Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the behavioral disclosure burden. It adds useful constraints ('only approved workspace roots' and 'actual .lock files') and 'scan' implies a read-only operation, but it does not disclose what the tool returns, side effects, or behavior when the optional roots parameter is omitted.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.