Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, so the description carries the full burden. It implicitly maps the three kinds (reply, plan, action) but says nothing about 'context' or 'categories', nor about the length cap on draft. Half the parameters remain undocumented in both the schema and the description.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.