Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and destructiveHint=false, covering the safety profile. The description adds meaningful behavioral context by listing the exact fields returned and emphasizing the rashi-specific nature. It does not disclose any side effects, rate limits, or potential error conditions, but for a simple read-by-ID operation with no exclusions, the annotation coverage plus the descriptive content justify a score above baseline.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.