diff --git a/vibn-frontend/app/api/mcp/route.ts b/vibn-frontend/app/api/mcp/route.ts
index e6aff6b..559b941 100644
--- a/vibn-frontend/app/api/mcp/route.ts
+++ b/vibn-frontend/app/api/mcp/route.ts
@@ -5050,7 +5050,7 @@ print(n)`;
 
   const b64 = Buffer.from(JSON.stringify(payload), "utf8").toString("base64");
   const pyB64 = Buffer.from(py, "utf8").toString("base64");
-  const cmd = `python3 -c "$(printf %s ${shq(pyB64)} | base64 -d)" <<< "$(printf %s ${shq(b64)} | base64 -d)" && echo "---" && sha256sum ${shq(path)} | cut -d' ' -f1 && wc -c < ${shq(path)}`;
+  const cmd = `printf %s ${shq(b64)} | base64 -d | python3 -c "$(printf %s ${shq(pyB64)} | base64 -d)" && echo "---" && sha256sum ${shq(path)} | cut -d' ' -f1 && wc -c < ${shq(path)}`;
 
   const r = await runFsCmd(principal, project, cmd);
   if (r.code !== 0) {