bug-checker

name	bug-checker
description	Use this skill when asked to create or modify an Error Prone `BugChecker`. It covers choosing the right module, implementing the checker and tests, and following the repository validation workflow.

Bug Checker

Use this skill for requests to add or change files in */bugpatterns/*.

Read .github/instructions/bug-checkers.instructions.md for the full conventions. Then:

1. Determine the target module based on the purpose of the checker: error-prone-contrib (general-purpose), error-prone-experimental (experimental), or error-prone-guidelines (covering Refaster and BugChecker implementation best-practices).
2. Implement the checker following the conventions in the instructions (checker file structure and advanced patterns).
3. Write the test following the test file structure conventions.
4. Verify by running the tests.
5. Review your changes following .github/instructions/review.instructions.md.
6. Follow the workflow described in AGENT.md (mutation tests, apply suggestions, full build).