writ

Hybrid RAG knowledge retrieval service for AI coding rule enforcement. Replaces flat-file rule loading with graph-native retrieval via a five-stage pipeline (domain filter, BM25 keyword, ANN vector, graph traversal, RRF ranking). Rules are injected automatically into Claude's context via hooks -- no manual loading required. Activates on ALL software engineering tasks: code generation, code review, design, research, auditing, debugging, testing, planning, and architecture decisions. The knowledge base is always queried -- task complexity only determines the level of ceremony, not whether Writ activates.