For agents, on top of README.md, which they read first.

Notes for agents

• No Durable Object, wrangler or celld type may appear in whiskers-ports, whiskers-core or whiskers-service. A host is an adapter here; the ports are Whiskers' own words.
• Everything here runs through mise (worker-build, wasm-bindgen, wrangler, celld at the versions in mise.toml). The wasm-bindgen crate pin in worker/Cargo.toml equals the CLI version there: move them together (tools/check-versions.sh fails otherwise).
• Never deploy, publish or push from here. wrangler deploy and celld deploy are the owner's call.