GitHub Actions Branch Drift Audit

Use this skill to catch branch-specific CI reliability regressions before they spread into your mainline release flow.

What this skill does

• Reads GitHub Actions run JSON exports
• Groups runs by repository + workflow + branch
• Selects a baseline branch per repository/workflow (defaults to main|master)
• Compares each non-baseline branch against that baseline on:
  • failure-rate drift (percentage points)
  • average runtime drift (ratio)
• Flags warning/critical drift severity and supports CI fail gates
• Emits text or JSON output for pipeline checks and triage dashboards