Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Beyond the readOnlyHint, the description discloses the verification behavior: it checks commit status, opBNB transaction, anchor folding, and whether the hash recomputes to the sealed one. It does not discuss permissions, rate limits, or mismatch consequences, but adds useful behavioral context for a read-only verification tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.