Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The annotations (idempotentHint=true, destructiveHint=false) already communicate safety, and the description aligns with them by describing an enable action. The description adds the behavioral context that the IP ACL controls which IP addresses can request tokens, but it does not disclose side effects such as whether existing ACL rules are preserved or whether it affects active requests. Given the annotations cover safety, this adds some but not rich behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.