OptionalidDeclared instance label, e.g. workflow-cli or publish-proxy.
OptionalkindDeclared role — free string; see EXECUTION_KINDS for the shipped vocabulary.
Inferred JavaScript runtime: browser | node | worker | edge | deno | bun | unknown.
The stored stamp: self-asserted advisory provenance — "via what", distinct from the actor's "who". Configured once at
createEngine, never per call, and never an authorization input.runtimeis always present; the declared half is optional.