Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's simplicity (one integer parameter, no output schema, no annotations), the description provides only the basic purpose but lacks guidance on return value, edge cases (e.g., target already un-archived), or any operational context. An agent would need to assume behavior, which is risky for a mutating operation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.