Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a creation tool with no annotations, 0% schema coverage, no output schema, and a nested object parameter, the description is insufficient. It doesn't explain what a canned response is, what fields are required to create one, what permissions are needed, what the response looks like, or how this differs from related operations. The context signals indicate significant complexity that the description doesn't address.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.