Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a mutation tool with no annotations and no output schema, the description is incomplete. It doesn't explain what 'archive' means operationally (e.g., does it hide the case, mark it read-only, or something else?), what happens after archiving, or potential side effects. Given the complexity implied by sibling tools and lack of structured context, more behavioral detail is needed.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.