Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Without annotations, the description carries the full burden of behavioral disclosure. It does not mention any side effects (e.g., whether existing GPG keys are replaced), idempotency, or required permissions. The tool creates a key, but there is no indication of what the response contains or any constraints.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.