💙 5) Claude AI Skills

Build once. Call forever.

Save tokens. Save time. Scale leverage.

🔽 What Are Skills?

Skills = reusable markdown workflows that Claude can call on demand.

In Claude Code, they live in .claude/commands/ as markdown files. In Cowork (the desktop app), they show up as /slash commands — built-in ones like /pdf, /docx, /pptx, /xlsx, and /visuals come pre-loaded, and you can install more via plugins.

Instead of re-typing long prompts:

You write it once
Save as a markdown file (Code) or install a plugin (Cowork)
Call it anytime with a slash command or by referencing it naturally

Think: SOPs for your AI.

🔹 Skills vs MCPs vs Plugins

	Skills	MCP Servers	Plugins
What they are	Reusable prompt workflows	Live tool integrations	Bundles of skills + MCPs + tools
Token cost	Near zero until called	~20% context just connected	Varies — loaded on demand
Best for	Repetitive workflows	Live external access	Full workflow packages
Works in	Claude Code + Cowork	Claude Code + Cowork	Claude Code + Cowork
Rule	Repetitive → Skill	Live data → MCP	Full workflow → Plugin

🔽 Where Skills Live

Claude Code:

project-root/
  .claude/
    commands/
      screenshot-to-website.md
      lead-research.md
      code-review.md

Claude auto-discovers them. Call them with slash commands like /screenshot-to-website or just reference them naturally in conversation.

Cowork (Desktop App):

Skills come pre-installed or via plugins. Built-in skills include: