Will Zhao

Co-founder & CEO @ Shiplight AI. Ex-Airbnb, Snap, Facebook. Entrepreneur, investor, learner.

[Will Zhao @nerdwillz]

@VictorTaelin @morew4rd Have it open the browser and see how bad it is for itself haha

[Will Zhao @nerdwillz]

@tom_doerr Cool stuff!

[Will Zhao @nerdwillz]

@garrytan It's alright at making tests, there are ways to give it scaffolding to make those tests completely e2e

[Will Zhao @nerdwillz]

@DeRonin_ I'll add one more for you - if you want end to end testing on what you did make, add the Shiplight plugin and get easy, full coverage
https://t.co/o22GVCKhCC

[Will Zhao @nerdwillz]

@SirDanJets @ycombinator @ArgaLabs Good question

[Will Zhao @nerdwillz]

AI made writing checks cheap.

it did not make senior engineering time cheap.

the real cost shows up when experienced engineers lose mornings inside triage loops that should already have a clear path to resolution

[Will Zhao @nerdwillz]

the hidden org problem in AI-generated browser testing:

nobody explicitly owns the ambiguity loop

the failure happens
everyone sees red
and the team loses time deciding whether it’s app, test, infra, or config

the slowdown isn’t the issue itself

it’s unclear ownership of the path to resolution

[Will Zhao @nerdwillz]

AI didn’t make browser failures more expensive.

It made ambiguity more expensive.

The real tax isn’t a broken test.

It’s the time engineering teams lose figuring out whether the failure is a real regression or just suite drift after the UI changed.

[Will Zhao @nerdwillz]

@sironyeka hey

[Will Zhao @nerdwillz]

The teams actually getting leverage from AI coding aren’t the ones generating the most tests.

They’re the ones shortening the time between code being written and confidence being restored.

The moment verification becomes a separate maintenance workflow, the old QA bottleneck just reappears inside engineering.

The real unlock is keeping browser validation inside the coding loop itself

[Will Zhao @nerdwillz]

AI agents can generate 100 browser tests in minutes

the real tax starts 2 weeks later

selectors drift
UI shifts
flows get reworked
now an engineering manager owns a flaky suite nobody asked for
that maintenance burden is becoming the hidden cost of AI coding velocity

[Will Zhao @nerdwillz]

@hridoyreh Good list

[Will Zhao @nerdwillz]

@liu34762 Glad you enjoyed it!

[Will Zhao @nerdwillz]

We eliminated 85% of the manual UI testing we used to do before every merge. Now we're giving the tool away for free.

Today we're launching Shiplight MCP. One line install, and your coding agent can verify its own work in a real browser before you ever look at it.

Write the code. Navigate the UI. Take screenshots. Catch regressions. All in one agent loop.

Works with Claude Code, Cursor, and Codex. Completely free and token-efficient.

The bottleneck in agentic development isn't writing code anymore. It's verifying it. We're closing that gap.

Quick Start 👉 https://t.co/VWhC71cweZ

Demo 👉 https://t.co/gabAhFNoqs

[Will Zhao @nerdwillz]

@schkolnick__ Absolutely, Shiplight MCP will drastically improve dev flows

[Will Zhao @nerdwillz]

@pearvc “Thanks! Excited to finally make verification as easy as writing code 🚀”