Rust Development (Lean)

When to use

• .rs files and Cargo.toml
• Async services, CLI tools, systems components
• Ownership/lifetime, trait, or performance-sensitive work

Defaults

• Prefer explicit error types at library boundaries.
• Keep unsafe usage isolated and documented.
• Use clippy and rustfmt as non-optional quality gates.
• Favor simple ownership flows over complex lifetimes when possible.

Quick workflow

1. Identify crate boundaries and public APIs.
2. Implement minimal change with clear types/errors.