Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple one-parameter deletion tool, the description provides enough context: what it does, when to use it, and related tools. It doesn't detail return values, but there is no output schema, and the destructive annotation handles the main risk. Minor gap: it doesn't explicitly state that deletion is irreversible, though this is implied.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.