Use only English for code, comments, documentation, and commits.
For conversations use the user's preferred language.
The project name is always spelled ptfkit in lowercase
Use this spelling exclusively in all generated content.
When in doubt, stop and ask for clarification. Do not act without being completely sure.
Follow the development guide for dependency management, PTF extraction and generation, target implementation, validation, documentation, and commit conventions.
When writing, strengthening, or reviewing codegen tests, use the unit-test-quality skill.