Medium

Sachin Kasana

Sachin Kasana

·

Oct 30

I Finally Understood AI Agent Harnesses by Building One in Python

An LLM can generate code. But what makes it capable of actually fixing bugs, running tests, and completing tasks?

I Finally Understood AI Agent Harnesses by Building One in Python

Sachin Kasana

·

Oct 24

9 Places Jev Could Replace an LLM Call in Your AI Application

From model routing to guardrails and RAG, here are nine practical ways to use Jev where generating text might be unnecessary.

9 Places Jev Could Replace an LLM Call in Your AI Application

In

Beyond Localhost

by

Sachin Kasana

·

Oct 20

Beyond Prompt Engineering: 8 AI Concepts Worth Understanding

From harnesses and MCP to agent skills and computer use, here’s what’s powering the next generation of AI tools.

Beyond Prompt Engineering: 8 AI Concepts Worth Understanding

Sachin Kasana

·

Oct 19

LLMs Can Reason. Jev Can Decide. Here’s How to Build Better AI Agents.

Building a production-oriented AI support system with Jev, TypeScript, structured decisions, and deterministic workflow orchestration.

LLMs Can Reason. Jev Can Decide. Here’s How to Build Better AI Agents.

In

GoPenAI

by

Sachin Kasana

·

Oct 18

Your Website Ranks on Google. But Does AI Know It Exists?

The practical guide to AEO and GEO — with real code examples, technical fixes, and a simple way to measure whether AI search engines are…

Your Website Ranks on Google. But Does AI Know It Exists?

Sachin Kasana

·

Oct 17

10 Foundational AI Agent Papers Every Engineer Should Understand in 2026

From reasoning and tool calling to memory, self-improvement, and multi-agent systems — with practical examples you can apply to real…

10 Foundational AI Agent Papers Every Engineer Should Understand in 2026

In

Beyond Localhost

by

Sachin Kasana

·

Oct 16

10 AI Developer Tools You Should Try Before Everyone Else Does

Every few months, a new AI tool quietly changes how developers work.

10 AI Developer Tools You Should Try Before Everyone Else Does

Sachin Kasana

·

Sep 21

How to Find Fraud by Looking at 100 Million Relationships Instead of Transactions

A payment for ₹4,999 doesn’t look suspicious.

How to Find Fraud by Looking at 100 Million Relationships Instead of Transactions

Sachin Kasana

·

Sep 12

Your AI Agent Is Stuck in a Loop. Here Are 11 Ways to Fix It

Your AI agent called the same API 17 times.

Your AI Agent Is Stuck in a Loop. Here Are 11 Ways to Fix It

In

JavaScript in Plain English

by

Sachin Kasana

·

Sep 5

How to Find the Real Bottleneck in a Node.js Backend

Your Node.js API is slow.

How to Find the Real Bottleneck in a Node.js Backend

Sachin Kasana

Sachin Kasana

Principal Engineer & Architect | Node.js, React, AWS I build tools, write about clean code, and simplify system design. 🌐Portfolio: sachinkasana-dev.vercel.app

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