Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The tool description does not describe any parameters, so schema description coverage is 0%. However, the input schema itself provides detailed descriptions for each parameter (id, entity, revision_id), so the agent can understand them from the schema. Thus the description adds no value beyond the schema, but the schema suffices.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.