diff --git a/CHANGELOG.md b/CHANGELOG.md
index 241dee20380..71871bddd7c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,7 +13,7 @@ Docs: https://docs.openclaw.ai
 
 ### Fixes
 
-- Codex/app-server: resolve the managed `@openai/codex` package bin when package installs do not provide a nearby `.bin/codex` shim, avoiding false missing-binary startup failures.
+- Codex/app-server: resolve managed binaries from bundled `dist` chunks and from the `@openai/codex` package bin when installs do not provide a nearby `.bin/codex` shim, avoiding false missing-binary startup failures.
 - Plugins/source checkout: discover source-only plugins such as Codex from the `extensions/*` workspace while using npm package excludes as the packaged-core boundary, removing the stale core-bundle metadata path.
 - Plugins/ClawHub: install ClawPack artifacts from the explicit npm-pack `.tgz` resolver path instead of the legacy ZIP-shaped placeholder route. Thanks @vincentkoc.
 - Control UI: allow deployments to configure grouped chat message max-width with a validated `gateway.controlUi.chatMessageMaxWidth` setting instead of patching bundled CSS after upgrades. Fixes #67935. Thanks @xiew4589-lang.
diff --git a/extensions/codex/src/app-server/managed-binary.test.ts b/extensions/codex/src/app-server/managed-binary.test.ts
index 78bcd5ec1ec..83aba0c5c9c 100644
--- a/extensions/codex/src/app-server/managed-binary.test.ts
+++ b/extensions/codex/src/app-server/managed-binary.test.ts
@@ -4,6 +4,7 @@ import path from "node:path";
 import { describe, expect, it, vi } from "vitest";
 import type { CodexAppServerStartOptions } from "./config.js";
 import {
+  __testing,
   resolveManagedCodexAppServerPaths,
   resolveManagedCodexAppServerStartOptions,
 } from "./managed-binary.js";
@@ -66,6 +67,16 @@ describe("managed Codex app-server binary", () => {
     );
   });
 
+  it("uses the package root when the resolver is bundled into a dist chunk", () => {
+    expect(__testing.resolveDefaultCodexPluginRoot("/repo/openclaw/dist")).toBe("/repo/openclaw");
+    expect(__testing.resolveDefaultCodexPluginRoot("/repo/openclaw/dist-runtime")).toBe(
+      "/repo/openclaw",
+    );
+    expect(
+      __testing.resolveDefaultCodexPluginRoot("/repo/openclaw/extensions/codex/src/app-server"),
+    ).toBe("/repo/openclaw/extensions/codex");
+  });
+
   it("finds Codex in the package install root used by packaged plugins", async () => {
     const installRoot = path.join("/tmp", "openclaw-plugin-package", "codex");
     const pluginRoot = path.join(installRoot, "dist", "extensions", "codex");
diff --git a/extensions/codex/src/app-server/managed-binary.ts b/extensions/codex/src/app-server/managed-binary.ts
index 0228baefa1f..bcdc1479693 100644
--- a/extensions/codex/src/app-server/managed-binary.ts
+++ b/extensions/codex/src/app-server/managed-binary.ts
@@ -6,7 +6,8 @@ import { fileURLToPath } from "node:url";
 import type { CodexAppServerStartOptions } from "./config.js";
 import { MANAGED_CODEX_APP_SERVER_PACKAGE } from "./version.js";
 
-const CODEX_PLUGIN_ROOT = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..", "..");
+const CODEX_APP_SERVER_MODULE_DIR = path.dirname(fileURLToPath(import.meta.url));
+const CODEX_PLUGIN_ROOT = resolveDefaultCodexPluginRoot(CODEX_APP_SERVER_MODULE_DIR);
 
 type ManagedCodexAppServerPaths = {
   commandPath: string;
@@ -76,6 +77,14 @@ function resolveManagedCodexAppServerCommandCandidates(
   ];
 }
 
+function resolveDefaultCodexPluginRoot(moduleDir: string): string {
+  const moduleBaseName = path.basename(moduleDir);
+  if (moduleBaseName === "dist" || moduleBaseName === "dist-runtime") {
+    return path.dirname(moduleDir);
+  }
+  return path.resolve(moduleDir, "..", "..");
+}
+
 function resolveManagedCodexAppServerCandidateRoots(
   pluginRoot: string,
   platform: NodeJS.Platform,
@@ -135,6 +144,10 @@ function isRecord(value: unknown): value is Record<string, unknown> {
   return typeof value === "object" && value !== null;
 }
 
+export const __testing = {
+  resolveDefaultCodexPluginRoot,
+};
+
 function isDistExtensionRoot(pluginRoot: string, platform: NodeJS.Platform): boolean {
   const pathApi = pathForPlatform(platform);
   const extensionsDir = pathApi.dirname(pluginRoot);