The mode is taken from the input (see Input):
full (default) — the complete review → fix → push → resolve → re-request loop. Runs every step below.local — only the local review and fix loop. Runs the pr-review skill (the local code-review and consumer sub-agents), evaluates their findings, applies fixes, runs CI, regenerates the README, and commits/pushes. Does not interact with the PR conversation on GitHub: it does not read PR comments or threads, does not edit the PR body, and does not resolve, minimize/hide, or re-request Copilot review.remote — only the GitHub PR feedback loop. Fetches and evaluates open PR comments/threads, applies fixes, runs CI, regenerates the README, commits/pushes, then resolves threads, minimizes prior comments, re-requests Copilot review, and audits the PR body. Does not run the local review (pr-review).
Both local and remote still commit and push the fixes they make (a code change has to land to be useful), and both follow the push protocol (show the push preamble before pushing). "Does not interact with GitHub" for local means the PR-conversation operations — comment/thread reads and mutations, Copilot re-request, PR-body edits — not the git push itself.
Step-by-step applicability (✓ = runs in that mode):
| Step | What | full | local | remote |
|---|
| 1 | Fetch open comments + threads | ✓ | | ✓ |
| 2 | Run local review (pr-review) | ✓ | ✓ | |
| 3 | Evaluate findings | ✓ | ✓ (agents only) | ✓ (PR comments only) |
| 4 | Apply fixes | ✓ | ✓ | ✓ |
| 5 | Run CI | ✓ | ✓ | ✓ |
| 6 | Regenerate README | ✓ | ✓ | ✓ |
| 7 | Sync audit (CHANGELOG / commit msg) | ✓ | ✓ | ✓ |
| 7c | Sync audit — PR body edit | ✓ | | ✓ |
| 8 | Commit + push | ✓ | ✓ | ✓ |
| 9 | Resolve threads + re-request Copilot | ✓ | | ✓ |
| 10 | Minimize prior comments | ✓ | | ✓ |
| 11 | Report | ✓ | ✓ | ✓ |
When a step is not applicable to the active mode, skip it entirely — do not run its pr.py command or gh call. In local mode you must not invoke any of comments, threads, resolve, rerequest, minimize, or gh pr edit/gh pr view --json body.
Model tiers
This skill is designed to keep expensive Opus reasoning concentrated in the
judgment core and push everything else to cheaper models or to no model at all.
| Tier | What | Steps | Model |
|---|
| 0 — mechanical | All GitHub API ops, make ci, README regen, push preamble | 1, 5, 6, 8(preamble), 9, 10 | script (pr.py) |
| 1 — cheap delegation | Local review via pr-review (read-only sub-agents); fix application, fanned out across disjoint sub-agents | 2, 4b, 11 | Sonnet by default; per-group model override to Opus for harder groups (see 4b); review sub-agents overridable per-run (see Input) |
| 2 — judgment core | Classify findings; write explicit fix specs + test assertions; partition the fan-out; sync audit | 3, 4a, 7 | Opus (session model) |
A Sonnet session can drive the whole cycle; only Tier-2 actually needs strong
reasoning, so consider switching the session to a cheaper model once the judgment
core is done.
Input
Optional PR number, an optional mode keyword (full, local, or remote), and an optional review-agent model override, in any order.
- Mode: if one of
local / remote is present in the input, use it; otherwise default to full. Phrasings map as: "local review" / "just the local reviewers" / "local pr cycle" → local; "remote" / "address the pr comments" / "resolve and re-request" / "remote pr cycle" → remote; anything else (or "run the pr cycle") → full.
- Review-agent model: the model used by the local review sub-agents (
pr-code-reviewer, pr-consumer-reviewer) defaults to sonnet, but can be overridden. If the input names a model (e.g. "use opus for the reviewers", "review with opus", "opus reviewers", "model=opus"), pass that model through to the pr-review delegation in step 2 (which forwards it to the Agent tool's model parameter on both sub-agent spawns). Only the review sub-agents are affected — this does not change the session model or the model used by pr-fix-implementer. This override is only meaningful in modes that run the local review (full, local); ignore it in remote mode.
- PR number: if omitted, infer it from the current branch using
gh pr view --json number. In local mode no PR number is needed at all — the pr.py wrapper commands used there (ci, readme, pushpreview, diff) take no PR argument, so call them directly (e.g. pr.py ci). This also means local mode works without gh installed.
Announce the resolved mode (and, when the reviewers will run, the review-agent model) at the start — e.g. "Running pr-cycle in local mode with opus reviewers" — before executing any step.
Steps
1. Fetch ALL open comments and unresolved threads
Modes: full, remote. Skip entirely in local mode.
Run outside the sandbox:
.agents/skills/pr-cycle/pr.py PR_NUMBER comments threads
comments fetches all inline review comments, separates them into new (post-last-push) vs pre-existing unresolved, and prints each with its ID, created_at, file:line, author, and body. Record every comment for evaluation in step 3 — do not filter by timestamp.
threads lists all review thread node IDs with their resolution status. Unresolved threads will all be resolved in step 10.
2. Run the local review (delegate to pr-review)
Modes: full, local. Skip entirely in remote mode (no local review runs).
The review itself lives in the pr-review skill — do not re-implement it here. Run that
skill against this PR/branch to obtain the local findings, passing through the
review-agent model override from the Input if one was given. pr-review will:
- acquire the diff (
.agents/skills/pr-cycle/pr.py PR_NUMBER diff, equivalent to
git diff origin/master),
- shard the changed material into appropriately sized, randomized chunks and spawn one
pr-code-reviewer and one pr-consumer-reviewer per shard in parallel (read-only,
each carrying its own rubric; Sonnet by default, or the overridden model on all
spawns), and
- return a consolidated findings report with severity and a per-finding verdict.
Carry pr-review's findings forward into step 3, where they are evaluated alongside any
GitHub PR comments (in full mode). Do not act on fixes inside pr-review — it is
read-only; addressing findings is step 4 here.
3. Evaluate all findings
Modes: all. The set of findings depends on the mode:
full — all open inline PR comments (from step 1) plus both sub-agent reports (from step 2).local — only the two sub-agent reports. Do not reference PR comments.remote — only the open inline PR comments. There are no sub-agent reports.
Present all in-scope findings together. For each finding:
- Valid: the concern is real and the code should change
- Already fixed: the concern was valid but the code has already been corrected (the comment is stale) — mark for resolution only
- Invalid: the finding is incorrect or environment-specific (e.g. rustc version mismatch on trybuild golden files)
Explain your reasoning for each verdict. Do not apply any fix silently — call out what you are doing and why.
4. Apply fixes for valid findings
Modes: all.
4a. Write a fix spec for each valid finding (Opus / judgment core)
For each valid finding, produce an explicit fix spec before touching any file:
Finding: <one-line summary>
Target: <file path>
Location: <file:line or unique surrounding snippet>
Change: <exact new text, or precise add/remove/replace description — never "improve the wording">
Test: <exact function name + exact assertions that would fail on unfixed code>
OR "no test needed (doc-only)"
The spec must be precise enough for Sonnet to apply without judgment calls.
Test design always stays here — this repo requires tests that fail on the unfixed
code and pass on the fixed code; a trivially-passing test defeats the rule.
Common fix types:
- Documentation/comment updates:
src/stores/, src/lib.rs, cached_proc_macro/src/lib.rs
- Test additions/corrections:
tests/cached.rs
- Trybuild golden file regeneration:
TRYBUILD=overwrite cargo test --no-default-features --features "proc_macro,time_stores" compile_fail_macro_arg_validation
- Macro code changes:
cached_proc_macro/src/
4b. Partition the fixes and fan out across disjoint sub-agents
Once every valid finding has a spec, apply them by fanning out across as many
parallel sub-agents as the specs allow, rather than applying them serially in the
orchestrator. Two rules govern the fan-out:
Disjoint partitioning (correctness). Parallel agents share one working tree, so two
agents must never write the same file — concurrent edits to one file race and corrupt
each other. Partition the specs into groups whose written-file sets do not overlap:
- For each spec, compute the full set of files it writes — the Target file(s) and the
test file its Test clause adds to (often
tests/cached.rs).
- Any two specs that share a written file MUST land in the same group. A common sink
like
tests/cached.rs therefore pulls every test-adding spec into one group — that is
expected; keep that group together rather than risking a race.
- Otherwise split into as many groups as possible — ideally one spec per group — to
maximize parallelism. More disjoint groups means more concurrency.
Appropriate model per group (cost). Each group is handled by a pr-fix-implementer
agent spawned with the Agent tool's model parameter set to the tier the group's
hardest fix needs:
model: sonnet (the agent's default) — mechanical or repetitive groups: doc/comment
updates, a pattern replicated across the sharded stores, golden-file regen, simple
test additions.model: opus — groups containing a subtle logic change, a macro change in
cached_proc_macro/src/, or any fix whose application still needs real reasoning. The
spec from 4a is already precise enough to hand off (it must be, to be valid); raising
the implementer's model buys more careful application, not more decision latitude.
Spawn all groups in a single message (multiple Agent calls) so they run concurrently.
Each agent's prompt is the verbatim fix spec(s) for its group. Before spawning, state the
partition: list each group, the files it owns, its model, and why that model.
Inline fallback. Skip the fan-out and edit directly only in the degenerate case where
it cannot pay off: a single spec, or a few tiny one-off edits that all touch one
overlapping region (so they cannot be partitioned anyway). State "applying inline because:
".
After all agents report back, verify with:
.agents/skills/pr-cycle/pr.py PR_NUMBER ci
Then spot-check: confirm that at least one of the newly added tests would fail if
its corresponding fix were reverted. (Read the test and reason through it; you do
not have to literally revert the fix.)
5. Run CI
Modes: all. Run outside the sandbox:
.agents/skills/pr-cycle/pr.py PR_NUMBER ci
This runs make ci, filters Redis/Docker noise, and exits non-zero only on real
failures. If it exits non-zero, fix the reported failures and re-run.
If trybuild golden files drift, regenerate them:
TRYBUILD=overwrite cargo test --no-default-features --features "proc_macro,time_stores" compile_fail_macro_arg_validation
6. Regenerate README if src/lib.rs changed
Modes: all. Run outside the sandbox:
.agents/skills/pr-cycle/pr.py PR_NUMBER readme
No-ops automatically when src/lib.rs is unchanged vs origin/master.
7. Sync audit — docs, commit message, and PR summary
Modes: all for parts (a), (b), (d). Part (c) — PR-body edit — runs only in full and remote; skip it in local (it reads and mutates the PR on GitHub).
Before staging anything, do a consistency check. The goal: every artifact that describes "what this PR does" must match the actual diff.
a. Diff summary — produce a concise internal summary of what the branch actually changes:
git diff origin/master --stat
git diff origin/master -- CHANGELOG.md
b. CHANGELOG.md — read the [Unreleased] section. For each bullet:
- Does it describe something that is actually in
git diff origin/master? If a bullet refers to a feature or behavior that was removed, reverted, or renamed, update or remove it.
- Is anything significant in the diff that is NOT mentioned? Add it.
- Check accuracy of any named types, method signatures, attribute names, or feature gates — they must exactly match the code.
c. PR description (full / remote only — skip in local) — read the current PR body:
gh pr view PR_NUMBER --json body
Apply the same audit: every claim must match the diff. Pay special attention to:
- Named types or methods that were renamed or removed
- Feature/behavior claims that no longer apply (e.g. "replaces AtomicU64 across all stores" when only two stores were changed)
- Test counts that are now stale
Update the PR body if anything is inaccurate:
gh pr edit PR_NUMBER --body "..."
d. Commit message — draft a concise new commit message for the fixes made in this cycle. The message should describe only the newly applied changes, not the entire PR.
Do not make the sync audit a "wall of changes" — only fix what is actually wrong.
8. Create a new commit and push
Modes: all (only if fixes were applied this pass). Applies to local and remote too — fixes have to land to be useful.
git add -p
git commit -m "fix: address PR review feedback"
Before pushing, run outside the sandbox to show the push preamble:
.agents/skills/pr-cycle/pr.py PR_NUMBER pushpreview
Then add a one-sentence summary of what the push contains (e.g. "Pushing 1 commit:
doc fix for option+expires constraint and CHANGELOG update"). Then push:
git push origin BRANCH
Create a new commit for every PR-cycle pass that changes files. Do not amend previous commits and do not force push unless the user explicitly requests history rewriting.
Do not add a Co-Authored-By line.
9. Resolve all open threads and re-request Copilot review
Modes: full, remote. Skip entirely in local mode (no PR-conversation mutations, no Copilot re-request).
After the push, run outside the sandbox — combining both steps in one call:
.agents/skills/pr-cycle/pr.py PR_NUMBER resolve rerequest
resolve re-fetches all unresolved threads and resolves each one via GraphQL mutation. Goal: zero open threads after this step.
rerequest triggers a fresh Copilot review on the PR.
10. Minimize all comments from before this cycle
Modes: full, remote. Skip entirely in local mode.
After threads are resolved, hide all inline review comments and top-level PR comments so the PR conversation is clean. Run outside the sandbox:
.agents/skills/pr-cycle/pr.py PR_NUMBER minimize
This fetches all inline review comments and top-level PR comments from all authors and calls the GitHub minimizeComment GraphQL mutation with classifier RESOLVED on each one. Only comments created before the last push timestamp are minimized — comments posted after the push (i.e., responses to the new round of changes) are left visible. Use --dry-run first to preview which comments would be minimized.
11. Report
Modes: all. State the mode that ran, and report only the lines relevant to it.
- The mode that ran (
full / local / remote).
- (
full / remote) How many inline PR comments were found total; how many were new (post-last-push) vs. pre-existing unresolved; how many were valid/already-fixed/invalid; how many were fixed this cycle.
- (
full / local) How many code-reviewer findings were found, how many were valid, how many were fixed.
- (
full / local) How many consumer-reviewer findings were found, how many were valid, how many were fixed.
- Which findings were ruled invalid and why.
- Sync audit result: what was corrected in CHANGELOG, the new commit message, and — in
full / remote — the PR description (or "all in sync").
- (
full / remote) Confirm threads resolved (state total resolved count) and Copilot re-requested.
- The resulting new commit SHA and push status (or "no changes to commit this pass").
