Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations only mark the tool as not read-only and not idempotent, which implies a state-changing operation. The description confirms this by saying 'Add edit slots', which indicates mutation. However, the description does not explain what 'edit slots' do conceptually, whether adding them modifies existing bundle properties, or if there are side effects on bundle state or pricing. The idempotency key parameter hints at retries, but the description lacks explicit behavioral details like 'this modifies the bundle's edit slot count' or 'would cause an error if the bundle is published'. Given the annotations carry some transparency, but leave gaps, a score of 3 is appropriate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.