Ranjan Kumar
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systems-design
10 articles
Title
Date
Human-in-the-Loop at Production Scale: The Checkpoint Membrane
Jun 21, 2026
Fault Isolation and Circuit Breaking: Stop Retrying LLM Calls Like Microservices
Jun 16, 2026
State Architecture for Agent Networks: The Resume Is the Dangerous Part
Jun 15, 2026
Validation Layer Design: Building the Reflex That Catches What the Model Gets Wrong
Apr 5, 2026
State Management for Agentic Systems: How to Build Agents That Don't Start Over
Apr 5, 2026
Retry, Fallback, and Circuit Breaking: Building LLM Infrastructure That Survives Outages
Apr 5, 2026
Normalization and Input Defense: Hardening the Entry Point of Your LLM System
Apr 5, 2026
Deterministic Constraint Systems: Building Tool Registries That Keep Agents in Scope
Apr 5, 2026
Context Engineering: What the Model Sees Is What the Model Does
Apr 5, 2026
Harness Engineering: The Missing Layer Between LLMs and Production Systems
Apr 3, 2026
Books by Ranjan Kumar
Building Real-World Agentic AI Systems
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Buy on Amazon India
The ChatML Handbook
Buy on Amazon US
Buy on Amazon India
The Chat Templates Handbook
Buy on Amazon US
Buy on Amazon India