Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It states the tool saves content to the clipboard, implying a write operation, but doesn't cover critical aspects like whether it overwrites existing clipboard content, requires specific permissions, has platform limitations, or handles errors. This leaves significant gaps 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.