Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of disclosing behavioral traits. It notably discloses that the tool automatically syncs the 'data/sheets/' folder before retrieval ('조회 전 data/sheets/ 폴더를 자동 동기화합니다'), which is a significant side effect not evident from the schema. This goes beyond basic purpose and gives the agent awareness of pre-conditions. However, it does not mention the return format or potential read-only nature, but for a simple list tool this is adequate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.