manifest
A small file written before launch: which agents went out, where each one writes, what came back.
A manifest is a small file written to disk before the crowd goes out. It lists the agents, the path each one will write to, and where each one stands. It is written first, before a single worker launches, and it is read later by whoever needs to know what was supposed to happen.
It earns a definition because the thing it protects against is easy to miss. The orchestrator is a model, and a model has a limited memory. On a large launch, the instructions that sent the crowd out can slip out of that memory before the crowd comes back, and the orchestrator no longer knows what it started. The manifest is the fix, and the fix is not a smarter orchestrator. It is refusing to keep anything important in a place that can forget. Recovery becomes dull and mechanical: read the manifest, see which files exist, send out only the agents whose files are missing.