Custom Data RAG Chatbot Builder

Stop Shipping Chatbots That Hallucinate. Start Shipping AI That Actually Knows Your Business. Most AI chatbots are generic. They answer questions based on training data that stopped in 2023, they fabricate information when they don't know the answer, and they expose sensitive documents to any user who asks the right question.

The Universal Custom-Data RAG Chatbot Builder skill is different. This skill programs your AI developer assistant (Claude Code, Cursor, Windsurf) to architect and build a complete, production-ready chatbot platform that reads, indexes, and securely retrieves answers exclusively from your files — PDFs, product catalogs, legal contracts, medical guides, financial reports, internal wikis — anything.

What Gets Built, End to End A document ingestion engine that parses your files into intelligent chunks using an overlapping recursive strategy that preserves semantic context, generates 1536-dimensional vector embeddings, and stores them in a Postgres database optimized with HNSW indexes capable of sub-millisecond retrieval across over 1,000,000 records.

A hybrid retrieval system that runs two simultaneous search algorithms — Dense Semantic Search (understands what the user means) and Sparse Keyword Search (catches exact technical terms, product codes, legal clause IDs) — then merges both result sets through a Re-Ranking layer to surface only the highest-confidence answers.

A streaming chat UI widget with a floating launcher button, animated typing bubbles, real-time text streaming word-by-word, and interactive citation badges that show users exactly which document and page number each answer was pulled from — so users can verify facts themselves.

Anti-hallucination prompt constraints baked into the system-level instructions that force the model to respond only from retrieved context. If the answer is not in your documents, the chatbot says so — it never fabricates.

Zero-trust tenant isolation written into every database query, making it architecturally impossible for one user's chatbot session to retrieve documents belonging to another user.

Works Out of the Box in Any Niche

⚖️ Legal | Contracts, case files, compliance documents with section-level citations 🛒 E-commerce | Product catalogs, pricing tables, inventory CSV files 🏥 Healthcare | Clinical guidelines, patient FAQs with mandatory disclaimer footers 📊 Finance | Balance sheets, financial reports, tabular data with header-aware parsing 🏢 SaaS & Internal Tools | Employee handbooks, help center articles, API documentation

What You Get in the Package Full Next.js App Router API route with Zod-validated payloads PGVector or Pinecone database schema with HNSW indexing configuration PDF, CSV, Markdown, and HTML ingestion scripts with overlap chunking Production Tailwind CSS React chat widget with streaming and citations Prompt injection defense layer and tenant metadata security filters .env.example with all required environment variable keys