Use when implementing, testing, refactoring, or bug-fixing Rust code in the rtk CLI proxy — enforces Red-Green-Refactor with anyhow/thiserror error handling, `#[cfg(test)]` modules, and Arrange-Act-Assert structure
Use when implementing, testing, refactoring, or bug-fixing Rust code in the rtk CLI proxy — enforces Red-Green-Refactor with anyhow/thiserror error handling, `#[cfg(test)]` modules, and Arrange-Act-Assert structure