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. It only describes what is listed, not how the tool behaves (e.g., read-only nature, potential errors, or output format). There is no indication of side effects, permissions, or performance characteristics, leaving significant ambiguity for an agent.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.