# Claude Code Custom Commands Legacy system for extending Claude Code with custom slash commands. Superseded by [[Claude Code Skills]], but existing commands continue to work. ## Types - **Project-specific**: stored under `<project root>/.claude/commands/`, prefix: `/project:` - **Personal**: stored under `~/.claude/commands`, prefix: `/user:` ## Syntax `/<prefix>:<command_name> [arguments]` Commands can be namespaced: `.claude/commands/frontend/component.md` → `/project:frontend:component` ## Arguments Dynamic values via the `$ARGUMENTS` placeholder: ```bash # Command definition echo "Fix issue #$ARGUMENTS following our coding standards" > .claude/commands/fix-issue.md # Usage > /project:fix-issue 123 ``` ## Requirements - Must use Markdown format (`.md` extension) - Content = the prompt or instructions - Placed in the appropriate commands directory ## References - Custom commands: https://docs.anthropic.com/en/docs/claude-code/slash-commands#custom-slash-commands ## Related - [[Claude Code]] - [[Claude Code Skills]]