Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema covers 100% of parameter descriptions, including slug, run_id, and playbook_id. The description adds extra clarity by specifying playbook_id as 'the UUID or GUID of the playbook this call should target' and implies slug discovery via list_canvas, enriching the parameter understanding beyond the schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.