vercel-labs dev3000
COMMUNITYLABSCO SUMMARY
The core tool starts your project's dev server, opens a browser through the Chrome DevTools Protocol, and captures server logs, browser console messages, network requests, screenshots, and user interactions into one timestamped timeline an AI agent can read. It works with any framework that has a dev server — the README names Next.js, Vite, Django, Rails, and others — and can run alongside an agent in a split-screen tmux session.
Of the three skills, d3k is the general one: it starts or reuses a running d3k session, waits for it to be ready, and hands an agent the combined browser-and-server evidence to debug an issue. analyze-bundle is narrower — it only converts Next.js bundle-analyzer output to NDJSON, so it is useful on Next.js projects specifically. deepsec runs a separate scanner, DeepSec, against a project checkout that d3k has already set up; that is a second tool being orchestrated here, not part of dev3000 itself.
READ THE FULL ANALYSIS
What it costs to start. The d3k and analyze-bundle skills need only the CLI installed locally (bun install -g dev3000, or npm/pnpm) — no account. deepsec is the one skill of the three that needs an account or key of its own, since it calls out to that separate scanning service.
Who this is for. Anyone debugging a running web app with an AI coding agent already in the loop — the pitch is literally telling the agent to fix the app and letting it read the combined log. It is not useful without a project to point it at, and the deepsec skill only makes sense on a project already hosted on Vercel.
WHAT'S INSIDE
3 showing · 3 totalanalyze-bundle
Next.js can tell you what went into the JavaScript it ships to a browser, but only as a binary file. This turns that into plain searchable text, so you can see which page and which source file are making the download big.
d3k
Runs your site locally and records everything that happens while you use it - server logs, browser console, network calls, screenshots - onto one timeline, so whoever debugs it afterwards sees exactly what you saw.
deepsec
Points a security-scanning agent at your project, keeps the first pass deliberately short instead of letting it run all night, and writes up what it found as a report you can read and commit.
HOW TO GET IT
npx skills add vercel-labs/dev3000npx skills add vercel-labs/dev3000 --skill <name> --full-depthPick the skill name from the Skills tab — each entry there installs independently.