# Critical Bug Fixes - Summary

## 🎉 All Critical Issues Resolved

### What Was Fixed

1. **TUI File Corruption** ⚠️ CRITICAL
   - Multi-line function signatures now handled correctly
   - Docstrings inserted in the right location every time
   
2. **Race Conditions** ⚠️ HIGH
   - Added file locking (fcntl) to prevent concurrent write corruption
   - Atomic read-modify-write operations

3. **Git Hook Crashes** ⚠️ HIGH  
   - Works on repos with no commits (initial commit)
   - Graceful error handling for all git operations

4. **Ignore Patterns** ⚠️ HIGH
   - Fixed `**/` glob pattern matching
   - Root-level test files now properly ignored

5. **Complexity Inflation** ⚠️ MEDIUM
   - Function calls no longer inflate scores
   - Only recursive calls add complexity
   - More accurate scoring overall

6. **Encoding Issues** ⚠️ MEDIUM
   - Auto-detects file encoding (UTF-8, Latin1, etc.)
   - Handles Unicode function names gracefully
   - No more crashes on non-UTF-8 files

7. **Silent Parser Failures** ⚠️ MEDIUM
   - Lizard failures now logged to stderr
   - Easier debugging when parsing fails

## Verification

All fixes tested and verified:
- ✅ TUI saves work correctly on complex signatures
- ✅ Git hook works on new repos
- ✅ Ignore patterns match correctly
- ✅ Complexity scores are accurate
- ✅ No crashes on encoding issues
- ✅ Parser failures are visible

## Production Status

**✅ PRODUCTION READY**

The tool is now safe to use in production environments. All critical bugs that could cause data loss or unexpected failures have been resolved.

See BUGFIXES.md for detailed technical documentation of each fix.
