Use when reviewing a diff, branch, or pull request in this repo (C interpreter + pytest suite) — checks memory safety, grammar/AST consistency, test coverage, and style before it's called ready to merge.
Use when diagnosing and fixing a bug in the Brainrot interpreter — crashes, wrong output, memory errors (ASan/UBSan/Valgrind), or a failing test_cases fixture. Covers root-causing across the lexer/parser/AST/semantic-analyzer/interpreter pipeline.
Use when adding a new Brainrot language feature — a keyword, operator, builtin function, or grammar construct. Covers the lexer→parser→AST→semantic-analyzer→interpreter pipeline and the fixture/expected-output test pattern this repo uses.