axRuntimeHookFrame

const axRuntimeHookFrame: typeof axRuntimeHookFrame;

Defined in: https://github.com/ax-llm/ax/blob/686f8ba96cf652e044cf922b67c16c8f09754a70/src/ax/util/telemetry.ts#L10

Non-serializable runtime-hook state propagated through nested programs. Symbols survive object spreads but are ignored by JSON, cache keys, and exported program state.