diff --git a/.github/workflows/execution-report-heartbeat.yml b/.github/workflows/execution-report-heartbeat.yml
index e2e759e..42d7451 100644
--- a/.github/workflows/execution-report-heartbeat.yml
+++ b/.github/workflows/execution-report-heartbeat.yml
@@ -65,6 +65,14 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v6
 
+      - name: Setup uv
+        uses: astral-sh/setup-uv@37802adc94f370d6bfd71619e3f0bf239e1f3b78
+
+      - name: Install dependencies
+        run: |
+          set -euo pipefail
+          uv sync --frozen --no-dev
+
       - name: Authenticate to Google Cloud
         id: gcp_auth_primary
         continue-on-error: true
@@ -87,14 +95,8 @@ jobs:
       - name: Set up gcloud
         uses: google-github-actions/setup-gcloud@v3
 
-      - name: Install market calendar
-        continue-on-error: true
-        run: >-
-          python -m pip install --disable-pip-version-check
-          --retries 3 --timeout 30 "pandas-market-calendars==5.4.0"
-
       - name: Check recent execution report
-        run: python scripts/execution_report_heartbeat.py
+        run: uv run --no-sync python scripts/execution_report_heartbeat.py
 
       - name: Publish read-only runtime execution evidence
         uses: QuantStrategyLab/QuantRuntimeSettings/actions/publish-runtime-execution-evidence@769616e9b0a21b9c9f40173b87d5f3e09bbdca9e
diff --git a/.github/workflows/runtime-guard.yml b/.github/workflows/runtime-guard.yml
index d9744d8..3281676 100644
--- a/.github/workflows/runtime-guard.yml
+++ b/.github/workflows/runtime-guard.yml
@@ -63,6 +63,14 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v6
 
+      - name: Setup uv
+        uses: astral-sh/setup-uv@37802adc94f370d6bfd71619e3f0bf239e1f3b78
+
+      - name: Install dependencies
+        run: |
+          set -euo pipefail
+          uv sync --frozen --no-dev
+
       - name: Authenticate to Google Cloud
         id: gcp_auth_primary
         continue-on-error: true
@@ -86,4 +94,4 @@ jobs:
         uses: google-github-actions/setup-gcloud@v3
 
       - name: Check Cloud Scheduler and Cloud Run logs
-        run: python scripts/cloud_run_runtime_guard.py
+        run: uv run --no-sync python scripts/cloud_run_runtime_guard.py
diff --git a/.github/workflows/runtime-target-lifecycle.yml b/.github/workflows/runtime-target-lifecycle.yml
index 977874c..df6e2b1 100644
--- a/.github/workflows/runtime-target-lifecycle.yml
+++ b/.github/workflows/runtime-target-lifecycle.yml
@@ -60,6 +60,14 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v6
 
+      - name: Setup uv
+        uses: astral-sh/setup-uv@37802adc94f370d6bfd71619e3f0bf239e1f3b78
+
+      - name: Install dependencies
+        run: |
+          set -euo pipefail
+          uv sync --frozen --no-dev
+
       - name: Authenticate to Google Cloud
         uses: google-github-actions/auth@v3
         with:
@@ -119,25 +127,19 @@ jobs:
         run: |
           set -uo pipefail
           set +e
-          python scripts/cloud_run_runtime_guard.py > runtime-guard.log 2>&1
+          uv run --no-sync python scripts/cloud_run_runtime_guard.py > runtime-guard.log 2>&1
           exit_code=$?
           set -e
           cat runtime-guard.log
           if [ "$exit_code" -eq 0 ]; then
             status=pass
-          elif grep -Eqi 'log query failed|internal error|network|timed out|unable to list' runtime-guard.log; then
+          elif grep -Eqi 'log query failed|internal error|network|timed out|unable to list|Traceback|ImportError|ModuleNotFoundError' runtime-guard.log; then
             status=unavailable
           else
             status=attention
           fi
           echo "status=$status" >> "$GITHUB_OUTPUT"
 
-      - name: Install market calendar for enabled heartbeat
-        if: ${{ steps.target_state.outputs.configured_state == 'enabled' }}
-        run: >-
-          python -m pip install --disable-pip-version-check
-          --retries 3 --timeout 30 "pandas-market-calendars==5.4.0"
-
       - name: Check enabled execution heartbeat without notification side effects
         id: execution_heartbeat
         env:
@@ -155,7 +157,7 @@ jobs:
 
           export RUNTIME_TARGET_JSON="$(cat runtime-target.json)"
           set +e
-          python scripts/execution_report_heartbeat.py > execution-heartbeat.log 2>&1
+          uv run --no-sync python scripts/execution_report_heartbeat.py > execution-heartbeat.log 2>&1
           exit_code=$?
           set -e
           cat execution-heartbeat.log
@@ -163,7 +165,7 @@ jobs:
             status=not_due
           elif [ "$exit_code" -eq 0 ]; then
             status=pass
-          elif grep -Eqi 'gcloud|storage|network|timed out|internal error|unable to list' execution-heartbeat.log; then
+          elif grep -Eqi 'gcloud|storage|network|timed out|internal error|unable to list|Traceback|ImportError|ModuleNotFoundError' execution-heartbeat.log; then
             status=unavailable
           else
             status=attention
diff --git a/tests/test_uv_dependency_workflow.py b/tests/test_uv_dependency_workflow.py
index 007304d..3a8391c 100644
--- a/tests/test_uv_dependency_workflow.py
+++ b/tests/test_uv_dependency_workflow.py
@@ -12,10 +12,17 @@ def test_pyproject_declares_runtime_and_test_dependencies() -> None:
     assert "test = [" in pyproject
 
 
-def test_ci_docker_and_env_sync_use_uv_lock() -> None:
+def test_ci_docker_and_runtime_monitoring_use_uv_lock() -> None:
     ci = Path(".github/workflows/ci.yml").read_text(encoding="utf-8")
     dockerfile = Path("Dockerfile").read_text(encoding="utf-8")
     env_sync = Path(".github/workflows/sync-cloud-run-env.yml").read_text(encoding="utf-8")
+    runtime_guard = Path(".github/workflows/runtime-guard.yml").read_text(encoding="utf-8")
+    runtime_target_lifecycle = Path(".github/workflows/runtime-target-lifecycle.yml").read_text(
+        encoding="utf-8"
+    )
+    execution_report_heartbeat = Path(".github/workflows/execution-report-heartbeat.yml").read_text(
+        encoding="utf-8"
+    )
     lockfile = Path("uv.lock").read_text(encoding="utf-8")
 
     assert lockfile.startswith("version = ")
@@ -24,6 +31,24 @@ def test_ci_docker_and_env_sync_use_uv_lock() -> None:
     assert "uv run --no-sync python external/QuantPlatformKit/scripts/check_qpk_pin_consistency.py" in ci
     assert "uv sync --frozen --no-dev" in env_sync
     assert "uv run --no-sync python scripts/build_cloud_run_env_sync_plan.py --json" in env_sync
+    setup_uv = "uses: astral-sh/setup-uv@37802adc94f370d6bfd71619e3f0bf239e1f3b78"
+    for workflow in (runtime_guard, runtime_target_lifecycle, execution_report_heartbeat):
+        assert setup_uv in workflow
+        assert workflow.count(setup_uv) == 1
+        assert workflow.index(setup_uv) < workflow.index("google-github-actions/auth@v3")
+        assert "actions/setup-python" not in workflow
+        assert "python -m pip install" not in workflow
+        assert workflow.count("uv sync --frozen --no-dev") == 1
+    assert "uv run --no-sync python scripts/cloud_run_runtime_guard.py" in runtime_guard
+    assert "uv run --no-sync python scripts/cloud_run_runtime_guard.py" in runtime_target_lifecycle
+    assert "uv run --no-sync python scripts/execution_report_heartbeat.py" in runtime_target_lifecycle
+    assert "uv run --no-sync python scripts/execution_report_heartbeat.py" in execution_report_heartbeat
+    assert "run: python scripts/cloud_run_runtime_guard.py" not in runtime_guard
+    assert "          python scripts/cloud_run_runtime_guard.py" not in runtime_target_lifecycle
+    assert 'name = "pandas-market-calendars"' in lockfile
+    assert 'pandas-market-calendars==5.4.0' not in runtime_target_lifecycle
+    assert 'pandas-market-calendars==5.4.0' not in execution_report_heartbeat
+    assert "Traceback|ImportError|ModuleNotFoundError" in runtime_target_lifecycle
     assert "IBKR_RECONCILIATION_RECOVERY_STATE_LEDGER_URI" in env_sync
     assert "Fetch opt-in immutable recovery state ledger" in env_sync
     assert "gcloud storage cp --quiet" in env_sync