Fix

Bug in, fixed branch out. No hand-holding.

Classify → Understand → Hypothesize → Reproduce → Fix → Verify → Review → Handoff

Fully autonomous. Four circuit breakers halt the run:

1. Can't identify root cause after 3 investigation rounds
2. Bug cannot be reproduced after 3 attempts
3. Fix causes more test failures than it solves
4. Bug is in an external dependency or infrastructure (can't fix from this repo)

Phase 0: Setup

Step 1: Classify Input