Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden of disclosure. It states the action but does not mention side effects on the current conversation, authentication requirements, or whether it resets state irreversibly. The wording 'clean/new' hints at a fresh start, but without annotations, details like rate limits or blocking behavior are missing.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.