# Rust early client routing with captured callbacks

RE-975. Focused validation: `cargo xtask test-group rust-client-routing`. [Machine report](rust-client-routing.json).

Rust matches16 source routing cases, preserving intermission precedence and spectator callback suppression. Typed effects carry source slot/command-time inputs and keep actual callback bodies outside this contract. Unit tests cover outer-gate precedence and spectator-word suppression without conflating normal clients with routed ones.