# GoogleChrome/modern-web-guidance

Keep your coding agent up to date with the latest web best practices

Repository: https://github.com/GoogleChrome/modern-web-guidance
Canonical: https://ross.abutalabs.com/products/modern-web-guidance
Homepage: https://goo.gle/modern-web-guidance
License: Apache-2.0
License Family: permissive
Last push: 2026-08-24T20:11:19+00:00

## Health v2 (maintenance only)
Score: 59/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 35, longevity 11
- inputs: {"age_days": 163, "days_push": 9, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, young
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1840, forks 71 (observed 2026-08-28T04:05:42.899591+00:00)

## What it is
A set of agent skills and an npm CLI from the Google Chrome and Microsoft Edge teams that embeds curated web platform best practices and browser compatibility data into AI coding agents. It steers agents away from legacy patterns toward modern browser APIs, performance, and accessibility-aware solutions.

## Use cases
- stop my coding agent from generating legacy JavaScript when native web APIs exist
- inject modern web best practices into Claude Code or Copilot CLI
- search expert-curated guides for animating a dialog modal backdrop
- get browser compatibility data into my AI assistant's context
- make LLM-generated frontend code more accessible and performant
- avoid heavy polyfills by using responsible fallbacks in generated code

## When to choose
- you use AI coding agents (Claude Code, Copilot CLI, Antigravity, Vercel Agent Skills) for web development
- you want generated code to use modern browser APIs instead of legacy patterns
- you need token-efficient, expert-curated web platform guidance in your agent's context

## When to avoid
- your project is not web development (e.g., backend-only, mobile native, data science)
- you don't use AI coding agents and just want human-readable docs
- you need guaranteed correctness rather than curated guidance - it's a preview release

## Facets
- artifact type: cli-tool
- maturity: active
- function: developer-tools, cli, documentation, prompt-engineering, agent-framework
- domain: web-development, developer-tools, artificial-intelligence, frontend
- platform: cli, cross-platform
- tags: ai-coding-agents, agent-skills, web-platform, browser-compatibility, best-practices, context-window, chrome, mcp-adjacent, nodejs

## Member repositories
- GoogleChrome/modern-web-guidance (main) score 59

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:42.899591+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:18:02.542886+00:00, confidence not recorded.
  - readme: https://github.com/GoogleChrome/modern-web-guidance (fetched 2026-08-28T04:05:42.899591+00:00, sha eeec31447b00)
  - homepage: https://goo.gle/modern-web-guidance (fetched 2026-08-29T10:57:38.630506+00:00, sha f2baf891b577)
  - site_page: https://developer.chrome.com/docs/capabilities (fetched 2026-08-29T10:57:38.643685+00:00, sha fa7a497e35fc)
  - site_page: https://developer.chrome.com/docs/automation-and-testing (fetched 2026-08-29T10:57:38.645878+00:00, sha 9d1a85eb8718)
  - site_page: https://developer.chrome.com/docs/chromedriver (fetched 2026-08-29T10:57:38.647807+00:00, sha 299702e6528a)
  - site_page: https://developer.chrome.com/docs/extensions (fetched 2026-08-29T10:57:38.649630+00:00, sha 1b3000706122)
  - site_page: https://developer.chrome.com/docs/webstore (fetched 2026-08-29T10:57:38.651355+00:00, sha 7e2ba0f4b2c3)
  - site_page: https://developer.chrome.com/docs (fetched 2026-08-29T10:57:38.639870+00:00, sha e332f343e20e)
  - site_page: https://developer.chrome.com/docs/web-platform (fetched 2026-08-29T10:57:38.641703+00:00, sha 3a64aa5949b9)
  - site_page: https://developer.chrome.com/docs/chromium (fetched 2026-08-29T10:57:38.653132+00:00, sha 5b41a2712c9e)
- Data as of 2026-08-30T08:39:29.467469+00:00.