Getting Started with OpenSkills: Launching a New Era of AI Programming Assistant Skills

What is OpenSkills?

OpenSkills is an open‑source CLI that generalises Anthropic’s Claude Code Skills System, allowing those modular AI instructions to be used in any AI programming assistant such as Cursor, Windsurf or Aider.

Core advantages

Cross‑platform : a single skill works on all AI assistants.

Context optimisation : uses progressive disclosure so detailed instructions are loaded only when needed, saving tokens.

Ecosystem‑driven : one‑click install of official or community skills from Anthropic.

Quick start

Installation

Make sure Node.js is installed, then run:

npm i -g openskills

Preparing the skill directory

OpenSkills stores skills under .claude/skills/ by default and synchronises to .agent/skills/ for cross‑tool usage.

Skill management

Installing official / third‑party skills

You can download ready‑made skills from a GitHub repository.

Install Anthropic official skills:

Install a specific GitHub repo:

Cross‑tool synchronisation (--universal)

When you want the skill to be available in Cursor, Windsurf or Aider, add the --universal flag:

openskills install anthropics/skills --universal

This copies the skill to the .agent/skills/ directory, the standard path recognised by most AI assistants.

Using a skill in an AI assistant

After installation you do not need to copy thousands of lines of prompt.

Scenario demonstration

AI perception : At the start of a conversation the AI sees a short tag such as <available_skills>pdf</available_skills> indicating the skill is present.

Triggering the skill : You simply ask “Summarise this PDF file”.

AI autonomous operation : The AI recognises it needs the pdf skill and replies “I need to use the pdf skill, please run openskills read pdf and give me the result.”

Developing your own skill

You can encapsulate project‑specific conventions or complex workflows as a custom skill.

Step 1 – Create the skill file

Place a markdown file under .claude/skills/, for example my‑custom‑skill.md:

# My Custom Skill

## Description
针对本项目特定的 Vue 3 组件编写规范。

## Instructions
1. 必须使用 script setup 语法。
2. 样式必须使用 Scoped CSS。
3. 必须包含详细的 Props 类型定义。

Step 2 – Sync the skill

Run: openskills sync The AI assistant can now recognise the skill via the <available_skills> list.

Common commands

openskills list

– view all installed skills. openskills install <source> – install a skill from GitHub or a Git URL. openskills read <name> – read a specific skill for the AI. openskills sync – update AGENTS.md and synchronise to assistants. openskills manage – interactive management (remove) of installed skills. openskills rm <name> – script‑friendly removal.

OpenSkills vs. OpenSpec

Both improve AI programming efficiency but serve different purposes:

OpenSkills – a “toolbox” of capability plugins that answer “how does the AI do a specific thing?” (e.g., read a PDF, follow a component standard).

OpenSpec – a “task brief” that tells the AI “what should be done?” (e.g., add a login feature, fix a bug).

OpenSkills has a long‑term lifecycle like a library; OpenSpec is task‑driven and short‑term.

OpenSkills uses progressive disclosure; OpenSpec executes the full specification.

Recommendation: encapsulate reusable, expert‑level logic as a Skill, and write concrete, project‑specific changes as a Spec.

Advanced tip – local debugging

During skill development you can symlink your local directory into .claude/skills/ so changes take effect immediately without reinstalling:

# macOS/Linux
ln -s /path/to/your-local-skill .claude/skills/my-custom-skill

Conclusion : OpenSkills is more than a prompt manager; it implements an “on‑demand loading” philosophy that prevents context overload and lets AI assistants evolve from generic chatbots to domain‑specific experts. Mastering skill development will become a key differentiator for developers as AI agents mature.