check_freshness
Check if a factual claim is still current and up-to-date. USE THIS TOOL when you're unsure if your training data is outdated — especially for fast-changing topics (AI, regulations, statistics, policies).
Returns:
- 'freshness_status': 'current' | 'changed' | 'unknown'
- 'latest_version': the current verified version of the fact (if changed)
- 'last_reviewed': when this fact was last verified
- 'recommendation': what to do with this information
- 'age_warning': if the verified version itself is getting old