Concept
Agent · for engineering teams
Coding agent
Takes an issue, writes the change and the tests, and opens a pull request for you to review.
Hi, I’m Vinit.I build things that work.
An engineer who keeps running into problems that annoy me — then building my way out of them. Some become products, each its own story. More and more become agents that do one job end to end and hand the result back to you.
VCAbout me →
Based in Mumbai. Some things I build alone, some with friends. I write about all of it — the code, the launches, the marketing, the mistakes.
Things I’ve made
All workAgents
— what I’m making
Autonomous agents built on new AI. Each does one job end to end, then hands it to a person. None has shipped yet; this is the lab.
- In the labMeet Fillmore →
Form-filling agent · in your browser
Fillmore
Fills long web forms from your own documents, asks when it isn’t sure, and leaves Submit to you.
- Concept
Agent · for ReelForge
Caption agent
Turns an upload into a captioned, B-rolled reel for you to approve.
- Concept
Agent · for TraceSarkar
Filing agent
From a photo to a sourced complaint draft that you choose to send.
- OpenPitch me →
Open slot
Your problem?
Tell me a job you’d hand to an agent. The good ones become the next card here.
How my agents work
Same shape every time, whatever the job. An agent I can’t explain in five steps isn’t ready to ship.
- 1TriggerA form, an upload, a photo — something real starts it.
- 2PlanIt breaks the job into steps it can check.
- 3Use real toolsThe same pipelines my products run on: browsers, renderers, maps, documents.
- 4Check its own workSources must exist, every field must have one, the render must play.
- 5Hand it to a personYou approve, send or ship. Every run leaves a log you can read.
How a product happens here
- 1Get annoyedA real problem, ideally one I live next to.
- 2ResearchLaws, data, users, and everything that’s been tried.
- 3BuildSmall and strict, with the newest AI that genuinely fits.
- 4ShipIn front of real people early — then fix what they find.
- 5Tell peopleMarketing is part of the build. I write it all up.
Writing
Everything (10)- Bands, not percentages: a spatial join you can’t afford to get wrongHow TraceSarkar matches a photo of a pothole to the ward that owns the road and the contract that paid for it — and why every gate is built to ask rather than guess.Building · TraceSarkar
- Making a housing society’s books balance — in paiseWhy ViharSync keeps a real double-entry ledger, stores every rupee as an integer, and lets Postgres refuse any journal entry that doesn’t add up.Building · ViharSync
- 39 experiments toward a video editor with no serversWebCodecs, WebGPU, OPFS and on-device AI: how we’re de-risking an editor that runs entirely in the browser — and where the agentic part of ReelForge will come from.Building · ReelForge
- No model in the path: why we hand-write the post and the PDFTraceSarkar uses AI to read a photograph. It refuses to use AI to write a sentence about anyone. Here’s where we drew that line, and why.Principles · TraceSarkar
- 164 commits in seven days: rebuilding ViharSync with coding agentsWe chose a stack for AI agents to write, then built guardrails so strict that an agent can’t finish while anything is broken. What that looked like in practice.Building · ViharSync
Have a problem that needs building? Write to me.