diff --git a/docs/release-control/v6/internal/HIGH_RISK_RELEASE_VERIFICATION_MATRIX.md b/docs/release-control/v6/internal/HIGH_RISK_RELEASE_VERIFICATION_MATRIX.md
index 1050ad3a67..08050c7308 100644
--- a/docs/release-control/v6/internal/HIGH_RISK_RELEASE_VERIFICATION_MATRIX.md
+++ b/docs/release-control/v6/internal/HIGH_RISK_RELEASE_VERIFICATION_MATRIX.md
@@ -360,7 +360,7 @@ Companion drill:
   `go test ./internal/relay -run 'TestClient_E2E_MultiMobileClientRelay|TestClient_AbruptDisconnectCancelsInFlightHandlers|TestClient_AbruptDisconnectMultipleChannelCleanup|TestClient_DrainDuringInFlightData|TestClient_DrainWithMultipleInFlightChannels|TestClientRegister_SessionResumeRejectionClearsCachedSession|TestRunLoop_SessionResumeRejectionFallsBackToFreshRegister' -count=1`
   `go test ./internal/api -run 'TestRelayEndpointsRequireLicenseFeature|TestRelayOnboardingEndpointsRequireLicenseFeature|TestRelayLicenseGatingResponseFormat|TestOnboardingQRPayloadStructure|TestOnboardingValidateSuccessAndFailure|TestOnboardingDeepLinkFormat' -count=1`
   `cd frontend-modern && npx vitest run src/components/Dashboard/__tests__/RelayOnboardingCard.test.tsx src/components/Settings/__tests__/RelaySettingsPanel.runtime.test.tsx src/components/Settings/__tests__/settingsReadOnlyPanels.test.tsx`
-  `cd /Volumes/Development/pulse/repos/pulse-mobile && npm test -- --runTestsByPath src/relay/__tests__/client.test.ts src/relay/__tests__/client-hardening.test.ts src/relay/__tests__/protocol-contract.test.ts`
+  `cd /Volumes/Development/pulse/repos/pulse-mobile && npx jest --runInBand --detectOpenHandles --runTestsByPath src/relay/__tests__/client.test.ts src/relay/__tests__/client-hardening.test.ts src/relay/__tests__/protocol-contract.test.ts`
 - Manual scenario:
   1. Register a fresh relay client.
   2. Force reconnect after a normal disconnect.
@@ -442,10 +442,10 @@ Companion drill:
   `pulse-mobile/src/hooks/useRelay.ts`
   `pulse-mobile/src/api/client.ts`
 - Automated proof:
-  `cd /Volumes/Development/pulse/repos/pulse-mobile && npm test -- --runTestsByPath src/__tests__/mobileRelayAuthApprovals.rehearsal.test.ts src/utils/__tests__/secureStorage.test.ts src/hooks/__tests__/useRelayLifecycle.test.ts src/hooks/__tests__/approvalActionPolicy.test.ts src/stores/__tests__/instanceStore.test.ts src/stores/__tests__/authStore.test.ts src/stores/__tests__/approvalStore.test.ts`
-  `cd /Volumes/Development/pulse/repos/pulse-mobile && npm test -- --runTestsByPath src/relay/__tests__/client.test.ts src/relay/__tests__/client-hardening.test.ts src/relay/__tests__/protocol-contract.test.ts`
-  `cd /Volumes/Development/pulse/repos/pulse-mobile && npm test -- --runTestsByPath src/api/__tests__/client.test.ts`
-  `cd /Volumes/Development/pulse/repos/pulse-mobile && npm test -- --runTestsByPath src/hooks/__tests__/useRelay.test.ts src/hooks/__tests__/relayPushRefresh.test.ts src/notifications/__tests__/notificationRouting.test.ts src/stores/__tests__/mobileAccessState.test.ts`
+  `cd /Volumes/Development/pulse/repos/pulse-mobile && npx jest --runInBand --detectOpenHandles --runTestsByPath src/__tests__/mobileRelayAuthApprovals.rehearsal.test.ts src/utils/__tests__/secureStorage.test.ts src/hooks/__tests__/useRelayLifecycle.test.ts src/hooks/__tests__/approvalActionPolicy.test.ts src/stores/__tests__/instanceStore.test.ts src/stores/__tests__/authStore.test.ts src/stores/__tests__/approvalStore.test.ts`
+  `cd /Volumes/Development/pulse/repos/pulse-mobile && npx jest --runInBand --detectOpenHandles --runTestsByPath src/relay/__tests__/client.test.ts src/relay/__tests__/client-hardening.test.ts src/relay/__tests__/protocol-contract.test.ts`
+  `cd /Volumes/Development/pulse/repos/pulse-mobile && npx jest --runInBand --detectOpenHandles --runTestsByPath src/api/__tests__/client.test.ts`
+  `cd /Volumes/Development/pulse/repos/pulse-mobile && npx jest --runInBand --detectOpenHandles --runTestsByPath src/hooks/__tests__/useRelay.test.ts src/hooks/__tests__/relayPushRefresh.test.ts src/notifications/__tests__/notificationRouting.test.ts src/stores/__tests__/mobileAccessState.test.ts`
   `cd /Volumes/Development/pulse/repos/pulse-enterprise && go test ./internal/aiautofix -run 'TestHandleListApprovals|TestHandleApproveAndExecuteInvestigationFix|TestHandleApprove' -count=1`
 - Manual scenario:
   1. Pair the mobile app to a real instance through the relay onboarding path.
diff --git a/docs/release-control/v6/internal/PRE_RELEASE_CHECKLIST.md b/docs/release-control/v6/internal/PRE_RELEASE_CHECKLIST.md
index 1a6ed9f9eb..848f35e98b 100644
--- a/docs/release-control/v6/internal/PRE_RELEASE_CHECKLIST.md
+++ b/docs/release-control/v6/internal/PRE_RELEASE_CHECKLIST.md
@@ -238,7 +238,7 @@ If mobile is in scope, also run:
 cd /Volumes/Development/pulse/repos/pulse-mobile
 git status --porcelain
 npm test -- --runTestsByPath src/utils/__tests__/secureStorage.test.ts src/stores/__tests__/instanceStore.test.ts src/stores/__tests__/authStore.test.ts
-npm test -- --runTestsByPath src/relay/__tests__/client.test.ts src/relay/__tests__/client-hardening.test.ts
+npx jest --runInBand --runTestsByPath src/relay/__tests__/client.test.ts src/relay/__tests__/client-hardening.test.ts
 npm test -- --runTestsByPath src/stores/__tests__/approvalStore.test.ts
 ```
 
diff --git a/scripts/release_control/internal/mobile_relay_auth_approvals_proof.py b/scripts/release_control/internal/mobile_relay_auth_approvals_proof.py
index af55e772b3..dc6f22887d 100644
--- a/scripts/release_control/internal/mobile_relay_auth_approvals_proof.py
+++ b/scripts/release_control/internal/mobile_relay_auth_approvals_proof.py
@@ -69,9 +69,10 @@ def build_command_specs(args: argparse.Namespace) -> list[CommandSpec]:
             name="mobile-api-client",
             cwd=str(pulse_mobile_dir),
             command=[
-                "npm",
-                "test",
-                "--",
+                "npx",
+                "jest",
+                "--runInBand",
+                "--detectOpenHandles",
                 "--runTestsByPath",
                 "src/api/__tests__/client.test.ts",
             ],
@@ -80,9 +81,10 @@ def build_command_specs(args: argparse.Namespace) -> list[CommandSpec]:
             name="mobile-relay-runtime",
             cwd=str(pulse_mobile_dir),
             command=[
-                "npm",
-                "test",
-                "--",
+                "npx",
+                "jest",
+                "--runInBand",
+                "--detectOpenHandles",
                 "--runTestsByPath",
                 "src/hooks/__tests__/useRelay.test.ts",
                 "src/hooks/__tests__/relayPushRefresh.test.ts",
@@ -94,9 +96,10 @@ def build_command_specs(args: argparse.Namespace) -> list[CommandSpec]:
             name="mobile-secure-persistence-and-approvals",
             cwd=str(pulse_mobile_dir),
             command=[
-                "npm",
-                "test",
-                "--",
+                "npx",
+                "jest",
+                "--runInBand",
+                "--detectOpenHandles",
                 "--runTestsByPath",
                 "src/__tests__/mobileRelayAuthApprovals.rehearsal.test.ts",
                 "src/utils/__tests__/secureStorage.test.ts",
@@ -111,9 +114,10 @@ def build_command_specs(args: argparse.Namespace) -> list[CommandSpec]:
             name="mobile-wire-protocol",
             cwd=str(pulse_mobile_dir),
             command=[
-                "npm",
-                "test",
-                "--",
+                "npx",
+                "jest",
+                "--runInBand",
+                "--detectOpenHandles",
                 "--runTestsByPath",
                 "src/relay/__tests__/client.test.ts",
                 "src/relay/__tests__/client-hardening.test.ts",
diff --git a/scripts/release_control/internal/mobile_relay_auth_approvals_proof_test.py b/scripts/release_control/internal/mobile_relay_auth_approvals_proof_test.py
index 62c1670510..2fc1101b8f 100644
--- a/scripts/release_control/internal/mobile_relay_auth_approvals_proof_test.py
+++ b/scripts/release_control/internal/mobile_relay_auth_approvals_proof_test.py
@@ -36,6 +36,10 @@ class MobileRelayAuthApprovalsProofTest(unittest.TestCase):
         )
         self.assertTrue(any(Path(spec.cwd) == proof.default_pulse_enterprise_dir() for spec in specs))
         self.assertTrue(any(Path(spec.cwd) == proof.default_pulse_mobile_dir() for spec in specs))
+        mobile_specs = [spec for spec in specs if Path(spec.cwd) == proof.default_pulse_mobile_dir()]
+        self.assertTrue(
+            all(spec.command[:4] == ["npx", "jest", "--runInBand", "--detectOpenHandles"] for spec in mobile_specs)
+        )
 
 
 if __name__ == "__main__":
diff --git a/scripts/release_control/internal/relay_registration_reconnect_drain_proof.py b/scripts/release_control/internal/relay_registration_reconnect_drain_proof.py
index cee627c41e..79440d6547 100644
--- a/scripts/release_control/internal/relay_registration_reconnect_drain_proof.py
+++ b/scripts/release_control/internal/relay_registration_reconnect_drain_proof.py
@@ -109,9 +109,10 @@ def build_command_specs(args: argparse.Namespace) -> list[CommandSpec]:
             name="relay-mobile-client",
             cwd=str(pulse_mobile_dir),
             command=[
-                "npm",
-                "test",
-                "--",
+                "npx",
+                "jest",
+                "--runInBand",
+                "--detectOpenHandles",
                 "--runTestsByPath",
                 "src/relay/__tests__/client.test.ts",
                 "src/relay/__tests__/client-hardening.test.ts",
diff --git a/scripts/release_control/internal/relay_registration_reconnect_drain_proof_test.py b/scripts/release_control/internal/relay_registration_reconnect_drain_proof_test.py
index 26806b52a3..f4539d4e26 100644
--- a/scripts/release_control/internal/relay_registration_reconnect_drain_proof_test.py
+++ b/scripts/release_control/internal/relay_registration_reconnect_drain_proof_test.py
@@ -31,6 +31,11 @@ class RelayRegistrationReconnectDrainProofTest(unittest.TestCase):
         self.assertTrue(any(Path(spec.cwd) == proof.default_pulse_dir() / "frontend-modern" for spec in specs))
         self.assertTrue(any(Path(spec.cwd) == proof.default_pulse_mobile_dir() for spec in specs))
         self.assertTrue(any(Path(spec.cwd) == proof.default_pulse_dir() for spec in specs))
+        mobile_spec = next(spec for spec in specs if spec.name == "relay-mobile-client")
+        self.assertEqual(
+            mobile_spec.command[:4],
+            ["npx", "jest", "--runInBand", "--detectOpenHandles"],
+        )
 
 
 if __name__ == "__main__":