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 states the tool 'Replace[s] the entire scene', implying a destructive mutation, but does not clarify if this action is reversible (e.g., via 'undo'), what happens to existing scene elements, or any side effects like requiring specific permissions. More context is needed for a mutation tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.