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 →Orchestration in Agentic AI: Tool Selection, Execution, Planning Topologies, and Context Engineering
Most agent failures are not model failures. They are orchestration failures. The model did exactly what it was asked to do — selecting a tool that was semant...
agentic-aiTool Use in LLM Agents: From Local Functions to the Model Context Protocol
An LLM that can only generate text is a fancy autocomplete engine. The moment you give it tools — the ability to call functions, query APIs, execute code, read ...
Agentic AIDesigning User Experience for Agentic AI Systems
A team I know built a genuinely impressive research agent. It could search the web, pull documents, synthesize findings, and write a structured report — all fro...
Agentic AIDesigning Agentic AI Systems That Survive Production
Here's a failure mode I've seen repeatedly: a team builds an impressive agentic demo. The agent browses the web, writes code, calls APIs, and chains five steps ...
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.