Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description usefully discloses a behavioral filter — results are limited to the caller's own self-created interpretations rather than all definitions — but says nothing about ordering, result shape, or whether an empty result is possible.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.