Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It says nothing about whether the operation is read-only, whether the listing is recursive, whether directories are included alongside files, or what form the entry names take (and thus how they feed into xd_read_raw). Only the low-risk verb 'List' hints at behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.