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Guide for creating Claude Code slash commands. Use when the user wants to create a new slash command, update an existing slash command, or asks about slash command syntax, frontmatter options, or best practices.

Install Skill

1Download skill
2Enable skills in Claude

Open claude.ai/settings/capabilities and find the "Skills" section

3Upload to Claude

Click "Upload skill" and select the downloaded ZIP file

Note: Please verify skill by going through its instructions before using it.

SKILL.md

name slash-command-creator
description Guide for creating Claude Code slash commands. Use when the user wants to create a new slash command, update an existing slash command, or asks about slash command syntax, frontmatter options, or best practices.

Slash Command Creator

Create custom slash commands for Claude Code to automate frequently-used prompts.

Quick Start

Initialize a new command:

scripts/init_command.py <command-name> [--scope project|personal]

Command Structure

Slash commands are Markdown files with optional YAML frontmatter:

---
description: Brief description shown in /help
---

Your prompt instructions here.

$ARGUMENTS

File Locations

Scope Path Shown as
Project .claude/commands/ (project)
Personal ~/.claude/commands/ (user)

Namespacing

Organize commands in subdirectories:

  • .claude/commands/frontend/component.md/component shows "(project:frontend)"
  • ~/.claude/commands/backend/api.md/api shows "(user:backend)"

Features

Arguments

All arguments - $ARGUMENTS:

Fix issue #$ARGUMENTS following our coding standards
# /fix-issue 123 → "Fix issue #123 following..."

Positional - $1, $2, etc.:

Review PR #$1 with priority $2
# /review 456 high → "Review PR #456 with priority high"

Bash Execution

Execute shell commands with ! prefix (requires allowed-tools in frontmatter):

---
allowed-tools: Bash(git status:*), Bash(git diff:*)
---

Current status: !`git status`
Changes: !`git diff HEAD`

File References

Include file contents with @ prefix:

Review @src/utils/helpers.js for issues.
Compare @$1 with @$2.

Frontmatter Options

Field Purpose Required
description Brief description for /help Yes
allowed-tools Tools the command can use No
argument-hint Expected arguments hint No
model Specific model to use No
disable-model-invocation Prevent SlashCommand tool invocation No

See references/frontmatter.md for detailed reference.

Examples

See references/examples.md for complete examples including:

  • Simple review/explain commands
  • Commands with positional arguments
  • Git workflow commands with bash execution
  • Namespaced commands for frontend/backend

Creation Workflow

  1. Identify the use case: What prompt do you repeat often?
  2. Choose scope: Project (shared) or personal (private)?
  3. Initialize: Run scripts/init_command.py <name>
  4. Edit: Update description and body
  5. Test: Run the command in Claude Code