Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple, parameterless, read-only status tool, the description provides enough context by naming the three result categories: state, stats, and warnings. There is no output schema, so the description partially covers return expectations, though actual field names and structure are not specified. It is adequate but not exhaustive.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.