Impeccable
Agent Skills · Free + paid
20+ design skills for audit, polish, animate, and harden
At a glance
- Korean
- None (English and a few others only)
- Available on
- CLI
- Open source
- Apache-2.0
- GitHub
- 80,896 stars · Apache-2.0
What is Impeccable?
Impeccable is a design guidance skill for AI coding agents that helps build screens from scratch, improve existing screens, and stick to a design system. It provides 1 skill and 24 commands (polish, audit, critique, distill, animate, and more), live iterative editing in the browser, and 59 deterministic check rules that catch common mistakes in AI-generated frontends. Running /impeccable init records product information (PRODUCT.md) that later commands use. It installs in multiple coding tools, including Codex CLI, Claude Code, GitHub Copilot, Cursor, and Gemini CLI.
- 24 commands: a shared design vocabulary including polish, audit, critique, distill, animate, bolder, and quieter
- 59 deterministic check rules + LLM critique check (the CLI and browser extension run without an LLM or API key)
- Record the product, audience, and goals in PRODUCT.md with /impeccable init
- /impeccable live: iterate by comparing element variants in the browser
- Generate DESIGN.md from existing code and extract components and tokens into a design system
- harden: strengthen error handling, i18n, text overflow, and edge cases
Who uses Impeccable and for what
- Build a new page (e.g., a sign-up page) with an AI coding tool, from design to implementation
- Polish an existing page (e.g., a pricing page) or review it before launch
Pricing
Open source (free)
Mostly distributed as free plugins/skills shared by the community
Estimate based on AI knowledge - please verify on the official site
AI tools similar to Impeccable (alternatives)
Impeccable vs. alternatives at a glance
| AI | Pricing | Combos on the map | Connected tools | Free | Cheapest monthly | Korean |
|---|---|---|---|---|---|---|
| Impeccable | Free + paid | 0 | 5 | — | — | No |
| Canvas Design | Free + paid | 0 | 5 | Yes | — | — |
| Frontend Design | Free + paid | 0 | 5 | Yes | — | — |
| Theme Factory | Free + paid | 0 | 5 | Yes | — | — |
| Web Artifacts Builder | Free + paid | 0 | 5 | Yes | — | — |
4 of these 5 tools have a free plan.
Combo and connection counts are based on the relationships recorded on AI Galaxy Map (2026-10-26); they are not a quality ranking.
Impeccable on AI Galaxy Map
- One of 23 AI tools in the Agent Skills field.
- Connected to 5 other tools — #1 in its field.
Frequently asked questions
Can I use Impeccable for free?
Open source (free). Prices can change, so check the official site before paying.
What AI can I use instead of Impeccable?
Tools that do the same job, such as Canvas Design, Frontend Design, Theme Factory, Web Artifacts Builder, are connected to it on the map.
Can I use Impeccable in Korean?
None (English and a few others only)
Sources (official pages)
Checked on the official pages on 2026-10-14. Prices and features can change, so check the official site again before paying.