shadcn-ui-designer
Design and build modern UI components and pages using shadcn/ui. Creates clean, accessible interfaces with Tailwind CSS following shadcn principles. Use when building UI components, pages, forms, dashboards, or any interface work.
article-extractor
Extract clean article content from URLs (blog posts, articles, tutorials) and save as readable text. Use when user wants to download, extract, or save an article/blog post from a URL without ads, navigation, or clutter.
expo-ios-designing
Designs modern, clean iOS screens and components for Expo React Native apps following Apple HIG with safe areas, Dynamic Type, dark mode, accessibility, Liquid Glass materials, and App Store readiness.
Playwright Browser Automation
Complete browser automation with Playwright. Auto-detects dev servers, writes clean test scripts to /tmp. Test pages, fill forms, take screenshots, check responsive design, validate UX, test login flows, check links, automate any browser task. Use when user wants to test websites, automate browser interactions, validate web functionality, or perform any browser-based testing.
frontend-design
Create bold, high-end, production-grade frontend interfaces with the mindset of a professional UI/UX designer and frontend engineer.
long-prompt-guide
Production Brief methodology for complex Veo 3 video scenes. Use when creating scenes with dialogue, character continuity, structured settings, or multi-beat sequences. Provides 11-block framework (Format & Tone, Main Subjects, Wardrobe & Props, Location & Framing, Lighting & Palette, Continuity Rules, Actions & Camera Beats, Montage Plan, Dialogue, Sound & Foley, Finish) for professional, replicable results.
storyteller
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great-prompt-anatomy
Essential framework for creating solid Veo 3 prompts. Use when constructing video prompts, validating prompt completeness, or teaching prompt structure. Defines 8 mandatory components (Subject, Setting, Action, Style/Genre, Camera/Composition, Lighting/Mood, Audio, Constraints) that every prompt must include for professional results.
diverse-content-gen
Agent workflow for generating highly diverse creative content using Verbalized Sampling (VS) technique. Use when user requests multiple variations, brainstorming, creative ideas, or when standard prompting produces repetitive outputs. Increases diversity by 1.6-2.1× while maintaining quality. Works for: blog posts, social media captions, stories, campaign ideas, product descriptions, taglines, and open-ended creative tasks.
camera-movements
Standardized camera movement vocabulary for Veo 3 video generation. Use when creating video prompts that require specific camera movements, cinematography terminology, or when validating camera movement specifications. Provides authoritative reference for 50+ camera movements (Dolly, Arc, Crane, FPV Drone, Whip Pan, etc.) to ensure consistent, production-ready terminology.
arch-v
Video production workflow orchestrator for Veo 3. Guides users through creating professional video prompts via two paths - direct text-to-video OR image-to-video pipeline (Imagen 3/4 → Veo 3). Validates prompt completeness, checks conflicts, ensures all mandatory components present. Integrates camera-movements, great-prompt-anatomy, short-prompt-guide, long-prompt-guide, and imagine skills.
imagine
Prepare detailed, professional prompts for Google Imagen 3/4 image generation. Supports character, environment, and object prompts using natural language with technical photography specifications. Extensible support for multiple art styles via reference files.
production-validator
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screenwriter
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short-prompt-guide
Strategy for creating efficient short-form video prompts. Use when creating filler shots, atmospheric scenes, or quick video clips that don't require full Production Brief methodology. Covers when to go short vs long, format+style upfront rule, and two approaches (Descriptive vs Directive) for compact yet coherent results.
gcalcli
Interact with Google Calendar via gcalcli
gcmd
Export and access Google Drive files (docs, sheets, meeting notes)
jirahhh
Interact with Jira
slacker
Interact with Slack (reminders, DMs, activity, saved messages)
pr-review
Review GitHub pull requests
pptx
Presentation creation, editing, and analysis. When Claude needs to work with presentations (.pptx files) for: (1) Creating new presentations, (2) Modifying or editing content, (3) Working with layouts, (4) Adding comments or speaker notes, or any other presentation tasks
webapp-testing
Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.
xlsx
Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas
theme-factory
Toolkit for styling artifacts with a theme. These artifacts can be slides, docs, reportings, HTML landing pages, etc. There are 10 pre-set themes with colors/fonts that you can apply to any artifact that has been creating, or can generate a new theme on-the-fly.
mcp-builder
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).
skill-creator
Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.
template-skill
Replace with description of the skill and when Claude should use it.
validating-plans
Systematically validate implementation plans before execution - catches hallucinations, TDD violations, missing references, and architectural issues that derail implementations. Use after writing-plans skill creates a plan document.
artifacts-builder
Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui). Use for complex artifacts requiring state management, routing, or shadcn/ui components - not for simple single-file HTML/JSX artifacts.
brand-guidelines
Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having Anthropic's look-and-feel. Use it when brand colors or style guidelines, visual formatting, or company design standards apply.
algorithmic-art
Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avoid copyright violations.
canvas-design
Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create original visual designs, never copying existing artists' work to avoid copyright violations.
docx
Comprehensive document creation, editing, and analysis with support for tracked changes, comments, formatting preservation, and text extraction. When Claude needs to work with professional documents (.docx files) for: (1) Creating new documents, (2) Modifying or editing content, (3) Working with tracked changes, (4) Adding comments, or any other document tasks
Comprehensive PDF manipulation toolkit for extracting text and tables, creating new PDFs, merging/splitting documents, and handling forms. When Claude needs to fill in a PDF form or programmatically process, generate, or analyze PDF documents at scale.
git-workflow
Standard git workflow for feature development
code-review
Systematic code review checklist
debugging
Systematic approach to debugging software issues
memory-management
Managing agent memory for effective recall
yt-dlp
Download audio and video from thousands of websites using yt-dlp. Feature-rich command-line tool supporting format selection, subtitle extraction, playlist handling, metadata embedding, and post-processing. This skill is triggered when the user says things like "download this video", "download from YouTube", "extract audio from video", "download this playlist", "get the mp3 from this video", "download subtitles", or "save this video locally".
parakeet
Convert audio files to text using parakeet-mlx, NVIDIA's Parakeet automatic speech recognition model optimized for Apple's MLX framework. Run via uvx for on-device speech-to-text processing with high-quality timestamped transcriptions. Ideal for podcasts, interviews, meetings, and other audio content. This skill is triggered when the user says things like "transcribe this audio", "convert audio to text", "transcribe this podcast", "get text from this recording", "speech to text", or "transcribe this wav/mp3/m4a file".
mermaid
Generate diagrams and flowcharts from mermaid definitions using the mermaid-cli (mmdc). Supports themes, custom CSS, and various output formats including SVG, PNG, and PDF. Mermaid supports 20+ diagram types including flowcharts, sequence diagrams, class diagrams, state diagrams, entity relationship diagrams, user journeys, Gantt charts, pie charts, quadrant charts, requirement diagrams, GitGraph, C4 diagrams, mindmaps, timelines, ZenUML, Sankey diagrams, XY charts, block diagrams, packet diagrams, Kanban boards, architecture diagrams, radar charts, and treemaps. This skill is triggered when the user says things like "create a diagram", "make a flowchart", "generate a sequence diagram", "create a mermaid chart", "visualize this as a diagram", "render mermaid code", or "create an architecture diagram".
llm
Access and interact with Large Language Models from the command line using Simon Willison's llm CLI tool. Supports OpenAI, Anthropic, Gemini, Llama, and dozens of other models via plugins. Features include chat sessions, embeddings, structured data extraction with schemas, prompt templates, conversation logging, and tool use. This skill is triggered when the user says things like "run a prompt with llm", "use the llm command", "call an LLM from the command line", "set up llm API keys", "install llm plugins", "create embeddings", or "extract structured data from text".
just
just is a handy command runner for saving and running project-specific commands. Features include recipe parameters, .env file loading, shell completion, cross-platform support, and recipes in arbitrary languages. This skill is triggered when the user says things like "create a justfile", "write a just recipe", "run just commands", "set up project automation with just", "understand justfile syntax", or "add a task to the justfile".
piper
Convert text to speech using Piper TTS. This skill is triggered when the user says things like "convert text to speech", "text to audio", "read this aloud", "create audio from text", "generate speech from text", "make an audio file from this text", or "use piper TTS".
jira-cli
Manage Jira tickets from the command line using jira-cli. Contains essential setup instructions, non-interactive command patterns with required flags (--plain, --raw, etc.), authentication troubleshooting, and comprehensive command reference. This skill is triggered when the user says things like "create a Jira ticket", "list my Jira issues", "update Jira issue", "move Jira ticket to done", "log time in Jira", "add comment to Jira", or "search Jira issues". IMPORTANT - Read this skill before running any jira-cli commands to avoid blocking in interactive mode.
jj-vcs
Jujutsu (jj) is a powerful Git-compatible version control system with innovative features like automatic rebasing, working-copy-as-a-commit, operation log with undo, and first-class conflict tracking. This skill is triggered when the user says things like "use jj", "run jj commands", "jujutsu version control", "migrate from git to jj", "jj rebase", "jj squash", "jj log", or "help with jj workflow".
gh
GitHub CLI (gh) for repository management, rulesets, releases, PRs, and issues. This skill is triggered when the user says things like "create a GitHub PR", "list GitHub issues", "set up branch protection", "create a ruleset", "configure GitHub rulesets", "create a GitHub release", "clone this repo", or "manage GitHub repository settings".
react-native-mobile-design
Create distinctive, production-grade React Native mobile applications with modern best practices. Use this skill when the user asks to build React Native components, screens, or complete mobile apps for iOS and Android. Handles UI creation from scratch, design-to-code conversion (Figma/mockups), state management (Zustand, Redux Toolkit), navigation (React Navigation), styling (NativeWind, StyleSheet), and performance optimization. Generates beautiful, performant cross-platform code.
flutter-mobile-design
Create distinctive, production-grade Flutter mobile applications with Material Design 3. Use this skill when the user asks to build Flutter widgets, screens, pages, or complete mobile apps. Handles UI creation from scratch, design-to-code conversion (Figma/mockups), architecture patterns (Riverpod, BLoC), and Flutter best practices. Generates beautiful, performant Flutter code that avoids generic aesthetics.
resume-creator
Create professional resumes using first-principles thinking, Google XYZ format, company research, LaTeX Harvard-style formatting, and iterative visual refinement. Use when the user wants to create, update, or optimize a resume/CV for a specific job, company, or career goal.
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