Impeccable
Impeccable is a set of design commands for coding agents that steers, reviews, and polishes interfaces to avoid generic AI-looking design.
What it is good for
- Fixing generic-looking AI-generated web page designs
- Reviewing a page's usability and accessibility before shipping
- Adjusting spacing, fonts, and color in an existing interface
- Catching common design flaws in code before it goes live
At a glance
- Who it is for
- Setup
- Adds to an AI app you already use
Level 2 of 5. Connects to Claude, ChatGPT, or a similar app you already have, usually through a settings screen.
- Cost
- Free and open source
- Type
- Skill or plugin
- Tasks
- Works with
- Claude Code, Cursor, Codex CLI, GitHub Copilot, Gemini CLI, OpenCode
Momentum
- Rank this week
- #23
- Best rank
- #23 week 44, 2026
- Stars gained last week
- +11,846
- GitHub stars
- 99,860
GitHub numbers as of Nov 2, 2026. Updated weekly.
Ranking history
Official links
Setup steps are on the official pages. We do not repeat them here, since they change.
Questions
- Is Impeccable free?
- Yes. It is free and open source (Apache-2.0 license).
- Do I need to know how to code to use Impeccable?
- No. Connects to Claude, ChatGPT, or a similar app you already have, usually through a settings screen.
- What does Impeccable work with?
- According to its own documentation, it works with Claude Code, Cursor, Codex CLI, GitHub Copilot, Gemini CLI, and OpenCode.
- What is Impeccable good for?
- Fixing generic-looking AI-generated web page designs, reviewing a page's usability and accessibility before shipping, adjusting spacing, fonts, and color in an existing interface, and catching common design flaws in code before it goes live.
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