diff --git a/extensions/browser/src/cli/browser-cli-manage.test-helpers.ts b/extensions/browser/src/cli/browser-cli-manage.test-helpers.ts
index 469c5211137..7f89fd2bb33 100644
--- a/extensions/browser/src/cli/browser-cli-manage.test-helpers.ts
+++ b/extensions/browser/src/cli/browser-cli-manage.test-helpers.ts
@@ -10,7 +10,11 @@ type BrowserRequest = {
 };
 type BrowserRuntimeOptions = { timeoutMs?: number };
 
-type BrowserManageCall = [unknown, BrowserRequest, BrowserRuntimeOptions | undefined];
+type BrowserManageCall = [
+  { timeout?: string } | undefined,
+  BrowserRequest,
+  BrowserRuntimeOptions | undefined,
+];
 
 const browserManageMocks = vi.hoisted(() => ({
   callBrowserRequest: vi.fn<
diff --git a/extensions/googlechat/src/google-auth.runtime.test.ts b/extensions/googlechat/src/google-auth.runtime.test.ts
index 38652e10c41..55917adab57 100644
--- a/extensions/googlechat/src/google-auth.runtime.test.ts
+++ b/extensions/googlechat/src/google-auth.runtime.test.ts
@@ -454,6 +454,9 @@ describe("googlechat google auth runtime", () => {
         credentialsFile: credentialsPath,
         enabled: true,
       });
+      if (!credentials) {
+        throw new Error("expected validated credentials");
+      }
       expect(credentials.client_email).toBe("bot@example.iam.gserviceaccount.com");
       expect(credentials.token_uri).toBe("https://oauth2.googleapis.com/token");
       expect(credentials.type).toBe("service_account");
@@ -496,6 +499,9 @@ describe("googlechat google auth runtime", () => {
         credentialsFile: symlinkPath,
         enabled: true,
       });
+      if (!credentials) {
+        throw new Error("expected validated credentials");
+      }
       expect(credentials.client_email).toBe("bot@example.iam.gserviceaccount.com");
       expect(credentials.token_uri).toBe("https://oauth2.googleapis.com/token");
       expect(credentials.type).toBe("service_account");
diff --git a/extensions/memory-core/src/memory-events.test.ts b/extensions/memory-core/src/memory-events.test.ts
index f33d8489994..fe6f6876127 100644
--- a/extensions/memory-core/src/memory-events.test.ts
+++ b/extensions/memory-core/src/memory-events.test.ts
@@ -62,11 +62,17 @@ describe("memory host event journal integration", () => {
       "memory.recall.recorded",
       "memory.promotion.applied",
     ]);
-    expect(events[0]?.type).toBe("memory.recall.recorded");
-    expect(events[0]?.resultCount).toBe(1);
-    expect(events[0]?.query).toBe("alpha memory");
-    expect(events[1]?.type).toBe("memory.promotion.applied");
-    expect(events[1]?.applied).toBe(1);
+    const recallEvent = events[0];
+    if (recallEvent?.type !== "memory.recall.recorded") {
+      throw new Error("expected recall event");
+    }
+    expect(recallEvent.resultCount).toBe(1);
+    expect(recallEvent.query).toBe("alpha memory");
+    const promotionEvent = events[1];
+    if (promotionEvent?.type !== "memory.promotion.applied") {
+      throw new Error("expected promotion event");
+    }
+    expect(promotionEvent.applied).toBe(1);
   });
 
   it("records dreaming completion events when phase artifacts are written", async () => {
@@ -89,9 +95,12 @@ describe("memory host event journal integration", () => {
     await expect(fs.readFile(written.inlinePath ?? "", "utf8")).resolves.toContain("- staged note");
     await expect(fs.readFile(written.reportPath ?? "", "utf8")).resolves.toContain("- second note");
     expect(events).toHaveLength(1);
-    expect(events[0]?.type).toBe("memory.dream.completed");
-    expect(events[0]?.phase).toBe("light");
-    expect(events[0]?.lineCount).toBe(2);
-    expect(events[0]?.storageMode).toBe("both");
+    const dreamEvent = events[0];
+    if (dreamEvent?.type !== "memory.dream.completed") {
+      throw new Error("expected dream completion event");
+    }
+    expect(dreamEvent.phase).toBe("light");
+    expect(dreamEvent.lineCount).toBe(2);
+    expect(dreamEvent.storageMode).toBe("both");
   });
 });