diff --git a/bin/oh-my-opencode.js b/bin/oh-my-opencode.js
index 1a151a8c1..a064bf19f 100755
--- a/bin/oh-my-opencode.js
+++ b/bin/oh-my-opencode.js
@@ -10,6 +10,7 @@ import { fileURLToPath } from "node:url";
 import {
   getPlatformPackageCandidates,
   getBinaryPath,
+  getPackageBareName,
   resolvePlatformPackageBaseName,
 } from "./platform.js";
 
@@ -108,7 +109,7 @@ function getInvocationName() {
 }
 
 function shouldRunBundledLazyCodexCli(packageName, invocationName) {
-  return packageName === "lazycodex" && invocationName === "lazycodex";
+  return getPackageBareName(packageName) === "lazycodex" && invocationName === "lazycodex";
 }
 
 function runBundledLazyCodexCli(invocationName) {
diff --git a/bin/oh-my-opencode.test.ts b/bin/oh-my-opencode.test.ts
index 5350292b9..c3aecf16b 100644
--- a/bin/oh-my-opencode.test.ts
+++ b/bin/oh-my-opencode.test.ts
@@ -36,9 +36,34 @@ describe("lazycodex bin wrapper", () => {
       "--no-tui",
     ]);
   });
+
+  test("runs the bundled Bun CLI when published under an npm scope", async () => {
+    // #given
+    const fixture = await createLazyCodexFixture({ packageName: "@code-yeongyu/lazycodex" });
+    const nodePath = Bun.which("node") ?? "node";
+
+    // #when
+    const result = spawnSync(nodePath, [fixture.lazycodexBin, "install", "--no-tui"], {
+      encoding: "utf8",
+      env: {
+        ...process.env,
+        CAPTURE_DIR: fixture.captureDir,
+        PATH: `${fixture.fakeBinDir}:${process.env.PATH ?? ""}`,
+      },
+    });
+
+    // #then
+    expect(result.status).toBe(23);
+    expect((await readFile(join(fixture.captureDir, "env"), "utf8")).trim()).toBe("lazycodex");
+    expect((await readFile(join(fixture.captureDir, "args"), "utf8")).trim().split("\n")).toEqual([
+      await realpath(fixture.bundledCli),
+      "install",
+      "--no-tui",
+    ]);
+  });
 });
 
-async function createLazyCodexFixture() {
+async function createLazyCodexFixture(options: { packageName?: string } = {}) {
   const root = await mkdtemp(join(tmpdir(), "lazycodex-bin-wrapper-"));
   testRoots.push(root);
 
@@ -53,7 +78,7 @@ async function createLazyCodexFixture() {
 
   await cp(fileURLToPath(new URL("./oh-my-opencode.js", import.meta.url)), join(binDir, "lazycodex"));
   await cp(fileURLToPath(new URL("./platform.js", import.meta.url)), join(binDir, "platform.js"));
-  await writeFile(join(root, "package.json"), JSON.stringify({ name: "lazycodex", type: "module" }));
+  await writeFile(join(root, "package.json"), JSON.stringify({ name: options.packageName ?? "lazycodex", type: "module" }));
   await writeFile(distCli, "#!/usr/bin/env bun\n");
 
   const fakeBun = join(fakeBinDir, "bun");
diff --git a/bin/platform.d.ts b/bin/platform.d.ts
index f9375b7c1..616c2911c 100644
--- a/bin/platform.d.ts
+++ b/bin/platform.d.ts
@@ -15,4 +15,6 @@ export declare function getPlatformPackageCandidates(options: {
 
 export declare function getBinaryPath(pkg: string, platform: string): string;
 
+export declare function getPackageBareName(packageName: string): string;
+
 export declare function resolvePlatformPackageBaseName(wrapperPackageName: string): string;
diff --git a/bin/platform.js b/bin/platform.js
index 0ed616615..7028313aa 100644
--- a/bin/platform.js
+++ b/bin/platform.js
@@ -5,6 +5,10 @@ const PLATFORM_PACKAGE_BASE_BY_WRAPPER_NAME = {
   lazycodex: "oh-my-opencode",
 };
 
+export function getPackageBareName(packageName) {
+  return packageName.split("/").pop() || packageName;
+}
+
 /**
  * Resolve platform package base from a wrapper package name.
  * Wrapper aliases can intentionally reuse an existing platform package family.
@@ -12,7 +16,8 @@ const PLATFORM_PACKAGE_BASE_BY_WRAPPER_NAME = {
  * @returns {string}
  */
 export function resolvePlatformPackageBaseName(wrapperPackageName) {
-  return PLATFORM_PACKAGE_BASE_BY_WRAPPER_NAME[wrapperPackageName] ?? wrapperPackageName;
+  const bareName = getPackageBareName(wrapperPackageName);
+  return PLATFORM_PACKAGE_BASE_BY_WRAPPER_NAME[bareName] ?? wrapperPackageName;
 }
 
 /**
diff --git a/bin/platform.test.ts b/bin/platform.test.ts
index 49eba4d5d..203880027 100644
--- a/bin/platform.test.ts
+++ b/bin/platform.test.ts
@@ -2,11 +2,25 @@
 import { describe, expect, test } from "bun:test";
 import {
   getBinaryPath,
+  getPackageBareName,
   getPlatformPackage,
   getPlatformPackageCandidates,
   resolvePlatformPackageBaseName,
 } from "./platform.js";
 
+describe("getPackageBareName", () => {
+  test("strips npm scope from package name", () => {
+    // #given
+    const packageName = "@code-yeongyu/lazycodex";
+
+    // #when
+    const bareName = getPackageBareName(packageName);
+
+    // #then
+    expect(bareName).toBe("lazycodex");
+  });
+});
+
 describe("resolvePlatformPackageBaseName", () => {
   test("maps lazycodex wrapper to oh-my-opencode platform package family", () => {
     // #given
@@ -19,6 +33,17 @@ describe("resolvePlatformPackageBaseName", () => {
     expect(resolvedPlatformBase).toBe("oh-my-opencode");
   });
 
+  test("maps scoped lazycodex wrapper to oh-my-opencode platform package family", () => {
+    // #given
+    const wrapperPackageName = "@code-yeongyu/lazycodex";
+
+    // #when
+    const resolvedPlatformBase = resolvePlatformPackageBaseName(wrapperPackageName);
+
+    // #then
+    expect(resolvedPlatformBase).toBe("oh-my-opencode");
+  });
+
   test("keeps oh-my-opencode wrapper mapped to oh-my-opencode platform package family", () => {
     // #given
     const wrapperPackageName = "oh-my-opencode";