diff --git a/package.json b/package.json
index 9e3a1d8..574918a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@kevisual/project-search",
-  "version": "0.0.8",
+  "version": "0.0.9",
   "description": "",
   "main": "index.js",
   "scripts": {
diff --git a/src/project/project-search/file-list-content.ts b/src/project/project-search/file-list-content.ts
index c17bf78..9c3f0f2 100644
--- a/src/project/project-search/file-list-content.ts
+++ b/src/project/project-search/file-list-content.ts
@@ -23,13 +23,23 @@ const TEXT_FILE_EXTENSIONS = [
   '.sh', '.bash', '.zsh', '.fish', '.ps1', '.bat', '.cmd', '.psm1',
   // 其他
   '.sql', '.graphql', '.gql', '.proto', '.dockerfile', '.gitignore', '.gitattributes', '.editorconfig', '.eslintrc', '.prettierrc', '.prettierignore', '.npmrc', '.yarnrc', '.babelrc', '.webpackrc',
+  // lock 文件
+  '.lock', '-lock.json', '-lock.yaml', '-lock.yml', '.lockb',
+  // 其他配置文件
+  '.pem', '.key', '.crt', '.cer', '.p12', '.pfx',
 ];
 
 // 没有扩展名的配置文件
 const CONFIG_FILE_NAMES = [
-  '.gitignore', '.gitattributes', '.dockerignore', '.editorconfig', '.env', '.env.local', '.env.development', '.env.production',
+  '.gitignore', '.gitattributes', '.dockerignore', '.editorconfig', '.env', '.env.local', '.env.development', '.env.production', '.env.test', '.env.staging', '.env.example', '.env.sample',
   'Dockerfile', 'Makefile', 'CMakeLists.txt', 'Vagrantfile', 'Gemfile', 'Podfile', 'Cartfile',
   '.bashrc', '.zshrc', '.vimrc', '.inputrc',
+  // lock 文件
+  'bun.lockb', 'package-lock.json', 'yarn.lock', 'pnpm-lock.yaml', 'pnpm-workspace.yaml',
+  'Gemfile.lock', 'Podfile.lock', 'Cartfile.resolved', 'composer.lock', 'requirements.txt',
+  'Pipfile.lock', 'poetry.lock', 'Cargo.lock', 'go.sum', 'go.mod',
+  // IDE 配置
+  '.vscode', '.idea',
 ];
 
 export const isText = (filePath: string): boolean => {
diff --git a/src/project/project-search/index.ts b/src/project/project-search/index.ts
index 6357c25..1fe471a 100644
--- a/src/project/project-search/index.ts
+++ b/src/project/project-search/index.ts
@@ -53,9 +53,15 @@ function fileId(filePath: string): string {
   return Buffer.from(filePath).toString('base64url');
 }
 
-/** 根据文件绝对路径生成 md5 hash */
+/** 根据文件内容生成 md5 hash，用于检测文件变更 */
 function fileHash(filePath: string): string {
-  return crypto.createHash('md5').update(filePath).digest('hex');
+  try {
+    const content = fs.readFileSync(filePath);
+    return crypto.createHash('md5').update(content).digest('hex');
+  } catch {
+    // 文件不可读时回退为路径 hash
+    return crypto.createHash('md5').update(filePath).digest('hex');
+  }
 }
 
 export class ProjectSearch {