diff --git a/fibjs/scripts/cov-process.js b/fibjs/scripts/opt_tools/cov-process.js
similarity index 100%
rename from fibjs/scripts/cov-process.js
rename to fibjs/scripts/opt_tools/cov-process.js
diff --git a/fibjs/scripts/prof-process.js b/fibjs/scripts/opt_tools/prof-process.js
similarity index 100%
rename from fibjs/scripts/prof-process.js
rename to fibjs/scripts/opt_tools/prof-process.js
diff --git a/fibjs/src/base/opt_tools.cpp b/fibjs/src/base/opt_tools.cpp
index e18fca5de4..f2ccc698fc 100644
--- a/fibjs/src/base/opt_tools.cpp
+++ b/fibjs/src/base/opt_tools.cpp
@@ -9,189 +9,7 @@
 
 namespace fibjs {
 const char* opt_tools[] = {
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@@ -3792,7 +280,7 @@ const char* opt_tools[] = {
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+    "\x20\x74\x72\x75\x65\x3b\x0a\x20\x20\x66\x69\x6e\x69\x73\x68\x4d\x61\x79\x62\x65\x28\x73\x74\x72\x65\x61\x6d\x2c\x20\x73"
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+    "\x20\x77\x68\x69\x6c\x65\x20\x28\x65\x6e\x74\x72\x79\x29\x20\x7b\x0a\x20\x20\x20\x20\x76\x61\x72\x20\x63\x62\x20\x3d\x20"
+    "\x65\x6e\x74\x72\x79\x2e\x63\x61\x6c\x6c\x62\x61\x63\x6b\x3b\x0a\x20\x20\x20\x20\x73\x74\x61\x74\x65\x2e\x70\x65\x6e\x64"
+    "\x69\x6e\x67\x63\x62\x2d\x2d\x3b\x0a\x20\x20\x20\x20\x63\x62\x28\x65\x72\x72\x29\x3b\x0a\x20\x20\x20\x20\x65\x6e\x74\x72"
+    "\x79\x20\x3d\x20\x65\x6e\x74\x72\x79\x2e\x6e\x65\x78\x74\x3b\x0a\x20\x20\x7d\x0a\x20\x20\x69\x66\x20\x28\x73\x74\x61\x74"
+    "\x65\x2e\x63\x6f\x72\x6b\x65\x64\x52\x65\x71\x75\x65\x73\x74\x73\x46\x72\x65\x65\x29\x20\x7b\x0a\x20\x20\x20\x20\x73\x74"
+    "\x61\x74\x65\x2e\x63\x6f\x72\x6b\x65\x64\x52\x65\x71\x75\x65\x73\x74\x73\x46\x72\x65\x65\x2e\x6e\x65\x78\x74\x20\x3d\x20"
+    "\x63\x6f\x72\x6b\x52\x65\x71\x3b\x0a\x20\x20\x7d\x20\x65\x6c\x73\x65\x20\x7b\x0a\x20\x20\x20\x20\x73\x74\x61\x74\x65\x2e"
+    "\x63\x6f\x72\x6b\x65\x64\x52\x65\x71\x75\x65\x73\x74\x73\x46\x72\x65\x65\x20\x3d\x20\x63\x6f\x72\x6b\x52\x65\x71\x3b\x0a"
+    "\x20\x20\x7d\x0a\x7d\x0a\x0a\x4f\x62\x6a\x65\x63\x74\x2e\x64\x65\x66\x69\x6e\x65\x50\x72\x6f\x70\x65\x72\x74\x79\x28\x57"
+    "\x72\x69\x74\x61\x62\x6c\x65\x2e\x70\x72\x6f\x74\x6f\x74\x79\x70\x65\x2c\x20\x27\x64\x65\x73\x74\x72\x6f\x79\x65\x64\x27"
+    "\x2c\x20\x7b\x0a\x20\x20\x67\x65\x74\x28\x29\x20\x7b\x0a\x20\x20\x20\x20\x69\x66\x20\x28\x74\x68\x69\x73\x2e\x5f\x77\x72"
+    "\x69\x74\x61\x62\x6c\x65\x53\x74\x61\x74\x65\x20\x3d\x3d\x3d\x20\x75\x6e\x64\x65\x66\x69\x6e\x65\x64\x29\x20\x7b\x0a\x20"
+    "\x20\x20\x20\x20\x20\x72\x65\x74\x75\x72\x6e\x20\x66\x61\x6c\x73\x65\x3b\x0a\x20\x20\x20\x20\x7d\x0a\x20\x20\x20\x20\x72"
+    "\x65\x74\x75\x72\x6e\x20\x74\x68\x69\x73\x2e\x5f\x77\x72\x69\x74\x61\x62\x6c\x65\x53\x74\x61\x74\x65\x2e\x64\x65\x73\x74"
+    "\x72\x6f\x79\x65\x64\x3b\x0a\x20\x20\x7d\x2c\x0a\x20\x20\x73\x65\x74\x28\x76\x61\x6c\x75\x65\x29\x20\x7b\x0a\x20\x20\x20"
+    "\x20\x2f\x2f\x20\x77\x65\x20\x69\x67\x6e\x6f\x72\x65\x20\x74\x68\x65\x20\x76\x61\x6c\x75\x65\x20\x69\x66\x20\x74\x68\x65"
+    "\x20\x73\x74\x72\x65\x61\x6d\x0a\x20\x20\x20\x20\x2f\x2f\x20\x68\x61\x73\x20\x6e\x6f\x74\x20\x62\x65\x65\x6e\x20\x69\x6e"
+    "\x69\x74\x69\x61\x6c\x69\x7a\x65\x64\x20\x79\x65\x74\x0a\x20\x20\x20\x20\x69\x66\x20\x28\x21\x74\x68\x69\x73\x2e\x5f\x77"
+    "\x72\x69\x74\x61\x62\x6c\x65\x53\x74\x61\x74\x65\x29\x20\x7b\x0a\x20\x20\x20\x20\x20\x20\x72\x65\x74\x75\x72\x6e\x3b\x0a"
+    "\x20\x20\x20\x20\x7d\x0a\x0a\x20\x20\x20\x20\x2f\x2f\x20\x62\x61\x63\x6b\x77\x61\x72\x64\x20\x63\x6f\x6d\x70\x61\x74\x69"
+    "\x62\x69\x6c\x69\x74\x79\x2c\x20\x74\x68\x65\x20\x75\x73\x65\x72\x20\x69\x73\x20\x65\x78\x70\x6c\x69\x63\x69\x74\x6c\x79"
+    "\x0a\x20\x20\x20\x20\x2f\x2f\x20\x6d\x61\x6e\x61\x67\x69\x6e\x67\x20\x64\x65\x73\x74\x72\x6f\x79\x65\x64\x0a\x20\x20\x20"
+    "\x20\x74\x68\x69\x73\x2e\x5f\x77\x72\x69\x74\x61\x62\x6c\x65\x53\x74\x61\x74\x65\x2e\x64\x65\x73\x74\x72\x6f\x79\x65\x64"
+    "\x20\x3d\x20\x76\x61\x6c\x75\x65\x3b\x0a\x20\x20\x7d\x0a\x7d\x29\x3b\x0a\x0a\x57\x72\x69\x74\x61\x62\x6c\x65\x2e\x70\x72"
+    "\x6f\x74\x6f\x74\x79\x70\x65\x2e\x64\x65\x73\x74\x72\x6f\x79\x20\x3d\x20\x64\x65\x73\x74\x72\x6f\x79\x49\x6d\x70\x6c\x2e"
+    "\x64\x65\x73\x74\x72\x6f\x79\x3b\x0a\x57\x72\x69\x74\x61\x62\x6c\x65\x2e\x70\x72\x6f\x74\x6f\x74\x79\x70\x65\x2e\x5f\x75"
+    "\x6e\x64\x65\x73\x74\x72\x6f\x79\x20\x3d\x20\x64\x65\x73\x74\x72\x6f\x79\x49\x6d\x70\x6c\x2e\x75\x6e\x64\x65\x73\x74\x72"
+    "\x6f\x79\x3b\x0a\x57\x72\x69\x74\x61\x62\x6c\x65\x2e\x70\x72\x6f\x74\x6f\x74\x79\x70\x65\x2e\x5f\x64\x65\x73\x74\x72\x6f"
+    "\x79\x20\x3d\x20\x66\x75\x6e\x63\x74\x69\x6f\x6e\x20\x28\x65\x72\x72\x2c\x20\x63\x62\x29\x20\x7b\x0a\x20\x20\x74\x68\x69"
+    "\x73\x2e\x65\x6e\x64\x28\x29\x3b\x0a\x20\x20\x63\x62\x28\x65\x72\x72\x29\x3b\x0a\x7d\x3b",
     NULL
 };
 }
\ No newline at end of file
diff --git a/fibjs/src/base/options.cpp b/fibjs/src/base/options.cpp
index 97529ef66a..9fcadc31c6 100644
--- a/fibjs/src/base/options.cpp
+++ b/fibjs/src/base/options.cpp
@@ -63,7 +63,10 @@ void options(int32_t& pos, char* argv[])
 
     for (pos = 1; (pos < argc) && (argv[pos][0] == '-'); pos++)
         if (argv[pos][1] == '-') {
-            for (i = 0; opt_tools[i] && qstrcmp(opt_tools[i], argv[pos] + 2); i += 2)
+            exlib::string tmp("opt_tools/");
+            tmp += argv[pos] + 2;
+
+            for (i = 0; opt_tools[i] && qstrcmp(opt_tools[i], tmp.c_str()); i += 2)
                 ;
 
             if (opt_tools[i])
diff --git a/fibjs/src/sandbox/SandBox_run.cpp b/fibjs/src/sandbox/SandBox_run.cpp
index c334449845..36188fdc92 100644
--- a/fibjs/src/sandbox/SandBox_run.cpp
+++ b/fibjs/src/sandbox/SandBox_run.cpp
@@ -21,8 +21,10 @@ result_t SandBox::run_main(exlib::string fname, v8::Local<v8::Array> argv)
 
     if (fname[0] == '-' && fname[1] == '-') {
         int32_t i;
+        exlib::string tmp("opt_tools/");
+        tmp += fname.c_str() + 2;
 
-        for (i = 0; opt_tools[i] && qstrcmp(opt_tools[i], fname.c_str() + 2); i += 2)
+        for (i = 0; opt_tools[i] && qstrcmp(opt_tools[i], tmp.c_str()); i += 2)
             ;
         bin = new Buffer(opt_tools[i + 1]);
     } else {