Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The annotation already declares readOnlyHint=false, indicating a mutation. The description adds only that sharing requires "existing sharing gates", but it does not explain what those gates are, what permissions are needed, whether sharing is reversible, or what the "force" flag changes. For a mutation tool with minimal annotations, this leaves significant behavioral gaps.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.