diff --git a/index.ts b/index.ts
index ada42a1..5201291 100644
--- a/index.ts
+++ b/index.ts
@@ -1,69 +1,102 @@
 #!/usr/bin/env node
-import { Command } from 'commander';
-import inquirer from 'inquirer';
-import fs from 'fs-extra';
-import path from 'path';
-import { execSync } from 'child_process';
-import chalk from 'chalk';
-import ora from 'ora';
-import { fileURLToPath } from 'url';
+import chalk from "chalk";
+import { execSync } from "child_process";
+import { Command } from "commander";
+import fs from "fs-extra";
+import inquirer from "inquirer";
+import ora from "ora";
+import path from "path";
+import { fileURLToPath } from "url";
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);
 
 // Types for better type safety
-type LanguageKey = 'typescript' | 'python';
-type TemplateKey = 'sample-app' | 'browser-use' | 'stagehand';
+type LanguageKey = "typescript" | "python";
+type TemplateKey =
+  | "sample-app"
+  | "browser-use"
+  | "stagehand"
+  | "persistent-browser";
 type LanguageInfo = { name: string; shorthand: string };
-type TemplateInfo = { name: string; description: string; languages: LanguageKey[] };
+type TemplateInfo = {
+  name: string;
+  description: string;
+  languages: LanguageKey[];
+};
 
 // String constants
-const LANGUAGE_TYPESCRIPT = 'typescript';
-const LANGUAGE_PYTHON = 'python';
-const TEMPLATE_SAMPLE_APP = 'sample-app';
-const TEMPLATE_BROWSER_USE = 'browser-use';
-const TEMPLATE_STAGEHAND = 'stagehand';
-const LANGUAGE_SHORTHAND_TS = 'ts';
-const LANGUAGE_SHORTHAND_PY = 'py';
+const LANGUAGE_TYPESCRIPT = "typescript";
+const LANGUAGE_PYTHON = "python";
+const TEMPLATE_SAMPLE_APP = "sample-app";
+const TEMPLATE_BROWSER_USE = "browser-use";
+const TEMPLATE_STAGEHAND = "stagehand";
+const TEMPLATE_PERSISTENT_BROWSER = "persistent-browser";
+const LANGUAGE_SHORTHAND_TS = "ts";
+const LANGUAGE_SHORTHAND_PY = "py";
 
 // Configuration constants
 const LANGUAGES: Record<LanguageKey, LanguageInfo> = {
-  [LANGUAGE_TYPESCRIPT]: { name: 'TypeScript', shorthand: LANGUAGE_SHORTHAND_TS },
-  [LANGUAGE_PYTHON]: { name: 'Python', shorthand: LANGUAGE_SHORTHAND_PY }
+  [LANGUAGE_TYPESCRIPT]: {
+    name: "TypeScript",
+    shorthand: LANGUAGE_SHORTHAND_TS,
+  },
+  [LANGUAGE_PYTHON]: { name: "Python", shorthand: LANGUAGE_SHORTHAND_PY },
 };
 
 const TEMPLATES: Record<TemplateKey, TemplateInfo> = {
-  [TEMPLATE_SAMPLE_APP]: { 
-    name: 'Sample App', 
-    description: 'Extracts page title using Playwright',
-    languages: [LANGUAGE_TYPESCRIPT, LANGUAGE_PYTHON]
+  [TEMPLATE_SAMPLE_APP]: {
+    name: "Sample App",
+    description: "Extracts page title using Playwright",
+    languages: [LANGUAGE_TYPESCRIPT, LANGUAGE_PYTHON],
   },
   [TEMPLATE_BROWSER_USE]: {
-    name: 'Browser Use',
-    description: 'Implements Browser Use SDK',
-    languages: [LANGUAGE_PYTHON]
+    name: "Browser Use",
+    description: "Implements Browser Use SDK",
+    languages: [LANGUAGE_PYTHON],
+  },
+  [TEMPLATE_STAGEHAND]: {
+    name: "Stagehand",
+    description: "Implements the Stagehand SDK",
+    languages: [LANGUAGE_TYPESCRIPT],
   },
-  [TEMPLATE_STAGEHAND]: { 
-    name: 'Stagehand', 
-    description: 'Implements the Stagehand SDK',
-    languages: [LANGUAGE_TYPESCRIPT]
+  [TEMPLATE_PERSISTENT_BROWSER]: {
+    name: "Persistent Browser",
+    description:
+      "Implements a persistent browser that maintains state across invocations",
+    languages: [LANGUAGE_TYPESCRIPT],
   },
 };
 
-const INVOKE_SAMPLES: Record<string, string> = {
-  'typescript-sample-app': 'kernel invoke ts-basic get-page-title --payload \'{"url": "https://www.google.com"}\'',
-  'python-sample-app': 'kernel invoke python-basic get-page-title --payload \'{"url": "https://www.google.com"}\'',
-  'python-browser-use': 'kernel invoke python-bu bu-task --payload \'{"task": "Compare the price of gpt-4o and DeepSeek-V3"}\'',
-  'typescript-stagehand': 'kernel invoke ts-stagehand stagehand-task --payload \'{"query": "Best wired earbuds"}\''
+const INVOKE_SAMPLES: Record<
+  LanguageKey,
+  Partial<Record<TemplateKey, string>>
+> = {
+  [LANGUAGE_TYPESCRIPT]: {
+    [TEMPLATE_SAMPLE_APP]:
+      'kernel invoke ts-basic get-page-title --payload \'{"url": "https://www.google.com"}\'',
+    [TEMPLATE_STAGEHAND]:
+      'kernel invoke ts-stagehand stagehand-task --payload \'{"query": "Best wired earbuds"}\'',
+    [TEMPLATE_PERSISTENT_BROWSER]:
+      'kernel invoke ts-persistent-browser persistent-browser-task --payload \'{"url": "https://news.ycombinator.com/"}\'',
+  },
+  [LANGUAGE_PYTHON]: {
+    [TEMPLATE_SAMPLE_APP]:
+      'kernel invoke python-basic get-page-title --payload \'{"url": "https://www.google.com"}\'',
+    [TEMPLATE_BROWSER_USE]:
+      'kernel invoke python-bu bu-task --payload \'{"task": "Compare the price of gpt-4o and DeepSeek-V3"}\'',
+    [TEMPLATE_PERSISTENT_BROWSER]:
+      'kernel invoke python-persistent-browser persistent-browser-task --payload \'{"url": "https://news.ycombinator.com/"}\'',
+  },
 };
 
 const CONFIG = {
-  templateBasePath: path.resolve(__dirname, '../templates'),
-  defaultAppName: 'my-kernel-app',
+  templateBasePath: path.resolve(__dirname, "../templates"),
+  defaultAppName: "my-kernel-app",
   installCommands: {
-    typescript: 'npm install',
-    python: 'uv venv'
-  }
+    typescript: "npm install",
+    python: "uv venv",
+  },
 };
 
 // Helper for extracting error messages
@@ -76,48 +109,55 @@ function getErrorMessage(error: unknown): string {
 function normalizeLanguage(language: string): LanguageKey | null {
   if (language === LANGUAGE_SHORTHAND_TS) return LANGUAGE_TYPESCRIPT;
   if (language === LANGUAGE_SHORTHAND_PY) return LANGUAGE_PYTHON;
-  return (LANGUAGES[language as LanguageKey]) ? language as LanguageKey : null;
+  return LANGUAGES[language as LanguageKey] ? (language as LanguageKey) : null;
 }
 
 // Validate if a template is available for the selected language
-function isTemplateValidForLanguage(template: string, language: LanguageKey): boolean {
+function isTemplateValidForLanguage(
+  template: string,
+  language: LanguageKey
+): boolean {
   return (
-    TEMPLATES[template as TemplateKey] !== undefined && 
+    TEMPLATES[template as TemplateKey] !== undefined &&
     TEMPLATES[template as TemplateKey].languages.includes(language)
   );
 }
 
 // Get list of templates available for a language
-function getAvailableTemplatesForLanguage(language: LanguageKey): { name: string; value: string }[] {
+function getAvailableTemplatesForLanguage(
+  language: LanguageKey
+): { name: string; value: string }[] {
   return Object.entries(TEMPLATES)
     .filter(([_, { languages }]) => languages.includes(language))
-    .map(([value, { name, description }]) => ({ 
-      name: `${name} - ${description}`, 
-      value 
+    .map(([value, { name, description }]) => ({
+      name: `${name} - ${description}`,
+      value,
     }));
 }
 
 // Prompt for app name if not provided
 async function promptForAppName(providedAppName?: string): Promise<string> {
   if (providedAppName) return providedAppName;
-  
-  const { appName } = await inquirer.prompt([{
-    type: 'input',
-    name: 'appName',
-    message: 'What is the name of your project?',
-    default: CONFIG.defaultAppName,
-    validate: (input: string): boolean | string => {
-      if (/^([A-Za-z\-_\d])+$/.test(input)) return true;
-      return 'Project name may only include letters, numbers, underscores and hyphens.';
-    }
-  }]);
-  
+
+  const { appName } = await inquirer.prompt([
+    {
+      type: "input",
+      name: "appName",
+      message: "What is the name of your project?",
+      default: CONFIG.defaultAppName,
+      validate: (input: string): boolean | string => {
+        if (/^([A-Za-z\-_\d])+$/.test(input)) return true;
+        return "Project name may only include letters, numbers, underscores and hyphens.";
+      },
+    },
+  ]);
+
   return appName;
 }
 
 // Prompt for programming language
 async function promptForLanguage(
-  providedLanguage?: string, 
+  providedLanguage?: string,
   supportedLanguages: LanguageKey[] = Object.keys(LANGUAGES) as LanguageKey[]
 ): Promise<LanguageKey> {
   // If language provided, normalize it
@@ -126,44 +166,49 @@ async function promptForLanguage(
     if (normalizedLanguage && supportedLanguages.includes(normalizedLanguage)) {
       return normalizedLanguage;
     }
-    
+
     // If provided but not valid, we'll warn user later and prompt anyway
   }
-  
-  const { language } = await inquirer.prompt([{
-    type: 'list',
-    name: 'language',
-    message: 'Choose a programming language:',
-    choices: Object.entries(LANGUAGES)
-      .filter(([key]) => supportedLanguages.includes(key as LanguageKey))
-      .map(([value, { name }]) => ({ 
-        name, value 
-      }))
-  }]);
-  
+
+  const { language } = await inquirer.prompt([
+    {
+      type: "list",
+      name: "language",
+      message: "Choose a programming language:",
+      choices: Object.entries(LANGUAGES)
+        .filter(([key]) => supportedLanguages.includes(key as LanguageKey))
+        .map(([value, { name }]) => ({
+          name,
+          value,
+        })),
+    },
+  ]);
+
   return language;
 }
 
 // Prompt for template
 async function promptForTemplate(
-  language: LanguageKey, 
+  language: LanguageKey,
   providedTemplate?: string
 ): Promise<TemplateKey> {
   // If template provided and valid for language, use it
   if (
-    providedTemplate && 
+    providedTemplate &&
     isTemplateValidForLanguage(providedTemplate, language)
   ) {
     return providedTemplate as TemplateKey;
   }
-  
-  const { template } = await inquirer.prompt([{
-    type: 'list',
-    name: 'template',
-    message: 'Choose a template:',
-    choices: getAvailableTemplatesForLanguage(language),
-  }]);
-  
+
+  const { template } = await inquirer.prompt([
+    {
+      type: "list",
+      name: "template",
+      message: "Choose a template:",
+      choices: getAvailableTemplatesForLanguage(language),
+    },
+  ]);
+
   return template as TemplateKey;
 }
 
@@ -171,154 +216,218 @@ async function promptForTemplate(
 async function prepareProjectDirectory(appPath: string): Promise<void> {
   // Check if directory exists
   if (fs.existsSync(appPath)) {
-    const { overwrite } = await inquirer.prompt([{
-      type: 'confirm',
-      name: 'overwrite',
-      message: `Directory ${path.basename(appPath)} already exists. Overwrite?`,
-      default: false
-    }]);
-    
+    const { overwrite } = await inquirer.prompt([
+      {
+        type: "confirm",
+        name: "overwrite",
+        message: `Directory ${path.basename(
+          appPath
+        )} already exists. Overwrite?`,
+        default: false,
+      },
+    ]);
+
     if (!overwrite) {
-      console.log(chalk.yellow('Operation cancelled.'));
+      console.log(chalk.yellow("Operation cancelled."));
       process.exit(0);
     }
-    
+
     fs.removeSync(appPath);
   }
-  
+
   fs.mkdirSync(appPath, { recursive: true });
 }
 
 // Copy template files to project directory
-function copyTemplateFiles(appPath: string, language: LanguageKey, template: TemplateKey): void {
+function copyTemplateFiles(
+  appPath: string,
+  language: LanguageKey,
+  template: TemplateKey
+): void {
   const templatePath = path.resolve(
     CONFIG.templateBasePath,
     language,
     template
   );
-  
+
   // Ensure the template exists
   if (!fs.existsSync(templatePath)) {
     throw new Error(`Template not found: ${templatePath}`);
   }
-  
+
   fs.copySync(templatePath, appPath);
 }
 
 // Set up project dependencies based on language
-async function setupDependencies(appPath: string, language: LanguageKey): Promise<void> {
+async function setupDependencies(
+  appPath: string,
+  language: LanguageKey
+): Promise<void> {
   const installCommand = CONFIG.installCommands[language];
-  const spinner = ora(`Setting up ${LANGUAGES[language].name} environment...`).start();
-  
+  const spinner = ora(
+    `Setting up ${LANGUAGES[language].name} environment...`
+  ).start();
+
   try {
-    execSync(installCommand, { cwd: appPath, stdio: 'pipe' });
-    spinner.succeed(`${LANGUAGES[language].name} environment set up successfully`);
+    execSync(installCommand, { cwd: appPath, stdio: "pipe" });
+    spinner.succeed(
+      `${LANGUAGES[language].name} environment set up successfully`
+    );
     return;
   } catch (error) {
     spinner.fail(`Failed to set up ${LANGUAGES[language].name} environment`);
     console.error(chalk.red(`Error: ${getErrorMessage(error)}`));
-    
+
     // Provide manual instructions
     if (language === LANGUAGE_TYPESCRIPT) {
-      console.log(chalk.yellow('\nPlease install dependencies manually:'));
+      console.log(chalk.yellow("\nPlease install dependencies manually:"));
       console.log(`  cd ${path.basename(appPath)}`);
-      console.log('  npm install');
+      console.log("  npm install");
     } else if (language === LANGUAGE_PYTHON) {
-      console.log(chalk.yellow('\nPlease install dependencies manually:'));
+      console.log(chalk.yellow("\nPlease install dependencies manually:"));
       console.log(`  cd ${path.basename(appPath)}`);
-      console.log('  uv venv && source .venv/bin/activate && uv sync');
+      console.log("  uv venv && source .venv/bin/activate && uv sync");
     }
   }
 }
 
 // Print success message with next steps
-function printNextSteps(appName: string, language: LanguageKey, template: TemplateKey): void {
+function printNextSteps(
+  appName: string,
+  language: LanguageKey,
+  template: TemplateKey
+): void {
   // Determine which sample command to show based on language and template
-  const deployCommand = language === LANGUAGE_TYPESCRIPT && template === TEMPLATE_SAMPLE_APP ? 'kernel deploy index.ts'
-  : language === LANGUAGE_TYPESCRIPT && template === TEMPLATE_STAGEHAND ? 'kernel deploy index.ts --env OPENAI_API_KEY=XXX'
-  : language === LANGUAGE_PYTHON && template === TEMPLATE_SAMPLE_APP ? 'kernel deploy main.py'
-  : language === LANGUAGE_PYTHON && template === TEMPLATE_BROWSER_USE ? 'kernel deploy main.py --env OPENAI_API_KEY=XXX'
-  : '';
-  
-
-  console.log(chalk.green(`
+  const deployCommand =
+    language === LANGUAGE_TYPESCRIPT && template === TEMPLATE_SAMPLE_APP
+      ? "kernel deploy index.ts"
+      : language === LANGUAGE_TYPESCRIPT && template === TEMPLATE_STAGEHAND
+      ? "kernel deploy index.ts --env OPENAI_API_KEY=XXX"
+      : language === LANGUAGE_PYTHON && template === TEMPLATE_SAMPLE_APP
+      ? "kernel deploy main.py"
+      : language === LANGUAGE_PYTHON && template === TEMPLATE_BROWSER_USE
+      ? "kernel deploy main.py --env OPENAI_API_KEY=XXX"
+      : "";
+
+  console.log(
+    chalk.green(`
 🎉 Kernel app created successfully!
 
 Next steps:
   cd ${appName}
   export KERNEL_API_KEY=<YOUR_API_KEY>
-  ${language === LANGUAGE_PYTHON ? 'uv venv && source .venv/bin/activate && uv sync' : ''}
+  ${
+    language === LANGUAGE_PYTHON
+      ? "uv venv && source .venv/bin/activate && uv sync"
+      : ""
+  }
   ${deployCommand}
-  ${INVOKE_SAMPLES[`${language}-${template}`]}
-  `));
+  ${INVOKE_SAMPLES[language][template]}
+  `)
+  );
 }
 
 // Main program
 const program = new Command();
 
 program
-  .name('create-kernel-app')
-  .description('Create a new Kernel application')
-  .version('0.1.0')
-  .argument('[app-name]', 'Name of your Kernel app')
-  .option('-l, --language <language>', `Programming language (${LANGUAGE_TYPESCRIPT}/${LANGUAGE_SHORTHAND_TS}, ${LANGUAGE_PYTHON}/${LANGUAGE_SHORTHAND_PY})`)
-  .option('-t, --template <template>', `Template type (${TEMPLATE_SAMPLE_APP}, ${TEMPLATE_BROWSER_USE}, ${TEMPLATE_STAGEHAND})`)
-  .action(async (appName: string, options: { language?: string; template?: string }) => {
-    try {
-      let normalizedLanguage: LanguageKey | null = null;
-      let normalizedTemplate: TemplateKey | null = null;
-      
-      // Try to normalize and validate language if provided
-      if (options.language?.toLowerCase()) {
-        normalizedLanguage = normalizeLanguage(options.language);
-        if (!normalizedLanguage) {
-          console.log(chalk.yellow(`\nInvalid language '${options.language}'. Please select a valid language.`));
+  .name("create-kernel-app")
+  .description("Create a new Kernel application")
+  .version("0.1.0")
+  .argument("[app-name]", "Name of your Kernel app")
+  .option(
+    "-l, --language <language>",
+    `Programming language (${LANGUAGE_TYPESCRIPT}/${LANGUAGE_SHORTHAND_TS}, ${LANGUAGE_PYTHON}/${LANGUAGE_SHORTHAND_PY})`
+  )
+  .option(
+    "-t, --template <template>",
+    `Template type (${TEMPLATE_SAMPLE_APP}, ${TEMPLATE_BROWSER_USE}, ${TEMPLATE_STAGEHAND})`
+  )
+  .action(
+    async (
+      appName: string,
+      options: { language?: string; template?: string }
+    ) => {
+      try {
+        let normalizedLanguage: LanguageKey | null = null;
+        let normalizedTemplate: TemplateKey | null = null;
+
+        // Try to normalize and validate language if provided
+        if (options.language?.toLowerCase()) {
+          normalizedLanguage = normalizeLanguage(options.language);
+          if (!normalizedLanguage) {
+            console.log(
+              chalk.yellow(
+                `\nInvalid language '${options.language}'. Please select a valid language.`
+              )
+            );
+          }
         }
-      }
-      
-      // Try to normalize and validate template if provided
-      if (options.template?.toLowerCase()) {
-        normalizedTemplate = options.template as TemplateKey;
-        if (!TEMPLATES[normalizedTemplate]) {
-          console.log(chalk.yellow(`\nInvalid template '${options.template}'. Please select a valid template.`));
-          normalizedTemplate = null;
+
+        // Try to normalize and validate template if provided
+        if (options.template?.toLowerCase()) {
+          normalizedTemplate = options.template as TemplateKey;
+          if (!TEMPLATES[normalizedTemplate]) {
+            console.log(
+              chalk.yellow(
+                `\nInvalid template '${options.template}'. Please select a valid template.`
+              )
+            );
+            normalizedTemplate = null;
+          }
         }
-      }
-      
-      // If both are provided, validate the combination
-      if (normalizedLanguage && normalizedTemplate) {
-        console.log(normalizedLanguage, normalizedTemplate);
-        const isValid = isTemplateValidForLanguage(normalizedTemplate, normalizedLanguage);
-        if (!isValid) {
-          const errorMessage =  `Template '${normalizedTemplate}' is not available for ${LANGUAGES[normalizedLanguage].name}. ` +
-            `This template is only available for: ${TEMPLATES[normalizedTemplate as TemplateKey].languages.map(l => LANGUAGES[l].name).join(', ')}` 
-          console.log(chalk.yellow(`\n${errorMessage}`));
-          // Reset both to force prompting
-          normalizedLanguage = null;
-          normalizedTemplate = null;
+
+        // If both are provided, validate the combination
+        if (normalizedLanguage && normalizedTemplate) {
+          console.log(normalizedLanguage, normalizedTemplate);
+          const isValid = isTemplateValidForLanguage(
+            normalizedTemplate,
+            normalizedLanguage
+          );
+          if (!isValid) {
+            const errorMessage =
+              `Template '${normalizedTemplate}' is not available for ${LANGUAGES[normalizedLanguage].name}. ` +
+              `This template is only available for: ${TEMPLATES[
+                normalizedTemplate as TemplateKey
+              ].languages
+                .map((l) => LANGUAGES[l].name)
+                .join(", ")}`;
+            console.log(chalk.yellow(`\n${errorMessage}`));
+            // Reset both to force prompting
+            normalizedLanguage = null;
+            normalizedTemplate = null;
+          }
         }
+
+        // Get user inputs (with prompts if needed)
+        const finalAppName = await promptForAppName(appName);
+        const language = await promptForLanguage(
+          normalizedLanguage || undefined
+        );
+        const template = await promptForTemplate(
+          language,
+          normalizedTemplate || undefined
+        );
+
+        const appPath = path.resolve(finalAppName);
+
+        // Set up the project
+        console.log(
+          chalk.blue(
+            `\nCreating a new ${LANGUAGES[language].name} ${TEMPLATES[template].name}\n`
+          )
+        );
+
+        await prepareProjectDirectory(appPath);
+        copyTemplateFiles(appPath, language, template);
+        await setupDependencies(appPath, language);
+        printNextSteps(finalAppName, language, template);
+      } catch (error: unknown) {
+        console.error(chalk.red("An error occurred:"));
+        console.error(getErrorMessage(error));
+        process.exit(1);
       }
-      
-      // Get user inputs (with prompts if needed)
-      const finalAppName = await promptForAppName(appName);
-      const language = await promptForLanguage(normalizedLanguage || undefined);
-      const template = await promptForTemplate(language, normalizedTemplate || undefined);
-      
-      const appPath = path.resolve(finalAppName);
-      
-      // Set up the project
-      console.log(chalk.blue(`\nCreating a new ${LANGUAGES[language].name} ${TEMPLATES[template].name}\n`));
-      
-      await prepareProjectDirectory(appPath);
-      copyTemplateFiles(appPath, language, template);
-      await setupDependencies(appPath, language);
-      printNextSteps(finalAppName, language, template);
-      
-    } catch (error: unknown) {
-      console.error(chalk.red('An error occurred:'));
-      console.error(getErrorMessage(error));
-      process.exit(1);
     }
-  });
+  );
 
-program.parse();
\ No newline at end of file
+program.parse();
diff --git a/templates/python/browser-use/pyproject.toml b/templates/python/browser-use/pyproject.toml
index 7f22f1f..2f5215e 100644
--- a/templates/python/browser-use/pyproject.toml
+++ b/templates/python/browser-use/pyproject.toml
@@ -6,7 +6,7 @@ readme = "README.md"
 requires-python = ">=3.11"
 dependencies = [
     "browser-use>=0.1.46",
-    "kernel==0.2.0",
+    "kernel==0.3.0",
     "langchain-openai>=0.3.11",
     "pydantic>=2.10.6",
 ]
diff --git a/templates/python/persistent-browser/.gitignore b/templates/python/persistent-browser/.gitignore
new file mode 100644
index 0000000..cd432d5
--- /dev/null
+++ b/templates/python/persistent-browser/.gitignore
@@ -0,0 +1,66 @@
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# Virtual Environment
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+activate/
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+.project
+.pydevproject
+.settings/
+
+# Testing
+.coverage
+htmlcov/
+.pytest_cache/
+.tox/
+.nox/
+coverage.xml
+*.cover
+.hypothesis/
+
+# Logs
+*.log
+logs/
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Misc
+.cache/
+.pytest_cache/
+.mypy_cache/
+.ruff_cache/
+.temp/
+.tmp/ 
\ No newline at end of file
diff --git a/templates/python/persistent-browser/README.md b/templates/python/persistent-browser/README.md
new file mode 100644
index 0000000..7203efe
--- /dev/null
+++ b/templates/python/persistent-browser/README.md
@@ -0,0 +1,5 @@
+# Kernel Python Persistent Browser Example
+
+This is a simple Kernel application that shows how to use a persistent browser.
+
+The action reuses the same browser across invocations of the action, which lets it optimize for the case where the browser is already open and at the page of interest.
diff --git a/templates/python/persistent-browser/main.py b/templates/python/persistent-browser/main.py
new file mode 100644
index 0000000..e64e2cf
--- /dev/null
+++ b/templates/python/persistent-browser/main.py
@@ -0,0 +1,73 @@
+import kernel
+from kernel import Kernel
+from playwright.async_api import async_playwright
+from typing import TypedDict
+from urllib.parse import urlparse
+from datetime import datetime
+
+client = Kernel()
+
+# Create a new Kernel app
+app = kernel.App("python-persistent-browser")
+
+class PageTitleInput(TypedDict):
+    url: str
+
+class PageTitleOutput(TypedDict):
+    title: str
+    elapsed_ms: float
+
+@app.action("get-page-title")
+async def get_page_title(ctx: kernel.KernelContext, input_data: PageTitleInput) -> PageTitleOutput:
+    """
+    A function that extracts the title of a webpage
+    
+    Args:
+        ctx: Kernel context containing invocation information
+        input_data: An object with a URL property
+        
+    Returns:
+        A dictionary containing the page title
+    """
+    url = input_data.get("url")
+    if not url or not isinstance(url, str):
+        raise ValueError("URL is required and must be a string")
+
+    # Add https:// if no protocol is present
+    if not url.startswith(('http://', 'https://')):
+        url = f"https://{url}"
+
+    # Validate the URL
+    try:
+        urlparse(url)
+    except Exception:
+        raise ValueError(f"Invalid URL: {url}")
+
+    # Create a browser instance using the context's invocation_id and a persistent id
+    kernel_browser = client.browsers.create(
+        invocation_id=ctx.invocation_id, 
+        persistence={"id": "my-awesome-persistent-browser-2"}
+    )
+    print("Kernel browser live view url: ", kernel_browser.browser_live_view_url)
+    
+    async with async_playwright() as playwright:
+        browser = await playwright.chromium.connect_over_cdp(kernel_browser.cdp_ws_url)
+        try:
+            now = datetime.now()
+            context = len(browser.contexts) > 0 and browser.contexts[0] or await browser.new_context()
+            page = len(context.pages) > 0 and context.pages[0] or await context.new_page()
+            current_url = page.url
+            print("Current url: ", current_url)
+            if current_url != url:
+                print("Not at url, navigating to it")
+                await page.goto(url)
+            else:
+                print("Already at url, skipping navigation")
+                # for some reason going straight to page.title() leads to an error: Page.title: Execution context was destroyed, most likely because of a navigation
+                # calling bring_to_front() seems to fix it :shrug:
+                await page.bring_to_front() 
+            title = await page.title()
+            elapsedMilliseconds = (datetime.now() - now).total_seconds() * 1000
+            return {"title": title, "elapsed_ms": elapsedMilliseconds}
+        finally:
+            await browser.close()
diff --git a/templates/python/persistent-browser/pyproject.toml b/templates/python/persistent-browser/pyproject.toml
new file mode 100644
index 0000000..a20fd38
--- /dev/null
+++ b/templates/python/persistent-browser/pyproject.toml
@@ -0,0 +1,10 @@
+[project]
+name = "persistent-browser"
+version = "0.1.0"
+description = "Basic Kernel application that demonstrates the use of persistent browsers"
+readme = "README.md"
+requires-python = ">=3.11"
+dependencies = ["kernel==0.3.0", "playwright>=1.52.0"]
+
+[dependency-groups]
+dev = ["mypy>=1.15.0"]
diff --git a/templates/python/persistent-browser/uv.lock b/templates/python/persistent-browser/uv.lock
new file mode 100644
index 0000000..e7339b6
--- /dev/null
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+sdist = { url = "https://files.pythonhosted.org/packages/f6/37/23083fcd6e35492953e8d2aaaa68b860eb422b34627b13f2ce3eb6106061/typing_extensions-4.13.2.tar.gz", hash = "sha256:e6c81219bd689f51865d9e372991c540bda33a0379d5573cddb9a3a23f7caaef", size = 106967 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/8b/54/b1ae86c0973cc6f0210b53d508ca3641fb6d0c56823f288d108bc7ab3cc8/typing_extensions-4.13.2-py3-none-any.whl", hash = "sha256:a439e7c04b49fec3e5d3e2beaa21755cadbbdc391694e28ccdd36ca4a1408f8c", size = 45806 },
+]
+
+[[package]]
+name = "typing-inspection"
+version = "0.4.0"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "typing-extensions" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/82/5c/e6082df02e215b846b4b8c0b887a64d7d08ffaba30605502639d44c06b82/typing_inspection-0.4.0.tar.gz", hash = "sha256:9765c87de36671694a67904bf2c96e395be9c6439bb6c87b5142569dcdd65122", size = 76222 }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/31/08/aa4fdfb71f7de5176385bd9e90852eaf6b5d622735020ad600f2bab54385/typing_inspection-0.4.0-py3-none-any.whl", hash = "sha256:50e72559fcd2a6367a19f7a7e610e6afcb9fac940c650290eed893d61386832f", size = 14125 },
+]
diff --git a/templates/python/sample-app/pyproject.toml b/templates/python/sample-app/pyproject.toml
index c7be9e7..f131a77 100644
--- a/templates/python/sample-app/pyproject.toml
+++ b/templates/python/sample-app/pyproject.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 description = "Kernel application template - Python"
 readme = "README.md"
 requires-python = ">=3.11"
-dependencies = ["kernel==0.2.0", "playwright>=1.52.0"]
+dependencies = ["kernel==0.3.0", "playwright>=1.52.0"]
 
 [dependency-groups]
 dev = ["mypy>=1.15.0"]
diff --git a/templates/typescript/persistent-browser/.gitignore b/templates/typescript/persistent-browser/.gitignore
new file mode 100644
index 0000000..9325515
--- /dev/null
+++ b/templates/typescript/persistent-browser/.gitignore
@@ -0,0 +1,39 @@
+# Dependencies
+node_modules/
+package-lock.json
+
+# TypeScript
+*.tsbuildinfo
+dist/
+build/
+
+# Environment
+.env
+.env.local
+.env.*.local
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Logs
+logs/
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Testing
+coverage/
+.nyc_output/
+
+# Misc
+.cache/
+.temp/
+.tmp/ 
\ No newline at end of file
diff --git a/templates/typescript/persistent-browser/README.md b/templates/typescript/persistent-browser/README.md
new file mode 100644
index 0000000..b87a56e
--- /dev/null
+++ b/templates/typescript/persistent-browser/README.md
@@ -0,0 +1,5 @@
+# Kernel Typscript Persistent Browser Example
+
+This is a simple Kernel application that extracts the title from a webpage, but uses a persistent browser to avoid navigations on subsequent invocations.
+
+See the [docs](https://docs.onkernel.com/quickstart) for information.
diff --git a/templates/typescript/persistent-browser/index.ts b/templates/typescript/persistent-browser/index.ts
new file mode 100644
index 0000000..6c67cc4
--- /dev/null
+++ b/templates/typescript/persistent-browser/index.ts
@@ -0,0 +1,80 @@
+import { Kernel, type KernelContext } from "@onkernel/sdk";
+import { chromium, type BrowserContext, type Page } from "playwright";
+
+const kernel = new Kernel();
+
+const app = kernel.app("ts-persistent-browser");
+
+interface PageTitleInput {
+  url: string;
+}
+
+interface PageTitleOutput {
+  title: string;
+  elapsed_ms: number;
+}
+
+app.action<PageTitleInput, PageTitleOutput>(
+  "get-page-title",
+  async (
+    ctx: KernelContext,
+    payload?: PageTitleInput
+  ): Promise<PageTitleOutput> => {
+    // A function that extracts the title of a webpage
+
+    // Args:
+    //     ctx: Kernel context containing invocation information
+    //     payload: An object with a URL property
+
+    // Returns:
+    //     A dictionary containing the page title
+    if (!payload?.url) {
+      throw new Error("URL is required");
+    }
+
+    if (
+      !payload.url.startsWith("http://") &&
+      !payload.url.startsWith("https://")
+    ) {
+      payload.url = `https://${payload.url}`;
+    }
+
+    // Validate the URL
+    try {
+      new URL(payload.url);
+    } catch {
+      throw new Error(`Invalid URL: ${payload.url}`);
+    }
+
+    const kernelBrowser = await kernel.browsers.create({
+      invocation_id: ctx.invocation_id,
+      persistence: {
+        id: "ts-persistent-browser",
+      },
+    });
+
+    console.log(
+      "Kernel browser live view url: ",
+      kernelBrowser.browser_live_view_url
+    );
+
+    const browser = await chromium.connectOverCDP(kernelBrowser.cdp_ws_url);
+    try {
+      const now = Date.now();
+      const contexts = await browser.contexts();
+      let context: BrowserContext = contexts[0] ?? (await browser.newContext());
+      let page: Page = context.pages()[0] ?? (await context.newPage());
+      if (page.url() !== payload.url) {
+        console.log("navigating to", payload.url);
+        await page.goto(payload.url);
+      } else {
+        console.log("page already loaded, skipping navigation");
+        await page.bringToFront();
+      }
+      const title = await page.title();
+      return { title, elapsed_ms: Date.now() - now };
+    } finally {
+      await browser.close();
+    }
+  }
+);
diff --git a/templates/typescript/persistent-browser/package.json b/templates/typescript/persistent-browser/package.json
new file mode 100644
index 0000000..55eb6f1
--- /dev/null
+++ b/templates/typescript/persistent-browser/package.json
@@ -0,0 +1,14 @@
+{
+    "name": "ts-basic",
+    "module": "index.ts",
+    "type": "module",
+    "private": true,
+    "peerDependencies": {
+      "typescript": "^5"
+    },
+    "dependencies": {
+      "@onkernel/sdk": "0.3.0",
+      "playwright": "^1.52.0"
+    }
+  }
+  
\ No newline at end of file
diff --git a/templates/typescript/persistent-browser/pnpm-lock.yaml b/templates/typescript/persistent-browser/pnpm-lock.yaml
new file mode 100644
index 0000000..6bf9b76
--- /dev/null
+++ b/templates/typescript/persistent-browser/pnpm-lock.yaml
@@ -0,0 +1,61 @@
+lockfileVersion: '9.0'
+
+settings:
+  autoInstallPeers: true
+  excludeLinksFromLockfile: false
+
+importers:
+
+  .:
+    dependencies:
+      '@onkernel/sdk':
+        specifier: 0.3.0
+        version: 0.3.0
+      playwright:
+        specifier: ^1.52.0
+        version: 1.52.0
+      typescript:
+        specifier: ^5
+        version: 5.8.3
+
+packages:
+
+  '@onkernel/sdk@0.3.0':
+    resolution: {integrity: sha512-15hL/6qqM+wA63cR5O8dtUdOBtcPmOZylB2zgq7q2nGJrqzCS99M2onyrjV31CDLowf9bmnHHjXMLzWvcO7L0g==}
+
+  fsevents@2.3.2:
+    resolution: {integrity: sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==}
+    engines: {node: ^8.16.0 || ^10.6.0 || >=11.0.0}
+    os: [darwin]
+
+  playwright-core@1.52.0:
+    resolution: {integrity: sha512-l2osTgLXSMeuLZOML9qYODUQoPPnUsKsb5/P6LJ2e6uPKXUdPK5WYhN4z03G+YNbWmGDY4YENauNu4ZKczreHg==}
+    engines: {node: '>=18'}
+    hasBin: true
+
+  playwright@1.52.0:
+    resolution: {integrity: sha512-JAwMNMBlxJ2oD1kce4KPtMkDeKGHQstdpFPcPH3maElAXon/QZeTvtsfXmTMRyO9TslfoYOXkSsvao2nE1ilTw==}
+    engines: {node: '>=18'}
+    hasBin: true
+
+  typescript@5.8.3:
+    resolution: {integrity: sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==}
+    engines: {node: '>=14.17'}
+    hasBin: true
+
+snapshots:
+
+  '@onkernel/sdk@0.3.0': {}
+
+  fsevents@2.3.2:
+    optional: true
+
+  playwright-core@1.52.0: {}
+
+  playwright@1.52.0:
+    dependencies:
+      playwright-core: 1.52.0
+    optionalDependencies:
+      fsevents: 2.3.2
+
+  typescript@5.8.3: {}
diff --git a/templates/typescript/persistent-browser/tsconfig.json b/templates/typescript/persistent-browser/tsconfig.json
new file mode 100644
index 0000000..39959d0
--- /dev/null
+++ b/templates/typescript/persistent-browser/tsconfig.json
@@ -0,0 +1,31 @@
+{
+  "compilerOptions": {
+    // Environment setup & latest features
+    "lib": ["ESNext", "DOM"],
+    "target": "ESNext",
+    "module": "ESNext",
+    "moduleDetection": "force",
+    "jsx": "react-jsx",
+    "allowJs": true,
+
+    // Bundler mode
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "noEmit": true,
+
+    // Best practices
+    "strict": true,
+    "skipLibCheck": true,
+    "noFallthroughCasesInSwitch": true,
+    "noUncheckedIndexedAccess": true,
+
+    // Some stricter flags (disabled by default)
+    "noUnusedLocals": false,
+    "noUnusedParameters": false,
+    "noPropertyAccessFromIndexSignature": false
+  },
+  "include": ["./**/*.ts", "./**/*.tsx"],
+  "exclude": ["node_modules", "dist"]
+}
+  
\ No newline at end of file
diff --git a/templates/typescript/sample-app/package.json b/templates/typescript/sample-app/package.json
index 6f5e494..55eb6f1 100644
--- a/templates/typescript/sample-app/package.json
+++ b/templates/typescript/sample-app/package.json
@@ -7,7 +7,7 @@
       "typescript": "^5"
     },
     "dependencies": {
-      "@onkernel/sdk": "0.2.0",
+      "@onkernel/sdk": "0.3.0",
       "playwright": "^1.52.0"
     }
   }
diff --git a/templates/typescript/stagehand/package.json b/templates/typescript/stagehand/package.json
index 14b1465..1d6985e 100644
--- a/templates/typescript/stagehand/package.json
+++ b/templates/typescript/stagehand/package.json
@@ -8,7 +8,7 @@
     },
     "dependencies": {
         "@browserbasehq/stagehand": "^2.2.1",
-        "@onkernel/sdk": "0.2.0",
+        "@onkernel/sdk": "0.3.0",
         "zod": "^3.25.7"
     }
 }