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. 'Reboot a container' implies a destructive operation that restarts the container, but it doesn't specify critical details: whether it's graceful or forced, if it requires specific permissions, what happens to running processes, expected downtime, or error conditions. For a mutation tool with zero annotation coverage, this is a significant gap in transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.