{"data":{"slug":"impeccable","name":"Impeccable","tagline":"Apache design language/skills that make AI harnesses better at UI","category":"agents","categoryName":"AI Agents","url":"https://impeccable.style","github":"https://github.com/pbakaus/impeccable","pricing":"open-source","hook":"Impeccable is a design skill + command set for AI coding harnesses: PRODUCT.md truth, 24 /impeccable commands, and 61 deterministic detectors so agents stop shipping Inter-and-purple defaults.","whatsGood":"Apache-2.0 (pbakaus/impeccable). One skill covers craft/init/audit/polish and more; CLI and browser extension run deterministic rules with no LLM key. Installs into Claude Code, Cursor, Codex, Grok, Hermes, and peers via `npx impeccable install`; docs at impeccable.style.","theCatch":"Vs Superpowers and agent-skills packs: Impeccable is a design-language/skills layer for UI quality, not a coding agent and not a general agent-skills monorepo. Node ≥22.18 for the npx installer path; star count is extreme (~70k) — treat momentum as discovery noise until the skill actually changes your harness output.","verdict":"Apache design skill when your coding agent ships samey SaaS UI and you want PRODUCT.md + detectors in-loop; not a substitute for an agent runtime.","addedAt":"2026-09-24","featured":false,"domain":"AI Agents","subSpecialty":"Tooling","subcategory":"Skills","tags":["self-host","permissive","coding-agents","skills","active","fast-stars"],"capabilities":["skills","design","ui"],"surfaces":["Self-host"],"ecosystem":["Node.js","Multi-platform"],"licenseModel":"Apache-2.0","githubStars":82786,"starsPerWeek":1717,"access":"free","archived":false,"repo":{"createdAt":"2025-11-16","pushedAt":"2026-10-19","license":"Apache-2.0","archived":false,"checkedAt":"2026-10-19"}},"related":[{"slug":"claude-code","name":"Claude Code","tagline":"Terminal-first coding agent with deep repository context"},{"slug":"cursor","name":"Cursor","tagline":"The AI-first code editor that understands your codebase"},{"slug":"devin","name":"Devin","tagline":"Autonomous AI engineer for defined engineering tasks"},{"slug":"stagehand","name":"Stagehand","tagline":"AI-native browser automation that mixes code and natural language"},{"slug":"browser-use","name":"Browser Use","tagline":"Open-source framework for LLM-driven browser agents"}],"links":{"self":"/api/gems/impeccable","html":"/gems/impeccable","markdown":"/gems/impeccable.md","category":"/api/gems?category=agents","categoryPage":"/stacks/agents"}}