gha

Investigate this GitHub Actions URL: $ARGUMENTS Use the gh CLI to analyze this workflow run. Your investigation should: 1. **Get basic info & identify actual failure**: - What workflow/job failed, when, and on which commit? - CRITICAL: Read the full logs carefully to find what SPECIFICALLY caused the exit code 1 - Distinguish between warnings/non-fatal errors vs actual failures - Look for patterns like "failing:", "fatal:", or script logic that determines when to exit 1 - If you see both "non-fatal" and "fatal" errors, focus on what actually caused the failure 2. **Check flakiness**: Check the past 10-20 runs of THE EXACT SAME failing job: - IMPORTANT: If a workflow has multiple jobs, you must check history for the SPECIFIC JOB that failed, not just the workflow - Use `gh run list --workflow=<workflow-name>` to get run IDs, then `gh run view <run-id> --json jobs` to check the specific job's status - Is this a one-time failure or recurring pattern for THIS SPECIFIC JOB? - What's the success rate for THIS JOB recently? - When did THIS JOB last pass? 3. **Identify breaking commit** (if there's a pattern of failures for the specific job): - Find the first run where THIS SPECIFIC JOB failed and the last run where it passed - Identify the commit that introduced the failure - Verify by checking: does THIS JOB fail in ALL runs after that commit? Does it pass in ALL runs before? - If verified, report the breaking commit with high confidence 4. **Root cause**: Based on logs, history, and any breaking commit, what's the likely cause? - Focus on what ACTUALLY caused the failure (not just any errors you see) - Verify your hypothesis against the logs and failure logic 5. **Check for existing fix PRs**: Search for open PRs that might already address this issue: - Use `gh pr list --state open --search "<keywords>"` with relevant error messages or file names - Check if any open PR modifies the failing file/workflow - If a fix PR exists, note it in your report and skip the recommendation section Write a final report with: - Summary of failure (what specifically triggered the exit code 1) - Flakiness assessment (one-time vs recurring, success rate) - Breaking commit (if identified and verified) - Root cause analysis (based on the ACTUAL failure trigger) - Existing fix PR (if found - include PR number and link) - Recommendation (skip if fix PR already exists)