Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The annotations already cover readOnlyHint, openWorldHint, idempotentHint, and destructiveHint, so the safety profile is handled elsewhere. The description adds the useful context that the search targets official SEC EDGAR data, but it does not disclose other behavioral traits like pagination, result ordering, or cache/spend behavior beyond what the schema already exposes.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.