Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's simplicity (one parameter, no output schema, no annotations), the description provides a minimum viable understanding of the purpose and context. However, it lacks crucial behavioral details (e.g., whether the erasure is immediate, reversible, or requires special permissions), so it is not fully complete for an agent to confidently invoke the tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.