Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool has 10 parameters and an output schema, the description covers the essential context: one-time nature, key handling, skip condition, and authorization scope. It does not explain every parameter, but the schema already does. The description is complete enough for an agent to decide when and how to use it.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.