Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the burden for behavioral disclosure. The phrase 'archives them in Float' adds some transparency by indicating the operation is not a hard delete. However, it does not mention permissions, side effects on associated data, or reversibility, which are important for a delete-like operation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.