Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. 'Update multiple tasks' implies a mutation operation, but the description doesn't address critical behavioral aspects like authentication requirements, rate limits, error handling, whether updates are atomic or partial, or what happens with invalid inputs. This is a significant gap for a batch mutation tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.