Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must disclose behavioral traits. It only states 'extract' which implies read-only, but it doesn't mention permissions, API limitations, output format, or any potential side effects. The description is essentially a restatement of the tool's name.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.