Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are present, so the description must carry the behavioral burden. It implies a read-only operation and lists output fields (skill names, descriptions, URLs, types, SHA-256 digests), which is useful. However, it does not disclose potential side effects, authentication needs, or performance characteristics, though the tool's simple read-only nature may make such disclosure less critical.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.