late-brake
# Late Brake - Racing Lap Data Analysis Skill
Late Brake is a pure command-line (CLI) racing lap data analysis tool that provides:
- Import lap data in NMEA 0183 / RaceChrono VBO formats
- Auto split laps based on track start/finish line
- Compare any two laps for time/speed differences by sector and corner
- Output structured JSON comparison results ready for AI coach analysis
## Dependencies
- Python >= 3.10
- Dependencies: click, pydantic, numpy, geographiclib, jsonschema, wcwidth
Dependencies are declared in SKILL.md, OpenClaw will handle automatic installation.
## Entry Points
Source code is directly in `scripts/` directory, can be imported directly:
```python
import sys
import os
SKILL_DIR = os.path.dirname(os.path.abspath(__file__))
sys.path.insert(0, os.path.join(SKILL_DIR, "scripts"))
from late_brake.cli import main as late_brake_main
```
Or execute directly as command-line:
```bash
# Load data file, list all laps
python -m late_brake.cli load <file> --json
# Compare two laps, output JSON result
python -m late_brake.cli compare <file1> <lap1> <file2> <lap2> --json
```
## Features
| Feature | Command | Description |
|---------|---------|-------------|
| Load data file | `late-brake load <file>` | Parse data, auto split laps, list all detected laps |
| Compare two laps | `late-brake compare <file1> <lap1> <file2> <lap2>` | Compare lap differences, output text table or JSON |
| Track management | `late-brake track list/info/add` | Manage built-in/custom tracks |
## JSON Output Schema
Full JSON schema definition: [compare-json-schema.md](references/compare-json-schema.md)
## Use Cases
- Racing drivers upload lap data files for comparison analysis
- AI racing coach needs structured comparison data to give advice
- Batch processing multiple lap data files
标签
skill
ai
