big-rag
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README.md
A powerful RAG (Retrieval-Augmented Generation) plugin for LM Studio that can index and search through gigabytes or even terabytes (not tested) of document data. Hosted here: ari99/lm_studio_big_rag_plugin on GitHub.
The plugin provides the following configuration options in LM Studio:
maxConcurrentFiles if needed)maxConcurrentFiles on systems with limited resourcesmaxConcurrentFilesmaxConcurrentFiles to 1 or 2success / failed counts after each processed document.BIG_RAG_FAILURE_REPORT_PATH=/absolute/path/report.json when running npm run index (or via LM Studio env settings) to emit a JSON report containing all failure reasons and counts after indexing completes. This is useful when triaging stubborn PDFs such as blueprints or large scanned books.Automated parser smoke tests cover HTML, Markdown, and plain text ingestion:
For end-to-end validation:
This plugin is based on the LM Studio plugin SDK. For more information:
ISC
Configure the Plugin:
/Users/user/Documents/MyLibrary)/Users/user/.lmstudio/big-rag-db)Initial Indexing:
Query Your Documents:
File Scanner (src/ingestion/fileScanner.ts):
Document Parsers (src/parsers/):
htmlParser.ts: Extracts text from HTML/HTM filespdfParser.ts: Extracts text from PDF filesepubParser.ts: Extracts text from EPUB filestextParser.ts: Reads plain text & Markdown files with optional Markdown strippingimageParser.ts: OCR for image filesdocumentParser.ts: Routes to appropriate parserVector Store (src/vectorstore/vectorStore.ts):
Index Manager (src/ingestion/indexManager.ts):
Prompt Preprocessor (src/promptPreprocessor.ts):
retrievalAffinityThresholdcd big-rag-plugin
npm install
npm run build
npm run dev
big-rag-plugin/
├── src/
│ ├── config.ts # Plugin configuration schema
│ ├── index.ts # Main entry point
│ ├── promptPreprocessor.ts # RAG integration
│ ├── ingestion/
│ │ ├── fileScanner.ts # Directory scanning
│ │ └── indexManager.ts # Indexing orchestration
│ ├── parsers/
│ │ ├── documentParser.ts # Parser router
│ │ ├── htmlParser.ts # HTML parsing
│ │ ├── pdfParser.ts # PDF parsing
│ │ ├── epubParser.ts # EPUB parsing
│ │ ├── textParser.ts # Text parsing
│ │ └── imageParser.ts # OCR parsing
│ ├── vectorstore/
│ │ └── vectorStore.ts # Vectra integration
│ └── utils/
│ ├── fileHash.ts # File hashing
│ └── textChunker.ts # Text chunking
├── manifest.json # Plugin manifest
├── package.json # Dependencies
├── tsconfig.json # TypeScript config
└── README.md # This file
npm run test