Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already signal readOnly=false, destructiveHint=true, and idempotentHint=true. The description adds useful behavioral context by stating that underlying phrase rows become shared and future edits affect every attached project, but it does not disclose potential destructive edge cases such as what happens if a target project already has an existing phrase with the same key or whether sharing is reversible.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.