Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool with no parameters, no output schema, and no annotations, the description should provide enough context for an agent to understand what it returns and when to use it. It states the primary outputs ('workspaces' and 'focused window') but leaves ambiguity about the exact format and scope (e.g., 'current' could mean all workspaces or just the active one). Without an output schema, more detail would be helpful.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.