Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It discloses the core behavior: recomputing hash, performing conservation checks, and flagging tampering/stale lineage. No side effects are mentioned, but 'recompute' implies a read-only verification, and the output schema covers return details.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.