From c8c26c49bd8a4073ed1b0d26ddaaac1cbf2a2d73 Mon Sep 17 00:00:00 2001
From: onmax <maximogarciamtnez@gmail.com>
Date: Sat, 3 Oct 2026 02:06:58 +0200
Subject: [PATCH] fix(provider-runtime): import bundled Node builtins through
 ESM

---
 .../provider-runtime/src/package-artifact.test.ts     | 11 +++++++++--
 packages/provider-runtime/vite.config.ts              |  4 +++-
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/packages/provider-runtime/src/package-artifact.test.ts b/packages/provider-runtime/src/package-artifact.test.ts
index e04481e10bdb9..4babb836443e8 100644
--- a/packages/provider-runtime/src/package-artifact.test.ts
+++ b/packages/provider-runtime/src/package-artifact.test.ts
@@ -48,7 +48,7 @@ function publishedManifest(
 
 describe("provider-runtime package artifact", () => {
   it(
-    "installs and starts a Codex-only consumer without the Claude SDK",
+    "starts a Codex-only consumer with ESM Node builtins and no Claude SDK",
     { timeout: 120_000 },
     async () => {
       const temporaryDirectory = await NodeFSP.mkdtemp(
@@ -139,7 +139,14 @@ describe("provider-runtime package artifact", () => {
         await NodeFSP.writeFile(
           NodePath.join(consumerDirectory, "verify.mjs"),
           [
-            'import { createProviderRuntime } from "@t3tools/provider-runtime";',
+            'import { registerHooks } from "node:module";',
+            "registerHooks({ resolve(specifier, context, nextResolve) {",
+            '  if (context.conditions.includes("require") && /^(node:)?(process|buffer)$/.test(specifier)) {',
+            '    throw new Error(`No such module "${specifier}"`);',
+            "  }",
+            "  return nextResolve(specifier, context);",
+            "} });",
+            'const { createProviderRuntime } = await import("@t3tools/provider-runtime");',
             'const runtime = await createProviderRuntime({ provider: "codex" });',
             "await runtime.close();",
           ].join("\n"),
diff --git a/packages/provider-runtime/vite.config.ts b/packages/provider-runtime/vite.config.ts
index 386338b9bb6a9..1fb30ebae5ab6 100644
--- a/packages/provider-runtime/vite.config.ts
+++ b/packages/provider-runtime/vite.config.ts
@@ -1,9 +1,11 @@
-import { defineConfig } from "vite-plus";
+import { defineConfig, esmExternalRequirePlugin } from "vite-plus";
 
 export default defineConfig({
   pack: {
     entry: ["src/index.ts"],
     outDir: "dist",
+    // Workers accept these Node builtins through ESM, but not createRequire.
+    plugins: [esmExternalRequirePlugin({ external: [/^(node:)?(?:process|buffer)$/] })],
     deps: {
       // Publish the Node adapters built against our locked Effect version. Their
       // transitive prerelease ranges can otherwise install incompatible adapters.