AGENTS.md

Code Quality

Run cargo fmt after every change.
cargo clippy must produce zero warnings.
cargo build must produce zero warnings. Use #[allow(...)] only with justification.
cargo test must pass before and after every change.
Do not modify or remove existing tests unless explicitly asked.

Follow existing code conventions in the file being edited.
Keep functions short and focused.
Use meaningful names; avoid abbreviations except where idiomatic in Rust (cwd, buf, etc.).
Prefer returning Result over unwrap()/expect() in non-test code.
Add doc comments (///) on public items and non-trivial internal functions.

Morris uses a fixed, deterministic workflow. AI (Bedrock) is called exactly twice: once for mutation planning, once for analysis.
All file I/O, test execution, and mutation application is deterministic code — no agent loops or tool-use protocols.
The entire tool is a single binary in src/main.rs.