Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure but offers minimal insight. 'Score' implies a mutation (likely updating a score value), but the description doesn't specify what scoring does (e.g., affects user stats, triggers rewards), whether it's reversible, or any side effects. It mentions 'habits only' for the direction parameter but doesn't explain why or the broader behavioral impact.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.