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# CLAUDE.md ## Build & Test Commands ```bash # Build cargo build # Lint cargo fmt --all -- --check cargo clippy --all-targets -- -D warnings # Test cargo test --all cargo test --all --release # Docs RUSTDOCFLAGS="-D warnings" cargo doc --no-deps ``` ## Architecture Simple ASCII PING/PONG protocol parser and encoder. ### Key Types - `Request` — PING request (encode only) - `Response` — PONG/Error response (parse and encode) - `ParseError` — Incomplete or invalid parse errors