diff --git a/extensions/file-transfer/src/node-host/file-write.test.ts b/extensions/file-transfer/src/node-host/file-write.test.ts
index 448244fffe3..7dec22641b3 100644
--- a/extensions/file-transfer/src/node-host/file-write.test.ts
+++ b/extensions/file-transfer/src/node-host/file-write.test.ts
@@ -77,7 +77,7 @@ describe("handleFileWrite — happy path", () => {
 
     const entries = await fs.readdir(tmpRoot);
     const tmpFiles = entries.filter((n) => n.includes(".tmp"));
-    expect(tmpFiles).toEqual([]);
+    expect(tmpFiles).toStrictEqual([]);
   });
 });
 
diff --git a/extensions/openshell/src/openshell-core.test.ts b/extensions/openshell/src/openshell-core.test.ts
index b8de2525c9f..b79c31e1334 100644
--- a/extensions/openshell/src/openshell-core.test.ts
+++ b/extensions/openshell/src/openshell-core.test.ts
@@ -276,7 +276,7 @@ describe("openshell fs bridges", () => {
     await expect(fs.stat(path.join(outsideDir, "escape.txt"))).rejects.toMatchObject({
       code: "ENOENT",
     });
-    await expect(fs.readdir(outsideDir)).resolves.toEqual([]);
+    await expect(fs.readdir(outsideDir)).resolves.toStrictEqual([]);
     expect(backend.syncLocalPathToRemote).not.toHaveBeenCalled();
   });
 
diff --git a/src/infra/errors.test.ts b/src/infra/errors.test.ts
index bc3703a2a44..4f7a6550d25 100644
--- a/src/infra/errors.test.ts
+++ b/src/infra/errors.test.ts
@@ -50,7 +50,7 @@ describe("error helpers", () => {
         ...((current as { errors?: unknown[] }).errors ?? []),
       ]),
     ).toEqual([root, child, leaf]);
-    expect(collectErrorGraphCandidates(null)).toEqual([]);
+    expect(collectErrorGraphCandidates(null)).toStrictEqual([]);
   });
 
   it("matches errno-shaped errors by code", () => {
diff --git a/src/infra/heartbeat-runner.scheduler.test.ts b/src/infra/heartbeat-runner.scheduler.test.ts
index e3728bb1f1b..8a92cf2e358 100644
--- a/src/infra/heartbeat-runner.scheduler.test.ts
+++ b/src/infra/heartbeat-runner.scheduler.test.ts
@@ -356,7 +356,7 @@ describe("startHeartbeatRunner", () => {
     const scheduledSlotCallsBeforeInterval = callTimes.filter(
       (time) => time >= firstDueMs + intervalMs,
     );
-    expect(scheduledSlotCallsBeforeInterval).toEqual([]);
+    expect(scheduledSlotCallsBeforeInterval).toStrictEqual([]);
 
     // The next interval tick at the next scheduled slot should still fire —
     // the retries must not push the phase out by multiple intervals.
@@ -508,7 +508,7 @@ describe("startHeartbeatRunner", () => {
       },
     });
     const financeCalls = runSpy.mock.calls.filter((call) => call[0]?.agentId === "finance");
-    expect(financeCalls).toEqual([]);
+    expect(financeCalls).toStrictEqual([]);
 
     runner.stop();
   });
diff --git a/src/infra/path-prepend.test.ts b/src/infra/path-prepend.test.ts
index b464d601182..a02a80cb180 100644
--- a/src/infra/path-prepend.test.ts
+++ b/src/infra/path-prepend.test.ts
@@ -25,7 +25,7 @@ describe("path prepend helpers", () => {
     expect(
       normalizePathPrepend([" /custom/bin ", "", " /custom/bin ", "/opt/bin", 42 as any]),
     ).toEqual(["/custom/bin", "/opt/bin"]);
-    expect(normalizePathPrepend()).toEqual([]);
+    expect(normalizePathPrepend()).toStrictEqual([]);
   });
 
   it.each([
diff --git a/src/infra/provider-usage.auth.plugin.test.ts b/src/infra/provider-usage.auth.plugin.test.ts
index 4cc79ee4235..97e47626b81 100644
--- a/src/infra/provider-usage.auth.plugin.test.ts
+++ b/src/infra/provider-usage.auth.plugin.test.ts
@@ -95,7 +95,7 @@ describe("resolveProviderAuths plugin boundary", () => {
           skipPluginAuthWithoutCredentialSource: true,
           env: { HOME: homeDir },
         }),
-      ).resolves.toEqual([]);
+      ).resolves.toStrictEqual([]);
     });
 
     expect(resolveProviderUsageAuthWithPluginMock).not.toHaveBeenCalled();
@@ -304,7 +304,7 @@ describe("resolveProviderAuths plugin boundary", () => {
           skipPluginAuthWithoutCredentialSource: true,
           env: { HOME: homeDir },
         }),
-      ).resolves.toEqual([]);
+      ).resolves.toStrictEqual([]);
     });
 
     expect(ensureAuthProfileStoreWithoutExternalProfilesMock).toHaveBeenCalledTimes(1);
diff --git a/src/node-host/invoke-system-run.test.ts b/src/node-host/invoke-system-run.test.ts
index 5a98382c1c3..5bb7d1f245d 100644
--- a/src/node-host/invoke-system-run.test.ts
+++ b/src/node-host/invoke-system-run.test.ts
@@ -1323,7 +1323,7 @@ describe("handleSystemRunInvoke mac app exec host routing", () => {
 
           expect(runCommand).toHaveBeenCalledTimes(1);
           expectInvokeOk(sendInvokeResult, { payloadContains: "inline-eval-ok" });
-          expect(loadExecApprovals().agents?.main?.allowlist ?? []).toEqual([]);
+          expect(loadExecApprovals().agents?.main?.allowlist ?? []).toStrictEqual([]);
         },
       });
     } finally {
@@ -1427,7 +1427,7 @@ describe("handleSystemRunInvoke mac app exec host routing", () => {
 
           expect(runCommand).toHaveBeenCalledTimes(1);
           expectInvokeOk(sendInvokeResult, { payloadContains: "inline-eval-ok" });
-          expect(loadExecApprovals().agents?.main?.allowlist ?? []).toEqual([]);
+          expect(loadExecApprovals().agents?.main?.allowlist ?? []).toStrictEqual([]);
         },
       });
     } finally {
diff --git a/src/tui/osc8-hyperlinks.test.ts b/src/tui/osc8-hyperlinks.test.ts
index eefb631781f..08450c46b68 100644
--- a/src/tui/osc8-hyperlinks.test.ts
+++ b/src/tui/osc8-hyperlinks.test.ts
@@ -51,7 +51,7 @@ describe("extractUrls", () => {
   });
 
   it("returns empty array for text without URLs", () => {
-    expect(extractUrls("No links here")).toEqual([]);
+    expect(extractUrls("No links here")).toStrictEqual([]);
   });
 
   it("handles URLs with query params and fragments", () => {