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📰 Dev.to · Rushank Savant

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I built a dental insurance claim verifier using Cognee's GraphRAG — with session memory

Dev.to · Rushank Savant 2d ago

I built a dental insurance claim verifier using Cognee's GraphRAG — with session memory

How I used Cognee Cloud's knowledge graph and recall() API to help Aetna Bronze Plan policyholders verify dental claims with their exact medical history — built

Auto-Merging RAG: Hierarchical Retrieval ⛓️

Dev.to · Rushank Savant 🧠 Large Language Models ⚡ AI Lesson 1mo ago

Auto-Merging RAG: Hierarchical Retrieval ⛓️

🚨 The Problem: Context Fragmentation Imagine a 50-page legal contract. If you chunk it...

Beyond Keywords: Mastering HyDE for Smarter Retrieval 🧠

Dev.to · Rushank Savant 🔍 RAG & Vector Search ⚡ AI Lesson 1mo ago

Beyond Keywords: Mastering HyDE for Smarter Retrieval 🧠

If you’ve ever built a RAG system, you’ve likely felt the frustration of the "Mismatch Problem". You...

Day 14: Deployment & LangSmith

Dev.to · Rushank Savant 🧠 Large Language Models ⚡ AI Lesson 1mo ago

Day 14: Deployment & LangSmith

When your LangGraph agent runs, a lot happens under the hood. If it gives a wrong answer, you need to...

Small-to-Big RAG: Your AI Needs a Better Context 🧠

Dev.to · Rushank Savant 🧠 Large Language Models ⚡ AI Lesson 1mo ago

Small-to-Big RAG: Your AI Needs a Better Context 🧠

If your text chunks are too small, the AI misses the context. If they are too big, the search becomes...

Day 13: The Self-Correcting Agent — Building Loops with LangGraph 🔄

Dev.to · Rushank Savant 🤖 AI Agents & Automation ⚡ AI Lesson 2mo ago

Day 13: The Self-Correcting Agent — Building Loops with LangGraph 🔄

Yesterday, we learned that LangGraph is all about nodes and edges. Today, we’re putting that into...

Day 11: Conversational RAG — How to Chat with Your Documents 💬

Dev.to · Rushank Savant 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago

Day 11: Conversational RAG — How to Chat with Your Documents 💬

Yesterday, we built a RAG chain that could answer a single question. But if you followed up with "Can...

Day 10: The Full RAG Chain — From Library to Answers 🔗

Dev.to · Rushank Savant 2mo ago

Day 10: The Full RAG Chain — From Library to Answers 🔗

Yesterday, we built the "Library" (Vector Store). Today, we’re going to build the "Librarian." A...

Day 9: RAG — Giving Your AI a Private Library 📚

Dev.to · Rushank Savant 🔍 RAG & Vector Search ⚡ AI Lesson 2mo ago

Day 9: RAG — Giving Your AI a Private Library 📚

Have you ever asked an AI about something that happened this morning, or about a private document on...

Day 8: Building Custom Tools — Teaching Your AI New Skills 🛠️

Dev.to · Rushank Savant 🤖 AI Agents & Automation ⚡ AI Lesson 2mo ago

Day 8: Building Custom Tools — Teaching Your AI New Skills 🛠️

You’ve seen how agents can search the web, but what if you need your AI to interact with your...

Day 7: Introducing AI Agents & Tools — Giving Your AI "Hands" 🛠️

Dev.to · Rushank Savant 🤖 AI Agents & Automation ⚡ AI Lesson 2mo ago

Day 7: Introducing AI Agents & Tools — Giving Your AI "Hands" 🛠️

We’ve spent a week building, where we predefined every single step. But what if you don't know the...

Self Querying Retrieval

Dev.to · Rushank Savant 2mo ago

Self Querying Retrieval

🧠 The Concept In standard RAG, the system is a bit "dumb." If you ask for "Romantic...

Day 6: Give Your AI a Memory — Building Chatbots that Actually Remember 🧠

Dev.to · Rushank Savant 2mo ago

Day 6: Give Your AI a Memory — Building Chatbots that Actually Remember 🧠

LLMs are stateless. Every time you send a message, it’s like the first time the AI has ever met you....

Day 5: Chaining the Chains — Building Multi-Step AI Pipelines 🏗️

Dev.to · Rushank Savant 2mo ago

Day 5: Chaining the Chains — Building Multi-Step AI Pipelines 🏗️

Until now, we’ve built "one-shot" apps: you ask a question, the AI gives an answer, and the story...

Sentence Window Retrieval

Dev.to · Rushank Savant 🧠 Large Language Models ⚡ AI Lesson 2mo ago

Sentence Window Retrieval

Sentence Window Retrieval is a technique designed to solve a classic RAG dilemma: "How do I give the...

Day 4: Output Parsers — Turning AI Chatter into Structured Data 🛠️

Dev.to · Rushank Savant 🧠 Large Language Models ⚡ AI Lesson 2mo ago

Day 4: Output Parsers — Turning AI Chatter into Structured Data 🛠️

So far, we’ve learned how to give instructions (Prompts) and get responses (Models). But there’s a...

Day 3: Mastering Prompt Templates — Stop Hardcoding Your Logic! 🧠

Dev.to · Rushank Savant 🧠 Large Language Models ⚡ AI Lesson 2mo ago

Day 3: Mastering Prompt Templates — Stop Hardcoding Your Logic! 🧠

Welcome to Day 3! Yesterday, we built our first chain. It worked, but we did something that...

Why the $292M KelpDAO Exploit Proves Smart Contract Audits Aren't Enough.

Dev.to · Rushank Savant 🔐 Cybersecurity ⚡ AI Lesson 2mo ago

Why the $292M KelpDAO Exploit Proves Smart Contract Audits Aren't Enough.

The "Valid" Exploit The KelpDAO incident is terrifying because the on-chain transactions looked 100%...

Python Environments at Warp Speed: A Guide to UV ⚡

Dev.to · Rushank Savant ⚡ AI Lesson 2mo ago

Python Environments at Warp Speed: A Guide to UV ⚡

If you’ve been in the Python world for a while, you know the "Environment Dance": create a venv,...

Day 2: Setting Up & Your First "Hello World" Chain 🛠️

Dev.to · Rushank Savant ⚡ AI Lesson 2mo ago

Day 2: Setting Up & Your First "Hello World" Chain 🛠️

Welcome back! Yesterday, we talked about the "what" and "why." Today, we stop talking and start...

Day 1: Let’s Demystify LangChain & LangGraph Together! 🚀

Dev.to · Rushank Savant 🧠 Large Language Models ⚡ AI Lesson 2mo ago

Day 1: Let’s Demystify LangChain & LangGraph Together! 🚀

Hello, world! I’m so excited to be your guide on this journey. We are kicking off a comprehensive...