General guidelines for writing tests in the usethis project, including test class organization
Guidelines for Python code design decisions such as when to share vs. duplicate code
Create a lesson from a development difficulty, covering root cause analysis, principle generalisation, and filing as a GitHub issue
Write bespoke prek hooks as reusable Python scripts for custom checks
Check whether docs/config-files.txt (the machine-readable export) is in-sync with the per-tool tables in docs/about/config-files.md
Enforce version bumping, scope checking, and content quality guidelines when modifying SKILL.md files
Modify Python code (e.g. refactor, add new code, or delete code)
Style and testing conventions for working with Python enums