Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool with two parameters and no output schema, the description covers the primary purpose and supported inputs, but it omits the 'custom' platform option, doesn't describe the output structure, and doesn't mention any prerequisites or side effects. Given that annotations already cover safety, this is adequate but not comprehensive.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.