The missing design vocabulary for agents.

Impeccable strips the slop from AI-generated interfaces, gives you precise commands to steer, and iterates visual variants live in your product.

Before
After
It fucking works beautifully. It's so cool.
Ben Davis@davis7
Impeccable > Claude design
Mertcan Yüzer@MertcanDYuzer
Uninstall whatever frontend skill you're using. Replace it with Impeccable.
Adrien Ninet@adrien_ninet
Impeccable is the most slept on tool for incorporating design thinking into coding workflows.
Anish 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.
Cathryn Lavery@cathrynlavery
This is probably what Figma Make should be.
Ian 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! 💪
Carl Rannaberg@carlrannaberg
It has taken my ability to ship complex and beautiful designs to another level.
BowTiedGroundHog@BowTiedGroundHo
Impeccable is the best skill I've used this year. Can't believe it's free.
Ivan Leo@ivanleomk
Impeccable is so so good. I love it.
Watson Cyrus Anikwai@wanikwai
I will fight anyone who say anything bad against impeccable, just let me know who they are.
Faizan 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.
Hickerzed@Hicker_Moledao
Jorks ur shit crazy style
Tony 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.
Thomas 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.
Faizan 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 ;))
Mikita@MikitaHQ
THIS. This shit works.
Servando@vandotorres
This is the best plugin ever created imo.
Vishveshwar Jatain@eclecticV
Claude skills are mostly BS. These ones are the rare, truly useful ones.
Nik@nik_ska
How is this free?? 🔥🔥
Zohaib A.@HeyZohaib
It's crazy that @impeccable_ai is free. It replaces some paid products while being better than them.
Sankalp 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.
Michael Hedgpeth@michaelhedgpeth
Impeccable is the best frontend design skill I've used rn. It clears the alternatives by a mile.
martta_xu@littlemartta
This is incredible. Developer and Designer workflows are changing so quickly and for the better.
Paul 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.
Jashan Gupta@JASHANGUPTA15
This is 🔥. My landing page looked 100% vibe coded. I think it looks very decent now. I had fun in the process.
Sidney 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.
billzh@billzh
Impeccable is such a great skill. I use it multiple times a day every day and it makes a huge difference.
John Ennis@johnennis
Upgraded an internal tool with better UI, UX, branding and reduced AI slop. This established a standard for the project itself.
Somesh@devsome_sh
It's so good.
Alejandro Reyes@alejandroreyes
This is the only set of agent skills I ever found use in. Thanks for making this.
Emre Coklar@EmreCoklar

Detects and removes AI slop.

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

Explore all 61

The Language

23 commands give you a shared design vocabulary with your AI. Each names one kind of intervention: /typeset for type, /distill for complexity, /audit for production quality. Pick any to see it in action, or browse the full reference →

Give direction in chat. Refine the result on the page.

Every change lands in your source.

main Claudex Cocursor
Agent threadWorking 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
BrowserLive preview
localhost:3000
Generating variants…
1 / 3
Variant 3 written to source
Steer

Worlds on the table

Ask a model to be creative and it builds its favorite idea, every run. So Impeccable deals challengers: human-reviewed worlds, each a complete graphic system with laws of its own. They compete against the ideas the model derives from your product, and the direction that wins takes the build, fully committed. The hand below is dealt live from the 177 highest-rated worlds in the deck by the same roll API the skill uses.Why dice? Read the research →

Psst… the deck grows every week in Pro →

Ready to drop in

01

Respects your design system.

Inherits your tokens, components, and conventions instead of overwriting them. New work fits the system, not the model's defaults.

/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
Matching your system. Not inventing one.
02

Real product context.

Captures the brief once, in PRODUCT.md. Every command reads it before designing.

PRODUCT.mdLoaded on every command
UsersSREs on call, reading fast, often in the dark.
ModeOperate. Design serves the task.
Brand voiceCalm, clinical, no hype.
Anti-referencesPurple gradients. Glassmorphism. "Boost your productivity."
03

Travels as DESIGN.md.

/impeccable document writes one in the Google Stitch format. Your visual system becomes portable.

DESIGN.mdGoogle Stitch spec
Primaryoklch(78% .12 82)
WordmarkSpaced 400
IM
Avenir Next
BodyRegular 400
Aa
Avenir Next
Components34
PrimaryGhost
Email address
Readable by every DESIGN.md-aware tool.
04

Knows what the surface is for.

A landing page should persuade. A dashboard should help someone work. Impeccable names the mode before it designs.

PersuadeWin attention
OperateComplete a task
ReadBuild understanding
ExperienceLet the work lead
05

Block slop before it ships.

Hooks inspect each UI edit and send findings straight back to the agent. The same detector can fail a PR.

Edit · Hero.tsxhook active
1Edit landsAgent updates the hero.
2Hook returns two findingsAI beige · clipped label
Agent corrects the fileSecond pass: clean
Deep stop audit0 findings · PR ready

Explore the detector lab →

Get started

Install via

On the GitHub Copilot app? Impeccable is built in. Skip the install and enable it under Settings → Experimental.

npx impeccable install

Installs the build tailored to your harness and model. Requires Node 22.12+. Some harnesses need one trust step after install →

Why one command, many builds
impeccableClaude Codehooks + subagentCursorpre-edit hookGemini CLI+ Gemini-tuned slop rulesCodex CLI+ Codex-tuned slop rules

Same skill, recompiled per target. The part that matters: builds for models with known tells carry extra slop rules banning that model's habits. The Gemini build kills its image-on-hover motion; the Codex build refuses ghost-cards and over-rounding. Native hook wiring and a subagent ship too, where the tool supports them.

First run · in your agent chat
/impeccable init
Update
npx impeccable update

Works with Cursor, Claude Code, GitHub Copilot, Gemini CLI, Codex CLI, Grok Build, and every other major AI coding harness.

Read the setup guide · See what's new · Got questions?

Learn more: Getting started · Designing with Impeccable · command docs