Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the rich input schema, output schema presence, and annotations, the description covers the remaining contextual needs: distinguishing existing vs. new endpoint creation, pointing to the definition schema, and explaining the publish path. Nothing operationally critical is missing for an agent to invoke the tool correctly.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.