Introducing Agent Skills
by Anthropic
Anthropic's official launch of Agent Skills — folders that make Claude a specialist.
Overview
Published October 16, 2025, 'Introducing Agent Skills' is Anthropic's official announcement of Agent Skills: composable folders containing instructions, scripts, and resources that Claude discovers and loads on demand to perform better at specialized tasks such as working with Excel or following an organization's brand guidelines. Claude scans available Skills to find relevant matches and loads only what it needs, and automatically invokes the right Skill without manual selection. Skills work across the Claude apps, Claude Code, and the API; a skill-creator tool guides interactive setup, and the new /v1/skills endpoint plus Messages API support gives developers programmatic control over custom skill versioning and management. Skills are available to Pro, Max, Team, and Enterprise users, with pre-built Skills for PowerPoint, Excel, Word, and PDF.
At a Glance
- Topic
- Skills
- Level
- Beginner
- Format
- Guide
- Cost
- Free
- Duration
- ~6 min read
- Provider
- Anthropic
- Hands-on
- No
- Certificate
- None
What You’ll Learn
- ✓What Agent Skills are and the problem they solve for specialized agents
- ✓How Claude discovers and auto-invokes Skills based on their descriptions
- ✓Where Skills run: Claude apps, Claude Code, and the API
- ✓How the /v1/skills API endpoint enables custom skill versioning and management
- ✓The pre-built document Skills (pptx, xlsx, docx, pdf) available out of the box
Highlights
- •Primary-source announcement from Anthropic
- •Explains the skill-creator interactive authoring tool
- •Covers availability across apps, Claude Code, and API
Who It’s For
Best For
- ✓Engineers new to Agent Skills wanting the canonical overview
- ✓Teams evaluating whether Skills fit their agent workflows
Prerequisites
- •Basic familiarity with LLM agents
- •General understanding of Claude products
FAQ
What is Introducing Agent Skills?
Anthropic's product announcement introducing Agent Skills, a new way to build specialized agents from folders of instructions, scripts, and resources. Best for anyone who wants the authoritative first read on what Skills are and where they run.
Is Introducing Agent Skills free?
Introducing Agent Skills is free to access.
What level is Introducing Agent Skills for?
Introducing Agent Skills is aimed at a beginner audience. Recommended background: Basic familiarity with LLM agents, General understanding of Claude products.
How long does Introducing Agent Skills take?
Expect roughly ~6 min read. Most learners work through it at their own pace.
What will I learn from Introducing Agent Skills?
You'll learn: What Agent Skills are and the problem they solve for specialized agents; How Claude discovers and auto-invokes Skills based on their descriptions; Where Skills run: Claude apps, Claude Code, and the API; How the /v1/skills API endpoint enables custom skill versioning and management; The pre-built document Skills (pptx, xlsx, docx, pdf) available out of the box.