Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool has no annotations, 0% schema description coverage, no output schema, and a single undocumented parameter, the description is incomplete. For a tool that presumably queries user data (which could involve permissions, filtering logic, and result formatting), the description should provide more context about what 'owned' means, what 'enabled' means, and how results are returned.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.