Impeccable

Impeccable is a cross-provider AI skill pack for developers and product teams who generate UI with AI harnesses and want more consistent, well-designed frontend output.

Key capabilities include:

• 20 user-invocable commands (for example /audit, /critique, /polish, /typeset, /arrange, /animate) that guide an AI through specific design and UX tasks, from typography and layout refinement to motion and onboarding.
• A curated library of design patterns and anti-patterns across typography, color and contrast, layout and spacing, motion, interaction, responsive behavior, and UX writing.
• Project-level design context via /teach-impeccable, which collects and saves context in a .impeccable.md file so other commands can apply consistent decisions.
• Multi-tool installation and updates with npx skills add pbakaus/impeccable and npx skills update, plus a universal ZIP and a Claude Code plugin install path.

Pricing: Not specified.

What makes it notable is its focus on turning “good design prompts” into repeatable, tool-compatible commands and explicit anti-pattern avoidance, with support for multiple AI coding environments (including Cursor, Claude Code, Gemini CLI, and Codex CLI).