diff --git a/extensions/llama-cpp/src/inference-provider.test.ts b/extensions/llama-cpp/src/inference-provider.test.ts
index 214dacb61ede..630e0a416738 100644
--- a/extensions/llama-cpp/src/inference-provider.test.ts
+++ b/extensions/llama-cpp/src/inference-provider.test.ts
@@ -54,16 +54,15 @@ vi.mock("node-llama-cpp", () => ({
   },
 }));
 
-import {
-  createLlamaCppInferenceRuntime,
-  llamaCppInferenceTestApi,
-  type LlamaCppInferenceRuntime,
-} from "./inference-provider.js";
+import { createLlamaCppInferenceRuntime } from "./inference-provider.js";
 
-if (!llamaCppInferenceTestApi) {
-  throw new Error("expected llama.cpp inference test API");
-}
-const { mapContextToLlamaChatHistory, mapToolsToLlamaFunctions } = llamaCppInferenceTestApi;
+const { mapContextToLlamaChatHistory, mapToolsToLlamaFunctions } = (
+  globalThis as Record<PropertyKey, unknown>
+)[Symbol.for("openclaw.llamaCppInferenceTestApi")] as {
+  mapContextToLlamaChatHistory: (context: Context) => unknown[];
+  mapToolsToLlamaFunctions: (context: Context) => Record<string, unknown> | undefined;
+};
+type LlamaCppInferenceRuntime = ReturnType<typeof createLlamaCppInferenceRuntime>;
 let inferenceRuntime: LlamaCppInferenceRuntime;
 
 const model: Model = {
diff --git a/extensions/llama-cpp/src/inference-provider.ts b/extensions/llama-cpp/src/inference-provider.ts
index f55dee5bd4d2..80eb7138f3af 100644
--- a/extensions/llama-cpp/src/inference-provider.ts
+++ b/extensions/llama-cpp/src/inference-provider.ts
@@ -49,7 +49,7 @@ type LlamaCppInferenceRuntimeState = {
   disposePromise?: Promise<void>;
 };
 
-export type LlamaCppInferenceRuntime = {
+type LlamaCppInferenceRuntime = {
   createStreamFn: (params: { providerConfig?: ModelProviderConfig }) => StreamFn;
   dispose: () => Promise<void>;
 };
@@ -681,10 +681,9 @@ export function createLlamaCppInferenceRuntime(): LlamaCppInferenceRuntime {
   };
 }
 
-export const llamaCppInferenceTestApi =
-  process.env.VITEST || process.env.NODE_ENV === "test"
-    ? {
-        mapContextToLlamaChatHistory,
-        mapToolsToLlamaFunctions,
-      }
-    : undefined;
+if (process.env.VITEST || process.env.NODE_ENV === "test") {
+  (globalThis as Record<PropertyKey, unknown>)[Symbol.for("openclaw.llamaCppInferenceTestApi")] = {
+    mapContextToLlamaChatHistory,
+    mapToolsToLlamaFunctions,
+  };
+}