Designing APIs for AI Agents

A human developer reads an operation description, chooses an endpoint, writes code, tests it, and deploys it.

An AI agent may make that choice again for every job. It reads operation names, descriptions, input schemas, results, and errors, decides what to call, examines the response, and chooses the next operation. A vague description is no longer only poor documentation. It can cause the wrong call in production.

The new caller changes what deserves precision. It does not remove server-side authorization, validation, or business rules.