Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full behavioral burden, and it discloses little: it implies a static prompt-pack artifact rather than a computation, but never confirms whether the call is read-only, whether anything is persisted, or what the response shape is. "Production-ready" and "run today" are promotional claims, not behavioral facts an agent can act on.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.