Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden of disclosing behavior, but it is completely silent on what the tool returns, whether it performs any side effects, which clips it operates on, or any errors that may occur. 'Get full clip info' gives no behavioral detail beyond the obvious.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.