diff --git a/agent.py b/agent.py
new file mode 100644
index 0000000..6beb3fa
--- /dev/null
+++ b/agent.py
@@ -0,0 +1,316 @@
+"""
+Code Agent - Handles file operations, code execution, and testing
+"""
+
+import os
+import json
+import requests
+import subprocess
+import webbrowser
+import time
+from pathlib import Path
+from datetime import datetime
+from typing import Dict, Any
+from dotenv import load_dotenv
+
+load_dotenv()
+
+# ============================================================================
+# CONFIGURATION
+# ============================================================================
+
+LLM_SERVER = os.getenv("LLM_SERVER_URL", "http://localhost:8000")
+OLLAMA_URL = os.getenv("OLLAMA_URL", "http://localhost:11434")
+LLM_FAST = os.getenv("LLM_FAST_MODEL", "phi")
+LLM_POWER = os.getenv("LLM_POWER_MODEL", "deepseek-coder:33b")
+
+# ============================================================================
+# CODE AGENT CLASS
+# ============================================================================
+
+class CodeAgent:
+    """Agent that modifies files, executes code, and tests in browser"""
+    
+    def __init__(self, work_dir: str = "./workspace"):
+        self.work_dir = Path(work_dir)
+        self.work_dir.mkdir(exist_ok=True)
+        print(f"📁 Workspace: {self.work_dir.absolute()}")
+    
+    # ========================================================================
+    # FILE OPERATIONS
+    # ========================================================================
+    
+    def read_file(self, file_path: str) -> str:
+        """Read file from workspace"""
+        file = self.work_dir / file_path
+        
+        if not file.exists():
+            return f"❌ File not found: {file_path}"
+        
+        try:
+            with open(file, 'r', encoding='utf-8') as f:
+                content = f.read()
+            print(f"✅ Read: {file_path} ({len(content)} bytes)")
+            return content
+        except Exception as e:
+            return f"❌ Error reading {file_path}: {e}"
+    
+    def write_file(self, file_path: str, content: str) -> str:
+        """Write/modify file in workspace"""
+        file = self.work_dir / file_path
+        file.parent.mkdir(parents=True, exist_ok=True)
+        
+        try:
+            with open(file, 'w', encoding='utf-8') as f:
+                f.write(content)
+            print(f"✅ Wrote: {file_path}")
+            return f"File saved: {file_path}"
+        except Exception as e:
+            return f"❌ Error writing {file_path}: {e}"
+    
+    def delete_file(self, file_path: str) -> str:
+        """Delete file from workspace"""
+        file = self.work_dir / file_path
+        
+        if not file.exists():
+            return f"❌ File not found: {file_path}"
+        
+        try:
+            file.unlink()
+            return f"✅ Deleted: {file_path}"
+        except Exception as e:
+            return f"❌ Error deleting {file_path}: {e}"
+    
+    def list_files(self) -> str:
+        """List all files in workspace"""
+        files = list(self.work_dir.rglob("*"))
+        file_list = "\n".join([
+            f"  {f.relative_to(self.work_dir)}" 
+            for f in files if f.is_file()
+        ])
+        return f"📁 Files in workspace:\n{file_list}" if file_list else "📁 No files"
+    
+    # ========================================================================
+    # CODE EXECUTION
+    # ========================================================================
+    
+    def execute_python(self, code: str, file_name: str = "exec.py") -> str:
+        """Execute Python code"""
+        script_path = self.work_dir / file_name
+        
+        try:
+            # Save script
+            with open(script_path, 'w', encoding='utf-8') as f:
+                f.write(code)
+            
+            # Execute
+            result = subprocess.run(
+                ["python3", str(script_path)],
+                capture_output=True,
+                text=True,
+                timeout=30,
+                cwd=self.work_dir
+            )
+            
+            output = result.stdout + result.stderr
+            print(f"🐍 Python executed: {file_name}")
+            return output[:1000]  # Limit output
+        
+        except subprocess.TimeoutExpired:
+            return "❌ Timeout: Script took more than 30 seconds"
+        except Exception as e:
+            return f"❌ Error: {e}"
+    
+    def execute_node(self, code: str, file_name: str = "exec.js") -> str:
+        """Execute Node.js code"""
+        script_path = self.work_dir / file_name
+        
+        try:
+            with open(script_path, 'w', encoding='utf-8') as f:
+                f.write(code)
+            
+            result = subprocess.run(
+                ["node", str(script_path)],
+                capture_output=True,
+                text=True,
+                timeout=30,
+                cwd=self.work_dir
+            )
+            
+            output = result.stdout + result.stderr
+            print(f"📟 Node.js executed: {file_name}")
+            return output[:1000]
+        
+        except FileNotFoundError:
+            return "❌ Node.js not installed"
+        except Exception as e:
+            return f"❌ Error: {e}"
+    
+    def execute_shell(self, command: str) -> str:
+        """Execute shell command (whitelist safe commands only)"""
+        allowed_commands = [
+            'ls', 'pwd', 'mkdir', 'rm', 'cp', 'mv',
+            'cat', 'grep', 'find', 'du', 'df',
+            'git', 'npm', 'pip', 'python'
+        ]
+        
+        cmd_name = command.split()[0] if command else ""
+        if cmd_name not in allowed_commands:
+            return f"❌ Command not allowed: {cmd_name}"
+        
+        try:
+            result = subprocess.run(
+                command.split(),
+                capture_output=True,
+                text=True,
+                timeout=30,
+                cwd=self.work_dir
+            )
+            output = result.stdout + result.stderr
+            return output[:500]
+        except Exception as e:
+            return f"❌ Error: {e}"
+    
+    # ========================================================================
+    # TESTING & BROWSER
+    # ========================================================================
+    
+    def test_html(self, html_file: str) -> str:
+        """Open HTML file in browser for testing"""
+        file_path = self.work_dir / html_file
+        
+        if not file_path.exists():
+            return f"❌ File not found: {html_file}"
+        
+        try:
+            url = f"file:///{file_path.absolute()}".replace("\\", "/")
+            webbrowser.open(url)
+            print(f"🌐 Opened in browser: {html_file}")
+            return f"✅ HTML opened: {html_file}"
+        except Exception as e:
+            return f"❌ Error: {e}"
+    
+    def open_browser(self, url: str) -> str:
+        """Open URL in browser"""
+        try:
+            webbrowser.open(url)
+            return f"✅ Browser opened: {url}"
+        except Exception as e:
+            return f"❌ Error: {e}"
+    
+    # ========================================================================
+    # GIT OPERATIONS
+    # ========================================================================
+    
+    def git_commit(self, message: str = None) -> str:
+        """Auto-commit changes"""
+        try:
+            if not message:
+                message = f"Auto-commit from agent - {datetime.now().isoformat()}"
+            
+            # Git add
+            result = subprocess.run(
+                ['git', 'add', '.'],
+                cwd=self.work_dir,
+                capture_output=True,
+                text=True
+            )
+            
+            if result.returncode != 0:
+                return f"❌ Git add failed: {result.stderr}"
+            
+            # Git commit
+            result = subprocess.run(
+                ['git', 'commit', '-m', message],
+                cwd=self.work_dir,
+                capture_output=True,
+                text=True
+            )
+            
+            if result.returncode != 0:
+                return f"ℹ️ Nothing to commit"
+            
+            return f"✅ Committed: {message}"
+        except Exception as e:
+            return f"❌ Error: {e}"
+    
+    def git_push(self) -> str:
+        """Push to remote repository"""
+        try:
+            result = subprocess.run(
+                ['git', 'push'],
+                cwd=self.work_dir,
+                capture_output=True,
+                text=True,
+                timeout=30
+            )
+            
+            if result.returncode == 0:
+                return "✅ Pushed to remote"
+            else:
+                return f"❌ Push failed: {result.stderr}"
+        except Exception as e:
+            return f"❌ Error: {e}"
+    
+    # ========================================================================
+    # LLM INTERACTION
+    # ========================================================================
+    
+    def call_llm(self, prompt: str, model: str = "phi") -> str:
+        """Call LLM server"""
+        try:
+            response = requests.post(
+                f"{OLLAMA_URL}/api/generate",
+                json={
+                    "model": model,
+                    "prompt": prompt,
+                    "stream": False
+                },
+                timeout=300
+            )
+            
+            if response.status_code == 200:
+                return response.json()["response"]
+            else:
+                return f"❌ LLM Error: {response.status_code}"
+        
+        except requests.exceptions.ConnectionError:
+            return f"❌ Cannot connect to {OLLAMA_URL}"
+        except Exception as e:
+            return f"❌ Error: {e}"
+
+# ============================================================================
+# GET AGENT TOOLS
+# ============================================================================
+
+def get_agent_tools(agent: CodeAgent) -> Dict[str, Any]:
+    """Return dictionary of available tools"""
+    return {
+        "read_file": agent.read_file,
+        "write_file": agent.write_file,
+        "delete_file": agent.delete_file,
+        "execute_python": agent.execute_python,
+        "execute_node": agent.execute_node,
+        "execute_shell": agent.execute_shell,
+        "test_html": agent.test_html,
+        "open_browser": agent.open_browser,
+        "git_commit": agent.git_commit,
+        "git_push": agent.git_push,
+        "list_files": agent.list_files,
+        "call_llm": agent.call_llm,
+    }
+
+# ============================================================================
+# MAIN (for testing)
+# ============================================================================
+
+if __name__ == "__main__":
+    agent = CodeAgent()
+    
+    # Test
+    print("\n🧪 Testing Agent...")
+    print(agent.list_files())
+    
+    # Create test file
+    agent.write_file("test.txt", "Hello from agent!")
+    print(agent.read_file("test.txt"))
\ No newline at end of file
diff --git a/backend.py b/backend.py
new file mode 100644
index 0000000..ddb2132
--- /dev/null
+++ b/backend.py
@@ -0,0 +1,247 @@
+from fastapi import FastAPI, File, UploadFile, Form, HTTPException
+from fastapi.responses import StreamingResponse, JSONResponse
+from fastapi.staticfiles import StaticFiles
+from fastapi.cors import CORSMiddleware
+import aiofiles
+import base64
+import requests
+import json
+import os
+from pathlib import Path
+from dotenv import load_dotenv
+import asyncio
+import io
+from PIL import Image
+import uuid
+
+load_dotenv()
+
+app = FastAPI(title="Code Agent Chat")
+
+# CORS para que el frontend acceda
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# Config
+LLM_SERVER = os.getenv("LLM_SERVER_URL", "http://localhost:8000")
+UPLOAD_DIR = Path("./uploads")
+WORKSPACE_DIR = Path("./workspace")
+UPLOAD_DIR.mkdir(exist_ok=True)
+WORKSPACE_DIR.mkdir(exist_ok=True)
+
+# Importar agent
+from agent import CodeAgent, get_agent_tools
+
+agent = CodeAgent(work_dir=str(WORKSPACE_DIR))
+
+# ============================================================================
+# ENDPOINTS
+# ============================================================================
+
+@app.get("/api/health")
+async def health():
+    """Verificar que el servidor está vivo"""
+    return {"status": "ok", "workspace": str(WORKSPACE_DIR.absolute())}
+
+@app.get("/api/files")
+async def list_files():
+    """Listar archivos en workspace"""
+    files = []
+    for f in WORKSPACE_DIR.rglob("*"):
+        if f.is_file():
+            files.append({
+                "name": str(f.relative_to(WORKSPACE_DIR)),
+                "size": f.stat().st_size,
+                "type": f.suffix
+            })
+    return {"files": files}
+
+@app.get("/api/file/{file_path:path}")
+async def read_file(file_path: str):
+    """Leer contenido de archivo"""
+    file = WORKSPACE_DIR / file_path
+    
+    if not file.exists():
+        raise HTTPException(status_code=404, detail="Archivo no encontrado")
+    
+    try:
+        with open(file, 'r') as f:
+            content = f.read()
+        return {"content": content, "name": file_path}
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=str(e))
+
+@app.post("/api/chat")
+async def chat(
+    message: str = Form(...),
+    image: UploadFile = File(None),
+    model: str = Form("phi")
+):
+    """
+    Endpoint principal de chat
+    - message: tu prompt
+    - image: imagen adjunta (opcional)
+    - model: "phi" (rápido) o "deepseek-coder:33b" (potente)
+    """
+    
+    # Procesar imagen si hay
+    image_data = None
+    image_base64 = None
+    
+    if image:
+        try:
+            contents = await image.read()
+            image_base64 = base64.b64encode(contents).decode()
+            
+            # Guardar imagen
+            image_path = UPLOAD_DIR / f"{uuid.uuid4()}.png"
+            with open(image_path, 'wb') as f:
+                f.write(contents)
+            
+            image_data = f"[Imagen adjunta: {image.filename}]"
+            print(f"📸 Imagen procesada: {image.filename}")
+        
+        except Exception as e:
+            raise HTTPException(status_code=400, detail=f"Error procesando imagen: {e}")
+    
+    # Construir prompt para el LLM
+    full_prompt = f"""
+{message}
+
+{f"Contexto de imagen: {image_data}" if image_data else ""}
+
+Tienes acceso a estas herramientas:
+- read_file(file_path): Leer archivo
+- write_file(file_path, content): Escribir archivo
+- execute_python(code): Ejecutar Python
+- execute_node(code): Ejecutar Node.js
+- test_html(file_name): Servir y testear HTML
+- open_browser(url): Abrir navegador
+- list_files(): Listar archivos
+
+Responde en JSON con tu pensamiento y la acción a ejecutar.
+Ejemplo:
+{{"thought": "Voy a leer el archivo", "action": "read_file", "args": {{"file_path": "app.js"}}}}
+"""
+    
+    # Llamar LLM
+    try:
+        response = requests.post(
+            f"{LLM_SERVER}/code",
+            json={
+                "message": full_prompt,
+                "model": model
+            },
+            timeout=300,
+            stream=False
+        )
+        
+        if response.status_code != 200:
+            raise HTTPException(
+                status_code=response.status_code,
+                detail=response.text
+            )
+        
+        llm_response = response.json()["response"]
+        
+        # Parsear JSON y ejecutar acción
+        result = process_agent_response(llm_response)
+        
+        return {
+            "message": message,
+            "image": image.filename if image else None,
+            "model": model,
+            "llm_response": llm_response,
+            "action_result": result,
+            "image_base64": image_base64
+        }
+    
+    except requests.exceptions.ConnectionError:
+        raise HTTPException(
+            status_code=503,
+            detail=f"No se puede conectar a LLM Server: {LLM_SERVER}"
+        )
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=str(e))
+
+@app.post("/api/chat-stream")
+async def chat_stream(
+    message: str = Form(...),
+    image: UploadFile = File(None),
+    model: str = Form("phi")
+):
+    """Versión streaming (respuestas en tiempo real)"""
+    
+    image_data = None
+    if image:
+        contents = await image.read()
+        image_path = UPLOAD_DIR / f"{uuid.uuid4()}.png"
+        with open(image_path, 'wb') as f:
+            f.write(contents)
+        image_data = f"[Imagen: {image.filename}]"
+    
+    full_prompt = f"{message}\n{image_data if image_data else ''}"
+    
+    async def generate():
+        try:
+            # Streaming desde LLM
+            response = requests.post(
+                f"{LLM_SERVER}/code",
+                json={
+                    "message": full_prompt,
+                    "model": model
+                },
+                timeout=300,
+                stream=True
+            )
+            
+            for line in response.iter_lines():
+                if line:
+                    yield line + b'\n'
+        
+        except Exception as e:
+            yield json.dumps({"error": str(e)}).encode() + b'\n'
+    
+    return StreamingResponse(generate(), media_type="text/event-stream")
+
+def process_agent_response(response: str) -> dict:
+    """Parsear respuesta del LLM y ejecutar acción"""
+    tools = get_agent_tools(agent)
+    
+    try:
+        # Extraer JSON
+        json_start = response.find('{')
+        json_end = response.rfind('}') + 1
+        json_str = response[json_start:json_end]
+        action = json.loads(json_str)
+    except:
+        return {"error": "No se pudo parsear la respuesta", "raw": response[:200]}
+    
+    action_name = action.get("action") or action.get("tool")
+    args = action.get("args", {})
+    
+    if action_name not in tools:
+        return {"error": f"Acción desconocida: {action_name}"}
+    
+    try:
+        result = tools[action_name](**args)
+        return {"success": True, "action": action_name, "result": result}
+    except Exception as e:
+        return {"error": f"Error ejecutando {action_name}: {str(e)}"}
+
+# ============================================================================
+# SERVIR STATIC FILES (UI Frontend)
+# ============================================================================
+
+app.mount("/", StaticFiles(directory="static", html=True), name="static")
+
+if __name__ == "__main__":
+    import uvicorn
+    print(f"🚀 Backend en http://localhost:5000")
+    print(f"📁 Workspace: {WORKSPACE_DIR.absolute()}")
+    uvicorn.run(app, host="0.0.0.0", port=5000)
\ No newline at end of file
diff --git a/config/server.json b/config/server.json
new file mode 100644
index 0000000..6c42982
--- /dev/null
+++ b/config/server.json
@@ -0,0 +1,74 @@
+{
+  "server": {
+    "host": "0.0.0.0",
+    "api_port": 8000,
+    "web_port": 5000,
+    "workers": 4,
+    "debug": false,
+    "environment": "production"
+  },
+  "models": {
+    "fast": {
+      "name": "phi",
+      "description": "Phi 2.7B - Rápido",
+      "vram_required_gb": 2,
+      "tokens_per_second": 50
+    },
+    "power": {
+      "name": "deepseek-coder:33b",
+      "description": "DeepSeek 33B - Potente",
+      "vram_required_gb": 18,
+      "tokens_per_second": 6
+    }
+  },
+  "gpu": {
+    "memory_fraction": 0.9,
+    "max_batch_size": 8,
+    "enable_cuda": true,
+    "device_id": 0
+  },
+  "logging": {
+    "level": "INFO",
+    "format": "%(asctime)s - %(name)s - %(levelname)s - %(message)s",
+    "log_dir": "./logs",
+    "max_file_size_mb": 10,
+    "backup_count": 10
+  },
+  "database": {
+    "type": "sqlite",
+    "path": "./data/llm_history.db",
+    "enable_history": true
+  },
+  "security": {
+    "enable_rate_limit": true,
+    "rate_limit_requests": 100,
+    "rate_limit_period_seconds": 60,
+    "require_api_key": false,
+    "allowed_origins": ["*"]
+  },
+  "workspace": {
+    "path": "./workspace",
+    "max_file_size_mb": 100,
+    "allowed_extensions": [".py", ".js", ".html", ".css", ".json", ".txt", ".md"]
+  },
+  "api_endpoints": {
+    "health": "/api/health",
+    "models": "/api/models",
+    "chat": "/api/chat",
+    "files": "/api/files",
+    "metrics": "/api/metrics"
+  },
+  "ollama": {
+    "host": "localhost",
+    "port": 11434,
+    "timeout_seconds": 300,
+    "auto_download_models": true
+  },
+  "features": {
+    "enable_git_commit": true,
+    "enable_code_execution": true,
+    "enable_file_operations": true,
+    "enable_browser_testing": true,
+    "enable_metrics": true
+  }
+}
\ No newline at end of file
diff --git a/static/index.html b/static/index.html
new file mode 100644
index 0000000..6776450
--- /dev/null
+++ b/static/index.html
@@ -0,0 +1,549 @@
+<!DOCTYPE html>
+<html lang="es">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Code Agent Chat</title>
+    <style>
+        * {
+            margin: 0;
+            padding: 0;
+            box-sizing: border-box;
+        }
+
+        body {
+            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
+            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+            height: 100vh;
+            display: flex;
+        }
+
+        .container {
+            display: flex;
+            width: 100%;
+            gap: 20px;
+            padding: 20px;
+        }
+
+        /* Chat Panel */
+        .chat-panel {
+            flex: 1;
+            display: flex;
+            flex-direction: column;
+            background: white;
+            border-radius: 12px;
+            box-shadow: 0 8px 32px rgba(0,0,0,0.1);
+            overflow: hidden;
+        }
+
+        .chat-header {
+            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+            color: white;
+            padding: 20px;
+            font-size: 20px;
+            font-weight: bold;
+        }
+
+        .chat-messages {
+            flex: 1;
+            overflow-y: auto;
+            padding: 20px;
+            display: flex;
+            flex-direction: column;
+            gap: 15px;
+        }
+
+        .message {
+            display: flex;
+            gap: 10px;
+            animation: slideIn 0.3s ease-out;
+        }
+
+        @keyframes slideIn {
+            from { opacity: 0; transform: translateY(10px); }
+            to { opacity: 1; transform: translateY(0); }
+        }
+
+        .message.user {
+            justify-content: flex-end;
+        }
+
+        .message-content {
+            max-width: 70%;
+            padding: 12px 16px;
+            border-radius: 12px;
+            word-wrap: break-word;
+        }
+
+        .message.user .message-content {
+            background: #667eea;
+            color: white;
+            border-bottom-right-radius: 4px;
+        }
+
+        .message.assistant .message-content {
+            background: #f0f0f0;
+            color: #333;
+            border-bottom-left-radius: 4px;
+        }
+
+        .message-image {
+            max-width: 200px;
+            border-radius: 8px;
+            margin-top: 8px;
+        }
+
+        .message-meta {
+            font-size: 12px;
+            color: #999;
+            margin-top: 4px;
+        }
+
+        /* Input Area */
+        .input-area {
+            border-top: 1px solid #e0e0e0;
+            padding: 20px;
+            background: #fafafa;
+        }
+
+        .input-container {
+            display: flex;
+            gap: 10px;
+            margin-bottom: 10px;
+        }
+
+        textarea {
+            flex: 1;
+            padding: 12px;
+            border: 1px solid #ddd;
+            border-radius: 8px;
+            resize: vertical;
+            min-height: 60px;
+            max-height: 120px;
+            font-family: inherit;
+            font-size: 14px;
+        }
+
+        textarea:focus {
+            outline: none;
+            border-color: #667eea;
+            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
+        }
+
+        .button-group {
+            display: flex;
+            gap: 10px;
+        }
+
+        button {
+            padding: 10px 20px;
+            border: none;
+            border-radius: 8px;
+            cursor: pointer;
+            font-weight: 600;
+            transition: all 0.2s;
+        }
+
+        .send-btn {
+            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+            color: white;
+            flex: 1;
+        }
+
+        .send-btn:hover {
+            transform: translateY(-2px);
+            box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
+        }
+
+        .send-btn:disabled {
+            opacity: 0.5;
+            cursor: not-allowed;
+            transform: none;
+        }
+
+        .file-input-wrapper {
+            position: relative;
+            overflow: hidden;
+        }
+
+        .file-input-wrapper input[type="file"] {
+            display: none;
+        }
+
+        .upload-btn {
+            background: #4CAF50;
+            color: white;
+            padding: 10px 20px;
+        }
+
+        .upload-btn:hover {
+            background: #45a049;
+        }
+
+        .selected-image {
+            max-width: 150px;
+            max-height: 150px;
+            border-radius: 8px;
+            margin-top: 10px;
+        }
+
+        .image-indicator {
+            font-size: 12px;
+            color: #666;
+            margin-top: 5px;
+        }
+
+        /* Sidebar */
+        .sidebar {
+            width: 300px;
+            background: white;
+            border-radius: 12px;
+            box-shadow: 0 8px 32px rgba(0,0,0,0.1);
+            display: flex;
+            flex-direction: column;
+            overflow: hidden;
+        }
+
+        .sidebar-header {
+            background: #f5f5f5;
+            padding: 15px;
+            font-weight: bold;
+            border-bottom: 1px solid #e0e0e0;
+        }
+
+        .sidebar-content {
+            flex: 1;
+            overflow-y: auto;
+            padding: 15px;
+        }
+
+        .file-item {
+            padding: 8px 12px;
+            background: #f9f9f9;
+            border-radius: 6px;
+            margin-bottom: 8px;
+            font-size: 13px;
+            cursor: pointer;
+            transition: all 0.2s;
+            border-left: 3px solid transparent;
+        }
+
+        .file-item:hover {
+            background: #f0f0f0;
+            border-left-color: #667eea;
+        }
+
+        .model-selector {
+            padding: 15px;
+            border-top: 1px solid #e0e0e0;
+        }
+
+        select {
+            width: 100%;
+            padding: 8px;
+            border: 1px solid #ddd;
+            border-radius: 6px;
+        }
+
+        .loading {
+            display: inline-block;
+            width: 8px;
+            height: 8px;
+            background: #667eea;
+            border-radius: 50%;
+            animation: pulse 1.5s infinite;
+            margin-right: 5px;
+        }
+
+        @keyframes pulse {
+            0%, 100% { opacity: 1; }
+            50% { opacity: 0.5; }
+        }
+
+        .error {
+            background: #ffebee;
+            color: #c62828;
+            padding: 12px;
+            border-radius: 8px;
+            margin-top: 10px;
+        }
+
+        .success {
+            background: #e8f5e9;
+            color: #2e7d32;
+            padding: 12px;
+            border-radius: 8px;
+            margin-top: 10px;
+        }
+
+        @media (max-width: 768px) {
+            .container {
+                flex-direction: column;
+            }
+
+            .sidebar {
+                width: 100%;
+            }
+
+            .message-content {
+                max-width: 90%;
+            }
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <!-- Chat Panel -->
+        <div class="chat-panel">
+            <div class="chat-header">🤖 Code Agent Chat</div>
+            
+            <div class="chat-messages" id="chatMessages"></div>
+            
+            <div class="input-area">
+                <div class="input-container">
+                    <textarea 
+                        id="messageInput" 
+                        placeholder="Escribe tu directive aquí... (ej: Crea un contador HTML)"
+                        onkeydown="if(event.key==='Enter' && event.ctrlKey) sendMessage();"
+                    ></textarea>
+                </div>
+                
+                <div id="selectedImageContainer" style="display:none;">
+                    <img id="selectedImagePreview" class="selected-image" alt="Imagen seleccionada">
+                    <div class="image-indicator" id="imageIndicator"></div>
+                </div>
+                
+                <div class="button-group">
+                    <div class="file-input-wrapper">
+                        <input type="file" id="imageInput" accept="image/*">
+                        <button class="upload-btn" onclick="document.getElementById('imageInput').click();">
+                            📸 Adjuntar Imagen
+                        </button>
+                    </div>
+                    <button class="send-btn" id="sendBtn" onclick="sendMessage();">
+                        Enviar (Ctrl+Enter)
+                    </button>
+                </div>
+            </div>
+        </div>
+
+        <!-- Sidebar -->
+        <div class="sidebar">
+            <div class="sidebar-header">📁 Workspace</div>
+            
+            <div class="sidebar-content" id="fileList">
+                <p style="color: #999; font-size: 13px;">Cargando archivos...</p>
+            </div>
+            
+            <div class="model-selector">
+                <label style="font-size: 12px; color: #666;">Modelo LLM:</label>
+                <select id="modelSelect" onchange="localStorage.setItem('selectedModel', this.value)">
+                    <option value="phi">⚡ Phi (Rápido)</option>
+                    <option value="deepseek-coder:33b">🧠 DeepSeek (Potente)</option>
+                </select>
+            </div>
+        </div>
+    </div>
+
+    <script>
+        const API_URL = "http://localhost:5000/api";
+        const chatMessagesDiv = document.getElementById("chatMessages");
+        const messageInput = document.getElementById("messageInput");
+        const sendBtn = document.getElementById("sendBtn");
+        const imageInput = document.getElementById("imageInput");
+        const fileList = document.getElementById("fileList");
+        const modelSelect = document.getElementById("modelSelect");
+        const selectedImageContainer = document.getElementById("selectedImageContainer");
+        const selectedImagePreview = document.getElementById("selectedImagePreview");
+        const imageIndicator = document.getElementById("imageIndicator");
+
+        let selectedImage = null;
+
+        // Load saved model
+        const savedModel = localStorage.getItem("selectedModel") || "phi";
+        modelSelect.value = savedModel;
+
+        // Manejo de imagen
+        imageInput.addEventListener("change", (e) => {
+            const file = e.target.files[0];
+            if (file) {
+                selectedImage = file;
+                const reader = new FileReader();
+                reader.onload = (event) => {
+                    selectedImagePreview.src = event.target.result;
+                    imageIndicator.textContent = `✅ ${file.name} seleccionada`;
+                    selectedImageContainer.style.display = "block";
+                };
+                reader.readAsDataURL(file);
+            }
+        });
+
+        // Limpiar imagen
+        function clearImage() {
+            selectedImage = null;
+            imageInput.value = "";
+            selectedImageContainer.style.display = "none";
+        }
+
+        // Enviar mensaje
+        async function sendMessage() {
+            const message = messageInput.value.trim();
+            if (!message) return;
+
+            const model = modelSelect.value;
+
+            // Mostrar mensaje del usuario
+            addMessage(message, "user", selectedImage);
+            messageInput.value = "";
+            clearImage();
+            sendBtn.disabled = true;
+
+            try {
+                // Preparar form data
+                const formData = new FormData();
+                formData.append("message", message);
+                formData.append("model", model);
+                if (selectedImage) {
+                    formData.append("image", selectedImage);
+                }
+
+                // Enviar
+                const response = await fetch(`${API_URL}/chat`, {
+                    method: "POST",
+                    body: formData
+                });
+
+                if (!response.ok) {
+                    const error = await response.json();
+                    addMessage(`❌ Error: ${error.detail}`, "assistant");
+                    return;
+                }
+
+                const data = await response.json();
+
+                // Mostrar respuesta del LLM
+                addMessage(data.llm_response, "assistant", null, model);
+
+                // Mostrar resultado de la acción
+                if (data.action_result) {
+                    const resultText = JSON.stringify(data.action_result, null, 2);
+                    if (data.action_result.success) {
+                        addMessage(`✅ ${data.action_result.result}`, "assistant");
+                    } else {
+                        addMessage(`⚠️ ${data.action_result.error || data.action_result.result}`, "assistant");
+                    }
+                }
+
+                // Recargar archivos
+                loadFiles();
+            } catch (error) {
+                addMessage(`❌ Error: ${error.message}`, "assistant");
+            } finally {
+                sendBtn.disabled = false;
+                messageInput.focus();
+            }
+        }
+
+        // Agregar mensaje al chat
+        function addMessage(text, sender, image = null, model = null) {
+            const messageDiv = document.createElement("div");
+            messageDiv.className = `message ${sender}`;
+
+            const contentDiv = document.createElement("div");
+            contentDiv.className = "message-content";
+
+            // Formatear texto (markdown básico)
+            let formattedText = text
+                .replace(/```([^`]*?)```/g, "<pre><code>$1</code></pre>")
+                .replace(/\*\*(.*?)\*\*/g, "<strong>$1</strong>")
+                .replace(/_(.*?)_/g, "<em>$1</em>");
+
+            contentDiv.innerHTML = formattedText;
+
+            if (image instanceof File) {
+                const reader = new FileReader();
+                reader.onload = (e) => {
+                    const img = document.createElement("img");
+                    img.src = e.target.result;
+                    img.className = "message-image";
+                    contentDiv.appendChild(img);
+                };
+                reader.readAsDataURL(image);
+            }
+
+            messageDiv.appendChild(contentDiv);
+
+            if (model) {
+                const meta = document.createElement("div");
+                meta.className = "message-meta";
+                meta.textContent = `Modelo: ${model}`;
+                messageDiv.appendChild(meta);
+            }
+
+            chatMessagesDiv.appendChild(messageDiv);
+            chatMessagesDiv.scrollTop = chatMessagesDiv.scrollHeight;
+        }
+
+        // Cargar archivos del workspace
+        async function loadFiles() {
+            try {
+                const response = await fetch(`${API_URL}/files`);
+                const data = await response.json();
+
+                fileList.innerHTML = "";
+
+                if (data.files.length === 0) {
+                    fileList.innerHTML = '<p style="color: #999; font-size: 13px;">Sin archivos aún</p>';
+                    return;
+                }
+
+                data.files.forEach(file => {
+                    const item = document.createElement("div");
+                    item.className = "file-item";
+                    
+                    let icon = "📄";
+                    if (file.type === ".html") icon = "🌐";
+                    if (file.type === ".js") icon = "📜";
+                    if (file.type === ".py") icon = "🐍";
+                    if (file.type === ".css") icon = "🎨";
+                    
+                    item.innerHTML = `${icon} <strong>${file.name}</strong><br>
+                                     <span style="font-size: 11px; color: #999;">${(file.size / 1024).toFixed(1)} KB</span>`;
+                    
+                    item.onclick = async () => {
+                        try {
+                            const fileResponse = await fetch(`${API_URL}/file/${file.name}`);
+                            const fileData = await fileResponse.json();
+                            addMessage(`\`\`\`\n${fileData.content}\n\`\`\``, "assistant");
+                        } catch (e) {
+                            addMessage(`Error leyendo ${file.name}`, "assistant");
+                        }
+                    };
+                    
+                    fileList.appendChild(item);
+                });
+            } catch (error) {
+                console.error("Error cargando archivos:", error);
+            }
+        }
+
+        // Cargar archivos al iniciar
+        loadFiles();
+
+        // Auto-refresh cada 10 segundos
+        setInterval(loadFiles, 10000);
+
+        // Enter para enviar
+        messageInput.addEventListener("keydown", (e) => {
+            if (e.key === "Enter" && e.ctrlKey) {
+                sendMessage();
+            }
+        });
+
+        // Mensaje inicial
+        setTimeout(() => {
+            addMessage("👋 Hola! Soy tu agent agentico. Puedes:\n\n- **Pedir que cree código** (HTML, Python, Node.js)\n- **Adjuntar imágenes** (capturas, diseños)\n- **Dar directivas** para modificar tus archivos\n- **Ejecutar y testear** automáticamente en el navegador\n\n¿Qué querés crear?", "assistant");
+        }, 500);
+    </script>
+</body>
+</html>
\ No newline at end of file