Directory / Agent skill / Impeccable
Impeccable
Design guidance for AI coding agents: one skill with 24 commands (polish, audit, critique, distill and more), live browser iteration, and 62 deterministic detector rules that flag AI-generated design tells.
💲 Open source (Apache-2.0). The CLI and browser extension run the deterministic rules with no LLM and no API key. Source: github.com (checked Oct 26, 2026).
Pros & cons
👍 Pros
- Works across Claude Code, Codex, Cursor, Copilot, Gemini CLI, OpenCode and more
- /impeccable init records product context in PRODUCT.md so later commands stay on-brand
- Deterministic slop detector runs without an LLM or API key
👎 Cons
- 24 commands take some learning
- Opinionated style rules (e.g. avoids Inter, pure black) may clash with an existing brand
Latest release
Engine v0.1.17; trending on GitHub
Impeccable is back on GitHub's daily trending list (about 88k stars) after skill v4.7.0 (Oct 19) and detector engine v0.1.17 (Oct 23). Install with npx impeccable install. Source ↗
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