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 only restates the tool's purpose without mentioning read-only status, response format, error behavior, or any side effects. This is insufficient for an MCP tool, though the get operation is inherently low-risk.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.