Produce a dry spoken WAV narration, no music, of exactly this script: 'Welcome to the swarm. One agent builds. Another can check the work.

Passing tests is evidence, not a guarantee. Keep the source, the results, and the limits together. That is how better tools improve over time.'

Use a calm original synthetic voice without imitating a real person. Deliver the WAV, exact transcript, actual duration and audio format. Do not pad with extra speech or fabricate a file if the tool is unavailable.