live-dev-init

This skill initializes the development environment and performs preflight checks before any other deployment or configuration tasks are run.

bash blocks are POSIX (Git Bash on Windows). Any logic beyond one command/pipe lives in resources/*.js (if applicable), never in shell control flow. If your Bash tool is cmd.exe or PowerShell, translate each snippet before running it.

1. Preflight (run silently, before planning)

Check	Probe	On fail
git, gh	`command -v git`, `command -v gh`, `gh auth status`	run `scripts/install-git-gh-macos.command` \| `scripts/install-git-gh-windows.ps1`. Never improvise install steps.
node	`node --version` ≥ `scripts/toolchain/catalog.json:node_lts_major`	`scripts/course-toolchain-macos.command base` \| `scripts/course-toolchain-windows.ps1 -Profile base`
vercel, firebase	`npx vercel whoami`, `npx firebase login:list`	`npm install -D vercel@latest firebase-tools` (never `-g`: EACCES). Login must pass before setting up config or deploying.
gitleaks	`command -v gitleaks`	install per table below, re-probe, never skip the scan gate

OS	Install	Fallback
macOS	`brew install gitleaks` — brew may NOT exist (course installer uses Xcode CLT + curl, not brew)	curl latest release `gitleaks_*_darwin_$(uname -m).tar.gz` → extract to `~/.local/bin` (mkdir + append to shell profile if absent). No sudo, no `/usr/local/bin`.
Windows	`winget install gitleaks.gitleaks`	download `gitleaks_*_windows_x64.zip` → extract `gitleaks.exe` → `%USERPROFILE%\bin` → `setx PATH "%PATH%;%USERPROFILE%\bin"`. `~/.local/bin` and shell profiles do not apply here.