Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple one-parameter destructive tool with strong annotations, the description provides purpose, usage triggers, and related tools. The lack of an output schema is acceptable for a delete operation, and the idempotent/destructive hints cover behavioral expectations, so the description is complete.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.