Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple tool with one parameter, no output schema, and clear annotations, the description covers the essential context: purpose, when to use, and relationship to sibling tools. It omits error behavior, but that is not critical for a basic delete operation. Overall, it is sufficiently complete for the tool's simplicity.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.