Introduction to agent skills
by Anthropic Academy
Anthropic's own free course on writing, configuring, sharing and debugging Agent Skills.
Overview
Introduction to agent skills is Anthropic Academy's own free, self-paced course on Agent Skills — folders of reusable Markdown instructions that Claude loads automatically when a task matches their description. It is hosted on Skilljar rather than on Anthropic's own domain, needs only an email signup rather than an Anthropic account, and is free including the completion certificate. Six modules move from concept to diagnosis. The first establishes what Skills are. The second has you create one from scratch, which in practice means writing SKILL.md frontmatter and a trigger description precise enough that Claude reaches for the Skill at the right moment and not at the wrong one. The third covers configuration and multi-file Skills, where a directory is organised so only the parts a task actually needs enter the context window, and where tool access is narrowed with allowed-tools and heavy work is pushed into scripts that run without consuming context. The fourth draws the distinction most teams get wrong: how Skills differ from CLAUDE.md, hooks and subagents. The fifth covers distribution — sharing through repositories and plugins, deploying organisation-wide via enterprise settings, and folding Skills into custom subagents. The sixth is troubleshooting: a Skill that will not trigger, priority conflicts between Skills, and runtime errors. Third-party guides to the Academy catalogue place it after Claude Code 101 and Claude Code in Action, and it assumes basic Claude Code experience rather than teaching the CLI itself.
At a Glance
- Topic
- Skills
- Level
- Beginner
- Format
- Course
- Cost
- Free
- Duration
- 6 modules, self-paced
- Provider
- Anthropic Academy
- Hands-on
- Yes — code/exercises
- Certificate
- Available
What You’ll Learn
- ✓How Skills differ from CLAUDE.md, hooks and subagents, and when to reach for each
- ✓Write SKILL.md frontmatter with a trigger description Claude reliably matches
- ✓Organise multi-file Skill directories so only needed files enter the context window
- ✓Restrict a Skill's tool access with allowed-tools rather than trusting instructions
- ✓Push heavy work into scripts that run without consuming context budget
- ✓Share Skills through repositories, plugins and organisation-wide enterprise settings
- ✓Embed Skills inside custom subagents for delegated, parallel work
- ✓Diagnose a Skill that will not trigger, priority conflicts and runtime errors
Highlights
- •First-party training written by the team that designed Agent Skills
- •Free end to end, quizzes and completion certificate included, with only an email signup required
- •Devotes a whole module to Skills versus CLAUDE.md, hooks and subagents — the confusion that wastes the most time in practice
- •Treats context efficiency as a design constraint, covering multi-file layout, allowed-tools and context-free scripts
- •Ends on troubleshooting rather than a demo, which is where a Skill practice actually breaks
- •Sequenced: third-party catalogue guides place it after Claude Code 101 and Claude Code in Action, so it is not a first stop
Who It’s For
Best For
- ✓Claude Code users who want official, structured Skills training
- ✓Teams formalising shared Skills across a repository or organisation
- ✓Engineers whose Skills are written but never seem to trigger
- ✓Platform owners planning enterprise Skill distribution via plugins
Prerequisites
- •Basic Claude Code experience — the course does not teach the CLI itself
- •Comfort writing Markdown and editing YAML frontmatter
- •Helpful: having tried CLAUDE.md or a hook, so the comparisons land
FAQ
What is Introduction to agent skills?
Anthropic Academy's free, self-paced six-module course on Agent Skills — the folders of reusable Markdown instructions that Claude loads automatically whenever a task matches their description. It covers SKILL.md frontmatter and trigger descriptions, multi-file layout for context efficiency, restricting tool access, sharing through repositories and enterprise settings, and diagnosing a Skill that refuses to fire.
Is Introduction to agent skills free?
Introduction to agent skills is free to access.
What level is Introduction to agent skills for?
Introduction to agent skills is aimed at a beginner audience. Recommended background: Basic Claude Code experience — the course does not teach the CLI itself, Comfort writing Markdown and editing YAML frontmatter, Helpful: having tried CLAUDE.md or a hook, so the comparisons land.
How long does Introduction to agent skills take?
Expect roughly 6 modules, self-paced. Most learners work through it at their own pace.
What will I learn from Introduction to agent skills?
You'll learn: How Skills differ from CLAUDE.md, hooks and subagents, and when to reach for each; Write SKILL.md frontmatter with a trigger description Claude reliably matches; Organise multi-file Skill directories so only needed files enter the context window; Restrict a Skill's tool access with allowed-tools rather than trusting instructions; Push heavy work into scripts that run without consuming context budget; Share Skills through repositories, plugins and organisation-wide enterprise settings; Embed Skills inside custom subagents for delegated, parallel work; Diagnose a Skill that will not trigger, priority conflicts and runtime errors.
Topics
Sources
This page was written from 3 sources, 2 on domains other than anthropic.skilljar.com.