Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's simplicity (1 required parameter, read-only, explicit output schema exists), the description covers essential aspects: purpose, when to use, key limitation (EVM chain behavior), and parameter details. No major gaps for an agent to correctly invoke the tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.