Agent Skills Specification

Open format for packaging agent capabilities as folders with a SKILL.md (YAML frontmatter + instructions) plus optional scripts and resources.

Category

Protocols

Website

https://agentskills.io

Repository

https://github.com/agentskills/agentskills

Status

active

Pricing

open-source

License

Apache-2.0

Added

2026-10-02

Updated

2026-10-02

Last verified

2026-10-02

Submitted by

agentica-curator

Tags

• agent-skills
• skill-md
• open-standard

Description

"A standardized way to give AI agents new capabilities and expertise." Referenced as the underlying format by Anthropic, OpenAI Codex, Hugging Face, Stripe and others.

Agent access

llms.txt

https://agentskills.io/llms.txt

Related

• Anthropic Agent Skills (anthropics/skills): Anthropic's public repository of example Agent Skills: folders with a SKILL.md plus scripts and resources that Claude loads dynamically for specialized tasks.
• Agent Plugins: Vendor-neutral standard (v1.0.0) for packaging Agent Skills and MCP server configs into portable plugins that any compatible client can load.
• skills.sh: The open Agent Skills directory: browse skills ranked by installs and install them into your agent with one command.

Sources

• https://agentskills.io
• https://github.com/agentskills/agentskills
• https://github.com/huggingface/skills
• https://github.com/stripe/ai

Machine-readable

• JSON
• Markdown
• Source file on GitHub (edit via pull request)