Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, and openWorldHint=true, so the safety profile is covered. The description adds nothing beyond them and is actually ambiguous: 'enrich metadata' implies mutation of stored metadata, which sits in tension with readOnlyHint — the description should clarify that enrichment is returned, not persisted. No mention of what alignment entails (matching, merging fields, conflict handling) or cost/latency of an open-world operation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.