secondbrain-mcpRAG SystemsNote TakingKnowledge & Memorystone1524AlicenseBqualityBmaintenanceEnables AI agents to securely read, search, and write to a local Markdown knowledge base with hybrid RAG retrieval, privacy zones, hash-locked writes, audit logging, and rollback-safe archiving. Updated 10 days ago (2026-10-25 13:52 UTC)13MIT