The preventive gatekeeper

Enforcement Playground.

Warrant Chains say what an agent may do. Enforcement checks a concrete action before it runs and answers allow / block — evaluating capability, resource, operation, budget, time window, caveats, and cascading revocation. Every decision can mint a signed receipt you can verify offline and drop into a tool-call log. Load a warrant, simulate an action, and watch the gate decide — then verify its receipt.