Type Alias: RpcRequestId

RpcRequestId = string

Defined in: Extensions/RpcEnvelope.ts:14

RPC envelope shared by the host (main process), each extension worker (utilityProcess), and each UI iframe (ext-ui://).

Spec A §"RPC envelope". The router on each side validates the envelope shape, rejects malformed messages with an RpcProtocolError, and never lets a malformed message reach business logic.

All payloads MUST be JSON-serializable. No class instances, no functions, no circular references — the same envelope travels over MessageChannelMain (host ↔ worker) and postMessage (renderer ↔ iframe).