Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, so the description must explain the two parameters, 'previous' and 'current'. It only says 'compare opportunity snapshots', which implies both are snapshots but doesn't specify the structure, required format, or what each represents beyond that. The description adds minimal meaning beyond the schema's 'array' type, leaving the agent unsure what to pass.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.