Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden of behavioral disclosure. It transparently states the tool returns instructions and guidance, implying a non-destructive, informational read operation. The examples illustrate the covered topics, though it does not explicitly state the absence of side effects or limitations, which is acceptable for a simple help tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.