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Command Development

A hands-on reference for building Claude Code slash commands — frontmatter, dynamic arguments, file references, and plugin patterns.

Dev & CodingIntermediate★ 549⑂ 48AI score 7/10Last updated: Sep 16, 2026

What it does

  • Walks through creating /slash-commands end to end: where files live (.claude/commands/ for projects, ~/.claude/commands/ for personal use), naming, and namespaced subdirectories.
  • Documents every YAML frontmatter field (description, allowed-tools, model, argument-hint, disable-model-invocation) with recommended usage.
  • Covers dynamic arguments ($ARGUMENTS, $1, $2), @file references, and inline bash execution for injecting live context.
  • Reinforces the core rule that commands are instructions for Claude, not messages to the user, and ships reusable patterns (review, test, docs, workflow) plus a troubleshooting checklist.

Who it's for

  • Developers standardizing team workflows as reusable slash commands.
  • Plugin authors who need ${CLAUDE_PLUGIN_ROOT} to reference bundled scripts, templates, and config portably.
  • Anyone chaining commands with agents, skills, and hooks into multi-step workflows.

Examples

  1. "Create a /review-pr command that takes a PR number, priority, and assignee" → generates a command using argument-hint and positional $1 $2 $3.
  2. "I want a review command that auto-includes changed files" → applies the Bash(git:*) allowed-tools pattern with inline git diff --name-only.
  3. "My 20+ commands are a mess" → reorganizes them into ci/, git/, docs/ namespaces that show up in /help.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/tzachbon/smart-ralph/HEAD/.agents/skills/Command Development/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the .agents/skills/Command Development folder from the GitHub repo tzachbon/smart-ralph into my ~/.claude/skills/command-development/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/tzachbon/smart-ralph.git /tmp/smart-ralph && mkdir -p ~/.claude/skills/command-development && cp -r "/tmp/smart-ralph/.agents/skills/Command Development/." ~/.claude/skills/command-development/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the repository: git clone https://github.com/tzachbon/smart-ralph.git /tmp/smart-ralph
  3. Create the skill folder: mkdir -p ~/.claude/skills/command-development
  4. Copy the whole skill directory (including references/ and examples/): cp -r "/tmp/smart-ralph/.agents/skills/Command Development/." ~/.claude/skills/command-development/
  5. Restart Claude Code, then ask something like "create a slash command" and the skill loads automatically.
  6. For project-only use, copy into .claude/skills/command-development/ inside your repo instead.
View source on GitHub ↗License: MIT