diff --git a/tools/trap-sandbox/test-integration/lua/mcp-server-client.lua b/tools/trap-sandbox/test-integration/lua/mcp-server-client.lua
index 3fa5718..4c75cb7 100644
--- a/tools/trap-sandbox/test-integration/lua/mcp-server-client.lua
+++ b/tools/trap-sandbox/test-integration/lua/mcp-server-client.lua
@@ -38,7 +38,7 @@ sandbox.serve('exec-lua', function(payload)
 end, { eventloop = el });
 
 sandbox.serve('run-file', function(payload)
-  local result = mcp.executeFile(payload and payload.path);
+  local result = mcp.executeFile(payload and payload.path, nil, payload and payload.args);
   return true, {
     ok = result.ok,
     returns = result.returns or {},
diff --git a/tools/trap-sandbox/test-integration/mcp.test.ts b/tools/trap-sandbox/test-integration/mcp.test.ts
index d9ee787..7ad1e5c 100644
--- a/tools/trap-sandbox/test-integration/mcp.test.ts
+++ b/tools/trap-sandbox/test-integration/mcp.test.ts
@@ -56,7 +56,7 @@ test("MCP exec-lua / run-file / write-file / probe round-trip over the gateway",
       traposId: "7:base",
       code: "local h = fs.open('/mcp-it.lua', 'r'); local c = h.readAll(); h.close(); return c",
     });
-    assert.match(verify, /"shell.getRunningProgram/);
+    assert.match(verify, /shell\.getRunningProgram/);
 
     // Unknown traposId is a transport (not_connected) failure, not a crash.
     const ghost = await callTool(sandbox, "exec-lua", { traposId: "9:ghost", code: "return 1" });