The core loop

Designing with Impeccable

Shipping a real interface is a loop. Four phases, each with one place to begin.

01 · Start

From a blank file to a designed feature.

Three commands, one arc. /impeccable teach writes the brief, once per project. /impeccable shape drafts a reference you can look at. /impeccable craft codes toward what you can see. Words, then pictures, then code.

teach · in words
PRODUCT.md Written by teach
Register Product. Design serves the task.
Users SREs on call, reading fast, often in the dark.
Voice Calm, clinical, no hype.
Anti-references Purple gradients. Glassmorphism. Hype.

Teach runs a short discovery interview about audience, register, voice, and anti-references. It writes PRODUCT.md and, if there's code to scan, a DESIGN.md. Every later command reads both files before generating.

shape + craft · in pictures

Since image generation crossed the reference-quality threshold, shape can draft a brand toolkit you review at a glance, and craft can code toward a hi-fi mock instead of a paragraph. Neo Mirai is the full loop: generated direction, implemented page, browser iteration.

Auto-generated brand toolkit plate: identity lockups, colour palette, type specimens, icon system, and application mocks for a fictional AI design conference, rendered in warm earth tones.
Shape

Brand toolkit. Identity, palette, type, icon language, applications, social tiles, UI direction. One plate, reviewable at a glance. Approved decisions get written into DESIGN.md.

Auto-generated hi-fi landing-page mock: a long vertical editorial comp for a fictional Tokyo AI design conference, in warm earth tones with committed serif display type.
Visualize

Hi-fi reference. The destination, before the first line of CSS. Craft codes toward a concrete image, not an abstract brief. That is the step change.

Full-page screenshot of the implemented Neo Mirai website.
Ship

Live build. The mock became semantic markup, regenerated assets, responsive fixes, nav state, speaker carousel behavior, and browser-verified polish. Open the live site.

The first two plates were generated by OpenAI GPT Image 2. The third is the implemented Neo Mirai page. Gemini Nano Banana Pro, Imagen 4 Ultra, and Grok Imagen work the same way, via Codex, Gemini CLI, and compatible harnesses.

02 · Iterate

Refine what's there.

Once something exists, you're iterating. There are two paths: specific commands for named dimensions, or Live Mode for visual exploration.

Command line

When the edit has a name.

Type a command and let the skill encode a specific discipline. Best when you know the word: typography, layout, color, motion.

Live Mode

When the edit is easier to point at.

Pick any element in the browser, draw, type, hit Go. Three production-quality variants. Accept one and it writes to source.

When to reach for which
Fix something "off" that you can't name /impeccable live
Apply a specific discipline: type, layout, color, motion /typeset · /layout · /colorize · /animate
Explore three directions side by side /impeccable live
Ask "is this any good?" /impeccable critique
Bring a safe design to life, or tone a shouting one down /bolder · /quieter
03 · Polish

The pre-ship gauntlet.

Three commands in sequence before anything ships. They don't redesign; they find what still needs to change.

Pre-ship 03 · 04

Score it.

Five dimensions scored 0 to 4: accessibility, performance, theming, responsive, anti-patterns. Findings tagged P0 to P3.

Rewrite the copy.

Labels, error messages, empty-state prose, microcopy. Tuned to the audience from PRODUCT.md.

Stress-test reality.

60-character names, German product titles, prices in the billions, 500s, offline. Production data is messy.

04 · Maintain

Design debt is real. Pay it down.

Features ship, drift happens. Two commands close the gap before it solidifies.

/impeccable extract

Consolidate drift.

Find patterns used three or more times with the same intent. Propose tokens and primitives.

/impeccable document

Re-capture the system.

Scans tokens, components, and rendered output. Writes a spec-compliant DESIGN.md.

Two lanes

Brand, or product.

Two defaults with different vocabularies. Impeccable picks the lane from your task cue and PRODUCT.md before every command, so typeset, animate, colorize, and friends adjust their output to match. You rarely need to set it by hand.

Brand

Design IS the product. Marketing, landing, editorial, long-form, portfolio.

Product

Design serves the task. App UI, admin, dashboards, tools.

Read the brand-vs-product tutorial →
Common mistakes

What to avoid.

An anti-patterns list, for using the anti-patterns tool.

  • Running both Impeccable and Anthropic's frontend-design skill

    Anthropic still promotes their skill in Claude Code, but it's been unmaintained and is now behind on recommended patterns. Run both and they collide on vocabulary, cancelling each other out. Pick one.

  • Pinning every command

    Pinning brings back /audit, /polish, /critique as shortcuts. Pin everything and you've re-exploded the / menu the v3.0 consolidation cleaned up. Pin the two or three you reach for daily.

  • Skipping teach

    Commands still run without PRODUCT.md and DESIGN.md. They default to generic SaaS patterns. The floor is meaningfully higher with context. Run teach once; every later command benefits.

  • Treating it like a linter

    Impeccable is an opinionated design partner, not a validator. It has a point of view. Push back with a reason and it'll work with you. Ignore the opinion without a reason and output gets worse, not better.