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Use for distinctive production-grade websites, landing pages, and interactive web experiences with strong design and QA discipline.
Codex 또는 Claude로 설치 이 Prompt를 복사해 Codex, Claude 또는 다른 어시스턴트에 붙여 넣으면 Skill 페이지를 검토하고 설치를 진행할 수 있습니다.
| name | website-building |
| description | Use for distinctive production-grade websites, landing pages, and interactive web experiences with strong design and QA discipline. |
| defaultProjectInstall | true |
| defaultProjectInstallOrder | 80 |
Build distinctive, production-grade websites where every site looks DIFFERENT. Every choice — type, color, motion, layout — must be derived from the subject matter. Run the palette generator (bun run shared/generate-palette.ts "keywords") to create a unique color scheme for each project. NEVER reuse the same palette across sites.
This skill covers everything for web projects. Read the sub-files in this directory as needed based on your project type. For web applications, also read skills/webapp/SKILL.md.
Universal design principles (color philosophy, default palette, font selection) are shared with other skills via design-foundations. This skill's shared files extend those foundations with web-specific implementation (CSS variables, responsive tokens, base stylesheets). You don't need to load design-foundations separately — the web-specific versions in shared/ are comprehensive.
Use read with the full path, e.g. skills/website-building/shared/01-design-tokens.md
Step 1: Identify project type and load domain-specific guidance:
| Project Type | Action | Examples |
|---|---|---|
| Informational sites | read skills/website-building/informational/informational.md | Personal sites, portfolios, editorial/blogs, small business, landing pages |
| Web applications | read skills/webapp/SKILL.md | SaaS products, dashboards, admin panels, e-commerce, brand experiences |
| Browser games | read skills/website-building/game/game.md + skills/website-building/game/game-testing.md | 2D Canvas games, Three.js/WebGL, HTML5 games, interactive 3D experiences |
Step 2: Read shared files — read skills/website-building/shared/01-design-tokens.md and skills/website-building/shared/02-typography.md first (mandatory for ALL project types, including webapp). These establish the Kortix design system defaults and typography rules that apply universally. For web applications and dashboards, skip files marked with † below — those contain implementation details pre-configured in the fullstack template.
If the user says just "website" or "site" with no detail, ask what type or default to informational.
shared/) — Every project| File | Covers | Load |
|---|---|---|
shared/01-design-tokens.md | Type scale, spacing, Kortix palette, base.css | Always |
shared/02-typography.md | Font selection, pairing, loading, blacklist | Always |
shared/04-layout.md | Spatial composition, responsive, mobile-first | Always † |
shared/05-taste.md | Skeleton loaders, empty/error states, polish | Always |
shared/08-standards.md | Accessibility, performance, anti-patterns | Always |
shared/09-technical.md | Project structure, sandbox, deploy, checklist | Always † |
shared/head-defaults.html | Attribution block for <head> | Always † |
shared/03-motion.md | Scroll animations, Motion library, GSAP SVG plugins, hover/cursor | When animated |
shared/06-css-and-tailwind.md | Tailwind CSS v3, shadcn/ui, modern CSS | When using Tailwind |
shared/07-toolkit.md | CDN libraries, React, Three.js, icons, maps, SVG patterns/filters, esm.sh | When choosing libs |
shared/10-charts-and-dataviz.md | Chart.js, Recharts, D3, KPIs, sparklines | When data viz needed |
shared/11-web-technologies.md | Framework versions, browser compatibility | When checking compat |
shared/12-playwright-interactive.md | Persistent Playwright browser QA, screenshots, visual testing | When testing |
shared/19-backend.md | FastAPI/Express/Flask servers, WebSocket, SSE, port forwarding | When backend needed |
shared/20-llm-api.md | LLM/AI API integration reference | When site uses AI APIs |
All paths are relative to skills/website-building/.
† Skip for webapp and dashboards — implementation details pre-configured in the fullstack template. Design-tokens and typography are NOT skipped — they provide the authoritative design system defaults and font selection guidance for all project types.
| File | When to load |
|---|---|
read skills/webapp/SKILL.md | SaaS, dashboard, admin, e-commerce, brand experience (fullstack template skill) |
skills/webapp/dashboards.md | Dashboard or data-dense interface (companion to webapp) |
informational/informational.md | Personal site, portfolio, editorial, small business, landing |
game/game.md | Browser game, Three.js, WebGL, interactive 3D |
game/2d-canvas.md | 2D Canvas game (companion to game.md) |
game/game-testing.md | Any browser game — load alongside game.md |
Interactive QA: Read skills/website-building/shared/12-playwright-interactive.md for persistent browser automation with Playwright (screenshots, functional testing, visual QA). Required for game testing, useful for any complex site.
Read ALL of these in one batch — they are mandatory for every project:
read("skills/website-building/shared/01-design-tokens.md")
read("skills/website-building/shared/02-typography.md")
read("skills/website-building/shared/04-layout.md")
read("skills/website-building/shared/05-taste.md")
read("skills/website-building/shared/08-standards.md")
Then load the domain-specific file (informational, webapp, or game) from Step 1 below.
Run the palette generator with keywords describing the subject:
bun run skills/website-building/shared/generate-palette.ts "subject keywords here"
Pick the best harmony, customize if needed.
Build the site with the generated palette, following all the loaded design guidance.
Start a local server with pty_spawn, then show its plain URL:
# static site (no build step)
python3 -m http.server 3000 --directory /workspace/project
# app: run its dev server instead, e.g. npm run dev
Then show(type: "url", url: "http://localhost:3000/"). The platform auto-detects and proxies any localhost port — no special URL format needed.
skills/website-building/shared/12-playwright-interactive.md to screenshot at desktop (1280px+) and mobile (375px). Compare against references. This is mandatory, not optional. See Visual QA below.Every project gets a custom inline SVG logo. Never substitute a styled text heading.
currentColor for dark/light mode.aria-label, viewBox, fill="none", currentColor strokesFor SVG animation (DrawSVG, MorphSVG), see shared/03-motion.md. For SVG patterns/filters, see shared/07-toolkit.md.
Every deployment must pass visual QA. Screenshots are quality gates.
Read skills/website-building/shared/12-playwright-interactive.md for all visual QA. Playwright provides a persistent browser session for screenshots, interaction testing, and viewport verification.
Cycle: Build → Playwright QA → Evaluate → Fix → Repeat → Deploy when ready
After building each page:
QA failures: text overflow, inconsistent spacing, off-token colors, missing dark mode, squished mobile, generic AI look, placeholder content, missing logo.
Every site should have a visual identity derived from its content. Do not skip to the Kortix fallback palette. The Kortix palette is a last resort for when both inference and asking have failed — not a convenient default.
informational.md, webapp/SKILL.md, game/game.md) has an Art Direction table mapping site/product types to concept-driven directions and token starting points. Use these as a springboard.When inference yielded no clear direction AND the user was asked but gave no style guidance, use defaults from skills/website-building/shared/01-design-tokens.md with:
--text-3xl/--text-hero are for informational site heroes only.See skills/website-building/shared/08-standards.md for the full anti-patterns list.
Use real local preview commands first and only publish with the target project's actual deployment workflow. See skills/website-building/shared/09-technical.md for the recommended preview and delivery flow.
Before taking a site live, read skills/website-building/website-publishing/SKILL.md. It covers the publish guardrail (explicit user opt-in — never publish unprompted), runtime-only dependencies that won't survive a standalone deployment, and the mandatory pre-publish security review.
pty_spawn for the preview or dev server.How to send a notetaker bot into a video meeting (Google Meet / Zoom / Teams) and work with what it captures — join a call, confirm it got admitted, monitor its lifecycle, pull the speaker-attributed transcript, and produce a recap with decisions + action items, then remove it. Drives the `meet` CLI, which runs through the Kortix Executor (the meeting-bot provider key is resolved server-side; nothing in the sandbox). Load this WHENEVER the user asks to join / attend / record / transcribe / take notes on a meeting, "send a notetaker", "summarize that call", drops a Meet/Zoom/Teams link, or asks how to do anything with a meeting bot.
Kortix brand + design system: the rules, tokens, and component library for building any Kortix frontend UI (apps/web). Load this WHENEVER you create or edit a page, screen, component, list, card, badge, avatar, modal, form, empty state, toast, tooltip, or any visual surface in apps/web. Always load the companion skill make-interfaces-feel-better (apps/web/.agents/skills/make-interfaces-feel-better/SKILL.md) in the same session — brand/tokens here, polish/motion/haptics there. Source of truth: globals.css + the live /design-system page + src/components/ui + the reference implementations listed below.
How to roll Kortix PRODUCTION back to an older already-released version — the inverse of a release. Covers the one-dispatch rollback-prod.yml engine, the per-surface mechanics (API + gateway = Argo image-tag swap; frontend = Vercel promote), the all-important Vercel frontend behavior (why a backend-only push can 'clobber' a FE rollback, and the 'don't rebuild the FE for backend-only pushes' skip that fixes it), the DB/migration-drift safety check that is the real blocker, and how a later promote returns prod to latest. Load WHENEVER the user wants to roll back / revert / downgrade / 'go back a version' on prod, asks how the rollback or the frontend clobber/skip behavior works, or needs to run rollback-prod.yml. Pairs with kortix-release (the forward direction).
Create, manage, validate, preview, and export HTML presentation slides (1920x1080). Load this skill when you need to build a slide deck, export to PDF/PPTX, or preview slides in a browser.
Create, manage, validate, preview, and export HTML presentation slides (1920x1080). Load this skill when you need to build a slide deck, export to PDF/PPTX, or preview slides in a browser.
Canonical reference for a Kortix project: the platform model (repo-native projects, sessions on ephemeral branches, the strict boundary between `kortix.toml` and OpenCode config under `.kortix/opencode/`); the full `kortix.toml` manifest (keys, trigger fields, secrets contract, `[[apps]]` deploy surface); the complete `kortix` CLI (commands, flags, the project-scoped token model, the in-sandbox `KORTIX_TOKEN`); the change-request (CR) system for landing session work on `main` (an agent MUST open a CR to merge); the session sandbox runtime (which supports Docker and Docker-in-Docker); and the OpenCode runtime (agents, skills, commands, tools, plugins, MCP servers, permissions, AGENTS.md rules, models). Load whenever the user asks how Kortix works, about `kortix.toml`, the `kortix` CLI, anything under `.kortix/opencode/`, how to merge/ship/land work on `main`, change requests/CRs/PRs, or to author/edit any OpenCode primitive.