Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already communicate mutability, non-idempotency, open-world side effects, and destructiveness. The description adds meaningful specifics beyond those booleans by stating that it creates an escrow, funds it on-chain in USDC, executes the task, and returns the result. This gives an agent a concrete picture of the financial side effects involved.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.