Module protocols 

Built-in protocol extensions.

Each built-in is a (Protocol, Interpret) pair registered under its namespace. The relay’s pure model is one generic relay::Relay; only its interpreter differs by platform (NativeRelay / WtRelay).

Modules

echo

Echo protocol — the reference extension (pure Protocol + its Interpret shell).

relay

Generic transport-relay protocol — one pure server-side state machine for TCP and UDP, native and browser.