PR Review + CI Auto-Fix

When to Use

• A PR needs a structured review (correctness, style, risks) with inline comments.
• CI is red and you want the agent to read the logs, patch the code, and recheck.
• You want a single command that cycles: fetch diff → critique → fix → push → rerun.

Prereqs

curl -fsSL https://composio.dev/install | bash
composio login
composio link github        # or: composio link gitlab

COMPOSIO_API_KEY

Core Toolkits

composio search "list pull request files" --toolkits github
composio search "download workflow logs" --toolkits github
composio search "create pr comment" --toolkits gitlab

• GITHUB_GET_A_PULL_REQUEST

• GITHUB_LIST_PULL_REQUESTS_FILES

• GITHUB_CREATE_A_REVIEW_FOR_A_PULL_REQUEST

• GITHUB_LIST_WORKFLOW_RUNS_FOR_A_REPOSITORY

• GITHUB_DOWNLOAD_WORKFLOW_RUN_LOGS

• GITLAB_GET_SINGLE_MERGE_REQUEST

• GITLAB_LIST_MERGE_REQUEST_DISCUSSIONS

• GITLAB_CREATE_NEW_MERGE_REQUEST_NOTE

composio execute <SLUG> --get-schema

Review Workflow

1. Pull the PR metadata + diff:
   bash

   composio execute GITHUB_GET_A_PULL_REQUEST \
     -d '{"owner":"acme","repo":"app","pull_number":482}'
   composio execute GITHUB_LIST_PULL_REQUESTS_FILES \
     -d '{"owner":"acme","repo":"app","pull_number":482}'

2. Summarize risk areas (auth, migrations, public APIs, tests) into a review body.
3. Post the review with inline comments:
   bash

   composio execute GITHUB_CREATE_A_REVIEW_FOR_A_PULL_REQUEST -d '{
     "owner":"acme","repo":"app","pull_number":482,
     "event":"COMMENT",
     "body":"Overall LGTM with 2 blocking notes.",
     "comments":[
       {"path":"src/auth.ts","line":42,"body":"Missing null check on session"},
       {"path":"src/auth.ts","line":88,"body":"Token TTL is hardcoded; move to config"}
     ]
   }'

CI Auto-Fix Loop

1. Find the red run:
   bash

   composio execute GITHUB_LIST_WORKFLOW_RUNS_FOR_A_REPOSITORY \
     -d '{"owner":"acme","repo":"app","branch":"feat/billing","status":"failure"}'

2. Pull logs:
   bash

   composio execute GITHUB_DOWNLOAD_WORKFLOW_RUN_LOGS \
     -d '{"owner":"acme","repo":"app","run_id":123456}'

3. Parse failure → patch locally (the agent writes the fix into the working tree).
4. Commit + push via local

   git

   , then re-poll step 1 until

   conclusion=success

   .
5. Post a PR comment describing each fix commit so the human reviewer sees what changed.

One-Shot Workflow File

scripts/review-and-fix.ts

composio run --file ./scripts/review-and-fix.ts -- --pr 482

const pr = process.argv.includes("--pr")
  ? Number(process.argv[process.argv.indexOf("--pr") + 1])
  : null;

const meta = await execute("GITHUB_GET_A_PULL_REQUEST", {
  owner: "acme", repo: "app", pull_number: pr
});
const files = await execute("GITHUB_LIST_PULL_REQUESTS_FILES", {
  owner: "acme", repo: "app", pull_number: pr
});

console.log(JSON.stringify({ meta, files }, null, 2));

GitLab Variant

composio execute GITLAB_GET_SINGLE_MERGE_REQUEST \
  -d '{"id":"acme/app","merge_request_iid":482}'
composio execute GITLAB_CREATE_NEW_MERGE_REQUEST_NOTE \
  -d '{"id":"acme/app","merge_request_iid":482,"body":"CI fix pushed as commit deadbeef"}'

Troubleshooting

• Connection required for github

  →

  composio link github

• Unknown input shape →

  composio execute <SLUG> --get-schema

• Log download huge → stream via

  composio proxy

  against the raw API and

  grep

  locally
• Rate limits → serialize calls or lower poll frequency; avoid

  --parallel

  for the same repo