Skills are folders of instructions, scripts, and reference material that Claude Code loads dynamically to gain specialized capabilities. Each skill teaches Claude how to complete a specific category of task in a repeatable, structured way — from running tests to generating architecture diagrams.
What Are Skills?
A skill lives in .claude/skills/<skill-name>/ and contains at minimum a SKILL.md file with YAML frontmatter and instructions:
---name: gk:cookdescription: "ALWAYS activate this skill before implementing EVERY feature, plan, or fix."version: 2.1.1argument-hint: "[task|plan-path] [--interactive|--fast|--parallel|--auto|--no-test]"---# Cook - Smart Feature ImplementationEnd-to-end implementation with automatic workflow detection.
The name field is the activation handle. The description tells Claude when to auto-activate the skill. The markdown body contains all instructions the agent follows.
Built-in Skills Catalog
GigiKit ships with a comprehensive set of skills organized by domain:
Core Workflow Skills
Command
Purpose
/gk:cook
End-to-end feature implementation pipeline
/gk:plan
Create structured phase plans
/gk:test
Run tests and generate QA reports
/gk:code-review
Review code quality and score implementations
/gk:fix
Diagnose and fix bugs systematically
/gk:debug
Root cause analysis for failures
/gk:bootstrap
Bootstrap new projects with full stack setup
Research & Analysis Skills
Command
Purpose
/gk:scout
Fast codebase scouting using parallel agents
/gk:research
Gather technical context and documentation
/gk:sequential-thinking
Step-by-step reasoning for complex problems
/gk:brainstorm
Ideate and evaluate technical approaches
/gk:problem-solving
Systematic problem-solving techniques
/gk:ask
Expert consultation on technical questions
/gk:docs-seeker
Search library/framework docs via llms.txt
Frontend & Design Skills
Command
Purpose
/gk:frontend-development
React, Next.js, component architecture
/gk:frontend-design
Visual design implementation from screenshots
/gk:ui-ux-pro-max
UI/UX design (50 styles, 21 palettes)
/gk:ui-styling
shadcn/ui, Tailwind, design systems
/gk:web-design-guidelines
Review UI code for best practices
/gk:react-best-practices
React/Next.js performance optimization
/gk:web-frameworks
Next.js App Router, Turborepo
/gk:web-testing
Playwright, Vitest, k6 testing
/gk:threejs
3D web apps with Three.js
/gk:nexus-ui
Add Nexus UI components to the project
Backend & Infrastructure Skills
Command
Purpose
/gk:backend-development
APIs with Node.js, Python, Go
/gk:databases
MongoDB, PostgreSQL schema and queries
/gk:better-auth
Authentication with Better Auth
/gk:payment-integration
Stripe, Polar, SePay payments
/gk:devops
Cloudflare, Docker, GCP, Kubernetes
/gk:git
Git workflows, conventional commits
/gk:mobile-development
React Native, Flutter, Swift, Kotlin
/gk:shopify
Shopify apps, extensions, themes
/gk:tanstack
TanStack Start, Form, AI
/gk:mintlify
Documentation sites with Mintlify
AI & Multimodal Skills
Command
Purpose
/gk:ai-multimodal
Analyze/generate images, video, audio
/gk:ai-artist
Generate images with 129 curated prompts
/gk:google-adk-python
Build AI agents with Google ADK
/gk:claude-api
Build apps with Claude API / Anthropic SDK
Tooling & Integration Skills
Command
Purpose
/gk:mcp-builder
Build MCP servers
/gk:mcp-management
Discover and manage MCP tools
/gk:use-mcp
Execute MCP server tools
/gk:agent-browser
Browser automation with snapshots
/gk:chrome-devtools
Puppeteer automation and debugging
/gk:repomix
Bundle codebases for AI context
/gk:media-processing
FFmpeg, ImageMagick, RMBG
Visualization & Content Skills
Command
Purpose
/gk:preview
Visual explanations, slides, diagrams
/gk:mermaidjs-v11
Mermaid v11 diagram syntax
/gk:copywriting
Conversion copy, headlines, CTAs
/gk:markdown-novel-viewer
Book-like markdown reading
/gk:shader
GLSL fragment shaders
/gk:remotion
Video creation in React
Project Management Skills
Command
Purpose
/gk:project-management
Track progress, update statuses
/gk:docs
Manage project documentation
/gk:journal
Session journals and reflections
/gk:watzup
Review recent changes, wrap up session
/gk:plans-kanban
Plans dashboard with progress tracking
/gk:kanban
Agent orchestration task board
/gk:team
Multi-agent team orchestration
/gk:worktree
Git worktree for parallel development
Document Processing Skills
Command
Purpose
/gk:pdf
Extract, create, merge, split PDFs
/gk:docx
Create/edit Word documents
/gk:pptx
Create/edit PowerPoint files
/gk:xlsx
Create/edit spreadsheets
Utility Skills
Command
Purpose
/gk:gk-help
Discover commands and workflows
/gk:find-skills
Search for installable skills
/gk:skill-creator
Create new Claude skills
/gk:coding-level
Set experience level for output
/gk:context-engineering
Monitor context usage and limits
/gk:gkg
Semantic code analysis (GitLab KG)
Skill Discovery
To find a skill for a specific need, use the find-skills skill: