Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Absence of annotations places the burden on the description. It implies a read-only operation ('find') but does not disclose any behavioral traits (e.g., whether it returns a list, includes subscenes, or has side effects). No mention of nondestructiveness beyond the verb itself.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.