How do I pass arguments to a custom command?

You can use the $ARGUMENTS variable to capture the entire user input, or positional variables like $1, $2, and $3 to capture specific parts of the command string.

What is the purpose of YAML frontmatter in commands?

YAML frontmatter allows you to configure command metadata, such as the description shown in /help, the specific AI model to use, and which tools (like Bash or Read) the command is allowed to access.

Can slash commands execute terminal commands?

Yes, slash commands support inline bash execution using a specific syntax (exclamation-backtick) to gather repository state or environment information before Claude processes the prompt.

What is a Claude Code slash command?

A slash command is a specialized Markdown file stored in specific directories that defines a prompt for Claude to execute, allowing for reusable and standardized workflows.

Where are project-specific commands stored?

Project-specific commands are stored in the .claude/commands/ directory within your project root, making them available to any team member working on that repository.

Command Development for Claude Code

Name: Command Development for Claude Code
Author: astrosteveo

byastrosteveo

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Developer Tools

Enables the creation of powerful, reusable slash commands with custom arguments, file references, and bash execution logic for Claude Code.

This skill provides comprehensive guidance and patterns for developing custom slash commands within Claude Code, allowing users to automate repetitive tasks and standardize team workflows. It covers the full spectrum of command creation, from basic Markdown structures and YAML frontmatter configuration (such as tool permissions and model selection) to advanced features like dynamic positional arguments, context-aware file references, and inline bash execution for real-time repository data. By following these patterns, developers can build sophisticated, context-rich AI interactions that integrate directly with their local development environment and file systems.

Key Features

011 GitHub stars

02YAML Frontmatter Configuration for tool permissions and model selection

03Inline Bash Execution for real-time repository and environment context

04Contextual File References via @syntax for automatic content loading

05Dynamic Argument Handling using $ARGUMENTS and positional variables

06Namespaced Command Organization for project, personal, and plugin scopes

Use Cases

01Standardizing code review checklists and security audits across development teams

02Building documentation generators that automatically reference multiple source files

03Creating automated testing and deployment workflows that pull live git status

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add astrosteveo/marketplace command-development

For use in Claude.ai and ChatGPT

Download Skill