diff --git a/test/helpers/plugins/tts-contract-suites.ts b/test/helpers/plugins/tts-contract-suites.ts
index f704f593486..376c9b8e779 100644
--- a/test/helpers/plugins/tts-contract-suites.ts
+++ b/test/helpers/plugins/tts-contract-suites.ts
@@ -7,6 +7,8 @@ import { createEmptyPluginRegistry } from "../../../src/plugins/registry-empty.j
 import { setActivePluginRegistry } from "../../../src/plugins/runtime.js";
 import type { SpeechProviderPlugin } from "../../../src/plugins/types.js";
 import { withEnv } from "../../../src/test-utils/env.js";
+import { summarizeText as summarizeTextCore } from "../../../src/tts/tts-core.js";
+import type { ResolvedTtsConfig } from "../../../src/tts/tts-types.js";
 
 type TtsRuntimeModule = typeof import("../../../src/tts/tts.js");
 
@@ -25,7 +27,6 @@ let maybeApplyTtsToPayload: TtsRuntimeModule["maybeApplyTtsToPayload"];
 let getTtsProvider: TtsRuntimeModule["getTtsProvider"];
 let parseTtsDirectives: TtsRuntimeModule["_test"]["parseTtsDirectives"];
 let resolveModelOverridePolicy: TtsRuntimeModule["_test"]["resolveModelOverridePolicy"];
-let summarizeText: TtsRuntimeModule["_test"]["summarizeText"];
 let getResolvedSpeechProviderConfig: TtsRuntimeModule["_test"]["getResolvedSpeechProviderConfig"];
 let formatTtsProviderError: TtsRuntimeModule["_test"]["formatTtsProviderError"];
 let sanitizeTtsErrorForLog: TtsRuntimeModule["_test"]["sanitizeTtsErrorForLog"];
@@ -415,7 +416,6 @@ async function setupTtsRuntime() {
   ({
     parseTtsDirectives,
     resolveModelOverridePolicy,
-    summarizeText,
     getResolvedSpeechProviderConfig,
     formatTtsProviderError,
     sanitizeTtsErrorForLog,
@@ -435,6 +435,35 @@ function setupTestSpeechProviderRegistry() {
   setActivePluginRegistry(registry, getTtsPluginRegistryCacheKey());
 }
 
+function createResolvedSummarizationConfig(cfg: OpenClawConfig): ResolvedTtsConfig {
+  const rawConfig =
+    typeof cfg.messages?.tts === "object" && cfg.messages?.tts !== null ? cfg.messages.tts : {};
+  return {
+    auto: "off",
+    mode: rawConfig.mode ?? "final",
+    provider: "",
+    providerSource:
+      typeof rawConfig.provider === "string" && rawConfig.provider ? "config" : "default",
+    summaryModel: typeof rawConfig.summaryModel === "string" ? rawConfig.summaryModel : undefined,
+    modelOverrides: {
+      enabled: true,
+      allowText: true,
+      allowProvider: false,
+      allowVoice: true,
+      allowModelId: true,
+      allowVoiceSettings: true,
+      allowNormalization: true,
+      allowSeed: true,
+    },
+    providerConfigs: {},
+    prefsPath: typeof rawConfig.prefsPath === "string" ? rawConfig.prefsPath : undefined,
+    maxTextLength: typeof rawConfig.maxTextLength === "number" ? rawConfig.maxTextLength : 4096,
+    timeoutMs: typeof rawConfig.timeoutMs === "number" ? rawConfig.timeoutMs : 30_000,
+    rawConfig,
+    sourceConfig: cfg,
+  };
+}
+
 async function setupSummarizationMocks() {
   ({ completeSimple } = await import("@mariozechner/pi-ai"));
   ({ getApiKeyForModel: getApiKeyForModelMock, requireApiKey: requireApiKeyMock } =
@@ -459,6 +488,7 @@ async function setupSummarizationMocks() {
       >,
   );
   vi.mocked(ensureCustomApiRegisteredMock).mockReset();
+  prepareModelForSimpleCompletionMock = vi.fn(({ model }) => model);
 }
 
 async function setupTtsContractTest() {
@@ -468,7 +498,7 @@ async function setupTtsContractTest() {
 }
 
 async function setupTtsSummarizationTest() {
-  await setupTtsContractTest();
+  vi.clearAllMocks();
   await setupSummarizationMocks();
 }
 
@@ -804,8 +834,8 @@ export function describeTtsSummarizationContract() {
       cfg?: OpenClawConfig;
     }) {
       const cfg = params?.cfg ?? baseCfg;
-      const config = resolveTtsConfig(cfg);
-      return await summarizeText(
+      const config = createResolvedSummarizationConfig(cfg);
+      return await summarizeTextCore(
         {
           text: params?.text ?? "Long text to summarize",
           targetLength: params?.targetLength ?? 500,