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By timbrinded
UI design reviewer distilled from Refactoring UI principles. Reviews screenshots, code, and descriptions for hierarchy, spacing, typography, color, depth, and polish — with concrete CSS fixes and named anti-patterns.
npx claudepluginhub timbrinded/kiln --plugin ui-refactorShare bugs, ideas, or general feedback.
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Sign in to claimBased on adoption, maintenance, documentation, and repository signals. Not a security audit or endorsement.
AI-powered UI design skills based on Refactoring UI principles. Evaluate and improve interface designs with expert-validated guidance.
Design fluency for frontend development. 1 skill with 23 commands (/impeccable polish, /impeccable audit, /impeccable critique, etc.) and curated anti-pattern detection.
Systematic visual UI/UX audits producing phased, implementation-ready design plans. Purely visual refinement without touching functionality.
Use this agent when creating user interfaces, designing components, building design systems, or improving visual aesthetics. This agent specializes in creating beautiful, functional interfaces that can be implemented quickly within 6-day sprints. Examples:\n\n<example>\nContext: Starting a new app or feature design
7-phase frontend design review with accessibility (WCAG 2.1 AA), responsive testing, visual polish. Use for PR reviews, UI audits, or encountering contrast issues, broken layouts, accessibility violations, inconsistent spacing, missing focus states.
Audit and improve front-end usability using 15 established design principles. Acts as a Senior UX designer/engineer reviewing your interface end-to-end.
Post-generation code quality cleanup. Reviews git diffs for AI-generated verbosity, unnecessary state, defensive coding, and complexity — then applies concrete simplifications.
Shape language skills for authoring, validating, preflighting, and reviewing architecture contracts.
Language-agnostic performance optimization skill distilled from Google's Abseil performance wisdom. Covers measurement methodology, optimization techniques, and cross-language patterns for C++, Rust, and TypeScript.
SwiftUI design excellence — HIG-compliant code review, generation, and iteration with 40 enforceable rules, accessibility checks, and modern API enforcement.
Lateral knowledge explorer that traverses Wikipedia to find non-obvious cross-domain structural analogues for engineering problems
Raw code refined into polished design.

Kiln is a marketplace of Claude Code plugins for code quality and intelligent tooling. Design plugins encode platform-specific guidelines as machine-enforceable rules. Performance plugins distill expert optimization knowledge into actionable guidance. API plugins provide structured guides for web research and data enrichment APIs.
| Plugin | Category | Description |
|---|---|---|
| swift-design | Design | 40 HIG rules for SwiftUI — letter grading, visual review, accessibility checks, modern API enforcement |
| ui-refactor | Design | Refactoring UI principles — review screenshots, CSS, and Tailwind for hierarchy, spacing, typography, color, depth, and polish |
| performance-optimization | Performance | Abseil-derived optimization guidance — measurement methodology, cross-language patterns for C++, Rust, and TypeScript |
In the Claude Code interactive terminal:
/plugin marketplace add https://github.com/timbrinded/kiln.git
Browse available plugins:
/plugin
Navigate to the Discover tab, select a plugin, and choose a scope (User, Project, or Local).
Or install directly:
/plugin install swift-design@kiln
/plugin install ui-refactor@kiln
/plugin install performance-optimization@kiln
claude --plugin-dir /path/to/kiln/plugins/swift-design
claude --plugin-dir /path/to/kiln/plugins/ui-refactor
claude --plugin-dir /path/to/kiln/plugins/performance-optimization
If you've cloned the repo locally:
/plugin marketplace add ./path/to/kiln
Each plugin lives in plugins/<name>/ as a self-contained Claude Code plugin:
plugins/<name>/
├── .claude-plugin/
│ └── plugin.json # Plugin manifest (name, version, description)
├── agents/ # Autonomous review agents
├── commands/ # Slash commands (/review, /generate, etc.)
├── skills/ # Skills with progressive disclosure
│ └── <name>/
│ ├── SKILL.md
│ └── references/
└── README.md
Then register it in .claude-plugin/marketplace.json at the repo root:
{
"name": "<name>",
"source": "./plugins/<name>",
"description": "...",
"version": "0.1.0",
"author": { "name": "timbo" },
"category": "design",
"license": "MIT",
"keywords": []
}
MIT