Impeccable

Once installed, every command runs through the single /impeccable skill: ` /impeccable audit # Find issues /impeccable polish # Final cleanup /impeccable distill # Remove complexity /impeccable critique # Full design review ` Type /impeccable alone to see the full command list. Most commands accept an optional argument to focus on a specific area: ` /impeccable audit the header /impeccable polish the checkout form ` If you reach for one command often, pin it with /impeccable pin audit to get /audit as a standalone shortcut. Note: Codex uses skills here, not /prompts: commands. Open /skills or type $impeccable. Repo-local installs live in .agents/skills/; user-wide installs live in ~/.agents/skills/. GitHub Copilot uses .github/skills/. Restart the tool if a newly installed skill does not appear.

Design guidance for AI coding agents. 1 skill, 23 commands, live browser iteration, and 44 deterministic detector rules for AI-generated frontend design. > Quick start: From your project root, run npx impeccable install, then run /impeccable init inside your AI coding tool. Full docs: impeccable.style.

Anthropic's frontend-design was the first widely-used design skill for Claude. Impeccable started from there. Every model trained on the same SaaS templates. Skip the guidance and you get the same handful of tells on every project: Inter for everything, purple-to-blue gradients, cards nested in cards, gray text on colored backgrounds, the rounded-square icon tile above every heading. Impeccable adds: • One setup flow. /impeccable init writes PRODUCT.md and offers DESIGN.md, so later commands know the audience, brand/product lane, voice, anti-references, colors, type, and components. • 23 commands. A shared design vocabulary with your AI: polish, audit, critique, distill, animate, bolder, quieter, and more. • 44 deterministic detector rules plus LLM-only critique checks. The CLI and browser extension run the deterministic rules with no LLM and no API key.

The skill installs as one command: `bash /impeccable <command> <target> ` Start every new project with: `bash /impeccable init ` init asks whether the surface is brand (marketing, landing, portfolio) or product (app UI, dashboard, tool), then writes design context that every later command reads.