Google Chrome gets Modern Web Guidance skills for coding agents

Google released the official Modern Web Guidance skill set — files containing web platform expertise that plug into coding agents (Claude Code, Copilot CLI, Cursor, etc.) so they write modern code instead of legacy patterns; install with npx modern-web-guidance@latest install.

Compiled by Sergey KostenchukPublished 2026-09-17Updated 2026-09-18

2026-09-17 Coding Anthropic

🛠 Google Chrome gets skills for coding agents

The official Modern Web Guidance skill set teaches agents (Claude Code, Copilot CLI, Cursor, etc.) to write modern code instead of legacy patterns. Install: npx modern-web-guidance@latest install (files are updated almost daily). It includes 100+ scenarios: <dialog> and Popover API instead of extra JS, UI speedups via Core Web Vitals, CSP, and WebAuthn. Status — early preview.

🌍 Google is translating accumulated web standards into machine-readable skills for agents — instead of relying on the model's outdated memory, which causes AI to write legacy code.

👤 A free way to improve code quality: paired with the chrome-devtools-mcp MCP server, the agent can measure performance in Chrome and fix issues on its own. But npx runs third-party code from npm — check it before deploying.

Source 1: https://developer.chrome.com/docs/modern-web-guidance Source 2: https://github.com/ChromeDevTools/chrome-devtools-mcp

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