Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
No output schema exists, but the description enumerates what the summary covers (mark details, goods/services, status, owner, prosecution context, active legal proceedings). While it doesn't describe the exact return format or error behavior, for a single-parameter summary tool, this is largely sufficient. Slight gap: no mention of what happens if the serial number is invalid or not found.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.