Web Artifacts Builder
anthropics/skills
Builds multi-component claude.ai HTML artifacts as a small React, TypeScript and Tailwind project, then bundles it into one shareable HTML file.
Integrate systems after frontend direction. An agent skill from TheGoat395/Codex-Skills.
Install Modern Site Engineering
$ npx skills add TheGoat395/Codex-Skills --skill modern-site-engineering -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install TheGoat395/Codex-Skills modern-site-engineering --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/TheGoat395/Codex-Skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/modern-site-engineering .claude/skills/modern-site-engineering && 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 "modern-site-engineering" agent skill from https://github.com/TheGoat395/Codex-Skills/tree/main/skills/modern-site-engineering into .claude/skills/modern-site-engineering/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "modern-site-engineering", 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/TheGoat395/Codex-Skills/tree/main/skills/modern-site-engineeringType 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 TheGoat395/Codex-Skills --skill modern-site-engineering -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install TheGoat395/Codex-Skills modern-site-engineering --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/TheGoat395/Codex-Skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/modern-site-engineering .agents/skills/modern-site-engineering && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "modern-site-engineering" agent skill from https://github.com/TheGoat395/Codex-Skills/tree/main/skills/modern-site-engineering into .agents/skills/modern-site-engineering/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "modern-site-engineering", 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 TheGoat395/Codex-Skills --skill modern-site-engineering -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install TheGoat395/Codex-Skills modern-site-engineering --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/TheGoat395/Codex-Skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/modern-site-engineering .cursor/skills/modern-site-engineering && 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 "modern-site-engineering" agent skill from https://github.com/TheGoat395/Codex-Skills/tree/main/skills/modern-site-engineering into .cursor/skills/modern-site-engineering/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "modern-site-engineering", 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/TheGoat395/Codex-Skills.git --path skills/modern-site-engineering--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 TheGoat395/Codex-Skills --skill modern-site-engineering -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install TheGoat395/Codex-Skills modern-site-engineering --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/TheGoat395/Codex-Skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/modern-site-engineering .gemini/skills/modern-site-engineering && 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 "modern-site-engineering" agent skill from https://github.com/TheGoat395/Codex-Skills/tree/main/skills/modern-site-engineering into .gemini/skills/modern-site-engineering/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "modern-site-engineering", 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 TheGoat395/Codex-Skills modern-site-engineeringInstalls 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 TheGoat395/Codex-Skills --skill modern-site-engineering -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/TheGoat395/Codex-Skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/modern-site-engineering .github/skills/modern-site-engineering && 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 "modern-site-engineering" agent skill from https://github.com/TheGoat395/Codex-Skills/tree/main/skills/modern-site-engineering into .github/skills/modern-site-engineering/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "modern-site-engineering", 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 TheGoat395/Codex-Skills --skill modern-site-engineering -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install TheGoat395/Codex-Skills modern-site-engineering --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/TheGoat395/Codex-Skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/modern-site-engineering .opencode/skills/modern-site-engineering && 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 "modern-site-engineering" agent skill from https://github.com/TheGoat395/Codex-Skills/tree/main/skills/modern-site-engineering into .opencode/skills/modern-site-engineering/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "modern-site-engineering", 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.
Facts
- Skill name
modern-site-engineering- GitHub stars
- 126
- Token cost
- ~858 tokens
- SKILL.md length
- 427 words
- Files
- 3 (incl. references)
- Skills in repo
- 23
- Repo updated
- First seen
- Licence
- MIT
At a glance
Integrate systems after frontend direction. An agent skill from TheGoat395/Codex-Skills.
- Works in 8 steps: Inspect project and commands. → Reuse the approved visual system;… → Build version 1 with real content… → …
- Frontend & Design work in your project
- SKILL.md covers Operating Mode, Selected stack, Dependency Roles and Build Workflow, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Modern Site Engineering is an agent skill from TheGoat395/Codex-Skills. Integrate systems after frontend direction.
Its SKILL.md is about 860 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `agents/openai.yaml` and `references/stack-recipes.md`).
It sits in Frontend & Design. The repository describes itself as: Codex-first Agent Skills library for premium frontend, website, motion, accessibility, QA, and handoff workflows. The licence is MIT.
When your agent uses it
- Frontend & Design work in your project
Example prompts
- “/modern-site-engineering”
Workflow steps
8 steps, taken from the first numbered list in SKILL.md.
- Inspect project and commands.
- Reuse the approved visual system; establish type, color, spacing, media and motion only when those decisions are in scope.
- Build version 1 with real content structure.
- Run the app locally when possible.
- Inspect changed visual output in the browser at the requested supported sizes.
- Correct observed spacing, type, hierarchy, interaction, motion or responsive defects on affected surfaces. Repeat checks after edits or…
- Run available lint/build/test commands.
- Report files changed, commands run, and any errors honestly.
What it can do on your machine
Read from SKILL.md and the folder at commit feff772. It shows what the files ask for, not the result of running them.
Tool permissions
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.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Modern Site Engineering loads about 858 tokens when it runs, and up to ~1.4k if it reads all its reference files. Until then it costs about 17 tokens; SKILL.md has 427 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.
Safety
Auto-check passed
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.
SKILL.md
The full file from TheGoat395/Codex-Skills at commit feff772, republished under its MIT licence (© TheGoat395). 427 words, ~858 tokens.
Download SKILL.mdSave it as
.claude/skills/modern-site-engineering/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.- name
- modern-site-engineering
- description
- Integrate systems after frontend direction.
Modern Site Engineering
Operating Mode
Inspect relevant structure, framework, entry files, styling and interaction systems, and available build commands. Proceed within existing authorization and explain material choices.
Selected stack
Retain the selected framework and existing package manager. For a new project with an unresolved choice, use route-enterprise-web-stack if installed. Otherwise, compare the actual rendering, interaction, hosting and maintenance requirements, and choose the smallest compatible stack. Select only dependencies required by the actual components. The roles below are optional capabilities, not an installation list.
Dependency Roles
- Next.js: routing, metadata, optimized images/fonts, production build.
- TypeScript: stable component contracts.
- Tailwind: fast design-system implementation with custom tokens.
- CSS variables: brand colors, spacing, shadows, easing, radii, typography.
- Motion: React-native UI motion, enter/exit, hover/tap, layout transitions.
- GSAP: timeline-driven cinematic sequences, ScrollTrigger, pinned scenes, split text, advanced scroll choreography.
- Lenis: smooth scrolling when the design calls for cinematic scroll.
- Three.js/R3F/Drei: immersive product, material, shader, or spatial scenes.
- lucide-react: icons for controls and clear commands.
- shadcn/ui: accessible component source to customize, not a default visual identity.
- Playwright: visual and interaction verification.
Build Workflow
- Inspect project and commands.
- Reuse the approved visual system; establish type, color, spacing, media and motion only when those decisions are in scope.
- Build version 1 with real content structure.
- Run the app locally when possible.
- Inspect changed visual output in the browser at the requested supported sizes.
- Correct observed spacing, type, hierarchy, interaction, motion or responsive defects on affected surfaces. Repeat checks after edits or unresolved findings, not by fixed cycle.
- Run available lint/build/test commands.
- Report files changed, commands run, and any errors honestly.
Show full SKILL.md (159 more words)Show less
Component Defaults
- Prefer section components with clear names:
Hero,FeaturedWork,Experience,Gallery,Offer,Journal,Contact. - Keep layout primitives minimal and reusable.
- Use responsive constraints:
clamp(),minmax(),aspect-ratio, stable grid tracks. - Avoid text overflow by designing for the longest realistic labels.
- Make buttons feel designed: icon placement, focus state, hover state, disabled state.
- Use semantic HTML and accessible labels.
- Respect
prefers-reduced-motion.
Motion Defaults
Use CSS transitions for tiny state changes. Use Motion for component/state animation. Use GSAP only when timeline control or scroll choreography is actually needed. Use Three/R3F only when visual concept benefits from spatial or material interaction.
Read references/stack-recipes.md when starting a new project or adding dependencies.
Ownership
Coordinate integration once framework and direction are chosen. The optional architecture specialist is useful only for an unresolved decision; its absence does not block the local procedure above. A localized task goes directly to its implementation owner; this skill does not require a new site blueprint or full tool stack.
© TheGoat395, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 2 other files (references) in skills/modern-site-engineering of TheGoat395/Codex-Skills.
- SKILL.md
- agents/openai.yaml
- references/stack-recipes.md
Open the folder on GitHubat commit feff772
Compare with similar skills
Modern Site Engineering 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 |
|---|---|---|---|---|---|---|
| Modern Site Engineering this skillTheGoat395/Codex-Skills | 126 | — | ~858 | Automated safety check: Pass | MIT | |
| Web Artifacts Builderanthropics/skills | 180k | 40 repos | ~769 | Automated safety check: Pass | Apache-2.0 | |
| React Doctormakeplane/plane | 61k | 12 repos | ~657 | Automated safety check: Pass | AGPL-3.0 | |
| Impeccablebestofjs/bestofjs | 3.1k | 26 repos | ~2.6k | Automated safety check: Pass | MIT | |
| Figma Design System Builderwarpdotdev/warp | 65k | 2 repos | ~4.4k | Automated safety check: Pass | AGPL-3.0 | |
| Web Interface Guidelines Reviewervercel-labs/openreview | 1.7k | 97 repos | ~308 | Automated safety check: Pass | None |
Similar skills
- Official
React Doctor
makeplane/plane
Scans React code for lint, accessibility, bundle size and architecture issues, reports a health score and checks that changes do not lower it.
Impeccable
bestofjs/bestofjs
A skill your agent uses when the user wants to design, redesign, shape, critique, audit, polish, clarify, distill, harden, optimize, adapt, animate, colorize, extract, or otherwise improve a…
Figma Design System Builder
warpdotdev/warp
Builds or updates a design system in Figma from a codebase in ordered phases: discovery, variables and tokens, components, theming and documentation, with checkpoints.
- Official
Web Interface Guidelines Reviewer
vercel-labs/openreview
Review UI code for Web Interface Guidelines compliance. Use when asked to "review my UI", "check accessibility", "audit design", "review UX", or "check my…
Tailwindcss Development
anonaddy/anonaddy
Always invoke when the user's message includes 'tailwind' in any form.
More from TheGoat395/Codex-Skills
All 23 skills in this repoPremium Visual Reference Library
TheGoat395/Codex-Skills
Find references, Viktor Oddy and MotionSites. An agent skill from TheGoat395/Codex-Skills.
Agent Evaluation Operations
TheGoat395/Codex-Skills
Evaluate agent and skill behavior or routing. An agent skill from TheGoat395/Codex-Skills.
Creativity
TheGoat395/Codex-Skills
Generate original ideas or escape fixation. An agent skill from TheGoat395/Codex-Skills.
Final Client Handoff
TheGoat395/Codex-Skills
Prepare verified ownership and delivery notes. An agent skill from TheGoat395/Codex-Skills.
Visual Regression Lab
TheGoat395/Codex-Skills
Compare captures; stitch lazy/animated pages. An agent skill from TheGoat395/Codex-Skills.
Web Reference Research
TheGoat395/Codex-Skills
Analyze selected sources: Viktor or MotionSites. An agent skill from TheGoat395/Codex-Skills.
Related
Categories
Questions about Modern Site Engineering
What does Modern Site Engineering do?
Integrate systems after frontend direction. An agent skill from TheGoat395/Codex-Skills. Modern Site Engineering is an agent skill from TheGoat395/Codex-Skills. Integrate systems after frontend direction.
When should I use Modern Site Engineering?
Modern Site Engineering fits situations like: frontend & Design work in your project.
How do I install Modern Site Engineering in Claude Code?
Run `npx skills add TheGoat395/Codex-Skills --skill modern-site-engineering -a claude-code`. Or copy the skill folder (skills/modern-site-engineering in TheGoat395/Codex-Skills) into .claude/skills/modern-site-engineering in your project. Claude Code loads it when a task matches its description.
How do I install Modern Site Engineering in Codex?
Run `npx skills add TheGoat395/Codex-Skills --skill modern-site-engineering -a codex`. Or copy the skill folder (skills/modern-site-engineering in TheGoat395/Codex-Skills) into .agents/skills/modern-site-engineering in your project. Codex loads it when a task matches its description.
Can I use Modern Site Engineering in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add TheGoat395/Codex-Skills --skill modern-site-engineering -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/modern-site-engineering, .gemini/skills/modern-site-engineering, .github/skills/modern-site-engineering and .opencode/skills/modern-site-engineering in your project.
What does Modern Site Engineering need to run?
SKILL.md names no scripts, command-line tools or credentials: Modern Site Engineering is instructions for the agent only.
Does Modern Site Engineering access the network?
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.
Is Modern Site Engineering safe to install?
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.
What licence does Modern Site Engineering use?
Modern Site Engineering is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Modern Site Engineering use?
About 858 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. Its references folder adds about 577 tokens, read only when the agent opens those files.
What are the alternatives to Modern Site Engineering?
Skills that share tags, products or a category with Modern Site Engineering: Web Artifacts Builder (anthropics/skills, 180k stars), React Doctor (makeplane/plane, 61k stars), Impeccable (bestofjs/bestofjs, 3.1k stars) and Figma Design System Builder (warpdotdev/warp, 65k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Modern Site Engineering?
TheGoat395 (a GitHub user) maintains it in TheGoat395/Codex-Skills, which has 126 GitHub stars. The repository holds 23 skills in this directory. The repository was last updated on September 11, 2026.
Source: TheGoat395/Codex-Skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.