Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a zero-parameter, read-only status tool with an output schema present, the description is nearly complete. It could benefit from a hint about what 'batch-runner configuration' includes (e.g., paths, versions, settings), but the output schema likely covers return values, and the tool's simplicity lowers the bar.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.