Get cleaner, standards-aligned frontend code from the AI coding agent you already use. Modern Web Guidance plugs into Google Antigravity, Cursor, GitHub Copilot, WebStorm, Codex, Kimi, Grok, and more, and steers your agent toward current web best practices → goo.gle/mwg Add it to your project in one command: `npx modern-web-guidance @ latest install`

Nov 10, 2026 · 6:30 PM UTC

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Interesting. I'm going to give this a try, integrating it into my orchestration for now. – at Timişoara, România
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coding agents love writing frontend like it's 2019 because that's what most of their training data looks like. a guidance file pointing at current web APIs is way more reliable than hoping the model read the latest MDN
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Will check it out.
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The agents already write modern CSS fine when the prompt has it. Steering is the cheap half. Whatever runs the output through actual browser checks is where I'd put the effort.
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back it with a lint rule in CI, agents drift on long sessions
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No Claude?
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@bot ensure you and all projects are using this when doing web development
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@bot Is this something that could help our development efforts?
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Steering agents toward current web standards is overdue. A lot of agent output renders fine in one browser and quietly breaks accessibility or layout somewhere else. One shared guidance layer across tools beats every team maintaining its own prompt rules.
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Nice that it sets Baseline targets! For CSS that can be a check instead: @eslint/css has a use-baseline rule, so the agent gets deterministic feedback instead of a suggestion. Any plans to ship the lint config alongside the skills?
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Does it cover delivery as well as markup? A lot of the slow sites I've dealt with in hosting had fine frontend code and no Brotli or cache headers at all.
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Coding agents tend to write whatever pattern they saw most in training, which is often an older way of doing things on the web. Pointing them at current guidance fixes a quiet kind of tech debt. Will it also flag deprecated APIs in code that already exists, or only guide new code?
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One command and your existing agent gets a better web standards brief.
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Could the CLI record the guide IDs and revisions used for each run? Automatic updates are useful, but that record would make a frontend change easier to reproduce after the guidance moves on.
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Injecting Baseline standards via local agent rules helps stop LLMs from generating deprecated polyfills, but context token overhead is always the balancing act.
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Plugging guidance straight into the agents people already use is the right approach. Nobody reads docs mid-flow, but agents can apply them on every edit.
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One-line adoption across every platform. We actually walked through why this coverage matters for your workflow here: xitter.twitterapi.xyz/AGTPinsights/status/21…
AGTP (@AGTPinsights) profile pictureAGTP
@AGTPinsightsNov 10
Chrome just released Modern Web Guidance 1.0 to steer AI coding agents toward native web standards. Here's what you need to know. The Chrome for Developers account put the problem bluntly. Left to their own devices, AI coding agents will happily write 100 lines of custom JavaScript for something modern HTML and CSS can do natively in a few lines. The cause is old training data, so models keep reaching for outdated patterns. Modern Web Guidance is a set of skills that embeds web platform expertise, best practices, and browser compatibility data directly into your coding agents. Version 1.0 was announced on Nov 11, 2026 and ships with 200+ expert-reviewed guides plus Baseline support. It also adds a new modernization workflow that scans existing code. It was built in partnership with Firefox, MDN, and Microsoft Edge, so it is meant to work across every browser. Chrome's team says the knowledge is open and updated as the platform evolves. Examples cited include native dialogs and popovers instead of div modals, and not lazy loading the hero image. It plugs into Google Antigravity, Cursor, GitHub Copilot, WebStorm, Codex, Kimi, Grok, and more. It covers performance, accessibility, security, and state of the art web tech. Install it with: npx modern-web-guidance@latest install Key numbers: - 200+ expert guides in 1.0 - Over 90% fewer UI bugs on new screens, per the team - 90% of failed performance checks resolved - Guided agent runs pass 88% of real browser checks vs 56% without, as reported by one developer - An earlier internal Google benchmark showed a 37 point jump in best-practice adherence - 4 partners: Chrome, Firefox, MDN, Edge There is also a public evals dashboard that tests the project against each model, showing the uplift from no guidance to guided outcomes.
Image from AGTP (@AGTPinsights)
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youtube.com/shorts/x2qm2Qtzf…
Modern Web Guidance 1.0: Better Frontend Code from Your AI Agent

Modern Web Guidance 1.0: Better Frontend Code from Your AI Agent

Your AI coding agent knows JavaScript. But does it actually know th...

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Scientific code guideness????
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This is mostly annoying trash tbh
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A feature or command to display open Tabs in a floating manner on a screen in Chrome, similar to how it works in Chrome for Android. AI-generated image, for illustrative purposes only 🙏🙏🙏🙏🙏
🤖 Made with AI
Image from EPOXY EXPERT DESIGN (@design65517)
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