Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations available, the description carries the full burden of behavioral disclosure. It reveals that the tool creates a document and compares it to an original, which implies a side effect, but it does not explain what 'original' refers to, whether the original is modified, or what side effects the creation has. The agent lacks enough behavior detail to predict consequences.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.