CONTRIBUTING.md

# Contributing

Thanks for improving BranchForge.

1. Create a focused branch.
2. Add or update tests for behavioral changes.
3. Run `pytest -q` and `ruff check .`.
4. Keep generated code execution behind a sandbox boundary.
5. Never commit API keys, project IDs tied to private resources, or model transcripts containing
   user data.

Small, evidence-backed pull requests are preferred.