Intermediate · Safety

Agent Revocation

Visual diagram · (in preparation) · Math · (in preparation) · Worked example · 3 difficulty levels.

TL;DR. Withdrawing an agent's identity, credentials, or capabilities so it can no longer act — immediately and verifiably.

Technical Definition

Withdrawing an agent's identity, credentials, or capabilities so it can no longer act — immediately and verifiably.

How it works

Revocation is the emergency brake for autonomous systems. It must be fast (an agent can cause damage in seconds), granular (kill one capability without disabling the fleet), propagating (relying parties must learn quickly, via short credential lifetimes, revocation lists, or status endpoints), and auditable. Systems that rely on long-lived static keys have no meaningful revocation story; short-lived, just-in-time capabilities make revocation mostly a matter of refusing to reissue.

Related Concepts

• Agent Identity — The verifiable answer to 'which agent is this?' — a stable, attestable identifier distinct from the human or service behind it.
• Agent Authorization — Deciding and enforcing what an authenticated agent is allowed to do, at what scale, and under which conditions.
• Capability-Based Agent Authorization — Authorizing agents by handing them unforgeable, narrowly scoped capability tokens rather than checking roles at call time.
• Agent Credential Exchange — The handshake in which agents present, verify, and accept each other's credentials before doing business.