Looking at the agent's trajectory:

1. **Correctly identified merged PRs**: The agent noticed that `merged` field was always `False` in the API response, but correctly pivoted to use `merged_at` to identify truly merged PRs.

2. **Got 10 PRs**: Found 9 on page 1, fetched page 2 to find the 10th (#27727). All 10 are correctly identified with merge timestamps confirming they were actually merged.

3. **Fetched actual CI check data**: Made `get_check_runs` calls for all 10 PRs, confirmed by the actual check run JSON responses in the trajectory.

4. **Correctly identified the failure**: For PR #51146, the check run data clearly shows `"name":"check","conclusion":"failure"` - the agent correctly flagged this.

5. **Accurate final count**: 9 out of 10 fully green, based on actual check data (not assumed).

6. **Complete answer**: All 10 PRs reported with title, author, and per-PR CI status.

The agent's approach was methodical and correct - it handled the API quirk (merged=False despite having merged_at), fetched sufficient pages, and accurately interpreted the CI check results.

{"pass": true, "reason": "The agent correctly identified 10 merged PRs using merged_at timestamps, fetched actual CI check data for all 10, accurately identified PR #51146 as having a failed 'check' job based on real API data, and reported the correct count of 9/10 fully green. The report includes title, author, and per-PR CI status as required."}
