diff --git a/openclaw.mjs b/openclaw.mjs
index ee627376a5e..60aada1bd64 100755
--- a/openclaw.mjs
+++ b/openclaw.mjs
@@ -4,18 +4,27 @@ import module from "node:module";
 
 const MIN_NODE_MAJOR = 22;
 const MIN_NODE_MINOR = 12;
+const MIN_NODE_VERSION = `${MIN_NODE_MAJOR}.${MIN_NODE_MINOR}`;
+
+const parseNodeVersion = (rawVersion) => {
+  const [majorRaw = "0", minorRaw = "0"] = rawVersion.split(".");
+  return {
+    major: Number(majorRaw),
+    minor: Number(minorRaw),
+  };
+};
+
+const isSupportedNodeVersion = (version) =>
+  version.major > MIN_NODE_MAJOR ||
+  (version.major === MIN_NODE_MAJOR && version.minor >= MIN_NODE_MINOR);
 
 const ensureSupportedNodeVersion = () => {
-  const [majorRaw = "0", minorRaw = "0"] = process.versions.node.split(".");
-  const major = Number(majorRaw);
-  const minor = Number(minorRaw);
-  const supported = major > MIN_NODE_MAJOR || (major === MIN_NODE_MAJOR && minor >= MIN_NODE_MINOR);
-  if (supported) {
+  if (isSupportedNodeVersion(parseNodeVersion(process.versions.node))) {
     return;
   }
 
   process.stderr.write(
-    `openclaw: Node.js v${MIN_NODE_MAJOR}.${MIN_NODE_MINOR}+ is required (current: v${process.versions.node}).\n` +
+    `openclaw: Node.js v${MIN_NODE_VERSION}+ is required (current: v${process.versions.node}).\n` +
       "If you use nvm, run:\n" +
       "  nvm install 22\n" +
       "  nvm use 22\n" +
diff --git a/scripts/install.sh b/scripts/install.sh
index dbfe24eeff2..70d794b97e3 100755
--- a/scripts/install.sh
+++ b/scripts/install.sh
@@ -16,6 +16,9 @@ MUTED='\033[38;2;90;100;128m'       # text-muted    #5a6480
 NC='\033[0m' # No Color
 
 DEFAULT_TAGLINE="All your chats, one OpenClaw."
+NODE_MIN_MAJOR=22
+NODE_MIN_MINOR=12
+NODE_MIN_VERSION="${NODE_MIN_MAJOR}.${NODE_MIN_MINOR}"
 
 ORIGINAL_PATH="${PATH:-}"
 
@@ -1247,26 +1250,10 @@ install_homebrew() {
 }
 
 # Check Node.js version
-node_major_version() {
+parse_node_version_components() {
     if ! command -v node &> /dev/null; then
         return 1
     fi
-    local version major
-    version="$(node -v 2>/dev/null || true)"
-    major="${version#v}"
-    major="${major%%.*}"
-    if [[ "$major" =~ ^[0-9]+$ ]]; then
-        echo "$major"
-        return 0
-    fi
-    return 1
-}
-
-node_is_at_least_22_12() {
-    if ! command -v node &> /dev/null; then
-        return 1
-    fi
-
     local version major minor
     version="$(node -v 2>/dev/null || true)"
     major="${version#v}"
@@ -1281,11 +1268,32 @@ node_is_at_least_22_12() {
     if [[ ! "$minor" =~ ^[0-9]+$ ]]; then
         return 1
     fi
+    echo "${major} ${minor}"
+    return 0
+}
 
-    if [[ "$major" -gt 22 ]]; then
+node_major_version() {
+    local version_components major minor
+    version_components="$(parse_node_version_components || true)"
+    read -r major minor <<< "$version_components"
+    if [[ "$major" =~ ^[0-9]+$ && "$minor" =~ ^[0-9]+$ ]]; then
+        echo "$major"
         return 0
     fi
-    if [[ "$major" -eq 22 && "$minor" -ge 12 ]]; then
+    return 1
+}
+
+node_is_at_least_required() {
+    local version_components major minor
+    version_components="$(parse_node_version_components || true)"
+    read -r major minor <<< "$version_components"
+    if [[ ! "$major" =~ ^[0-9]+$ || ! "$minor" =~ ^[0-9]+$ ]]; then
+        return 1
+    fi
+    if [[ "$major" -gt "$NODE_MIN_MAJOR" ]]; then
+        return 0
+    fi
+    if [[ "$major" -eq "$NODE_MIN_MAJOR" && "$minor" -ge "$NODE_MIN_MINOR" ]]; then
         return 0
     fi
     return 1
@@ -1343,7 +1351,7 @@ ensure_macos_node22_active() {
 }
 
 ensure_node22_active_shell() {
-    if node_is_at_least_22_12; then
+    if node_is_at_least_required; then
         return 0
     fi
 
@@ -1351,7 +1359,7 @@ ensure_node22_active_shell() {
     active_path="$(command -v node 2>/dev/null || echo "not found")"
     active_version="$(node -v 2>/dev/null || echo "missing")"
 
-    ui_error "Active Node.js must be v22.12+ but this shell is using ${active_version} (${active_path})"
+    ui_error "Active Node.js must be v${NODE_MIN_VERSION}+ but this shell is using ${active_version} (${active_path})"
     print_active_node_paths || true
 
     local nvm_detected=0
@@ -1380,15 +1388,15 @@ ensure_node22_active_shell() {
 check_node() {
     if command -v node &> /dev/null; then
         NODE_VERSION="$(node_major_version || true)"
-        if node_is_at_least_22_12; then
+        if node_is_at_least_required; then
             ui_success "Node.js v$(node -v | cut -d'v' -f2) found"
             print_active_node_paths || true
             return 0
         else
             if [[ -n "$NODE_VERSION" ]]; then
-                ui_info "Node.js $(node -v) found, upgrading to v22.12+"
+                ui_info "Node.js $(node -v) found, upgrading to v${NODE_MIN_VERSION}+"
             else
-                ui_info "Node.js found but version could not be parsed; reinstalling v22.12+"
+                ui_info "Node.js found but version could not be parsed; reinstalling v${NODE_MIN_VERSION}+"
             fi
             return 1
         fi