Builder-engineer

I turn ideas intothings you can click.

I build products from a rough idea through to launch: the backend, the web and mobile apps, and the AI parts.

Book a consult→Get in touch

Riten Vagadiya

15+ yrs in tech

AI Skills builder

vague requirement → launched product

Drag the stickers.

About

I'm an all-round tech builder with over fifteen years of experience. That has meant backend architecture, real-time systems, mobile and web apps, and lately a lot of AI agents. I like taking a vague requirement and turning it into something people can use.

TypeScript
Node.js
Python
React
Swift
Kotlin
Flutter
OpenAI
Langchain
Amazon Bedrock
RAG pipelines
Agentic workflows

Things I've built

vague requirement → launched product

Platforms³

Products I built and launched.

Tellbit

Tellbit

Tell the people you love the little things, like 'I'm home', without typing a word. On iOS and Android.

Wyoot

Wyoot

Interactive stories you can finish in about ten minutes, where your choices change what happens next. You can write your own, too.

Retro Desktop

Retro Desktop

A desktop OS in the browser, built with jQuery back in 2012. There are games hidden in it.

vanilla jsnostalgia

Games¹

Games for iOS and Android.

DiDuDaDo

DiDuDaDo

A reflex game you play by ear: hear Di, Du, Da or Do and tilt your phone that way as fast as you can.

AI Skills⁴

Skills that check a coding agent's work against what you asked for.

Assumption Hunter

Points out what your agent assumed without checking.

Scope Creep Detector

Flags what your agent added that you didn't ask for.

Context Drift Detector

Flags when your agent goes against a decision you already made.

Complexity Budget

Checks whether a change is more complicated than the problem needs.

Open source tooling²

Code on GitHub and npm.

Exercise Quality

Simulated squats built from body measurements of 6,068 real people, as the basis for small models that describe exercise form.

pythonbiomechanics

npm$ npm publish

Tokensift and more

A token-efficiency linter for LLM prompts, plus a handful of older npm utilities.

Intermission

click to scatter

FIDGET HERE