Impeccable
Apache-2.0 design toolkit that gives coding agents 24 design commands and a 62-rule detector to catch generic AI-generated UI.
Overview
Impeccable, by Paul Bakaus, gained about 7,283 GitHub stars in the week to October 29, 2026, reaching 92.9k. It is a design vocabulary for coding agents, started from Anthropic's frontend-design skill, with 24 commands such as polish, bolder, critique and audit and a rule-based detector with 62 rules for 'AI slop' in interfaces. Running /impeccable init writes a PRODUCT.md read by later commands, while DESIGN.md captures the visual system. A design hook can scan UI files as the agent edits them, and the detector also runs from the CLI, in CI or as a browser extension. About 19 agents are supported, including Claude Code, Cursor, Codex CLI, GitHub Copilot, Gemini CLI and Devin.
This is a sourced directory entry. Features and capabilities are reported in the linked sources; this entry does not document independent Aymorphic testing.
Key features
- 24 commands (polish, bolder, critique, audit and others)
- 62-rule detector runnable from CLI, CI or a browser extension
- PRODUCT.md and DESIGN.md files carry project and visual-system context
- Design hook scans UI files while the agent edits
- About 19 supported coding agents; Apache 2.0
Use cases
- Improving the visual quality of agent-generated front ends
- Gating pull requests on UI-quality rules in CI
Pricing
Free and open source (Apache 2.0).
Pricing reflects the source record and may change. Confirm current terms with the provider.
Dates and sources
- Released
- Not listed
- Record updated
- 29 Oct 2026
- Record last checked
- 29 Oct 2026