diff --git a/test/scripts/barnacle-auto-response.test.ts b/test/scripts/barnacle-auto-response.test.ts
index bfdea763493..7748acb0c5c 100644
--- a/test/scripts/barnacle-auto-response.test.ts
+++ b/test/scripts/barnacle-auto-response.test.ts
@@ -403,10 +403,10 @@ describe("barnacle-auto-response", () => {
       },
     });
 
-    expect(calls.addLabels).toEqual([]);
-    expect(calls.createComment).toEqual([]);
-    expect(calls.removeLabel).toEqual([]);
-    expect(calls.update).toEqual([]);
+    expect(calls.addLabels).toStrictEqual([]);
+    expect(calls.createComment).toStrictEqual([]);
+    expect(calls.removeLabel).toStrictEqual([]);
+    expect(calls.update).toStrictEqual([]);
   });
 
   it("leaves stale Barnacle labels alone on maintainer-authored PRs", async () => {
@@ -433,10 +433,10 @@ describe("barnacle-auto-response", () => {
       },
     });
 
-    expect(calls.addLabels).toEqual([]);
-    expect(calls.createComment).toEqual([]);
-    expect(calls.removeLabel).toEqual([]);
-    expect(calls.update).toEqual([]);
+    expect(calls.addLabels).toStrictEqual([]);
+    expect(calls.createComment).toStrictEqual([]);
+    expect(calls.removeLabel).toStrictEqual([]);
+    expect(calls.update).toStrictEqual([]);
   });
 
   it("does not mutate maintainer-authored issues", async () => {
@@ -456,9 +456,9 @@ describe("barnacle-auto-response", () => {
       },
     });
 
-    expect(calls.addLabels).toEqual([]);
-    expect(calls.createComment).toEqual([]);
-    expect(calls.update).toEqual([]);
+    expect(calls.addLabels).toStrictEqual([]);
+    expect(calls.createComment).toStrictEqual([]);
+    expect(calls.update).toStrictEqual([]);
   });
 
   it("does not action close labels on maintainer-authored issues", async () => {
@@ -485,8 +485,8 @@ describe("barnacle-auto-response", () => {
       },
     });
 
-    expect(calls.createComment).toEqual([]);
-    expect(calls.update).toEqual([]);
+    expect(calls.createComment).toStrictEqual([]);
+    expect(calls.update).toStrictEqual([]);
   });
 
   it("closes issues tagged as false positives", async () => {
@@ -541,8 +541,8 @@ describe("barnacle-auto-response", () => {
       },
     });
 
-    expect(calls.createComment).toEqual([]);
-    expect(calls.update).toEqual([]);
+    expect(calls.createComment).toStrictEqual([]);
+    expect(calls.update).toStrictEqual([]);
   });
 
   it("does not close automation PRs for the active PR limit", async () => {
@@ -606,8 +606,8 @@ describe("barnacle-auto-response", () => {
     });
 
     expect(calls.removeLabel).toContainEqual(expect.objectContaining({ name: "r: too-many-prs" }));
-    expect(calls.createComment).toEqual([]);
-    expect(calls.update).toEqual([]);
+    expect(calls.createComment).toStrictEqual([]);
+    expect(calls.update).toStrictEqual([]);
   });
 
   it("does not close GitHub App-authored PRs when stale PR-limit label removal returns 404", async () => {
@@ -632,8 +632,8 @@ describe("barnacle-auto-response", () => {
     });
 
     expect(calls.removeLabel).toContainEqual(expect.objectContaining({ name: "r: too-many-prs" }));
-    expect(calls.createComment).toEqual([]);
-    expect(calls.update).toEqual([]);
+    expect(calls.createComment).toStrictEqual([]);
+    expect(calls.update).toStrictEqual([]);
   });
 
   it("still adds candidate labels to broad contributor PRs", async () => {
@@ -657,8 +657,8 @@ describe("barnacle-auto-response", () => {
         labels: expect.arrayContaining([candidateLabels.dirtyCandidate]),
       }),
     );
-    expect(calls.createComment).toEqual([]);
-    expect(calls.update).toEqual([]);
+    expect(calls.createComment).toStrictEqual([]);
+    expect(calls.update).toStrictEqual([]);
   });
 
   it("adds proof labels to external PRs without auto-closing by default", async () => {
@@ -677,8 +677,8 @@ describe("barnacle-auto-response", () => {
         labels: expect.arrayContaining([candidateLabels.needsRealBehaviorProof]),
       }),
     );
-    expect(calls.createComment).toEqual([]);
-    expect(calls.update).toEqual([]);
+    expect(calls.createComment).toStrictEqual([]);
+    expect(calls.update).toStrictEqual([]);
   });
 
   it("removes stale proof labels when override is present", async () => {
@@ -706,7 +706,7 @@ describe("barnacle-auto-response", () => {
         PROOF_SUFFICIENT_LABEL,
       ]),
     );
-    expect(calls.update).toEqual([]);
+    expect(calls.update).toStrictEqual([]);
   });
 
   it("removes stale negative proof labels and adds supplied when proof is present", async () => {
@@ -856,8 +856,8 @@ describe("barnacle-auto-response", () => {
       },
     });
 
-    expect(calls.createComment).toEqual([]);
-    expect(calls.update).toEqual([]);
+    expect(calls.createComment).toStrictEqual([]);
+    expect(calls.update).toStrictEqual([]);
   });
 
   it("actions existing candidate labels when a maintainer adds trigger-response", async () => {
diff --git a/test/scripts/bundled-plugin-build-entries.test.ts b/test/scripts/bundled-plugin-build-entries.test.ts
index 27208097301..20c5cfc5ea9 100644
--- a/test/scripts/bundled-plugin-build-entries.test.ts
+++ b/test/scripts/bundled-plugin-build-entries.test.ts
@@ -119,7 +119,7 @@ describe("bundled plugin build entries", () => {
       expect(entry).toContain('specifier: "./secret-contract-api.js"');
     });
 
-    expect(offenders).toEqual([]);
+    expect(offenders).toStrictEqual([]);
 
     for (const pluginId of [...secretBackedPluginIds].toSorted()) {
       if (excludedPackageDirs.has(pluginId)) {
@@ -146,6 +146,6 @@ describe("bundled plugin build entries", () => {
       }
     });
 
-    expect(offenders).toEqual([]);
+    expect(offenders).toStrictEqual([]);
   });
 });
diff --git a/test/scripts/check-changelog-attributions.test.ts b/test/scripts/check-changelog-attributions.test.ts
index d90dd10883d..b9b25d00893 100644
--- a/test/scripts/check-changelog-attributions.test.ts
+++ b/test/scripts/check-changelog-attributions.test.ts
@@ -24,7 +24,7 @@ describe("check-changelog-attributions", () => {
       findForbiddenChangelogThanks(
         "- User-facing fix. Fixes #123. Thanks @external-contributor and @other-user.",
       ),
-    ).toEqual([]);
+    ).toStrictEqual([]);
   });
 
   it("keeps PR changelog gates on the same attribution policy", () => {
diff --git a/test/scripts/check-channel-agnostic-boundaries.test.ts b/test/scripts/check-channel-agnostic-boundaries.test.ts
index f82f355dd85..20a4305e6fa 100644
--- a/test/scripts/check-channel-agnostic-boundaries.test.ts
+++ b/test/scripts/check-channel-agnostic-boundaries.test.ts
@@ -64,7 +64,7 @@ describe("check-channel-agnostic-boundaries", () => {
       const payload = { mode: "persistent" };
       const x = cfg.session.threadBindings?.enabled;
     `;
-    expect(findChannelAgnosticBoundaryViolations(source)).toEqual([]);
+    expect(findChannelAgnosticBoundaryViolations(source)).toStrictEqual([]);
   });
 
   it("reverse-deps mode flags channel module re-exports", () => {
@@ -84,7 +84,7 @@ describe("check-channel-agnostic-boundaries", () => {
       const channel = "discord";
       const x = cfg.channels.discord?.threadBindings?.enabled;
     `;
-    expect(findChannelCoreReverseDependencyViolations(source)).toEqual([]);
+    expect(findChannelCoreReverseDependencyViolations(source)).toStrictEqual([]);
   });
 
   it("user-facing text mode flags channel names in string literals", () => {
@@ -103,7 +103,7 @@ describe("check-channel-agnostic-boundaries", () => {
     const source = `
       import { x } from "../discord/monitor/thread-bindings.js";
     `;
-    expect(findAcpUserFacingChannelNameViolations(source)).toEqual([]);
+    expect(findAcpUserFacingChannelNameViolations(source)).toStrictEqual([]);
   });
 
   it("system-mark guard flags hardcoded gear literals", () => {
@@ -122,6 +122,6 @@ describe("check-channel-agnostic-boundaries", () => {
     const source = `
       import { x } from "../infra/system-message.js";
     `;
-    expect(findSystemMarkLiteralViolations(source)).toEqual([]);
+    expect(findSystemMarkLiteralViolations(source)).toStrictEqual([]);
   });
 });
diff --git a/test/scripts/check-extension-wildcard-reexports.test.ts b/test/scripts/check-extension-wildcard-reexports.test.ts
index 705a11c1289..0550b81068f 100644
--- a/test/scripts/check-extension-wildcard-reexports.test.ts
+++ b/test/scripts/check-extension-wildcard-reexports.test.ts
@@ -26,6 +26,6 @@ describe("check-extension-wildcard-reexports", () => {
           'export * from "external-package";',
         ].join("\n"),
       ),
-    ).toEqual([]);
+    ).toStrictEqual([]);
   });
 });
diff --git a/test/scripts/check-plugin-sdk-wildcard-reexports.test.ts b/test/scripts/check-plugin-sdk-wildcard-reexports.test.ts
index 635a9ce1dc7..4f1c96ced7d 100644
--- a/test/scripts/check-plugin-sdk-wildcard-reexports.test.ts
+++ b/test/scripts/check-plugin-sdk-wildcard-reexports.test.ts
@@ -26,6 +26,6 @@ describe("check-plugin-sdk-wildcard-reexports", () => {
           'export * from "./src/runtime-api.js";',
         ].join("\n"),
       ),
-    ).toEqual([]);
+    ).toStrictEqual([]);
   });
 });
diff --git a/test/scripts/install-sh.test.ts b/test/scripts/install-sh.test.ts
index ddf8c5d11e5..56fa3e1a7af 100644
--- a/test/scripts/install-sh.test.ts
+++ b/test/scripts/install-sh.test.ts
@@ -31,7 +31,7 @@ describe("install.sh", () => {
     const rawAptInstalls = script
       .split("\n")
       .filter((line) => /\b(?:sudo\s+)?apt-get\s+install\b/.test(line));
-    expect(rawAptInstalls).toEqual([]);
+    expect(rawAptInstalls).toStrictEqual([]);
   });
 
   it("exports noninteractive apt env during Linux startup", () => {
diff --git a/test/scripts/postinstall-bundled-plugins.test.ts b/test/scripts/postinstall-bundled-plugins.test.ts
index dcb2640165a..073dfa967d2 100644
--- a/test/scripts/postinstall-bundled-plugins.test.ts
+++ b/test/scripts/postinstall-bundled-plugins.test.ts
@@ -576,7 +576,7 @@ describe("bundled plugin postinstall", () => {
         log: { log: vi.fn(), warn },
         homedir: () => "/home/alice",
       }),
-    ).toEqual([]);
+    ).toStrictEqual([]);
 
     expect(warn).toHaveBeenCalledWith(
       expect.stringContaining(
diff --git a/test/scripts/verify-docker-attestations.test.ts b/test/scripts/verify-docker-attestations.test.ts
index a85d6a4baa3..4859b9f546a 100644
--- a/test/scripts/verify-docker-attestations.test.ts
+++ b/test/scripts/verify-docker-attestations.test.ts
@@ -69,7 +69,7 @@ describe("verify-docker-attestations", () => {
       inspectAttestation: () => createAttestation(),
     });
 
-    expect(errors).toEqual([]);
+    expect(errors).toStrictEqual([]);
   });
 
   it("accepts attestation manifests with omitted artifactType", () => {
@@ -84,7 +84,7 @@ describe("verify-docker-attestations", () => {
       },
     });
 
-    expect(errors).toEqual([]);
+    expect(errors).toStrictEqual([]);
   });
 
   it("reports unexpected attestation artifact types", () => {