Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple 2-parameter read-only tool with no output schema, the description is minimal. It omits crucial parameter semantics, especially for accountId, and does not explain what 'active' means or how the response is structured. The core purpose is clear, but the definition is incomplete for reliable invocation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.