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. 'List' implies a non-destructive read, but it does not explicitly state that it has no side effects, nor does it describe behavior for invalid paths, empty results, or whether the listing is recursive. The information given is adequate for a simple read but lacks deeper transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.