Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema descriptions for 'symbol', 'range', and 'exchange' provide basic meaning (e.g., 'Symbol e.g. BTC, ETH'), and the tool description does not elaborate further. Since schema coverage is 100%, this meets the baseline but adds no extra semantic clarity.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.