How do I pass arguments to a custom command?

You can use $1, $2, etc., for positional arguments or $ARGUMENTS to capture all input provided by the user after the command name.

What is the difference between a command and a skill?

Commands are user-initiated via explicit slash syntax (e.g., /review), while skills are automatically triggered by Claude based on the conversation context.

Where are custom commands stored?

Project-specific commands are stored in the .claude/commands/ directory, while personal commands reside in ~/.claude/commands/.

How do I include file contents in a command context?

You can use the @ symbol followed by the file path (e.g., @package.json) or an argument (e.g., @$1) to inject file contents directly into the prompt.

Can I restrict what tools a command can use?

Yes, the allowed-tools frontmatter field allows you to whitelist specific capabilities like Read, Write, or restricted Bash operations for safety.

Claude Command Authoring

Name: Claude Command Authoring
Author: outfitter-dev

byoutfitter-dev

•

開発者ツール

Enables the creation of custom slash commands to extend Claude Code with reusable prompts, automated workflows, and context-aware scripts.

This skill provides Claude with the specialized knowledge required to build, configure, and validate custom slash commands within the Claude Code environment. It streamlines the authoring process by guiding users through frontmatter schema definitions, argument handling (such as $1 and $ARGUMENTS), and the integration of dynamic shell output via bash execution. By utilizing this skill, developers can transform repetitive prompt engineering tasks into standardized, project-specific or personal commands that integrate seamlessly with Claude's toolset and permission systems.

主な機能

01Validation checklists for command naming, structure, and quality

02Advanced argument handling using positional and global variables

03Standardized frontmatter schema generation for command metadata

04Granular tool permission management for secure command execution

0516 GitHub stars

06Dynamic context injection through integrated bash execution

ユースケース

01Creating project-specific code analysis tools that reference local config files

02Automating repetitive git workflows like staged change reviews and commits

03Building reusable deployment shortcuts that validate environments before execution

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add outfitter-dev/agents claude-command-authoring

For use in Claude.ai and ChatGPT

Download Skill