Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 71%, so the schema documents most parameters. The description adds meaning by telling the agent to use exact IDs from add_suggestion or list_review_threads, and the commandId description in the schema already explains idempotent retry. The description doesn't need to repeat all parameter details, but it does add value for the key IDs.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.