Envilder website design system: themes, CSS variables, breakpoints, spacing, typography, and component patterns.
$ npx skills add macalbert/envilder --skill website-design-system -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install macalbert/envilder website-design-system --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/macalbert/envilder.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.github/skills/website-design-system .claude/skills/website-design-system && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "website-design-system" agent skill from https://github.com/macalbert/envilder/tree/main/.github/skills/website-design-system into .claude/skills/website-design-system/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "website-design-system", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/macalbert/envilder/tree/main/.github/skills/website-design-systemType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add macalbert/envilder --skill website-design-system -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install macalbert/envilder website-design-system --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/macalbert/envilder.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.github/skills/website-design-system .agents/skills/website-design-system && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "website-design-system" agent skill from https://github.com/macalbert/envilder/tree/main/.github/skills/website-design-system into .agents/skills/website-design-system/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "website-design-system", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add macalbert/envilder --skill website-design-system -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install macalbert/envilder website-design-system --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/macalbert/envilder.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.github/skills/website-design-system .cursor/skills/website-design-system && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "website-design-system" agent skill from https://github.com/macalbert/envilder/tree/main/.github/skills/website-design-system into .cursor/skills/website-design-system/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "website-design-system", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/macalbert/envilder.git --path .github/skills/website-design-system--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add macalbert/envilder --skill website-design-system -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install macalbert/envilder website-design-system --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/macalbert/envilder.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.github/skills/website-design-system .gemini/skills/website-design-system && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "website-design-system" agent skill from https://github.com/macalbert/envilder/tree/main/.github/skills/website-design-system into .gemini/skills/website-design-system/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "website-design-system", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install macalbert/envilder website-design-systemInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add macalbert/envilder --skill website-design-system -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/macalbert/envilder.git skills-src && mkdir -p .github/skills && cp -r skills-src/.github/skills/website-design-system .github/skills/website-design-system && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "website-design-system" agent skill from https://github.com/macalbert/envilder/tree/main/.github/skills/website-design-system into .github/skills/website-design-system/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "website-design-system", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add macalbert/envilder --skill website-design-system -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install macalbert/envilder website-design-system --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/macalbert/envilder.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.github/skills/website-design-system .opencode/skills/website-design-system && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "website-design-system" agent skill from https://github.com/macalbert/envilder/tree/main/.github/skills/website-design-system into .opencode/skills/website-design-system/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "website-design-system", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
website-design-systemEnvilder website design system: themes, CSS variables, breakpoints, spacing, typography, and component patterns.
Website Design System is an agent skill from macalbert/envilder. Envilder website design system: themes, CSS variables, breakpoints, spacing, typography, and component patterns. Use when creating or editing Astro components, adding CSS, or styling website pages. Ensures visual consistency across retro and light themes.
Its SKILL.md is about 840 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Frontend & Design, covering Design systems, Responsive design and Design tokens. It works with Astro. The repository describes itself as: One secret mapping for local dev, CI/CD, and runtime. Envilder resolves cloud secrets from your own vaults without SaaS middlemen, duplicated config, or .env drift. The licence is MIT.
Read from SKILL.md and the folder at commit b6a0327. It shows what the files ask for, not the result of running them.
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
No scripts in the folder and no shell commands in SKILL.md (its code samples are css).
From the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Website Design System loads about 839 tokens when it runs. Until then it costs about 69 tokens; SKILL.md has 335 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
The full file from macalbert/envilder at commit b6a0327, republished under its MIT licence (© macalbert). 335 words, ~839 tokens.
.claude/skills/website-design-system/SKILL.md (or your agent's skills folder).Rules and patterns for the Envilder website's pure CSS design system.
The site uses data-theme attribute on <html>. Two themes are supported:
| Theme | Selector | Palette |
|---|---|---|
| Retro (default) | :root | Game Boy green |
| Light | [data-theme="light"] | Warm neutrals |
:root (retro) and
[data-theme="light"] blocks in global.css/* ✓ Correct */
color: var(--color-text);
background: var(--color-bg);
/* ✗ NEVER */
color: #8bac0f;
background: #1a1a2e;Mobile-first approach. Default styles target mobile; expand with min-width.
| Breakpoint | Target | Pattern |
|---|---|---|
| Default | Mobile | Single column, compact spacing |
min-width: 640px | Tablet | 2-column grids, expanded spacing |
min-width: 1024px | Desktop | 3-4 column grids, full layout |
Use existing grid classes: .grid-2, .grid-3, .grid-4.
Use the spacing scale defined in global.css:
--space-xs through --space-4xl--max-width (1200px)| Use | Font | Access |
|---|---|---|
| Section titles / pixel style | Press Start 2P | Via .pixel-card h3 or custom class |
| Body text | Inter | Default (inherited) |
| Code / terminal | JetBrains Mono | <code>, <pre>, or mono class |
clamp() for fluid typographypx font sizesReuse existing CSS classes for visual consistency:
| Class | Purpose |
|---|---|
.pixel-card | Bordered cards with pixel corner notches |
.pixel-icon | Emoji with pixelated filter |
.pixel-shadow | 4px offset retro shadow |
.badge | Small label badges |
.pixel-divider | Section separator |
.scanlines | CRT overlay effect (use sparingly) |
.section | Standard section wrapper with vertical padding |
| What | Where |
|---|---|
| Global CSS | src/website/src/styles/global.css |
| Components | src/website/src/components/*.astro |
| Layout | src/website/src/layouts/BaseLayout.astro |
global.cssclamp() or relative units<script> tags only© macalbert, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Just SKILL.md in .github/skills/website-design-system of macalbert/envilder.
Open the folder on GitHubat commit b6a0327
Website Design System next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Website Design System this skillmacalbert/envilder | 138 | — | ~839 | Automated safety check: Pass | MIT | |
| Using Ouds Web Version Major MinorOrange-OpenSource/Orange-Boosted-Bootstrap | 222 | — | ~4.1k | Automated safety check: Pass | MIT | |
| Extract Design Systemespennilsen/pi | 122 | — | ~2k | Automated safety check: Pass | MIT | |
| Design SystemOhh-889/skyroc | 795 | 11 repos | ~1.7k | Automated safety check: Pass | MIT | |
| Scalar Design Systemscalar/scalar | 16k | — | ~2.7k | Automated safety check: Pass | MIT | |
| Stitch Taste Design Systemgoogle-labs-code/stitch-skills | 8.4k | 15 repos | ~3.1k | Automated safety check: Pass | Apache-2.0 |
Orange-OpenSource/Orange-Boosted-Bootstrap
Provides comprehensive knowledge of the OUDS Web library (Orange Unified Design System for Web), a Bootstrap-based CSS/JS framework for building Orange-branded web interfaces.
espennilsen/pi
Reverse-engineer a design system from a live website (public URL or localhost).
Ohh-889/skyroc
Token architecture, component specifications, and slide generation.
scalar/scalar
Scalar's design system — design tokens, theming (@scalar/themes), CSS variables, and the @scalar/components library.
google-labs-code/stitch-skills
Generates a DESIGN.md design-language file for Google Stitch that encodes color, typography, layout, component behavior and motion rules to avoid generic AI-looking UI.
fulldotdev/ui
Audit and update the existing Fulldev Astro UI registry against current data-slot and shadcn/ui Base UI Vega.
macalbert/envilder
Five independent analysis perspectives for code review: correctness, architecture, security, conventions, and complexity.
macalbert/envilder
Index of Architecture Decision Records (ADRs) for cross-cutting technical decisions.
macalbert/envilder
Git commit messages, PR workflow, and branching strategy using Conventional Commits and Semantic Versioning.
macalbert/envilder
Mandatory testing conventions including the narrow diagnostic exception for testing test-only code, AAA pattern, test naming, and assertions across all stacks (.NET, TypeScript, Python).
macalbert/envilder
Workflow for maintaining changelogs, READMEs, and documentation files.
macalbert/envilder
Audit and synchronize documentation across website, READMEs, and docs/.
Works with
Categories
Envilder website design system: themes, CSS variables, breakpoints, spacing, typography, and component patterns. Website Design System is an agent skill from macalbert/envilder. Envilder website design system: themes, CSS variables, breakpoints, spacing, typography, and component patterns.
Website Design System fits situations like: editing Astro components; styling website pages.
Run `npx skills add macalbert/envilder --skill website-design-system -a claude-code`. Or copy the skill folder (.github/skills/website-design-system in macalbert/envilder) into .claude/skills/website-design-system in your project. Claude Code loads it when a task matches its description.
Run `npx skills add macalbert/envilder --skill website-design-system -a codex`. Or copy the skill folder (.github/skills/website-design-system in macalbert/envilder) into .agents/skills/website-design-system in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add macalbert/envilder --skill website-design-system -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/website-design-system, .gemini/skills/website-design-system, .github/skills/website-design-system and .opencode/skills/website-design-system in your project.
SKILL.md names no scripts, command-line tools or credentials: Website Design System is instructions for the agent only.
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
Website Design System is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 839 tokens (SKILL.md is roughly 3.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Website Design System: Using Ouds Web Version Major Minor (Orange-OpenSource/Orange-Boosted-Bootstrap, 222 stars), Extract Design System (espennilsen/pi, 122 stars), Design System (Ohh-889/skyroc, 795 stars) and Scalar Design System (scalar/scalar, 16k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
macalbert (a GitHub user) maintains it in macalbert/envilder, which has 138 GitHub stars. The repository holds 30 skills in this directory. The repository was last updated on October 5, 2026.
Source: macalbert/envilder on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.
