diff --git a/.gitignore b/.gitignore
index fd3dbb5..04e4071 100644
--- a/.gitignore
+++ b/.gitignore
@@ -34,3 +34,5 @@ yarn-error.log*
 # typescript
 *.tsbuildinfo
 next-env.d.ts
+
+dist/
\ No newline at end of file
diff --git a/README.md b/README.md
index aa113ba..a091bd6 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,14 @@ cp .env.example .env.local
 PROJECT_DIRECTORY=/path/to/your/project # Ex: /Users/you/your-project
 ```
 
+4. run on commad line 
+```bash
+npm install
+npm link
+
+o1-xml-parser <xml-code-changes-file> <project-directory>
+```
+
 ## The XML Prompt
 
 You are an expert software engineer.
diff --git a/app/_components/apply-changes-form.tsx b/app/_components/apply-changes-form.tsx
index f583622..db6a914 100644
--- a/app/_components/apply-changes-form.tsx
+++ b/app/_components/apply-changes-form.tsx
@@ -46,7 +46,7 @@ export function ApplyChangesForm() {
           type="text"
           value={projectDirectory}
           onChange={(e) => setProjectDirectory(e.target.value)}
-          placeholder="e.g. /Users/myusername/projects/o1-xml-parser"
+          placeholder={projectDirectory.trim() !== "" ? projectDirectory.trim() : process.env.PROJECT_DIRECTORY}
         />
       </div>
       <div className="flex flex-col">
diff --git a/cli.ts b/cli.ts
new file mode 100644
index 0000000..911c23d
--- /dev/null
+++ b/cli.ts
@@ -0,0 +1,42 @@
+#!/usr/bin/env node
+
+import { promises as fs } from "fs";
+import { parseXmlString } from "./lib/xml-parser";
+import { applyFileChanges } from "./lib/apply-changes";
+import { join } from "path";
+
+async function main() {
+  try {
+    // Get arguments
+    const xmlPath = process.argv[2];
+    const projectDir = process.argv[3];
+
+    if (!xmlPath || !projectDir) {
+      console.error("Usage: o1-xml-parser <xml-file-path> <project-directory>");
+      process.exit(1);
+    }
+
+    // Read XML file
+    const xmlContent = await fs.readFile(xmlPath, "utf-8");
+
+    // Parse XML
+    const changes = await parseXmlString(xmlContent);
+    if (!changes) {
+      console.error("Failed to parse XML or no changes found");
+      process.exit(1);
+    }
+
+    // Apply changes
+    for (const change of changes) {
+      console.log(`Applying ${change.file_operation} to ${change.file_path}...`);
+      await applyFileChanges(change, projectDir);
+    }
+
+    console.log("All changes applied successfully!");
+  } catch (error) {
+    console.error("Error:", error);
+    process.exit(1);
+  }
+}
+
+main();
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index f575b10..b212cb4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,10 +18,14 @@
         "tailwind-merge": "^2.5.5",
         "tailwindcss-animate": "^1.0.7"
       },
+      "bin": {
+        "o1-xml-parser": "dist/cli.js"
+      },
       "devDependencies": {
         "@types/node": "^20",
         "@types/react": "^18",
         "@types/react-dom": "^18",
+        "@types/xmldom": "^0.1.34",
         "eslint": "^8",
         "eslint-config-next": "14.2.16",
         "postcss": "^8",
@@ -524,6 +528,13 @@
         "@types/react": "^18"
       }
     },
+    "node_modules/@types/xmldom": {
+      "version": "0.1.34",
+      "resolved": "https://registry.npmjs.org/@types/xmldom/-/xmldom-0.1.34.tgz",
+      "integrity": "sha512-7eZFfxI9XHYjJJuugddV6N5YNeXgQE1lArWOcd1eCOKWb/FGs5SIjacSYuEJuwhsGS3gy4RuZ5EUIcqYscuPDA==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@typescript-eslint/eslint-plugin": {
       "version": "8.17.0",
       "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-8.17.0.tgz",
@@ -1189,9 +1200,9 @@
       }
     },
     "node_modules/caniuse-lite": {
-      "version": "1.0.30001687",
-      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001687.tgz",
-      "integrity": "sha512-0S/FDhf4ZiqrTUiQ39dKeUjYRjkv7lOZU1Dgif2rIqrTzX/1wV2hfKu9TOm1IHkdSijfLswxTFzl/cvir+SLSQ==",
+      "version": "1.0.30001688",
+      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001688.tgz",
+      "integrity": "sha512-Nmqpru91cuABu/DTCXbM2NSRHzM2uVHfPnhJ/1zEAJx/ILBRVmz3pzH4N7DZqbdG0gWClsCC05Oj0mJ/1AWMbA==",
       "funding": [
         {
           "type": "opencollective",
diff --git a/package.json b/package.json
index bc156d3..c98b77c 100644
--- a/package.json
+++ b/package.json
@@ -2,9 +2,13 @@
   "name": "o1-xml-parser",
   "version": "0.1.0",
   "private": true,
+  "bin": {
+    "o1-xml-parser": "./dist/cli.js"
+  },
   "scripts": {
     "dev": "next dev",
-    "build": "next build",
+    "build": "next build && tsc cli.ts --outDir dist --esModuleInterop --module commonjs",
+    "postbuild": "chmod +x ./dist/cli.js",
     "start": "next start",
     "lint": "next lint"
   },
@@ -23,10 +27,11 @@
     "@types/node": "^20",
     "@types/react": "^18",
     "@types/react-dom": "^18",
+    "@types/xmldom": "^0.1.34",
     "eslint": "^8",
     "eslint-config-next": "14.2.16",
     "postcss": "^8",
     "tailwindcss": "^3.4.1",
     "typescript": "^5"
   }
-}
+}
\ No newline at end of file