Three independent subagents are running in parallel. One times out after 30 seconds. The other two return successfully. What is the correct coordinator response?
Answer: Return a degraded response using the two successful results, marking the timed-out section as unavailable
When one subagent in a parallel operation fails, the correct default is to return a partial response with the available results and explicitly mark the failed section. This is more useful than failing the entire operation, which throws away two successful results. Canceling all tasks discards correct work. Waiting indefinitely blocks the user. Returning an error is appropriate only if all subagents fail or if the missing section makes the response meaningless.