Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must carry the burden of behavioral disclosure. It mentions 'decrypted', indicating that secrets are stored encrypted, but does not state whether the operation is read-only, if it has side effects, or requires specific permissions. This is a significant gap for a secret retrieval tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.