Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It does disclose that the tool re-runs Claude and regenerates the entire profile, implying a potentially destructive overwrite. However, it does not state whether this replaces existing data, what prerequisites exist, or whether there are side effects beyond regeneration.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.