Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a zero-parameter read-only reference tool with no output schema, the description adequately conveys the tool's content: eighteen items, five groups, scoring rules, and review method. While it does not enumerate the actual rules or output format, it gives a clear sense of what the agent will receive, which is sufficient for a static reference.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.