diff --git a/scripts/docs-i18n/translator.go b/scripts/docs-i18n/translator.go
index 99d7ff1362d..1a0df12499e 100644
--- a/scripts/docs-i18n/translator.go
+++ b/scripts/docs-i18n/translator.go
@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"os"
 	"os/exec"
+	"path/filepath"
 	"strings"
 	"time"
 )
@@ -179,7 +180,11 @@ func runCodexExecPrompt(ctx context.Context, req codexPromptRequest) (string, er
 	_ = outputFile.Close()
 	defer os.Remove(outputPath)
 
-	codexHome, err := os.MkdirTemp("", "openclaw-docs-i18n-codex-home-*")
+	codexHomeBase, err := isolatedCodexHomeBase()
+	if err != nil {
+		return "", err
+	}
+	codexHome, err := os.MkdirTemp(codexHomeBase, "codex-home-*")
 	if err != nil {
 		return "", err
 	}
@@ -217,6 +222,22 @@ func runCodexExecPrompt(ctx context.Context, req codexPromptRequest) (string, er
 	return translated, nil
 }
 
+func isolatedCodexHomeBase() (string, error) {
+	cacheDir, err := os.UserCacheDir()
+	if err != nil || strings.TrimSpace(cacheDir) == "" {
+		homeDir, homeErr := os.UserHomeDir()
+		if homeErr != nil {
+			return "", err
+		}
+		cacheDir = filepath.Join(homeDir, ".cache")
+	}
+	base := filepath.Join(cacheDir, "openclaw-docs-i18n")
+	if err := os.MkdirAll(base, 0o700); err != nil {
+		return "", err
+	}
+	return base, nil
+}
+
 func docsCodexExecutable() string {
 	if executable := strings.TrimSpace(os.Getenv(envDocsI18nCodexExecutable)); executable != "" {
 		return executable
diff --git a/scripts/docs-i18n/translator_test.go b/scripts/docs-i18n/translator_test.go
index de3449c9b98..68df3932331 100644
--- a/scripts/docs-i18n/translator_test.go
+++ b/scripts/docs-i18n/translator_test.go
@@ -153,6 +153,12 @@ if [ -z "${CODEX_HOME:-}" ]; then
   echo "missing CODEX_HOME" >&2
   exit 1
 fi
+case "$CODEX_HOME" in
+  /tmp/*)
+    echo "CODEX_HOME must not be under /tmp" >&2
+    exit 1
+    ;;
+esac
 printf 'translated from codex\n' > "$out"
 `), 0o755); err != nil {
 		t.Fatalf("write fake codex: %v", err)