Report bugs or propose improvements through this repository's issues. Use pull requests for code, documentation, and fixture changes. Explain the problem, expected behavior, and validation. Include a small public reproducer.
Run the checks in VERIFICATION.md before submitting. Changes to runtime behavior must include regression tests for the changed behavior and its failure cases. Keep evidence separate from approval, preserve uncertainty, and do not introduce credentials or external actions into examples.
Use the existing Python style and UTF-8 files. Preserve third-party notices. Contributions to original software use the repository's software license. Do not submit private reports, participant records, or restricted source code.