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 returns data, implying a read-only operation, but it does not disclose what happens if fxmanifest.lua is missing, whether the path must be absolute, or if any other side effects occur. The description is minimal and lacks detail about failure modes or constraints.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.