astryx SKILL.md skillA

astryx from firzus/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add firzus/agent-skills/astryx@git:20261023.e4fc288

Pins git:20261023.e4fc288 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
firzus/agent-skills
Path
skills/web/astryx/SKILL.md
Versions recorded
2
Latest version
git:20261023.e4fc288, committed Oct 23, 2026
First version recorded
Jul 22, 2026
Size
6,162 bytes
Repository stars
4
License
MIT

Astryx (@astryxdesign) — Meta's open-source, agent-ready React + StyleX design system. Covers setup (npm packages, npx astryx init, StyleX compiler), the agent discovery loop (astryx template/component/docs, MCP server, --dense), per-component subpath imports, the xstyle styling order, design tokens, the Theme provider and defineTheme theming, cascade-layer CSS wiring, Tailwind and library interop, layout primitives, and incremental migration. Use when the user mentions Astryx, @astryxdesign…

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Astryx Design System

Astryx is Meta's open-source **React + StyleX** design system: 150+ accessible, themeable components with pre-compiled CSS, distributed as `@astryxdesign/*` npm packages and driven by a CLI (`npx astryx`) plus a hosted MCP server. Its defining trait is **agent-ready** — humans and AI build from the same API, so let the CLI/MCP be your source of truth, not the HTML docsite or memory. Astryx is in **beta** (`v0.x`); package names and flags may still shift.

Apply this skill when setting up, building UI with, theming, reviewing, or migrating an Astryx project.

**Done when:** every component is imported from its own subpath and reads design **tokens** (never hardcoded colors/spacing); styling follows the `xstyle → Tailwind → className` order with no `!important`; exactly one `<Theme>` provider owns color mode; the cascade-`@layer` line is declared once before CSS imports; swizzled components have a StyleX build plugin wired; and `npx astryx doctor` reports no failures.

## Setup

```bash
# 1. Install (npm or pnpm — both are shown in the docs)
npm install @astryxdesign/core @astryxdesign/theme-neutral @astryxdesign/cli
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add firzus/agent-skills/astryx@sha256:d75dae573d46bd4e

The line at the top of this page pins the label git:20261023.e4fc288, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_vcnggh5t6pvugaub.svg)](https://markdownregistry.com/a/art_vcnggh5t6pvugaub)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Jul 22, 2026 and Oct 23, 2026, about one every 93 days.

versioncommittedcommitsizeaudit
git:20261023.e4fc288 latest2026-10-23 e4fc288 6,162 BA view · diff
git:20260722.b16c4572026-07-22 b16c457 6,183 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (6162 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

firzus/agent-skills · 4 stars · license MIT · pushed 2026-11-03 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_vcnggh5t6pvugaub
GET https://markdownregistry.com/api/v1/resolve?ref=firzus/agent-skills/astryx
GET https://markdownregistry.com/api/v1/blob/d75dae573d46bd4eeeace19b20e36cb1dfdd5b242bd7c5e03797ca46bd92b1fd

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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Every file in firzus/agent-skills

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