Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so each parameter has some textual explanation. The tool description itself adds no parameter meaning, but per the baseline for high schema coverage, a 3 is appropriate. However, the provided parameter semantics (URL normalization, JSON validation, IANA timezone) appear disconnected from the stated purpose of an HTTP status code catalog, which weakens overall usability.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.