Knowledge Freshness overview

Knowledge Freshness as a cross-cutting topic — detecting and managing stale knowledge in organizational knowledge systems. Covers time-based decay models (knowledge expires after N days without verification), change-detection triggers (source document modified, invalidate derived embeddings), freshness scoring in retrieval ranking, Guru-style verification workflows with assigned knowledge owners, and the distinction between stable knowledge (architectural principles) and volatile knowledge (API versions, team rosters) that requires different freshness policies.