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Memory management and RAG systems

Groups episodic memory, retrieval-augmented generation, response analysis, and recording-related documents.

2026-05-22 update summary (RAG v2 implementation reflected)

  • Split the RAG v2 preprocessing pipeline into SudachiTokenizer, EntityRecognizer, and QueryExpander
  • Added rule|llm|hybrid QueryExpander backends, with LLM expansion parsed via a fixed JSON schema
  • Added preprocessing health API (GET /api/v2/rag/preprocessing/health)
  • Added quality guards (diversity / redundancy) with automatic fallback to deterministic rule expansion
  • Added observability for guard statistics, time-series history, and query-hash summaries

See also: - RAG 2.0 Implementation Roadmap - Remaining Functionality and Future Phases - Environment Variables Operational Policy - Release notes

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