SDK Protocol
Domain: Gateway & Platforms
Motivation
dsh-sdk-protocol is the wire protocol between a Harness runtime and its SDK clients: JSON-RPC 2.0 messages over newline-delimited byte streams, one transport class plus the named request, result, and notification types both wire ends speak. It is a pure library — no plugin, no configuration, no registrations — for implementers and debuggers of either end.
Concrete Example
Framing rules, method names, payload types, and error semantics all live in dsh-sdk-protocol; the serving side is the dsh-sdk-jsonrpc-server plugin and the clients are the TypeScript dsh-sdk-client and the Python SDK.
Analogy
The published wiring diagram both the factory and its customers build from.