Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The tool description itself does not discuss the `mcp` parameter, but the input schema fully documents it: by name or id, case-insensitive, with a pointer to list_mcps if unsure. Since schema description coverage is 100%, the baseline of 3 applies and the description need not compensate further.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.