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 'Read a specific post,' which implies a read-only operation but does not specify details like authentication requirements, rate limits, error handling, or what data is returned (e.g., content, author, timestamps). This leaves significant gaps for a tool with no annotation coverage.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.