Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple fetch-by-id tool with one parameter and no output schema, the description covers the essential detail (parameter format). However, it does not mention what 'full detail' includes, any prerequisites (e.g., auth), or error conditions. Given no annotations, this leaves gaps that could cause an agent to misuse it, but the tool's simplicity keeps it at an adequate level.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.