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insane-design-codex

v0.5.5

Codex-native design system analyze / apply / build / export — extract real CSS into design.md + report.ko.html, apply a design to an existing project, scaffold new artifacts, and export DTCG tokens.json.

Codex3 Skills

By fivetakuLicense: MIT128 GitHub starsUpdated last month

Directory evidence

Runtimes
Codex
Parsed components
3 skill or MCP entries
Source updated
Sep 8, 2026
Manifest status
Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install insane-design-codex for Codex

Installs for the current user
codex plugin marketplace add fivetaku/gptaku-plugins-codex
codex plugin marketplace upgrade gptaku-codex
codex plugin add insane-design-codex@gptaku-codex

Paste and run these commands in a terminal with Codex. They add and refresh the gptaku-codex catalog, then install this plugin.

Compatibility: the page URL and API slug “insane-design-codex” remain stable.

  • Codex: insane-design-codex@agent-plugin-marketplace → insane-design-codex@gptaku-codex

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually
git clone https://github.com/fivetaku/gptaku-plugins-codex

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The plugin root is plugins/insane-design-codex/.

Plugin files

plugins/insane-design-codex/
├── .codex-plugin/plugin.json
├── skills/insane-apply/SKILL.md
├── skills/insane-build/SKILL.md
└── skills/insane-design/SKILL.md

Included Skills3

insane-applyskills/insane-apply/SKILL.md

Applies an analyzed design.md to an existing project while preserving content. Supports three levels — Lv1 swaps tokens only, Lv2 rewrites styles, Lv3 does a full redesign with BOLD direction commit, Unforgettable signature, and motion level. Includes persona lock-in (expert designer + user as manager), a §18 DON'T grep quota (min 6 calls across color / structure / typo), and an opt-in deeper verifier that runs as a background sub-agent. Pairs with insane-design (analysis) and insane-build. Korean triggers — "디자인 적용해줘", "stripe처럼 만들어줘", "이 스타일로 리디자인", "레이아웃 바꿔줘", "Tesla 느낌으로", "톤앤매너 적용", "그 사이트 스타일로 만들어줘". English triggers — "apply design", "redesign like", "make it feel like", "adopt this style".

insane-buildskills/insane-build/SKILL.md

Build a new site, deck, card, or design-system catalog from scratch using a design.md brief (or synthesize one on the fly). Pairs with insane-design (analysis) and insane-apply. Writes deterministic HTML+CSS into insane-build/{session}/variations/v{N}/ honoring §18 DON'T grep, AI-slop guards, and persona lock-in. Defaults to v1 × 1 (single variation) for token economy; v1/v2/v3 variations are opt-in only. Optional deeper verifier runs as a background sub-agent. Korean triggers — "빌드", "만들어줘", "새로 만들어", "처음부터", "랜딩 만들어줘", "덱 만들어줘", "카드뉴스 만들어줘", "insane-build". English triggers — "build", "scaffold", "from scratch", "make a landing", "make a deck", "make a card".

insane-designskills/insane-design/SKILL.md

Design system analyze / apply / build router plus the analysis engine. Extracts a deterministic design system from any URL by fetching real CSS, parsing custom properties, and writing a 19-section design.md (schema_version 3.2 with medium + archetype detection) plus an interactive report.ko.html. Also exports design.md frontmatter to a W3C DTCG tokens.json. Pairs with insane-apply and insane-build via the §18 DON'T hex-grep contract. Korean triggers — "디자인 분석해줘", "이 사이트 디자인 시스템 뽑아줘", "CSS 뜯어봐", "design.md 만들어줘", "레퍼런스 리포트 만들어줘", "사이트 분석", "디자인 토큰 추출", "tokens.json 내보내줘". English triggers — "analyze design", "extract design tokens", "rip the design system", "what CSS does this site use", "export DTCG tokens".

Plugin manifests1

plugins/insane-design-codex/.codex-plugin/plugin.json
{
  "name": "insane-design-codex",
  "version": "0.5.5",
  "description": "Codex-native design system analyze / apply / build / export — extract real CSS into design.md + report.ko.html, apply a design to an existing project, scaffold new artifacts, and export DTCG tokens.json.",
  "author": {
    "name": "fivetaku",
    "url": "https://github.com/fivetaku"
  },
  "homepage": "https://github.com/fivetaku/gptaku-plugins-codex/tree/main/plugins/insane-design-codex",
  "repository": "https://github.com/fivetaku/gptaku-plugins-codex",
  "license": "MIT",
  "keywords": [
    "design-system",
    "css-analysis",
    "design-tokens",
    "design-md",
    "report",
    "codex"
  ],
  "skills": "./skills/",
  "interface": {
    "displayName": "Insane Design Codex",
    "shortDescription": "Analyze, apply, build, and export real design systems in Codex",
    "longDescription": "Package the Codex-native `insane-design` (analysis + DTCG export), `insane-apply`, and `insane-build` skills with the bundled example corpus, helper scripts, starter components, and the v3.2 `design.md` contract. Menu selections use the numbered-options chat pattern instead of card UIs; the deeper verifier is an opt-in background sub-agent spawn.",
    "developerName": "GPTaku",
    "category": "Coding",
    "capabilities": [
      "Interactive",
      "Read",
      "Write"
    ],
    "websiteURL": "https://github.com/fivetaku/gptaku_plugins",
    "privacyPolicyURL": "https://github.com/fivetaku/gptaku_plugins",
    "termsOfServiceURL": "https://github.com/fivetaku/gptaku_plugins",
    "defaultPrompt": [
      "Analyze this site and generate a reusable design.md plus report.ko.html.",
      "Apply the stripe design.md to my existing landing page, keeping the content.",
      "Build a new landing page from this design.md and the starter components.",
      "Export this design.md frontmatter to a DTCG tokens.json."
    ],
    "brandColor": "#0B1020",
    "composerIcon": "./assets/insane-design-codex.svg",
    "logo": "./assets/insane-design-codex.svg",
    "screenshots": []
  }
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[insane-design-codex on Agent Plugins Marketplace](https://pluginsmp.com/plugins/insane-design-codex)