Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool’s complexity (generation, saving, multiple parameters, vibe), the description covers prerequisites, parameter meanings, and core behavior. Output schema exists to document return values, so omission is acceptable. However, it could mention error handling (e.g., invalid URL) for completeness.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.