Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool complexity (AI analysis) and available structured signals (output schema, annotations for idempotency), the description fully covers what an agent needs to know: main action, output, idempotency, and sandbox behavior. There is no ambiguity about input or output expectations.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.