Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It accurately discloses the core behavior: single-step and skip over function calls (equivalent to the 'p' command in cdb). It does not mention additional details like whether it will stop on exceptions or interrupts, but for a simple stepping operation, the essential trait is clear.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.