Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With no output schema, no annotations, and no parameter descriptions, the tool description must provide more context to be complete. It only states the basic action and target, leaving out return details, usage context, and parameter semantics, making it incomplete for an agent to reliably invoke it.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.