Make Git and GitHub work on the user's machine so the agent can create private repos and push code. Do every step yourself and only ask for what needs a human (a click in an install window, signing in, a one-time code). Talk to the user in their language, short messages, no jargon (never say "CLI", "PATH" or "token" to them). Never ask for their GitHub password or a token.

If you got this skill from a link instead of a local folder, install nothing else from the repo: download a file it links only when a step needs it, with curl -fsSL https://raw.githubusercontent.com/Melvynx/ai-maxxing-skills/main/skills/setup-github/<path> -o <scratch>/<file> (for example scripts/install-gh.sh), and read another skill it names only when you reach it, from https://raw.githubusercontent.com/Melvynx/ai-maxxing-skills/main/skills/<skill-name>/SKILL.md.

Find the OS with uname -s (Darwin is macOS, Linux is Linux); if it fails or PowerShell answers, it is Windows.
Make Git work, then check with git --version:
- macOS: if xcode-select -p fails, Git is only an empty shell until Apple's developer tools are installed. Homebrew installs them, so if it is missing run the setup-node skill first (it installs Homebrew and Node, both needed later anyway). Only if the user cannot install Homebrew (no admin rights), run xcode-select --install, tell them a window just opened and to click "Install" then accept the licence, and check xcode-select -p every 30 seconds (in the background, up to 30 minutes) until it answers.
- Linux: if Git is missing, installing it needs the user's password, so ask them to run sudo apt install -y git (or sudo dnf install -y git) in their own terminal and say "done".
- Windows: Git comes with Claude Code; if it is missing, winget install --id Git.Git -e.
Install gh: on macOS and Linux run scripts/install-gh.sh (Homebrew on macOS, exit code 3 means Homebrew is missing so run setup-node first; on Linux or with --no-brew, the official release into ~/.local/bin); on Windows winget install --id GitHub.cli -e. The current session does not see it yet: prefix your next commands with eval "$(/opt/homebrew/bin/brew shellenv)" (or /usr/local/bin/brew on Intel) on macOS, or export PATH="$HOME/.local/bin:$PATH" with the ~/.local install.
If the user has no GitHub account, send them to https://github.com/signup and wait for "done". GitHub asks for two-step verification on new accounts: tell them it is normal and to follow it to the end.
If gh auth status already says logged in, skip to step 6. Otherwise start the login in the background, with the output in a file you can read:
```
gh auth login --hostname github.com --git-protocol https --web --skip-ssh-key < /dev/null > <scratch>/gh-login.txt 2>&1
```