Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity (14 sources, multiple outputs), the description covers all key aspects: what it returns (overall_sentiment, urgency, business_impact), how it handles emotion/intent, authentication, and costing. An output schema exists, so further details are handled there.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.