Ranjan Kumar
AI & ML Engineer · Author · Educator
I help AI builders design, build, and ship production-grade systems that actually work — through hands-on writing, books, and practical engineering guides.
Latest Posts
View all →The 7 GenAI Architectures Every AI Engineer Should Know
>*Most GenAI systems fail not because the model is wrong — but because the architecture around it was chosen without a framework.* >*Teams jump to agents, bo...
agentic-aiFrom LLMs to Agents: The Mindset Shift Nobody Talks About
<Callout type="info"> >*An LLM responds. An agent decides.* </Callout> ## The Question Most Engineers Get Wrong Here's a question I ask engineers who ar...
agentic-aiCopilotKit in Production: Where the Abstraction Holds and Where You're on Your Own
>*The batteries are included. The production infrastructure isn't.* ## You Shipped the Demo. Then Reality Hit. You integrated CopilotKit in a weekend. The...
ai-safetyConsequence Modeling for Agent Systems: Predicting Action Impact Before Execution
An agent decided to clean up old database records. It identified 50,000 "inactive" user accounts based on a 90-day activity threshold. It executed `DELETE FROM ...
My Books
The ChatML Handbook
Structured Prompting & LLM Conversations
Learn how to structure prompts using ChatML for predictable, production-ready LLM behavior.
Building Real-World Agentic AI Systems
From Prototypes to Production
A practitioner's guide to designing, deploying, and operating reliable agentic AI systems in the real world.
My Toolkit
A collection of tools I've built to boost productivity and simplify workflows.
Developer & AI Tools
MedhaV - मेधावी
Start every day with clarity
Imagelly
AI-Based SaaS Image Edit/Enhancement Tool
Mermaid Diagram Generator
Create flowcharts, sequence diagrams, and more
MermAniSt — Mermaid Animation Studio
Turn Mermaid diagrams into animated presentations
LinkedIn Text Formatter
Format your LinkedIn posts with bold, italic, and more
MarkMelon: Markdown Editor
Edit, generate docs from Markdown and more
Slides Creator from Markdown
Generate beautiful presentations from Markdown
What I Write About
AI & ML Engineering
Production-ready AI systems, LLMs, and machine learning deployment strategies.
System Design
Scalable architectures, distributed systems, and infrastructure for AI applications.
Real-World Projects
Case studies, lessons learned, and practical insights from production deployments.