diff --git a/README.md b/README.md
index 18cf7df..6f9330a 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ A Go-based bootstrap tool that installs a development environment across
 macOS, Debian/Ubuntu, RHEL/Fedora, and Arch Linux on `x86_64` and `aarch64`.
 It installs system packages, optional Flatpak GUI apps, and a set of custom
 third-party tools (Go, Neovim, Zig, NVM, pyenv, oh-my-zsh, Firecracker on
-Linux).
+Linux, agy, claude, codex, and copilot).
 
 ## Install
 
@@ -40,5 +40,6 @@ Flags:
   headless: both are skipped.
 - `--no-vm` — macOS only: skip provisioning the Fedora-on-QEMU/VirtualBox VM
   that backs the `firecracker()` zsh wrapper.
+- `--no-ai` — skip installation of AI/LLM CLI tools (agy, claude, codex, copilot).
 
 Package lists live in `packages.go`. Edit and rebuild.
diff --git a/custom.go b/custom.go
index 241ee19..9fc6283 100644
--- a/custom.go
+++ b/custom.go
@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"os"
+	"os/exec"
 	"path/filepath"
 	"regexp"
 	"sort"
@@ -54,6 +55,7 @@ var defaultInstallPaths = map[string]string{
 	"pyenv":       "~/.pyenv",
 	"neovim":      "/usr/local/bin/nvim",
 	"oh-my-zsh":   "~/.oh-my-zsh",
+	"agy":         "~/.local/bin/agy",
 }
 
 func expandHome(p string) string {
@@ -84,10 +86,42 @@ func pipInstalled() bool {
 // isCustomPkgInstalled returns (installed, checkPath). pip ships inside the
 // Python distribution rather than at a fixed path, so it's detected with
 // `python3 -m pip --version`.
+func npmInstalled(cmdName string) (bool, string) {
+	if hasCmd(cmdName) {
+		if p, err := exec.LookPath(cmdName); err == nil {
+			return true, p
+		}
+		return true, ""
+	}
+	home, err := os.UserHomeDir()
+	if err != nil {
+		return false, ""
+	}
+	matches, _ := filepath.Glob(filepath.Join(home, ".local/share/pnpm/bin", cmdName))
+	if len(matches) > 0 {
+		return true, matches[0]
+	}
+	matches, _ = filepath.Glob(filepath.Join(home, ".nvm/versions/node/*/bin", cmdName))
+	if len(matches) > 0 {
+		return true, matches[0]
+	}
+	return false, ""
+}
+
 func isCustomPkgInstalled(pkg *CustomPackage) (bool, string) {
-	if strings.ToLower(pkg.Name) == "pip" {
+	name := strings.ToLower(pkg.Name)
+	if name == "pip" {
 		return pipInstalled(), ""
 	}
+	if name == "claude" {
+		return npmInstalled("claude")
+	}
+	if name == "codex" {
+		return npmInstalled("codex")
+	}
+	if name == "copilot" {
+		return npmInstalled("copilot")
+	}
 	raw := pkg.InstallPath
 	if raw == "" {
 		raw = defaultInstallPath(pkg)
@@ -428,6 +462,7 @@ func resolveLatest(pkg *CustomPackage) {
 
 func installCustomPackages(toInstall []*CustomPackage) {
 	fmt.Println("\n=== Custom Packages ===")
+	ensureNodeLTS()
 	for _, pkg := range toInstall {
 		name := strings.ToLower(pkg.Name)
 		_, checkPath := isCustomPkgInstalled(pkg)
@@ -448,6 +483,7 @@ func installCustomPackages(toInstall []*CustomPackage) {
 		switch name {
 		case "nvm":
 			installNVM()
+			ensureNodeLTS()
 			continue
 		case "pyenv":
 			installPyenv()
@@ -467,6 +503,18 @@ func installCustomPackages(toInstall []*CustomPackage) {
 			installNeovim(pkg, tmp)
 			os.RemoveAll(tmp)
 			continue
+		case "agy":
+			installAgy()
+			continue
+		case "claude":
+			installNpmPackage("@anthropic-ai/claude-code")
+			continue
+		case "codex":
+			installNpmPackage("@openai/codex")
+			continue
+		case "copilot":
+			installNpmPackage("@github/copilot")
+			continue
 		}
 
 		resolveLatest(pkg)
diff --git a/main.go b/main.go
index 2722ddf..e2d9452 100644
--- a/main.go
+++ b/main.go
@@ -33,6 +33,7 @@ func main() {
 	only := flag.String("only", "", "Install only the named section (system|flatpak|custom)")
 	gui := flag.Bool("gui", false, "Include GUI applications (headed environments).")
 	noVM := flag.Bool("no-vm", false, "macOS only: skip provisioning the Fedora-on-QEMU VM that backs the firecracker() zsh wrapper.")
+	noAI := flag.Bool("no-ai", false, "Skip installation of LLM/AI CLI tools (agy, claude, codex, copilot).")
 	flag.Parse()
 
 	switch *only {
@@ -54,6 +55,12 @@ func main() {
 		if isMacOS && strings.ToLower(custom[i].Name) == "firecracker" {
 			continue
 		}
+		if *noAI {
+			name := strings.ToLower(custom[i].Name)
+			if name == "agy" || name == "claude" || name == "codex" || name == "copilot" {
+				continue
+			}
+		}
 		customPtrs = append(customPtrs, &custom[i])
 	}
 
diff --git a/packages.go b/packages.go
index f17945b..21f3bf7 100644
--- a/packages.go
+++ b/packages.go
@@ -136,5 +136,9 @@ func customPackages() []CustomPackage {
 		{Name: "pyenv"},
 		{Name: "pip"},
 		{Name: "oh-my-zsh"},
+		{Name: "agy"},
+		{Name: "claude"},
+		{Name: "codex"},
+		{Name: "copilot"},
 	}
 }
diff --git a/post.go b/post.go
index e9c7375..37269ed 100644
--- a/post.go
+++ b/post.go
@@ -243,6 +243,11 @@ func ensureNodeLTS() {
 	if !runShell(`bash -c "source ~/.nvm/nvm.sh && nvm alias default 'lts/*' && nvm use --lts"`, CmdOpts{}).OK() {
 		errLog("Setting nvm default to LTS failed")
 	}
+
+	fmt.Println("[NVM] Enabling corepack and installing latest pnpm ...")
+	if !runShell(`bash -c 'source ~/.nvm/nvm.sh && corepack enable && corepack prepare pnpm@latest --activate && pnpm config set global-bin-dir "$HOME/.local/share/pnpm/bin"'`, CmdOpts{}).OK() {
+		errLog("Failed to enable corepack and prepare pnpm")
+	}
 }
 
 // ── oh-my-zsh ───────────────────────────────────────────────────────────
@@ -455,3 +460,24 @@ func askYN(prompt string) bool {
 	answer := strings.ToLower(strings.TrimSpace(string(buf[:n])))
 	return answer == "y"
 }
+
+func installAgy() {
+	fmt.Println("  Installing agy via curl ...")
+	if !runShell("curl -fsSL https://antigravity.google/cli/install.sh | bash", CmdOpts{}).OK() {
+		errLog("agy installation failed")
+	}
+}
+
+func installNpmPackage(pkgName string) {
+	home, _ := os.UserHomeDir()
+	if _, err := os.Stat(filepath.Join(home, ".nvm")); err != nil {
+		errLog("NVM is not installed — cannot install " + pkgName)
+		return
+	}
+	ensureNodeLTS()
+	fmt.Printf("  Installing %s via pnpm ...\n", pkgName)
+	if !runShell(fmt.Sprintf(`bash -c "source ~/.nvm/nvm.sh && pnpm add -g %s"`, pkgName), CmdOpts{}).OK() {
+		errLog(fmt.Sprintf("%s installation failed", pkgName))
+	}
+}
+