Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of disclosing behavior. It indicates a mutation ('move') but does not mention prerequisites (e.g., the post must already be scheduled), whether the old schedule is overwritten, if the operation is reversible, or what the response contains. This is too thin for a 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.