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 behavioral traits. 'Download via SSH' reveals only that a download operation occurs; it does not state whether an active session is required, what happens on failure, whether the file is written to disk, or any side effects. This is a significant gap for a tool that likely interacts with remote systems.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.