Can I use bash commands within a custom prompt?

Yes, you can execute bash inline using backticks to gather dynamic context, such as git status or environment variables, before Claude processes the command.

Why should commands be written as instructions for Claude?

Since commands act as the prompt for the AI, writing them as direct instructions (e.g., 'Review this code...') rather than descriptions for the user ensures Claude performs the task correctly.

How do I pass arguments to my custom command?

You can use `$ARGUMENTS` to capture the entire input string or positional variables like `$1`, `$2`, and `$3` for specific parameters.

Where are custom slash commands stored in Claude Code?

Project-specific commands are stored in `.claude/commands/`, while personal commands available across all projects reside in `~/.claude/commands/`.

What is the purpose of the 'allowed-tools' field in frontmatter?

It specifies which tools (such as Read, Write, Edit, or Bash) the command is permitted to use, ensuring better security and more focused model behavior.

Slash Command Development

Name: Slash Command Development
Author: michelabboud

bymichelabboud

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Developer Tools

Empowers developers to design, implement, and optimize custom slash commands for Claude Code using YAML frontmatter and dynamic arguments.

About

Slash Command Development is a specialized skill for extending Claude Code's capabilities through custom prompt engineering and automated workflows. It provides comprehensive guidance on building reusable commands with YAML configuration, handling dynamic user arguments, and referencing local files or executing bash scripts for real-time context. By standardizing common tasks like code reviews, testing, and documentation through Markdown-based command files, users can significantly boost their productivity and ensure consistency across development teams and personal projects.

Key Features

YAML frontmatter configuration for tool permissions and model selection
Dynamic argument handling via $ARGUMENTS and positional variables
1 GitHub stars
Bash execution integration for gathering real-time repository state
Inline file referencing using @ syntax for automated context injection
Namespaced organization patterns for managing complex command libraries

Use Cases

Developing project-specific deployment scripts and documentation generators
Automating repetitive test execution and intelligent failure analysis
Creating standardized code review workflows for team-specific coding standards

About

Key Features

YAML frontmatter configuration for tool permissions and model selection
Dynamic argument handling via $ARGUMENTS and positional variables
1 GitHub stars
Bash execution integration for gathering real-time repository state
Inline file referencing using @ syntax for automated context injection
Namespaced organization patterns for managing complex command libraries

Use Cases

Developing project-specific deployment scripts and documentation generators
Automating repetitive test execution and intelligent failure analysis
Creating standardized code review workflows for team-specific coding standards