Create Claude Code slash commands

Create custom slash commands for Claude Code

Automating recurring developer tasks (code review, issue triage, formatting) as reusable /slash commands scoped to project or user.

• · Command name and description
• · Command logic (markdown template with optional frontmatter)
• · Allowed tools and execution context

• · Markdown command file in .claude/commands/ or ~/.claude/commands/
• · Command registered and available as /command-name
• · Optional: dynamic content (bash, file references) in prompt

• · Claude Code harness
• · Markdown editor

• · .claude/commands/ directory exists (project scope)
• · Command description defined in frontmatter
• · Allowed-tools list matches command needs

• · Missing description frontmatter prevents command registration
• · Invalid allowed-tools reference causes permission errors
• · Dynamic bash content fails if command doesn't exist
• · Argument parsing fails if $ARGUMENTS format is incorrect

• · Supports frontmatter options (allowed-tools, argument-hint, model)
• · Dynamic content via bash (!) and file references (@) available
• · Namespacing by subdirectory reduces command collision