diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 38f50174318..8e67a7a1c8f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -527,3 +527,18 @@ jobs:
       - name: Validate installed CLI release candidate
         if: steps.plan.outputs.cli_package == 'true'
         run: npm run release:cli:smoke -- packages/cli/release/*.tgz
+
+      # Reuse the built output in this runner. These fixtures exercise the
+      # minimum supported Node's event-loop and experimental SQLite behavior.
+      - name: Select minimum supported Node
+        if: steps.plan.outputs.runtime_host == 'true' || contains(steps.plan.outputs.standard_workspaces, 'packages/storage')
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
+        with:
+          node-version: '22.19.0'
+
+      - name: Test Node 22 Host and storage lifetimes
+        if: steps.plan.outputs.runtime_host == 'true' || contains(steps.plan.outputs.standard_workspaces, 'packages/storage')
+        run: >-
+          node --test --test-concurrency=1
+          packages/runtime-host/dist/__tests__/resumable-peer-stream.test.js
+          packages/storage/dist/__tests__/managed-dependency-environment-crash.test.js
diff --git a/packages/storage/src/__tests__/managed-dependency-environment-crash.test.ts b/packages/storage/src/__tests__/managed-dependency-environment-crash.test.ts
index 2d5138e2cb1..3b0e637346a 100644
--- a/packages/storage/src/__tests__/managed-dependency-environment-crash.test.ts
+++ b/packages/storage/src/__tests__/managed-dependency-environment-crash.test.ts
@@ -172,7 +172,11 @@ function dependencySource() {
 async function waitForChildReady(child: ChildProcess): Promise<void> {
   await new Promise<void>((resolve, reject) => {
     let output = '';
-    const timeout = setTimeout(() => finish(new Error('owner child did not become ready')), 15_000);
+    let diagnostics = '';
+    const timeout = setTimeout(
+      () => finish(new Error(`owner child did not become ready: ${diagnostics}`)),
+      15_000,
+    );
     const finish = (error?: Error) => {
       clearTimeout(timeout);
       child.stdout?.off('data', onData);
@@ -186,9 +190,14 @@ async function waitForChildReady(child: ChildProcess): Promise<void> {
       output += chunk.toString('utf8');
       if (output.includes('READY\n')) finish();
     };
-    const onErrorData = (chunk: Buffer) => finish(new Error(chunk.toString('utf8')));
+    // READY is the startup protocol; stderr may contain Node 22 SQLite warnings.
+    // Keep bounded diagnostics for exit/timeout failures without rejecting warnings.
+    const onErrorData = (chunk: Buffer) => {
+      diagnostics = (diagnostics + chunk.toString('utf8')).slice(-8_192);
+    };
     const onError = (error: Error) => finish(error);
-    const onExit = (code: number | null) => finish(new Error(`owner child exited early: ${code}`));
+    const onExit = (code: number | null) =>
+      finish(new Error(`owner child exited early: ${code}: ${diagnostics}`));
     child.stdout?.on('data', onData);
     child.stderr?.on('data', onErrorData);
     child.on('error', onError);
diff --git a/scripts/ci-workflow-policy.test.mjs b/scripts/ci-workflow-policy.test.mjs
index 52371951719..b1ad8cd4262 100644
--- a/scripts/ci-workflow-policy.test.mjs
+++ b/scripts/ci-workflow-policy.test.mjs
@@ -1173,3 +1173,33 @@ function checkoutSteps(name) {
     []
   );
 }
+
+test('the minimum Node verifies Host and storage lifecycle fixtures after building', () => {
+  const workflow = readWorkflow('ci.yml');
+  const start = workflow.indexOf('      - name: Select minimum supported Node');
+  assert.ok(start > workflow.indexOf('      - name: Build\n'));
+  const steps = workflow.slice(start);
+  const gate =
+    "if: steps.plan.outputs.runtime_host == 'true' || contains(steps.plan.outputs.standard_workspaces, 'packages/storage')";
+  assert.equal(steps.split(gate).length - 1, 2, 'setup and tests share the affected-surface gate');
+  const engines = JSON.parse(readFileSync(new URL('../package.json', import.meta.url), 'utf8'))
+    .engines.node;
+  const lowerBounds = engines.split('||').map((range) => {
+    const match = /^\s*(?:\^|>=)(\d+\.\d+\.\d+)\s*$/u.exec(range);
+    assert.ok(match, `unsupported Node engine range: ${range}`);
+    return match[1];
+  });
+  lowerBounds.sort((left, right) => {
+    const a = left.split('.').map(Number);
+    const b = right.split('.').map(Number);
+    return a[0] - b[0] || a[1] - b[1] || a[2] - b[2];
+  });
+  assert.equal(/node-version: '([^']+)'/u.exec(steps)?.[1], lowerBounds[0]);
+  assert.match(steps, /node --test --test-concurrency=1/u);
+  assert.match(steps, /packages\/runtime-host\/dist\/__tests__\/resumable-peer-stream\.test\.js/u);
+  assert.match(
+    steps,
+    /packages\/storage\/dist\/__tests__\/managed-dependency-environment-crash\.test\.js/u,
+  );
+  assert.doesNotMatch(steps, /continue-on-error/u);
+});