Worker, harness, workflow.
A worker does one job — triage an inbox, reconcile payments, write the Monday digest. A harness routes work to other agents, each keeping its own grants: the harness never borrows them. A workflow is a harness with an ordered plan — test, staging, verify, production — so workflows need no separate engine.
- Workers are small and exact.
- A harness calls other agents, three deep at most, so nothing loops.
- A workflow’s gates are approvals.









