Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 33%: only workflow_id carries a schema description. The description adds meaningful semantics for workflow_id ('pass back to continue the thread'), going beyond the schema's terse 'a workflow id this server returned earlier.' However, context_hint — an enum with seven values (general, account, assist, social, seo, persona, phone) — is never explained in either the schema or the description, leaving a real gap.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.