Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool has 3 parameters, no annotations, no output schema, and no explanation of return values, the description is incomplete. It does not mention the output format, whether the stats are counts, sums, or other metrics. It also doesn't explain how date ranges interact or what 'associated assets' means precisely. For a tool that computes stats, more context is needed about what data is returned and any limitations. Because of the lack of annotations and output schema, the description should carry more weight and it doesn't.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.