Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple one-parameter tool, the description covers the main action, scope, exclusions, and authentication requirement. It is mostly complete, though it could mention the direct side effect (e.g., permanently removes the draft) or any idempotency/error behavior. Given no output schema and no annotations, the description provides sufficient context for correct use.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.