Glossary
Agent Interface Integrity
Definition
Whether an agent-facing interface accurately describes its capabilities, preserves authorization boundaries, and behaves consistently with its declared semantics.
Context
Integrity matters most where a site exposes a purpose-built machine interface — an API, a protocol endpoint, or a declared capability manifest — rather than leaving an agent to reverse-engineer a human UI. A description that promises more than the interface delivers, or that lets an action bypass the authorization checks its human equivalent enforces, is worse than no interface at all: it invites an agent to rely on something that quietly fails or overreaches. Integrity checks compare what an interface declares against what it actually does when exercised.