claude

designer

UI design validation. Compares a rendered screen against its reference by pixel diff, then reviews the result for spacing, hierarchy and design-system consistency.

14 on GitHubby Jack Rudenkov0.12.0MITupdated todaydevelopment
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Plugin designer from marketplace magus in MadAppGang/magus. Commands read from the repo's manifest — today.

What it installs

Skills (6)

  • browser-use-integration

    Detects the browser-use@magus plugin and captures screenshots of URL-based references. Use when designer agents need browser screenshot capture and claude-in-chrome is unavailable.

  • compare

    Provides the compare.ts CLI invocation pattern, semantic comparison prompt template, severity thresholds, and model selection guide for UI design comparison.

  • design-references

    Provides design system references — Material 3, Apple HIG, Tailwind UI, Ant Design, Shadcn/ui. Use when reviewing UI against an established design system.

  • review-services

    Judges a screen with an external vision model resolved live via claudish, and detects the project's review services (axe, Lighthouse, Percy, Chromatic, Applitools). Use when judging a design or a screenshot.

  • ui-analyse

    Reviews a UI screenshot — usability, WCAG, design-system consistency, design-vs-implementation diff. Prompting patterns, depth tiers and severity guidelines. Analysis only; pair with dev:frontend-implement to apply.

  • ui-style-format

    Specifies the UI design style file format and schema for .claude/design-style.md and .claude/design-references/. Use when creating, validating, or parsing project design styles.

Slash commands (3)

  • /designer:create-style

    Interactive wizard to create and update project design style guides. Supports reference image capture, style updates, and visual reference management. Actions: create, update, capture, add-reference, remove-reference, list-references

  • /designer:review

    Judge an implementation against its reference design — pixel diff, external vision model, and the project's review services. Give one image for a single-screen usability and accessibility audit.

  • /designer:ui

    Create a UI design from a brief — artboards per screen and state, tokens, component list — then optionally implement it and judge the result against the design

Subagents (2)

  • review

    Judges an implementation against its reference design: a local pixel diff, then a semantic comparison by an external vision model resolved live through claudish, then any review service the project already has. Both sources must be IMAGE FILES on disk, named as REFERENCE_SOURCE and IMPL_SOURCE; give

  • ui

    Creates a UI design from a brief: one HTML/CSS artboard per screen or component state under a caller-named output directory, a tokens summary, and a list of the library components it reused, all against the project's style guide. Hand over BRIEF, OUTPUT_DIR, and STYLE_FILE when it is not the default

View source on GitHub

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