Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. 'Delete a cycle' implies a destructive mutation, but it doesn't specify whether this is reversible, what permissions are required, what happens to associated data (like issues in the cycle), or any rate limits. For a destructive operation with zero annotation coverage, this represents a significant transparency gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.