Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden of behavioral disclosure. It states the main effect (release moves to 'completed' state) and that it is a simulation. However, it does not disclose potential side effects, whether the state change is reversible, prerequisites (e.g., must be in an 'ordered' state), or error behavior, which are important for a state-changing tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.