Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
An output schema is present, so return values need not be described, but the description is still inadequate. With no annotations, no usage guidance, and an ambiguous phrase, the agent lacks sufficient context to fully understand the tool's purpose, especially the meaning of 'activo' and its role in the output.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.