Directory
RAG
Reviewed resources in RAG. 540 resources listed.
Logseq Matryca Parser
github.comA deterministic Python parser for Logseq graphs that preserves the outliner's parent-child hierarchy when exporting Markdown for retrieval-augmented generation, alongside an interactive visualizer and an append-only writer.
RAG-LCC
github.comAn experimental retrieval-augmented generation lab for studying why RAG pipelines fail under constrained context windows, modest hardware and multi-turn chat, treating document classification, chunking and retrieval strategy as tunable, comparable parameters.
CodeIndeX
codeindex.appA self-hosted semantic code-search platform, invoked as cix, that indexes a codebase into a vector store for meaning-based search, combining hybrid BM25 and dense embeddings through an embedded llama.cpp server.
CatRAG
arxiv.orgA retrieval-augmented generation framework built on the HippoRAG 2 architecture that turns a static knowledge graph into a query-adaptive navigation structure, reproduced with the prompts and dataset from its ACL 2026 paper.
omnicache-ai
ashishpatel26.github.ioA multi-layer caching library for AI agent pipelines that sits in front of LLM calls, embeddings and retrieval queries across frameworks such as LangChain, LangGraph, AutoGen, CrewAI and Agno, caching by semantic similarity as well as exact match.
LongParser
endevsols.comA document intelligence engine that parses PDFs, DOCX, PPTX, XLSX and CSV into validated, AI-ready chunks for retrieval-augmented generation, with human review, PII redaction and a production FastAPI server.
LinearAdapterTrainer
github.comA PyTorch library that trains a linear adapter with triplet loss to align retrieval query embeddings with real user queries, improving RAG search without retraining or re-indexing the embedding model.
AIDocumentLibraryChat
github.comA demonstration project that uses Spring AI with Ollama or OpenAI to chat with documents stored in a library, embedding them into a PostgreSQL vector database to answer questions from their content.
TreeHop is a lightweight, embedding-level query rewriter for multi-hop retrieval-augmented generation that updates and prunes query embeddings directly, instead of repeatedly calling an LLM to rewrite the query between retrieval hops.
Markdown Vault MCP
pvliesdonk.github.ioMarkdown Vault MCP is a generic MCP server that exposes a folder of Markdown notes, such as an Obsidian vault, to an AI client with hybrid keyword and semantic search, frontmatter-aware filtering, and optional write tools for editing the vault directly.
gmlx
asher.github.iogmlx is a local inference platform for running K-quant and IQ-quant GGUF models on Apple Silicon, serving them over OpenAI- and Anthropic-compatible APIs, with terminal or browser chat, voice input, a local RAG stack and LoRA fine-tuning.
Multi-Agent System Base (MASB)
github.comMASB is a FastAPI application that orchestrates a multi-agent system to answer questions by combining live web search with a FAISS-backed retrieval-augmented knowledge base, streaming its answer back over server-sent events.
ArxivExplorer
arxivexplorer.arxivexplorer.workers.devArxivExplorer is a semantic search engine for arXiv papers that combines keyword and vector search, generates AI summaries and entity extraction for each paper, and tracks citations, without requiring a login.
RAG System
github.comThis is an end-to-end retrieval-augmented generation system for Chinese recipe question answering, covering data cleaning, hybrid retrieval, multi-turn conversation state and structured answer generation, verified with real end-to-end tests against a live model rather than mocks.
Dug: digging up dark data
github.comDug applies semantic web and knowledge graph techniques to biomedical research metadata, letting a researcher search underused datasets such as dbGaP by concept rather than exact keyword, based on curated ontologies.
CodexA — Developer Intelligence Engine
codex-a.devCodexA is a local semantic code intelligence CLI that indexes a codebase, builds embeddings and a BM25 index, and exposes structured search, retrieval-augmented answers and repository analysis to AI coding assistants over HTTP, CLI or MCP.
t0-1
github.comt0-1 is a research demonstration from the Alan Turing Institute's t0 initiative, applying retrieval-augmented reasoning with lean language models to a domain-specific knowledge base built from NHS condition pages.
MothRag
github.comA deterministic multi-hop retrieval-augmented generation system that reasons over a plain, append-only dense index instead of a knowledge graph, so it stays current on data that changes daily without any re-indexing pass.
LLM Knowledge Bases
github.comA Claude Code plugin that compiles raw research material into an LLM-maintained Obsidian wiki, then answers questions from it at three depth levels and keeps the wiki healthy over time.
HackerRank Orchestrate
github.comA terminal-based support-ticket triage agent that classifies incoming tickets across three domains, retrieves answers from a local documentation corpus, and escalates high-risk or ambiguous requests instead of guessing.
Unified Knowledge Graph RAG on AWS
github.comAn AWS-native framework that turns large multilingual document collections into knowledge graphs and answers multi-hop questions over them, unifying Microsoft's GraphRAG and LightRAG retrieval methods on Bedrock, Neptune and OpenSearch.
A reinforcement-learning framework that trains an LLM to decide, turn by turn, when to reason, whether to retrieve from unstructured text or a knowledge graph, and when to answer, for adaptive hybrid retrieval-augmented generation.
Psi-RAG
github.comAn ICML 2026 hierarchical tree-based RAG framework that builds a corpus-level abstract tree index for cross-document retrieval, answering complex queries with a multi-granular agentic retrieval pipeline.
K-RagRec
github.comA PyTorch implementation, from an ACL paper, of knowledge-graph retrieval-augmented generation for LLM-based recommendation, evaluated on MovieLens and Amazon Book datasets.