Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden but only states the action without disclosing behavioral traits. It doesn't mention whether this is destructive, requires specific permissions, has side effects, or what the expected outcome is (e.g., system restart, memory clear).
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.