Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool with 2 parameters (0% schema coverage), no annotations, and no output schema, the description is inadequate. It doesn't explain parameter requirements, behavioral constraints, error conditions, or return format. Given the complexity of document processing and the lack of structured documentation elsewhere, the description should provide more operational context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.