# Modern Web Guidance 1.0 — Chrome skills that modernize agent-written web code

> Chrome's skill pack teaches coding agents to use modern web features instead of 2019-era patterns.

- Org: Google Chrome
- Date: 2026-11-10
- Category: tool, repo
- Source: https://github.com/GoogleChrome/modern-web-guidance
- Canonical page: https://ai-tldr.dev/releases/google-chrome-modern-web-guidance-v1-0/

## In short

Modern Web Guidance 1.0 is an Apache-2.0 skill pack and offline CLI from the Chrome team. It gives coding agents current web guidance for 250 features, so they stop writing legacy JavaScript and CSS.

## What it is

Modern Web Guidance is a set of skills from the Chrome team, built with Edge, Firefox and MDN, that gives coding agents up-to-date web platform guidance and browser compatibility data. Version 1.0.0 shipped on 10 November.

## How it works

The skill makes the agent call a local CLI. It runs search, which matches the query to a guide with an offline embedding model and BM25 with no network calls, then retrieve to load code patterns, gotchas and fallbacks into context.

## Why it matters

Agents often default to older solutions even when the browser has a native feature. A legacy-scan command also flags outdated patterns in an existing codebase.

## Who it's for

front-end developers using coding agents

## Try it

npx modern-web-guidance@latest install

## Links

- [GitHub Repo](https://github.com/GoogleChrome/modern-web-guidance)
- [v1.0.0 Release](https://github.com/GoogleChrome/modern-web-guidance/releases/tag/v1.0.0)
- [Chrome Docs](https://developer.chrome.com/docs/modern-web-guidance)
- [Show HN Thread](https://news.ycombinator.com/item?id=50443812)