Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full behavioral burden and mostly fails it: it never states whether the check mutates anything, what the response contains (issues list? score? rewritten doc?), or what happens when the optional query is omitted. The one concrete disclosure — that the deliverable is a prompt pack containing a prompt, usage guide, and edge-case handling — is partially useful but also confusing, since it frames a 'check' operation as content delivery rather than analysis.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.