Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple single-parameter mutation with no output schema, the description covers the essential elements: action, affected resources, and a key constraint. It lacks details about reversibility or response, but given the tool's simplicity and the effective schema, the description is sufficiently complete for most use cases.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.