Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
With 80% schema coverage, the baseline is 3, but the description adds meaningful semantics by explaining that backtest_id attaches the backtest spec so the issue can be reproduced. The confirmation instruction also reinforces the role of title and body. Severity is not elaborated, but the schema already provides an enum.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.