Shared design vocabulary
Critique a layout, refine typography, or simplify a busy screen. Give your agent a direction and iterate on the details together.
Impeccable teaches AI agents to speak design. A designer, engineer, or founder steers in plain language and watches the work change live in the browser.
A shared design vocabulary for you and your agent.
Impeccable started as an open-source design skill for AI coding agents. It gives builders and agents a shared design vocabulary, persistent project context, deterministic quality checks, and a live browser loop for visual iteration. Changes go into your actual codebase, ready for you to review, test, and ship.
Persistent project context
Your design intent and decisions stick around, so the agent stays consistent across sessions instead of starting from zero every time.
Deterministic quality checks
Flag recurring design anti-patterns as your agent edits the interface. Deterministic checks complement the agent’s critique and your own review.
Live browser loop
Point at the work, steer it, compare variants, and accept changes back into source. Watch it change live, in the browser, where it ships.
Start in your project.
Run the installer from your project folder and choose your coding tool.
npx impeccable installReload your coding tool, then run /impeccable init in the agent chat to set up your project context. Enable automatic checks with /impeccable hooks on and complete your tool’s hook approval steps.
Prefer a plugin? See the installation options for your tool. Impeccable is also built into the GitHub Copilot app; enable it in Settings → Experimental.
Installation options and setup guideNext: Impeccable PRs
Coming soon: automated design review for pull requests. Bring design-system checks and interface critique into the review process, before changes ship.