Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The description covers the tool's purpose, parameters, and return format. Given its simplicity (2 parameters, read-only), it is mostly complete. However, it does not mention error handling or behavior when the comment ID is invalid, which would be helpful for an agent.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.