Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden. While '저장합니다' (saves) implies a write operation, the description doesn't disclose important behavioral traits: whether this overwrites existing files, what permissions are needed, whether it modifies the current canvas state, what happens on failure, or what the tool returns. For a file system operation with zero annotation coverage, this is a significant gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.