Skills Overview

65 specialized skills that extend Claude’s capabilities—invoked with /skill-name or loaded dynamically when you mention them.

Commands → Skills Complete

As of engineer@2.12.0, all 19 commands have been migrated to skills. The / slash syntax is unchanged. See Migration Guide.

Quick Reference

Frontend & Design

SkillPurpose
frontend-designBuild memorable web interfaces with bold aesthetics
ui-ux-pro-maxProduction-ready UI with research-backed patterns
ui-stylingTailwind patterns, responsive layouts, dark mode
frontend-developmentReact patterns, Suspense, state management
web-frameworksNext.js + Turborepo + RemixIcon stack
tanstackTanStack Start/Form/AI for full-stack React applications
threejs3D web experiences with WebGL/WebGPU
react-best-practicesReact and Next.js performance optimization from Vercel
web-design-guidelinesWeb Interface Guidelines compliance
web-testingPlaywright, Vitest, k6 testing
shaderGLSL fragment shaders for procedural graphics
remotionVideo creation in React

Backend & Infrastructure

SkillPurpose
backend-developmentNode.js, NestJS, security, testing patterns
databasesSchema design, query optimization, migrations
devopsCI/CD, deployment, infrastructure automation

AI & Multimodal

SkillPurpose
ai-multimodalGemini vision, audio, document processing
google-adk-pythonGoogle AI Development Kit for Python agents
ai-artistGenerate images via Nano Banana with curated prompts

Tools & Utilities

SkillPurpose
mcp-builderCreate MCP servers (Python FastMCP / TypeScript)
mcp-managementDiscover and execute MCP tools
skill-creatorCreate custom skills for your projects
repomixPack repos into AI-friendly context files
document-skillsPDF, DOCX, PPTX, XLSX processing
docs-seekerFind and retrieve external documentation
chrome-devtoolsBrowser automation, performance profiling
media-processingFFmpeg, ImageMagick, background removal
agent-browserAI-optimized browser automation
markdown-novel-viewerBook-like markdown reading experience
context-engineeringMonitor and optimize token consumption
gkgGitLab Knowledge Graph semantic analysis
mintlifyBuild and deploy modern documentation sites with Mintlify
template-skillBaseline template for creating new skills

Process & Methodology

SkillPurpose
planTransform requirements into executable plans
researchMulti-source validation before implementation
sequential-thinkingNumbered thought sequences for complex problems
problem-solvingSystematic approaches when stuck
debugRoot cause investigation framework
code-reviewVerification gates and technical rigor
brainstormTrade-off analysis with brutal honesty
scoutFast parallel codebase scouting
cookFeature implementation workflow
fixBug fixing with intelligent routing
gitGit operations with conventional commits
plans-kanbanVisual plan progress tracking
project-managementTask tracking, plan status, session bridging
teamAgent Teams for parallel multi-session collaboration
askAnswer technical and architectural questions
bootstrapInitialize new projects with spec-driven development
ck-helpClaudeKit usage guide and skill discovery
coding-levelSet coding experience level for tailored output
docsManage project documentation (init, update, summarize)
journalWrite development journal entries
kanbanAI agent orchestration board
previewView files or generate visual explanations and diagrams
testRun test suites, coverage analysis, build verification
use-mcpUtilize MCP server tools
watzupReview recent changes and wrap up sessions
worktreeCreate isolated git worktrees

Integrations & Specialized

SkillPurpose
better-authTypeScript auth (OAuth, 2FA, passkeys, multi-tenant)
shopifyShopify apps, GraphQL API, checkout extensions
payment-integrationStripe, PayPal, LemonSqueezy, SePay integration
mobile-developmentReact Native, Flutter, Swift/SwiftUI, Kotlin
copywritingConversion copy formulas and templates
mermaidjs-v11Diagram creation with Mermaid.js
find-skillsDiscover and install agent skills

How to Use

Basic invocation:

"Use [skill-name] to [task]"

Examples:

"Use better-auth to add GitHub OAuth with 2FA"
"Use devops to create production deployment"
"Use debug to investigate this test failure"
"Use frontend-design to build a SaaS landing page"

Skill not activating? Be explicit:

"Use the [skill-name] skill to..."

Under the Hood

How Skills Activate

Skills activate through semantic matching on your prompt:

  1. Claude matches your request to skill descriptions
  2. Relevant skill instructions load into context
  3. Claude follows skill-specific patterns and best practices

Activation triggers:

  • Mentioning the skill name explicitly
  • Describing a task that matches skill description
  • Using keywords from skill’s domain

Skill Structure

Every skill contains:

.claude/skills/[skill-name]/
├── SKILL.md          # Core instructions (<100 lines)
├── references/       # Detailed documentation
└── scripts/          # Automation scripts (optional)

Progressive disclosure: SKILL.md provides essentials, references/ has depth.

Skills vs Agents

AspectSkillsAgents
PurposeSpecialized knowledge + workflow orchestrationTask execution
Invocation/skill-name or “Use [skill]…”Auto-spawned by skills
ScopeSingle capability or multi-step processAutonomous work unit
Example/ck
, /ck
, /ck
, better-auth, devops
planner, tester, code-reviewer

Commands and skills now use the same / invocation syntax. The “commands” concept has been unified into skills as of engineer@2.12.0.

Creating Custom Skills

"Use skill-creator to create a skill for [your-domain]"

skill-creator will:

  1. Ask clarifying questions
  2. Design skill structure
  3. Create SKILL.md with proper frontmatter
  4. Add references if needed
  5. Save to .claude/skills/

Troubleshooting

Skill not working?

  • Check skill name spelling
  • Provide more context about your task
  • Try explicit invocation: “Use the X skill to…”

Need a skill that doesn’t exist?

  • Use skill-creator to build it
  • Request on Discord

Key Takeaway

65 skills provide instant expertise—invoke with /skill-name or mention the skill and describe your task. No configuration needed.