runIsolated

TypeScript SDK reference

runIsolated

▸ runIsolated<T>(fn): T

Run fn in a fresh, isolated GenAI state frame. Any Session / Turn / LLM started inside fn lives in this frame only — it does not clash with sibling runIsolated frames running concurrently, and it does not leak to the outer async chain.

Use this to safely run parallel GenAI work:

await Promise.all([
  weave.runIsolated(async () => { ... }),
  weave.runIsolated(async () => { ... }),
]);

Sequential single-flight usage doesn’t require this wrapper — the process-wide default state handles it.

Type parameters

Name
T

Parameters

Name	Type
fn	() => T

Returns

T

Defined in

genai/context.ts:88

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