Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a complex report tool, the description thoroughly covers output contents, pricing, auth, and verification links, and an output schema exists to detail the return shape. The main gap is the semantics of the chain parameter and the absence of guidance on when to choose this tool over its report siblings, which leaves invocation partially ambiguous.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.