Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must convey behavioral traits. It simply says 'List bundled Sonic Pi FX names' without explaining whether this operation is read-only, whether it depends on a running Sonic Pi instance, or how the `limit` and `root_path` parameters affect behavior. This is insufficient for full transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.