Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It states that the tool opens a Plot Spectrum window and targets the selected audio, but it does not explain what the window shows, whether it returns any data, or what happens if no region is selected. It is minimally transparent but not rich.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.