diff --git a/README.md b/README.md
index dca6e31..59a89fc 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ QuantPilot is not a production live-trading system. It is a platform skeleton an
 
 | Category | Technology |
 |----------|------------|
-| Language | TypeScript 5 (100% first-party source, no new JavaScript source files) |
+| Language | TypeScript 5 (TypeScript-first first-party source; no new JavaScript source files in `apps`, `packages`, or `scripts`) |
 | Frontend | React 18 + react-router-dom 6 |
 | Build | Vite 5 |
 | Styling | vanilla-extract |
diff --git a/README.zh-CN.md b/README.zh-CN.md
index 803f3c7..65a60bf 100644
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@@ -10,7 +10,7 @@ QuantPilot 不是一个可直接用于实盘的生产交易系统。它当前定
 
 | 类别 | 技术 |
 |------|------|
-| 语言 | TypeScript 5（第一方源码 100%，禁止新增 JavaScript 源文件） |
+| 语言 | TypeScript 5（第一方源码 TypeScript-first；`apps`、`packages`、`scripts` 中禁止新增 JavaScript 源文件） |
 | 前端 | React 18 + react-router-dom 6 |
 | 构建 | Vite 5 |
 | 样式 | vanilla-extract |
diff --git a/scripts/check-no-js-source.ts b/scripts/check-no-js-source.ts
index 82ac05c..7a9b569 100644
--- a/scripts/check-no-js-source.ts
+++ b/scripts/check-no-js-source.ts
@@ -1,9 +1,10 @@
+import { execFileSync } from 'node:child_process';
 import { readdirSync } from 'node:fs';
 import { join, relative } from 'node:path';
 
 const repoRoot = process.cwd();
 const sourceRoots = ['apps', 'packages', 'scripts'];
-const blockedExtensions = new Set(['.js', '.mjs', '.cjs']);
+const blockedExtensions = new Set(['.js', '.jsx', '.mjs', '.cjs']);
 const ignoredDirs = new Set(['node_modules', 'dist', 'coverage', '.git', '.vite']);
 
 function walk(dirPath: string, hits: string[]) {
@@ -25,24 +26,36 @@ function walk(dirPath: string, hits: string[]) {
   }
 }
 
+function findTrackedJavaScriptFiles() {
+  const output = execFileSync('git', ['ls-files', '*.js', '*.jsx', '*.mjs', '*.cjs'], {
+    cwd: repoRoot,
+    encoding: 'utf8',
+  });
+
+  return output.split('\n').filter(Boolean);
+}
+
 function main() {
   const hits: string[] = [];
+  const trackedHits = findTrackedJavaScriptFiles();
 
   for (const sourceRoot of sourceRoots) {
     walk(join(repoRoot, sourceRoot), hits);
   }
 
-  if (hits.length > 0) {
-    console.error('JavaScript source files are not allowed in first-party source roots.');
-    console.error('Migrate these files to TypeScript instead:');
-    for (const hit of hits.sort()) {
+  const allHits = Array.from(new Set([...trackedHits, ...hits])).sort();
+
+  if (allHits.length > 0) {
+    console.error('JavaScript files are not allowed in first-party source or tracked files.');
+    console.error('Migrate these files to TypeScript or remove generated artifacts from Git:');
+    for (const hit of allHits) {
       console.error(`- ${hit}`);
     }
     process.exitCode = 1;
     return;
   }
 
-  console.info('No JavaScript source files found in first-party source roots.');
+  console.info('No JavaScript files found in first-party source roots or Git-tracked files.');
 }
 
 main();