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By vercel

next-dev-loop

vercel

Catch runtime bugs before they reach users.

runtime verification

What it does

Confirm edited app code works at runtime, not only that its types or build succeed.

When to use it

Use it to confirm a change works in a running Next.js app.

How to use it

It changes how the agent verifies edited app code by cross-checking Next.js runtime data with a real browser.

What you provide

  • An existing project

Uses


Access · 1

This skill

browser session state

Write

Saves browser session state

What you need · 3

Next.js 16.3 or newer with Turbopack is required.

agent-browser version 0.31.1 or newer must be installed and available on PATH.

A Next.js development server must already be running.


About this skill

Visibility
Public
Repository
vercel/next.js
Created
Oct 8, 2026
Updated
Oct 8, 2026
Files
1