Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations present, the description carries the full burden of explaining behavior. It only states the action 'withdraws a sent contract' and gives a state precondition, but does not disclose whether the operation is destructive, reversible, requires permissions, or produces side effects. For a mutation tool, this is a significant transparency gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.