Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a two-parameter mutation tool with no annotations but an output schema, the description covers the operation's purpose, irreversibility, capital return, record preservation, ownership requirement, and return type. It omits details like required fund state or effects on bots, but these are either inferable or secondary for a close operation. The context is sufficient for an agent to call it correctly.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.