AI product Open source · MIT
SwiftUI Pro is an agent skill for AI coding assistants including Claude Code, Codex, Gemini, and Cursor. It guides assistants in writing and reviewing SwiftUI code, covering API usage, navigation, layout, animations, state management, performance, accessibility and VoiceOver, and deprecated APIs, with rules aimed at common mistakes made by language models. It uses the Agent Skills format and can be installed with npx, added as a Claude Code plugin, or installed from the repository. The skill is distributed under the MIT License.
AI Design Skills is an MIT-licensed collection of Markdown design skills for AI coding tools such as Claude Code, Cursor, Codex, Windsurf, and Cline. Its skills provide coding agents with guidance for landing-page strategy, page structure, conversion copy, typography, spacing, visual systems, border radius, and motion. Each skill is stored as a self-contained folder with a SKILL.md file that can be copied into an agent's project-rules directory, added to a system prompt, or uploaded to a Claude.ai project. The repository currently documents a landing-page-design skill that asks intake questions, builds the page structure and copy, and defines the visual system; its design values are grouped in an editable section so users can change fonts, colors, spacing, and motion. The collection can be forked and used, modified, distributed, or used in commercial work under the MIT license.
Agent Skills is a curated skill registry and npm-based CLI for extending AI coding agents such as Claude Code, Cursor, Copilot, and Antigravity with packaged instructions, templates, and reference files. The CLI fetches a catalog, lets users search and select skills, caches downloads locally, and installs them to selected agents by copying or symlinking them at global or project scope; it also supports updating, removing, auditing, and managing cached skills. The repository describes the catalog as an open-source, human-curated library with CI static analysis, content hashing, lockfiles, path isolation, symlink guards, sanitization, audit logging, and Snyk Agent Scan checks. It also includes an MCP server that exposes progressive-disclosure tools for listing, searching, reading, and fetching skill files. The CLI source is MIT-licensed; maintainer-authored skills are generally CC BY 4.0, while third-party skills retain their own licenses.
An agent-facing collection of design and engineering skills by Emil Kowalski for building and reviewing user interfaces. Its guidance covers animation curves, durations, properties, gestures, haptics, screen transitions, motion placement, borders, shadows, typography, Apple interface principles distilled from WWDC talks, UI-library selection, modern Swift, prototyping, and product-interface details. The skills can create animations from scratch, review animations against defined rules, audit a codebase and produce prioritized implementation plans, identify worthwhile opportunities for motion while flagging what should not be animated, and build multiple UI variants navigated through a switcher. A React Native and Expo skill covers gestures, sheets, haptics, screen transitions, and keeping motion off the JavaScript thread; other skills guide use of the Sonner toast library and library selection. The collection is installed with `npx skills@latest add emilkowalski/skills` and is based on Kowalski’s stated experience at Vercel and Linear.
An MIT-licensed Claude Code skill that applies concrete design rules from Refactoring UI by Adam Wathan and Steve Schoger when building or reviewing interfaces. It selects spacing, typography, color, shadow, and radius values from fixed scales; creates hierarchy through font weight and color rather than relying on larger text; and translates subjective issues such as an interface looking "off" into specific mechanical fixes. The repository includes a SKILL.md procedure, references for palette construction, diagnosis, depth, typefaces, grids, and images, plus a contrast-verified starter tokens.css file. Claude Code can load it as a personal or project skill, and it does not include the book's text or images.
Claude Code is Anthropic's agentic AI coding tool for the terminal, IDEs, and GitHub. It uses natural-language commands to examine and understand codebases, create and read files, execute commands, run tests, explain code, manage Git workflows, and assist with routine development tasks. It can load persistent project context, run custom slash commands, use plugins with custom commands and agents, and operate with configurable autonomy while leaving actions such as final pull-request merging to a human. The official repository documents installation for macOS, Linux, and Windows, and identifies npm installation as deprecated.