Embedded commands installer

Install a predefined set of embedded project commands from repository assets into a user-selected target directory. This is an interactive skill.

What is covered in this Skill?

• Interactive target selection (.github/commands, .claude/commands, .cursor/command, or .codex/commands)
• Deterministic copy of all embedded commands defined via XInclude from assets/commands
• Idempotent re-installation with clear overwrite reporting
• Support for four command framework destinations

Constraints

This skill installs only the embedded project commands bundle and must ask for destination before writing files.

• MUST ask the user to choose one of four command destinations before installing
• MUST copy all embedded command files defined in references/004-commands-installation.md
• MUST preserve file names from the reference content and report overwrite actions
• MUST create the destination directory if it does not exist