- Add schema.json with complete baseline metrics definition
- Required fields: commit_sha, timestamp, pdftract_geomean, grep_1000_mean_ms
- Optional fields: throughput_mb_per_sec, files_per_sec, total_runtime_sec
- All fields include types, units, descriptions, and examples
- Follows JSON Schema draft-07 specification
- Add README.md with comprehensive documentation
- Purpose and use cases for baseline metrics
- Complete field reference with types and units
- Schema validation instructions
- CI/CD integration guidelines
- Performance targets from project plan
- Update procedures and regression detection
- Validate existing main.json against schema structure
- All required fields present and correctly formatted
Acceptance criteria:
✓ benches/baselines/ directory exists
✓ JSON schema documented with all required fields
✓ README explains baseline format and purpose
✓ Schema includes types and units for each metric
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