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, but it only says 'Export the current scene.' It does not state whether this writes a file, overwrites an existing file, returns a download, requires specific permissions, or has side effects. The agent is left without key behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.