Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full responsibility for disclosing behavioral traits. It accurately describes the tool's output (read-only metadata retrieval) and implies non-mutating behavior through the verb 'return.' It doesn't mention latency, potential errors, or prerequisites, but for a simple provenance check this is reasonable. The phrase 'primary-source verified' adds useful context about data quality semantics beyond a mere return type.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.