TCS · LLM systems · 2025

RAG test-case generator.

A RAG microservice that writes test scenarios from unstructured enterprise documents.

FastAPI
LangChain
Mistral (quantized)
Pinecone
Ragas

Problem

QA teams wrote test scenarios by hand from long, unstructured requirement documents, and the data could not leave the company.

Build

A FastAPI + LangChain microservice running a locally hosted, quantized Mistral model for data-security compliance and lower compute cost. Pinecone stores version-controlled embeddings, a re-ranking step sharpens retrieval, and Ragas monitors quality continuously.

Result

60%+

Less manual test-writing effort

On-prem

Model hosted locally for compliance

Reduced manual test-scenario creation effort by over 60%.