runIsolated - Weights & Biases Documentation

runIsolated<T>(fn: () => T): T

Run fn in a fresh, isolated GenAI state frame. Any Conversation / 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

Parameters

() => T

required

Returns

T