# Feedback Summary

## Decision: APPROVE ✅

All acceptance criteria have been validated and are passing. Tests pass with 100% AC coverage, and there are no blocking review issues.

## Implementation Status

**All 5 Acceptance Criteria Met:**
1. ✅ Script created with executable permissions (chmod +x)
2. ✅ Reads target/criterion/cold_start_simple/base/estimates.json and target/criterion/cpython_pure_simple/base/estimates.json
3. ✅ Calculates speedup using bc with correct formula (cpython_time_ns / pyrust_time_ns)
4. ✅ Outputs 'PASS'/'FAIL' based on ≥50.0 threshold and writes to target/speedup_validation.txt
5. ✅ Exit codes: 0 on PASS, 1 on FAIL

## Non-Blocking Items (Tracked for Future Work)

The code review identified two **should_fix** debt items and two **suggestions** that do not block approval:

**Should Fix (for future improvement):**
- Error handling for jq extraction failure — add validation to catch 'null' or empty strings
- Division by zero protection — add explicit check for zero/near-zero PYRUST_TIME_NS values

**Suggestions (for future consideration):**
- Platform-agnostic installation instructions (currently assumes macOS/Homebrew)
- Add --version and --help CLI flags for better usability

These items can be addressed in a follow-up PR if desired.

## Ready for Merge

The implementation is functionally correct, fully tested, and ready for production use.
