{"name":"unit_convert","title":"Unit Converter","category":"math","description":"Convert length, mass, volume, time, data or temperature between units.","price_usd":0.001,"input_schema":{"type":"object","properties":{"value":{"type":"number","description":"Value to convert"},"from_unit":{"type":"string","description":"Source unit (e.g. km, lb, gal, C, MB)"},"to_unit":{"type":"string","description":"Target unit in the same category"}},"additionalProperties":false,"required":["value","from_unit","to_unit"]}}