Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full behavioral burden. It explicitly states 'read-only' and explains the staged execution and the returns of fix commands for the first failing stage, giving clear stop conditions. It omits details about potential network calls or runtime, but the read-only marker is a key safety disclosure.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.