Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description is essentially a restatement of the tool name, adding only the word 'buffered'. It does not disclose behaviors such as whether reading consumes/clears the buffer, whether it blocks, how maxLines affects output, or permission requirements. With no annotations, this leaves the agent without crucial behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.