diff --git a/packages/server/src/server/plugins/compiler.test.ts b/packages/server/src/server/plugins/compiler.test.ts
index fc86f85db3..0ddf97b6f3 100644
--- a/packages/server/src/server/plugins/compiler.test.ts
+++ b/packages/server/src/server/plugins/compiler.test.ts
@@ -386,6 +386,46 @@ export type Value = string;`,
     },
   );
 
+  it.each([
+    { name: "import 'node' with Node types installed", source: 'import "node";', nodeTypes: true },
+    { name: "import 'node' without Node types", source: 'import "node";', nodeTypes: false },
+    {
+      name: "a node: builtin unknown to the host",
+      source: 'import type { Future } from "node:paseo-future-builtin";',
+      nodeTypes: false,
+    },
+  ])("treats Node declarations as host types in server dependencies: $name", async (fixture) => {
+    const entries = await createSplitPlugin();
+    const dependency = path.join(entries.directory, "node_modules/image-codec");
+    await mkdir(dependency, { recursive: true });
+    await writeFile(
+      path.join(dependency, "package.json"),
+      JSON.stringify({ name: "image-codec", main: "index.js", types: "index.d.ts" }),
+    );
+    await writeFile(path.join(dependency, "index.js"), 'module.exports = "decoded";');
+    await writeFile(
+      path.join(dependency, "index.d.ts"),
+      `${fixture.source}\ndeclare const value: string;\nexport = value;`,
+    );
+    if (fixture.nodeTypes) {
+      const nodeTypes = path.join(entries.directory, "node_modules/@types/node");
+      await mkdir(nodeTypes, { recursive: true });
+      await writeFile(
+        path.join(nodeTypes, "package.json"),
+        JSON.stringify({ name: "@types/node", types: "index.d.ts" }),
+      );
+      await writeFile(
+        path.join(nodeTypes, "index.d.ts"),
+        'declare module "node:paseo-future-builtin" { export * from "node:stream"; }\nimport type { Future } from "node:paseo-future-builtin";',
+      );
+    }
+    await writeFile(entries.server, 'import value from "image-codec"; export default value;');
+
+    await expect(compilePlugin({ client: null, server: entries.server })).resolves.toMatchObject({
+      serverBundle: expect.stringContaining("decoded"),
+    });
+  });
+
   it("checks the physical owner of type-only symlinks", async () => {
     const entries = await createSplitPlugin();
     await writeFile(
diff --git a/packages/server/src/server/plugins/compiler.ts b/packages/server/src/server/plugins/compiler.ts
index b48449bb50..5cdce3ad6c 100644
--- a/packages/server/src/server/plugins/compiler.ts
+++ b/packages/server/src/server/plugins/compiler.ts
@@ -92,6 +92,18 @@ function containsPath(directory: string, filePath: string): boolean {
   return relative === "" || (!relative.startsWith("..") && !path.isAbsolute(relative));
 }
 
+// @types/node can declare builtins newer than the host Node (node:stream/iter on Node 24).
+function isNodeSpecifier(specifier: string): boolean {
+  return isBuiltin(specifier) || specifier.startsWith("node:") || specifier === "@types/node";
+}
+
+function declaredPackage(specifier: string, kind: PluginImportKind, typeOnly: boolean): string {
+  if (kind === "type-reference") return `@types/${specifier.replace(/^@/, "").replace("/", "__")}`;
+  // Declarations load Node's ambient types with `import "node"`.
+  if (typeOnly && specifier === "node") return "@types/node";
+  return specifier;
+}
+
 function dependencyName(specifier: string): string {
   const segments = specifier.split("/");
   return specifier.startsWith("@") ? segments.slice(0, 2).join("/") : segments[0];
@@ -236,10 +248,7 @@ function createRuntimeBoundaryPlugin(target: PluginBuildTarget, pluginDirectory:
         if (checked.has(key) || !/\.[cm]?[jt]sx?$/.test(file)) return null;
         checked.add(key);
         for (const { specifier, kind, typeOnly } of imports.read(file)) {
-          const packageSpecifier =
-            kind === "type-reference"
-              ? `@types/${specifier.replace(/^@/, "").replace("/", "__")}`
-              : specifier;
+          const packageSpecifier = declaredPackage(specifier, kind, typeOnly);
           const error =
             runtimeSpecifierError(specifier, owner, file) ??
             runtimeSpecifierError(packageSpecifier, owner, file) ??
@@ -253,7 +262,7 @@ function createRuntimeBoundaryPlugin(target: PluginBuildTarget, pluginDirectory:
           if (
             (PLUGIN_SDK_SPECIFIERS as readonly string[]).includes(specifier) ||
             /^(zod|react|react-native|@tanstack\/react-query)(\/|$)/.test(specifier) ||
-            isBuiltin(specifier) ||
+            isNodeSpecifier(specifier) ||
             packageSpecifier === "@types/node"
           )
             continue;
@@ -328,8 +337,7 @@ function runtimeSpecifierError(
     !(PLUGIN_SDK_SPECIFIERS as readonly string[]).includes(specifier)
   )
     kind = "Unknown SDK";
-  else if (target !== "server" && (isBuiltin(specifier) || specifier === "@types/node"))
-    kind = "Node";
+  else if (target !== "server" && isNodeSpecifier(specifier)) kind = "Node";
   else if (target !== "server" && isPluginServerOnlySdkSpecifier(specifier)) kind = "server-only";
   else if (
     target !== "client" &&