# issue-23-final-integration-validation: Run Complete End-to-End Validation

## Description
Execute comprehensive validation of all 5 primary metrics (M1-M5) and 34 acceptance criteria across binary optimization, daemon mode, caching, bug fixes, and profiling. Generate final report confirming 50-100x speedup achieved with statistical confidence. Integrates all prior issue deliverables into single production-ready validation.

## Architecture Reference
Read architecture.md Section "Final Validation" and Section 6.4 (Speedup Validation Script) for:
- Complete validation script structure with hyperfine + jq + bc
- Exit code contract: 0 if all metrics pass, 1 otherwise
- Report format showing M1-M5 metrics with pass/fail indicators

## Interface Contracts
- Script: `scripts/final_validation.sh` (exit 0 if all M1-M5 pass, exit 1 otherwise)
- Report format: Human-readable table with M1-M5 status, test counts, benchmark CV values
- Statistical validation: Uses hyperfine --runs 100, jq parsing, bc arithmetic for speedup calculation

## Files
- **Create**: `scripts/final_validation.sh`
  - Runs cargo test --release and counts pass/fail (M3, M4)
  - Executes all speedup validation scripts (M1, M2)
  - Parses Criterion estimates.json for CV < 10% (M5)
  - Validates cache performance benchmarks
  - Generates comprehensive pass/fail report

## Dependencies
- issue-22 (performance-documentation): PERFORMANCE.md updated with baselines
- issue-18 (binary-subprocess-benchmark): Binary speedup validation available
- issue-19 (daemon-mode-benchmark): Daemon latency validation available
- issue-20 (cache-performance-benchmark): Cache hit/miss validation available
- issue-10 (bug-fixes-verification): All 681 tests passing

## Provides
- Final validation of all success metrics M1-M5
- Comprehensive test and benchmark report with statistical confidence
- Production-ready PyRust CLI confirmation
- CI/CD-ready validation script (exit code 0 = success)

## Acceptance Criteria
- [ ] M1: Binary subprocess ≤380μs mean with 95% CI (validated via hyperfine)
- [ ] M2: Daemon mode ≤190μs mean (validated via custom benchmark client)
- [ ] M3: All 664 currently passing tests still pass (no regressions)
- [ ] M4: 681/681 tests passing (100% pass rate, all bugs fixed)
- [ ] M5: All benchmarks CV < 10% (parsed from Criterion estimates.json)
- [ ] Script exits 0 when all metrics pass, exits 1 if any fail
- [ ] Report shows clear pass/fail status for each metric with actual vs target values

## Testing Strategy

### Test Files
- `scripts/final_validation.sh`: Main validation orchestrator script

### Test Categories
- **Integration tests**: Runs cargo test --release and validates 681/681 pass
- **Performance tests**: Executes all speedup validation scripts sequentially
- **Statistical validation**: Parses JSON benchmarks for mean, CI, and CV values
- **Report generation**: Aggregates results into human-readable summary

### Run Command
```bash
./scripts/final_validation.sh
# Exit code 0 = all M1-M5 pass (production-ready)
# Exit code 1 = one or more metrics failed (not production-ready)
```
