The missing design vocabulary for agents.

Turn AI slop into interfaces you’re proud to ship. Impeccable gives your agent the design expertise to build from scratch, improve what you have, and stay true to your design system.

It fucking works beautifully. It's so cool.
Ben Davis@davis7
Impeccable > Claude design
ImageMertcan Yüzer@MertcanDYuzer
Uninstall whatever frontend skill you're using. Replace it with Impeccable.
ImageAdrien Ninet@adrien_ninet
Impeccable is the most slept on tool for incorporating design thinking into coding workflows.
ImageAnish Acharya@illscience
When anyone asks me about design for frontend I always recommend @impeccable_ai plugin. I'm very picky with design and it's become part of my everyday stack.
ImageCathryn Lavery@cathrynlavery
This is probably what Figma Make should be.
ImageIan Andrews@IanAndrewsDC
Impeccable is hands down the best UI design skill out there. I use it daily and recommend it to others as well. Great work! 💪
ImageCarl Rannaberg@carlrannaberg
It has taken my ability to ship complex and beautiful designs to another level.
ImageBowTiedGroundHog@BowTiedGroundHo
Impeccable is the best skill I've used this year. Can't believe it's free.
ImageIvan Leo@ivanleomk
Impeccable is so so good. I love it.
ImageWatson Cyrus Anikwai@wanikwai
I will fight anyone who say anything bad against impeccable, just let me know who they are.
ImageFaizan Khan@faizan10114
I've tried and used many UI design tools that enhance AI aesthetics, and this one is the best and most stunning I've ever used.
ImageHickerzed@Hicker_Moledao
Jorks ur shit crazy style
ImageTony Ge@largePrawn
@impeccable_ai is really good and is the first time I really felt a 10x productivity boost with AI. And I make an effort to try as many tools as possible.
ImageThomas Karatzas@karatzas_thomas
TIL you are the guy behind Impeccable. I owe like 3 customer conversions to you. Thank you for such an amazing tool.
ImageFaizan Khan@faizan10114
Shipped a landing page in 2 hours using @conductor_build & @impeccable_ai. From idea to prod faster than most people pick a font ;))
ImageMikita@MikitaHQ
THIS. This shit works.
ImageServando@vandotorres
This is the best plugin ever created imo.
ImageVishveshwar Jatain@eclecticV
Claude skills are mostly BS. These ones are the rare, truly useful ones.
ImageNik@nik_ska
How is this free?? 🔥🔥
ImageZohaib A.@HeyZohaib
It's crazy that @impeccable_ai is free. It replaces some paid products while being better than them.
ImageSankalp Mukim@IceCreamChai
@impeccable_ai has been a huge help at all levels from prototyping to production. It has really upped our game. I can't see anything out-of-the-box like this replacing it.
ImageMichael Hedgpeth@michaelhedgpeth
Impeccable is the best frontend design skill I've used rn. It clears the alternatives by a mile.
Imagemartta_xu@littlemartta
This is incredible. Developer and Designer workflows are changing so quickly and for the better.
ImagePaul Kinlan@Paul_Kinlan
Recently used this skill for my personal portfolio and was blown away. Iterated multiple times on Claude code and hardly touched Figma.
ImageJashan Gupta@JASHANGUPTA15
This is 🔥. My landing page looked 100% vibe coded. I think it looks very decent now. I had fun in the process.
ImageSidney Hori Hawthorne@sid_hori
I'm glad that we never need to touch Figma again. Just run 8 agents using @paper w/ Impeccable's Claude skills.
Imagebillzh@billzh
Impeccable is such a great skill. I use it multiple times a day every day and it makes a huge difference.
ImageJohn Ennis@johnennis
Upgraded an internal tool with better UI, UX, branding and reduced AI slop. This established a standard for the project itself.
ImageSomesh@devsome_sh
It's so good.
ImageAlejandro Reyes@alejandroreyes
This is the only set of agent skills I ever found use in. Thanks for making this.
ImageEmre Coklar@EmreCoklar

Detects and removes AI slop.

61 checks ↗ catch the defaults agents keep reaching for before they become your design.

Start with what you want to change.

Describe what you want. Impeccable brings the design expertise.

typeset

/impeccable typeset
refinefader

Make text easier to read, with clearer headings, better sizing, and comfortable line lengths.

  1. Title and button compete for attention.
  2. Extra details distract from inviting your team.
  3. Pending invitations look like active teammates.
How to use this command →
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Choose a command below. Drag a slider to compare.Scroll sideways to browse commands. Drag a slider to compare.

create
evaluate
refine
typeset
layout
colorize
animate
delight
bolder
quieter
overdrive
simplify
distill
clarify
adapt
harden
system

Impeccable in action

main Claudex Cocursor
Working tree
You

/impeccable polish the pricing page. Keep our sharp corners and sober palette. Remove the AI tells.

Agent

I’ll polish the page within its existing design system, then run the detector before I hand it back.

DESIGN.md loadedExisting system preserved

4 tells foundAI beige · italic serif · side-tab · pulsing dot

Written to source0 detector findings

You

/impeccable live

Agent

Starting Live Mode against the running app. I’ll open the page, then wait for element picks and page-level steering.

Live helper startedPicker injected into the app

localhost:3000 openedProduction source connected

Waiting for inputPick an element or steer the whole page

/impeccableChoose a command
localhost:3000

Give your design a different starting point.

Explore human-reviewed design directions, each with its own visual rules. Impeccable weighs these against ideas drawn from your product, then builds around the strongest fit.

Why explore this way? Read the research →

Built around your project.

Respects your design system.

Build and refine with your existing colors, components, and rules. New pages feel like part of the same product.

/impeccable polish : scanning codebase
Walking src/…
src/styles/tokens.css  14 colors, 6 font sizes, 7 spacing steps
tailwind.config.ts  theme.extend merged
src/components/  34 components
    · Button: primary, secondary, ghost, destructive
    · Card: 3 variants, 8px / 16px radii
    · Input, Select, Dialog, Toast, Table…
DESIGN.md  brand rules loaded
Using your existing design rules.

Tell it what matters to your users.

Explain your users and their goals once. Impeccable saves that context in PRODUCT.md and reads it before design work.

Keep your design decisions.

/impeccable document records your visual system in DESIGN.md, ready for the next feature or the next agent.

Example DESIGN.mdGoogle Stitch spec
Primaryoklch(78% .12 82)
BodyRegular 400
Aa
Avenir Next
Components34
PrimaryGhost
Email address

Design for the job at hand.

Help people decide on a landing page, or get things done in a dashboard. Impeccable designs for the task.

  • Persuade
  • Operate
  • Read
  • Experience

Catch slop as your agent works.

The design hook checks UI edits and sends findings back to your agent. It runs in code, without an AI model or API key.

  1. Agent edits the pageHero.tsx
  2. Detector reports issuesAI beigeClipped label
  3. Agent fixes themHero.tsxSecond pass
  4. No issues detected0 findings

Set up hooks for your web project →

Install Impeccable

Two steps. Then tell your agent what you want to build or improve.

Install via
npx impeccable install

If you use the GitHub Copilot app, Impeccable is built in. Enable it in Settings → Experimental, then set up your project.

Install options and tool support

Choose your coding tool and install for this project or all your projects. The installer selects the build for your tool.

impeccableClaude Codehooks + subagentCursorpre-edit hookGemini CLIModel-specific design guidanceCodex CLIModel-specific design guidance

Each build includes the file locations and integrations your tool supports, plus guidance for common design mistakes made by its models.

Get started

/impeccable init

Update later with npx impeccable update

Getting started · Designing with Impeccable · Command reference · Changelog · FAQ