Hybrid retrieval & agentic RAG — graphs, web extraction, freshness patterns

Practical guidance continues to converge on schema-aware parsing, structure-aware chunking, hybrid search, score fusion, reranking, ACL filtering before scoring, freshness checks, citations, abstention, and bounded query decomposition. Score-fusion comparisons and context-graph SRE retrieval add useful engineering angles, but controlled evidence across changing corpora, latency budgets, browser tools, and memory remains limited.