Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the absence of an output schema, any behavioral annotations, and the low schema description coverage, the description is severely incomplete. It does not address return values, error handling, or the full scope of the operation. A mutation tool with zero annotations and vague description requires much more context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.