josharsh - Overview

🧪 Built the first MCP server testing framework → MCP-JEST

Engineering is mostly over-engineering. I try to build the simplest thing that actually works, then write about what breaks. Hence "unengineered." Read it on unengineered.substack.com

Hi! I am Harsh

Systems, Engineering and Dark Arts

I like building small things that work and big things that scale. Sometimes they're the same thing. I am an engineer currently building applied AI systems, developer tools, and blocks that will power tomorrow's AI infrastructure. Excited about shaping software patterns for the next decade. Currently at Coupang, Prev: At Visa, building payment systems at scale, and a founding engineer at Plum

Thinking about

Testing non-deterministic AI systems. Better abstractions for agentic workflows.

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Yet Another Web Playground is an online web Playground that lets you play with HTML CSS and JS in real-time. If you want to teach web and Zoom does not really allow you to express a lot, YAWP is ju…

JavaScript 11 15
Homework Submission, Automated Grading, and TA grading system.

PHP 765 1.1k
Easily scan your documents on the go with Paper. Scan those documents at ease with real-time document detection, multi paged pdfs, optimized and cleaner clicks from an easy to navigate UX

Dart 54 22
🚀 100+ mini-projects demonstrating the power of concise code. Perfect for learning, portfolio building, and first-time open source contributors. Under 100 lines each!

Jupyter Notebook 767 350
This repository walks you through the Object Oriented Programming in python. Illustrates real world examples, working codes and going about finding a coding solution.

Python 165 195
Automated testing for Model Context Protocol servers. Ship MCP Servers with confidence.

TypeScript 16 1