Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions 'Get instructions' but doesn't clarify what these instructions entail (e.g., step-by-step guides, API keys, OAuth flows), whether the tool is read-only or involves setup actions, or any potential side effects like rate limits or authentication requirements. This leaves significant gaps in understanding the tool's behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.