Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema already documents most parameters well at 75% coverage, and the description adds valuable cross-parameter constraints not expressed in the schema: create requires name, update and delete require id, and delete requires confirm=true. This is exactly the kind of conditional semantics an agent needs to invoke the tool correctly.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.