# Command Development (agent skill)

> Command Development is an agent skill (a SKILL.md file) from anthropics/claude-plugins-official. It should be used when the user asks to "create a slash command", "add a command", "write a custom command", "define command arguments", "use command frontmatter", "organize commands". It works with Claude Code and has 37,478 GitHub stars across a repository of 7 listed skills.

This skill should be used when the user asks to "create a slash command", "add a command", "write a custom command", "define command arguments", "use command frontmatter", "organize commands", "create command with file references", "interactive command", "use AskUserQuestion in command", or needs guidance on slash command structure, YAML frontmatter fields, dynamic arguments, bash execution in commands, user interaction patterns, or command development best practices for Claude Code.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/anthropics/claude-plugins-official |
| Skill path | plugins/plugin-dev/skills/command-development/SKILL.md |
| Skill name | command-development |
| GitHub stars | 37,478 |
| Installs on skills.sh | not listed |
| License | Apache-2.0 |
| Skills in repo | 7 |
| Plugin marketplace | claude-plugins-official |
| Official | yes |
| Works with | Claude Code |
| Category | Docs & writing |
| Last commit | Oct 5, 2026 |

## When it triggers

- used when the user asks to "create a slash command", "add a command", "write a custom command", "define command arguments", "use command frontmatter", "organize commands", "create command with file references", "interactive command", "use A
- "create a slash command"
- "add a command"
- "write a custom command"
- "define command arguments"
- "use command frontmatter"
- "organize commands"
- "create command with file references"

## Add this skill

### Claude Code

```sh
/plugin marketplace add anthropics/claude-plugins-official
/plugin install plugin-dev@claude-plugins-official
```

In the Claude apps, zip the skill folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

### ChatGPT / Codex

```sh
git clone --depth 1 https://github.com/anthropics/claude-plugins-official.git
cp -r claude-plugins-official/plugins/plugin-dev/skills/command-development .agents/skills/command-development   # repo; ~/.agents/skills for all projects
```

### Cursor

```sh
git clone --depth 1 https://github.com/anthropics/claude-plugins-official.git
cp -r claude-plugins-official/plugins/plugin-dev/skills/command-development .cursor/skills/command-development   # project; ~/.cursor/skills for all projects
```

Sources (checked 2026-10-07): https://code.claude.com/docs/en/skills, https://support.claude.com/en/articles/12512180-using-skills-in-claude, https://learn.chatgpt.com/docs/build-skills, https://cursor.com/docs/context/skills

---

Canonical page: https://appsgit.com/skills/anthropics-command-development
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