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telegram-mini-app

Expert in building Telegram Mini Apps (TWA) - web apps that run

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Install

skills CLI npx skills add https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/telegram-mini-app
Claude Code claude plugin marketplace add https://llmmart.ai/marketplace.json && claude plugin install sickn33-agentic-awesome-skills@llmmart
Git git clone https://github.com/sickn33/agentic-awesome-skills.git

The skills CLI installs just this skill, for any of its supported agents. Claude Code installs the whole sickn33/agentic-awesome-skills collection as a plugin from our marketplace. Git is the plain clone.

Skill manifest

Telegram Mini App

Expert in building Telegram Mini Apps (TWA) - web apps that run inside Telegram with native-like experience. Covers the TON ecosystem, Telegram Web App API, payments, user authentication, and building viral mini apps that monetize.

Role: Telegram Mini App Architect

You build apps where 800M+ Telegram users already are. You understand the Mini App ecosystem is exploding - games, DeFi, utilities, social apps. You know TON blockchain and how to monetize with crypto. You design for the Telegram UX paradigm, not traditional web.

Expertise

  • Telegram Web App API
  • TON blockchain
  • Mini App UX
  • TON Connect
  • Viral mechanics
  • Crypto payments

Capabilities

  • Telegram Web App API
  • Mini App architecture
  • TON Connect integration
  • In-app payments
  • User authentication via Telegram
  • Mini App UX patterns
  • Viral Mini App mechanics
  • TON blockchain integration

Patterns

Mini App Setup

Getting started with Telegram Mini Apps

When to use: When starting a new Mini App

Mini App Setup

Basic Structure

<!DOCTYPE html>
<html>
<head>
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <script src="https://telegram.org/js/telegram-web-app.js"></script>
</head>
<body>
  <script>
    const tg = window.Telegram.WebApp;
    tg.ready();
    tg.expand();

    // User data
    const user = tg.initDataUnsafe.user;
    console.log(user.first_name, user.id);
  </script>
</body>
</html>

React Setup

// hooks/useTelegram.js
export function useTelegram() {
  const tg = window.Telegram?.WebApp;

  return {
    tg,
    user: tg?.initDataUnsafe?.user,
    queryId: tg?.initDataUnsafe?.query_id,
    expand: () => tg?.expand(),
    close: () => tg?.close(),
    ready: () => tg?.ready(),
  };
}

// App.jsx
function App() {
  const { tg, user, expand, ready } = useTelegram();

  useEffect(() => {
    ready();
    expand();
  }, []);

  return <div>Hello, {user?.first_name}</div>;
}

Bot Integration

// Bot sends Mini App
bot.command('app', (ctx) => {
  ctx.reply('Open the app:', {
    reply_markup: {
      inline_keyboard: [[
        { text: '🚀 Open App', web_app: { url: 'https://your-app.com' } }
      ]]
    }
  });
});

TON Connect Integration

Wallet connection for TON blockchain

When to use: When building Web3 Mini Apps

TON Connect Integration

Setup

npm install @tonconnect/ui-react

React Integration

import { TonConnectUIProvider, TonConnectButton } from '@tonconnect/ui-react';

// Wrap app
function App() {
  return (
    <TonConnectUIProvider manifestUrl="https://your-app.com/tonconnect-manifest.json">
      <MainApp />
    </TonConnectUIProvider>
  );
}

// Use in components
function WalletSection() {
  return (
    <TonConnectButton />
  );
}

Manifest File

{
  "url": "https://your-app.com",
  "name": "Your Mini App",
  "iconUrl": "https://your-app.com/icon.png"
}

Send TON Transaction

import { useTonConnectUI } from '@tonconnect/ui-react';

function PaymentButton({ amount, to }) {
  const [tonConnectUI] = useTonConnectUI();

  const handlePay = async () => {
    const transaction = {
      validUntil: Math.floor(Date.now() / 1000) + 60,
      messages: [{
        address: to,
        amount: (amount * 1e9).toString(), // TON to nanoton
      }]
    };

    await tonConnectUI.sendTransaction(transaction);
  };

  return <button onClick={handlePay}>Pay {amount} TON</button>;
}

Mini App Monetization

Making money from Mini Apps

When to use: When planning Mini App revenue

Mini App Monetization

Revenue Streams

Model Example Potential
TON payments Premium features High
In-app purchases Virtual goods High
Ads (Telegram Ads) Display ads Medium
Referral Share to earn Medium
NFT sales Digital collectibles High

Telegram Stars (New!)

// In your bot
bot.command('premium', (ctx) => {
  ctx.replyWithInvoice({
    title: 'Premium Access',
    description: 'Unlock all features',
    payload: 'premium',
    provider_token: '', // Empty for Stars
    currency: 'XTR', // Telegram Stars
    prices: [{ label: 'Premium', amount: 100 }], // 100 Stars
  });
});

Viral Mechanics

// Referral system
function ReferralShare() {
  const { tg, user } = useTelegram();
  const referralLink = `https://t.me/your_bot?start=ref_${user.id}`;

  const share = () => {
    tg.openTelegramLink(
      `https://t.me/share/url?url=${encodeURIComponent(referralLink)}&text=Check this out!`
    );
  };

  return <button onClick={share}>Invite Friends (+10 coins)</button>;
}

Gamification for Retention

  • Daily rewards
  • Streak bonuses
  • Leaderboards
  • Achievement badges
  • Referral bonuses

Mini App UX Patterns

UX specific to Telegram Mini Apps

When to use: When designing Mini App interfaces

Mini App UX

Platform Conventions

Element Implementation
Main Button tg.MainButton
Back Button tg.BackButton
Theme tg.themeParams
Haptics tg.HapticFeedback

Main Button

const tg = window.Telegram.WebApp;

// Show main button
tg.MainButton.setText('Continue');
tg.MainButton.show();
tg.MainButton.onClick(() => {
  // Handle click
  submitForm();
});

// Loading state
tg.MainButton.showProgress();
// ...
tg.MainButton.hideProgress();

Theme Adaptation

:root {
  --tg-theme-bg-color: var(--tg-theme-bg-color, #ffffff);
  --tg-theme-text-color: var(--tg-theme-text-color, #000000);
  --tg-theme-button-color: var(--tg-theme-button-color, #3390ec);
}

body {
  background: var(--tg-theme-bg-color);
  color: var(--tg-theme-text-color);
}

Haptic Feedback

// Light feedback
tg.HapticFeedback.impactOccurred('light');

// Success
tg.HapticFeedback.notificationOccurred('success');

// Selection
tg.HapticFeedback.selectionChanged();

Sharp Edges

Not validating initData from Telegram

Severity: HIGH

Situation: Backend trusts user data without verification

Symptoms:

  • Trusting client data blindly
  • No server-side validation
  • Using initDataUnsafe directly
  • Security audit failures

Why this breaks: initData can be spoofed. Security vulnerability. Users can impersonate others. Data tampering possible.

Recommended fix:

Validating initData

Why Validate

  • initData contains user info
  • Must verify it came from Telegram
  • Prevent spoofing/tampering

Node.js Validation

import crypto from 'crypto';

function validateInitData(initData, botToken) {
  const params = new URLSearchParams(initData);
  const hash = params.get('hash');
  params.delete('hash');

  // Sort and join
  const dataCheckString = Array.from(params.entries())
    .sort(([a], [b]) => a.localeCompare(b))
    .map(([k, v]) => `${k}=${v}`)
    .join('\n');

  // Create secret key
  const secretKey = crypto
    .createHmac('sha256', 'WebAppData')
    .update(botToken)
    .digest();

  // Calculate hash
  const calculatedHash = crypto
    .createHmac('sha256', secretKey)
    .update(dataCheckString)
    .digest('hex');

  return calculatedHash === hash;
}

Using in API

app.post('/api/action', (req, res) => {
  const { initData } = req.body;

  if (!validateInitData(initData, process.env.BOT_TOKEN)) {
    return res.status(401).json({ error: 'Invalid initData' });
  }

  // Safe to use data
  const params = new URLSearchParams(initData);
  const user = JSON.parse(params.get('user'));
  // ...
});

TON Connect not working on mobile

Severity: HIGH

Situation: Wallet connection fails on mobile Telegram

Symptoms:

  • Works on desktop, fails mobile
  • Wallet app doesn't open
  • Connection stuck
  • Users can't pay

Why this breaks: Deep linking issues. Wallet app not opening. Return URL problems. Different behavior iOS vs Android.

Recommended fix:

TON Connect Mobile Issues

Common Problems

  1. Wallet doesn't open
  2. Return to Mini App fails
  3. Transaction confirmation lost

Fixes

// Use correct manifest
const manifestUrl = 'https://your-domain.com/tonconnect-manifest.json';

// Ensure HTTPS
// Localhost won't work on mobile

// Handle connection states
const [tonConnectUI] = useTonConnectUI();

useEffect(() => {
  return tonConnectUI.onStatusChange((wallet) => {
    if (wallet) {
      console.log('Connected:', wallet.account.address);
    }
  });
}, []);

Testing

  • Test on real devices
  • Test with multiple wallets (Tonkeeper, OpenMask)
  • Test both iOS and Android
  • Use ngrok for local dev + mobile test

Fallback

// Show QR for desktop
// Show wallet list for mobile
<TonConnectButton />
// Automatically handles this

Mini App feels slow and janky

Severity: MEDIUM

Situation: App lags, slow transitions, poor UX

Symptoms:

  • Slow initial load
  • Laggy interactions
  • Users complaining about speed
  • High bounce rate

Why this breaks: Too much JavaScript. No code splitting. Large bundle size. No loading optimization.

Recommended fix:

Mini App Performance

Bundle Size

  • Target < 200KB gzipped
  • Use code splitting
  • Lazy load routes
  • Tree shake dependencies

Quick Wins

// Lazy load heavy components
const HeavyChart = lazy(() => import('./HeavyChart'));

// Optimize images
<img loading="lazy" src="..." />

// Use CSS instead of JS animations

Loading Strategy

function App() {
  const [ready, setReady] = useState(false);

  useEffect(() => {
    // Show skeleton immediately
    // Load data in background
    Promise.all([
      loadUserData(),
      loadAppConfig(),
    ]).then(() => setReady(true));
  }, []);

  if (!ready) return <Skeleton />;
  return <MainApp />;
}

Vite Optimization

// vite.config.js
export default {
  build: {
    rollupOptions: {
      output: {
        manualChunks: {
          vendor: ['react', 'react-dom'],
        }
      }
    }
  }
};

Custom buttons instead of MainButton

Severity: MEDIUM

Situation: App has custom submit buttons that feel non-native

Symptoms:

  • Custom submit buttons
  • MainButton never used
  • Inconsistent UX
  • Users confused about actions

Why this breaks: MainButton is expected UX. Custom buttons feel foreign. Inconsistent with Telegram. Users don't know what to tap.

Recommended fix:

Using MainButton Properly

When to Use MainButton

  • Form submission
  • Primary actions
  • Continue/Next flows
  • Checkout/Payment

Implementation

const tg = window.Telegram.WebApp;

// Show for forms
function showMainButton(text, onClick) {
  tg.MainButton.setText(text);
  tg.MainButton.onClick(onClick);
  tg.MainButton.show();
}

// Hide when not needed
function hideMainButton() {
  tg.MainButton.hide();
  tg.MainButton.offClick();
}

// Loading state
function setMainButtonLoading(loading) {
  if (loading) {
    tg.MainButton.showProgress();
    tg.MainButton.disable();
  } else {
    tg.MainButton.hideProgress();
    tg.MainButton.enable();
  }
}

React Hook

function useMainButton(text, onClick, visible = true) {
  const tg = window.Telegram?.WebApp;

  useEffect(() => {
    if (!tg) return;

    if (visible) {
      tg.MainButton.setText(text);
      tg.MainButton.onClick(onClick);
      tg.MainButton.show();
    } else {
      tg.MainButton.hide();
    }

    return () => {
      tg.MainButton.offClick(onClick);
    };
  }, [text, onClick, visible]);
}

Validation Checks

No initData Validation

Severity: HIGH

Message: Not validating initData - security vulnerability.

Fix action: Implement server-side initData validation with hash verification

Missing Telegram Web App Script

Severity: HIGH

Message: Telegram Web App script not included.

Fix action: Add

Not Calling tg.ready()

Severity: MEDIUM

Message: Not calling tg.ready() - Telegram may show loading state.

Fix action: Call window.Telegram.WebApp.ready() when app is ready

Not Using Telegram Theme

Severity: MEDIUM

Message: Not adapting to Telegram theme colors.

Fix action: Use CSS variables from tg.themeParams for colors

Missing Viewport Meta Tag

Severity: MEDIUM

Message: Missing viewport meta tag for mobile.

Fix action: Add

Collaboration

Delegation Triggers

  • bot|command|handler -> telegram-bot-builder (Bot integration)
  • TON|smart contract|blockchain -> blockchain-defi (TON blockchain features)
  • react|vue|frontend -> frontend (Frontend framework)
  • viral|referral|share -> viral-generator-builder (Viral mechanics)
  • game|gamification -> gamification-loops (Game mechanics)

Tap-to-Earn Game

Skills: telegram-mini-app, gamification-loops, telegram-bot-builder

Workflow:

1. Design game mechanics
2. Build Mini App with tap mechanics
3. Add referral/viral features
4. Integrate TON payments
5. Bot for notifications/onboarding
6. Launch and grow

DeFi Mini App

Skills: telegram-mini-app, blockchain-defi, frontend

Workflow:

1. Design DeFi feature (swap, stake, etc.)
2. Integrate TON Connect
3. Build transaction UI
4. Add wallet management
5. Implement security measures
6. Deploy and audit

Related Skills

Works well with: telegram-bot-builder, frontend, blockchain-defi, viral-generator-builder

When to Use

  • User mentions or implies: telegram mini app
  • User mentions or implies: TWA
  • User mentions or implies: telegram web app
  • User mentions or implies: TON app
  • User mentions or implies: mini app

Limitations

  • Use this skill only when the task clearly matches the scope described above.
  • Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
  • Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.
Files (agentic-awesome-skills)
  • SKILL.md 14 KB
    ---
    name: telegram-mini-app
    description: Expert in building Telegram Mini Apps (TWA) - web apps that run
      inside Telegram with native-like experience. Covers the TON ecosystem,
      Telegram Web App API, payments, user authentication, and building viral mini
      apps that monetize.
    risk: critical
    source: vibeship-spawner-skills (Apache 2.0)
    date_added: 2026-02-27
    ---
    
    # Telegram Mini App
    
    Expert in building Telegram Mini Apps (TWA) - web apps that run inside Telegram
    with native-like experience. Covers the TON ecosystem, Telegram Web App API,
    payments, user authentication, and building viral mini apps that monetize.
    
    **Role**: Telegram Mini App Architect
    
    You build apps where 800M+ Telegram users already are. You understand
    the Mini App ecosystem is exploding - games, DeFi, utilities, social
    apps. You know TON blockchain and how to monetize with crypto. You
    design for the Telegram UX paradigm, not traditional web.
    
    ### Expertise
    
    - Telegram Web App API
    - TON blockchain
    - Mini App UX
    - TON Connect
    - Viral mechanics
    - Crypto payments
    
    ## Capabilities
    
    - Telegram Web App API
    - Mini App architecture
    - TON Connect integration
    - In-app payments
    - User authentication via Telegram
    - Mini App UX patterns
    - Viral Mini App mechanics
    - TON blockchain integration
    
    ## Patterns
    
    ### Mini App Setup
    
    Getting started with Telegram Mini Apps
    
    **When to use**: When starting a new Mini App
    
    ## Mini App Setup
    
    ### Basic Structure
    ```html
    <!DOCTYPE html>
    <html>
    <head>
      <meta name="viewport" content="width=device-width, initial-scale=1.0">
      <script src="https://telegram.org/js/telegram-web-app.js"></script>
    </head>
    <body>
      <script>
        const tg = window.Telegram.WebApp;
        tg.ready();
        tg.expand();
    
        // User data
        const user = tg.initDataUnsafe.user;
        console.log(user.first_name, user.id);
      </script>
    </body>
    </html>
    ```
    
    ### React Setup
    ```jsx
    // hooks/useTelegram.js
    export function useTelegram() {
      const tg = window.Telegram?.WebApp;
    
      return {
        tg,
        user: tg?.initDataUnsafe?.user,
        queryId: tg?.initDataUnsafe?.query_id,
        expand: () => tg?.expand(),
        close: () => tg?.close(),
        ready: () => tg?.ready(),
      };
    }
    
    // App.jsx
    function App() {
      const { tg, user, expand, ready } = useTelegram();
    
      useEffect(() => {
        ready();
        expand();
      }, []);
    
      return <div>Hello, {user?.first_name}</div>;
    }
    ```
    
    ### Bot Integration
    ```javascript
    // Bot sends Mini App
    bot.command('app', (ctx) => {
      ctx.reply('Open the app:', {
        reply_markup: {
          inline_keyboard: [[
            { text: '🚀 Open App', web_app: { url: 'https://your-app.com' } }
          ]]
        }
      });
    });
    ```
    
    ### TON Connect Integration
    
    Wallet connection for TON blockchain
    
    **When to use**: When building Web3 Mini Apps
    
    ## TON Connect Integration
    
    ### Setup
    ```bash
    npm install @tonconnect/ui-react
    ```
    
    ### React Integration
    ```jsx
    import { TonConnectUIProvider, TonConnectButton } from '@tonconnect/ui-react';
    
    // Wrap app
    function App() {
      return (
        <TonConnectUIProvider manifestUrl="https://your-app.com/tonconnect-manifest.json">
          <MainApp />
        </TonConnectUIProvider>
      );
    }
    
    // Use in components
    function WalletSection() {
      return (
        <TonConnectButton />
      );
    }
    ```
    
    ### Manifest File
    ```json
    {
      "url": "https://your-app.com",
      "name": "Your Mini App",
      "iconUrl": "https://your-app.com/icon.png"
    }
    ```
    
    ### Send TON Transaction
    ```jsx
    import { useTonConnectUI } from '@tonconnect/ui-react';
    
    function PaymentButton({ amount, to }) {
      const [tonConnectUI] = useTonConnectUI();
    
      const handlePay = async () => {
        const transaction = {
          validUntil: Math.floor(Date.now() / 1000) + 60,
          messages: [{
            address: to,
            amount: (amount * 1e9).toString(), // TON to nanoton
          }]
        };
    
        await tonConnectUI.sendTransaction(transaction);
      };
    
      return <button onClick={handlePay}>Pay {amount} TON</button>;
    }
    ```
    
    ### Mini App Monetization
    
    Making money from Mini Apps
    
    **When to use**: When planning Mini App revenue
    
    ## Mini App Monetization
    
    ### Revenue Streams
    | Model | Example | Potential |
    |-------|---------|-----------|
    | TON payments | Premium features | High |
    | In-app purchases | Virtual goods | High |
    | Ads (Telegram Ads) | Display ads | Medium |
    | Referral | Share to earn | Medium |
    | NFT sales | Digital collectibles | High |
    
    ### Telegram Stars (New!)
    ```javascript
    // In your bot
    bot.command('premium', (ctx) => {
      ctx.replyWithInvoice({
        title: 'Premium Access',
        description: 'Unlock all features',
        payload: 'premium',
        provider_token: '', // Empty for Stars
        currency: 'XTR', // Telegram Stars
        prices: [{ label: 'Premium', amount: 100 }], // 100 Stars
      });
    });
    ```
    
    ### Viral Mechanics
    ```jsx
    // Referral system
    function ReferralShare() {
      const { tg, user } = useTelegram();
      const referralLink = `https://t.me/your_bot?start=ref_${user.id}`;
    
      const share = () => {
        tg.openTelegramLink(
          `https://t.me/share/url?url=${encodeURIComponent(referralLink)}&text=Check this out!`
        );
      };
    
      return <button onClick={share}>Invite Friends (+10 coins)</button>;
    }
    ```
    
    ### Gamification for Retention
    - Daily rewards
    - Streak bonuses
    - Leaderboards
    - Achievement badges
    - Referral bonuses
    
    ### Mini App UX Patterns
    
    UX specific to Telegram Mini Apps
    
    **When to use**: When designing Mini App interfaces
    
    ## Mini App UX
    
    ### Platform Conventions
    | Element | Implementation |
    |---------|----------------|
    | Main Button | tg.MainButton |
    | Back Button | tg.BackButton |
    | Theme | tg.themeParams |
    | Haptics | tg.HapticFeedback |
    
    ### Main Button
    ```javascript
    const tg = window.Telegram.WebApp;
    
    // Show main button
    tg.MainButton.setText('Continue');
    tg.MainButton.show();
    tg.MainButton.onClick(() => {
      // Handle click
      submitForm();
    });
    
    // Loading state
    tg.MainButton.showProgress();
    // ...
    tg.MainButton.hideProgress();
    ```
    
    ### Theme Adaptation
    ```css
    :root {
      --tg-theme-bg-color: var(--tg-theme-bg-color, #ffffff);
      --tg-theme-text-color: var(--tg-theme-text-color, #000000);
      --tg-theme-button-color: var(--tg-theme-button-color, #3390ec);
    }
    
    body {
      background: var(--tg-theme-bg-color);
      color: var(--tg-theme-text-color);
    }
    ```
    
    ### Haptic Feedback
    ```javascript
    // Light feedback
    tg.HapticFeedback.impactOccurred('light');
    
    // Success
    tg.HapticFeedback.notificationOccurred('success');
    
    // Selection
    tg.HapticFeedback.selectionChanged();
    ```
    
    ## Sharp Edges
    
    ### Not validating initData from Telegram
    
    Severity: HIGH
    
    Situation: Backend trusts user data without verification
    
    Symptoms:
    - Trusting client data blindly
    - No server-side validation
    - Using initDataUnsafe directly
    - Security audit failures
    
    Why this breaks:
    initData can be spoofed.
    Security vulnerability.
    Users can impersonate others.
    Data tampering possible.
    
    Recommended fix:
    
    ## Validating initData
    
    ### Why Validate
    - initData contains user info
    - Must verify it came from Telegram
    - Prevent spoofing/tampering
    
    ### Node.js Validation
    ```javascript
    import crypto from 'crypto';
    
    function validateInitData(initData, botToken) {
      const params = new URLSearchParams(initData);
      const hash = params.get('hash');
      params.delete('hash');
    
      // Sort and join
      const dataCheckString = Array.from(params.entries())
        .sort(([a], [b]) => a.localeCompare(b))
        .map(([k, v]) => `${k}=${v}`)
        .join('\n');
    
      // Create secret key
      const secretKey = crypto
        .createHmac('sha256', 'WebAppData')
        .update(botToken)
        .digest();
    
      // Calculate hash
      const calculatedHash = crypto
        .createHmac('sha256', secretKey)
        .update(dataCheckString)
        .digest('hex');
    
      return calculatedHash === hash;
    }
    ```
    
    ### Using in API
    ```javascript
    app.post('/api/action', (req, res) => {
      const { initData } = req.body;
    
      if (!validateInitData(initData, process.env.BOT_TOKEN)) {
        return res.status(401).json({ error: 'Invalid initData' });
      }
    
      // Safe to use data
      const params = new URLSearchParams(initData);
      const user = JSON.parse(params.get('user'));
      // ...
    });
    ```
    
    ### TON Connect not working on mobile
    
    Severity: HIGH
    
    Situation: Wallet connection fails on mobile Telegram
    
    Symptoms:
    - Works on desktop, fails mobile
    - Wallet app doesn't open
    - Connection stuck
    - Users can't pay
    
    Why this breaks:
    Deep linking issues.
    Wallet app not opening.
    Return URL problems.
    Different behavior iOS vs Android.
    
    Recommended fix:
    
    ## TON Connect Mobile Issues
    
    ### Common Problems
    1. Wallet doesn't open
    2. Return to Mini App fails
    3. Transaction confirmation lost
    
    ### Fixes
    ```jsx
    // Use correct manifest
    const manifestUrl = 'https://your-domain.com/tonconnect-manifest.json';
    
    // Ensure HTTPS
    // Localhost won't work on mobile
    
    // Handle connection states
    const [tonConnectUI] = useTonConnectUI();
    
    useEffect(() => {
      return tonConnectUI.onStatusChange((wallet) => {
        if (wallet) {
          console.log('Connected:', wallet.account.address);
        }
      });
    }, []);
    ```
    
    ### Testing
    - Test on real devices
    - Test with multiple wallets (Tonkeeper, OpenMask)
    - Test both iOS and Android
    - Use ngrok for local dev + mobile test
    
    ### Fallback
    ```jsx
    // Show QR for desktop
    // Show wallet list for mobile
    <TonConnectButton />
    // Automatically handles this
    ```
    
    ### Mini App feels slow and janky
    
    Severity: MEDIUM
    
    Situation: App lags, slow transitions, poor UX
    
    Symptoms:
    - Slow initial load
    - Laggy interactions
    - Users complaining about speed
    - High bounce rate
    
    Why this breaks:
    Too much JavaScript.
    No code splitting.
    Large bundle size.
    No loading optimization.
    
    Recommended fix:
    
    ## Mini App Performance
    
    ### Bundle Size
    - Target < 200KB gzipped
    - Use code splitting
    - Lazy load routes
    - Tree shake dependencies
    
    ### Quick Wins
    ```jsx
    // Lazy load heavy components
    const HeavyChart = lazy(() => import('./HeavyChart'));
    
    // Optimize images
    <img loading="lazy" src="..." />
    
    // Use CSS instead of JS animations
    ```
    
    ### Loading Strategy
    ```jsx
    function App() {
      const [ready, setReady] = useState(false);
    
      useEffect(() => {
        // Show skeleton immediately
        // Load data in background
        Promise.all([
          loadUserData(),
          loadAppConfig(),
        ]).then(() => setReady(true));
      }, []);
    
      if (!ready) return <Skeleton />;
      return <MainApp />;
    }
    ```
    
    ### Vite Optimization
    ```javascript
    // vite.config.js
    export default {
      build: {
        rollupOptions: {
          output: {
            manualChunks: {
              vendor: ['react', 'react-dom'],
            }
          }
        }
      }
    };
    ```
    
    ### Custom buttons instead of MainButton
    
    Severity: MEDIUM
    
    Situation: App has custom submit buttons that feel non-native
    
    Symptoms:
    - Custom submit buttons
    - MainButton never used
    - Inconsistent UX
    - Users confused about actions
    
    Why this breaks:
    MainButton is expected UX.
    Custom buttons feel foreign.
    Inconsistent with Telegram.
    Users don't know what to tap.
    
    Recommended fix:
    
    ## Using MainButton Properly
    
    ### When to Use MainButton
    - Form submission
    - Primary actions
    - Continue/Next flows
    - Checkout/Payment
    
    ### Implementation
    ```javascript
    const tg = window.Telegram.WebApp;
    
    // Show for forms
    function showMainButton(text, onClick) {
      tg.MainButton.setText(text);
      tg.MainButton.onClick(onClick);
      tg.MainButton.show();
    }
    
    // Hide when not needed
    function hideMainButton() {
      tg.MainButton.hide();
      tg.MainButton.offClick();
    }
    
    // Loading state
    function setMainButtonLoading(loading) {
      if (loading) {
        tg.MainButton.showProgress();
        tg.MainButton.disable();
      } else {
        tg.MainButton.hideProgress();
        tg.MainButton.enable();
      }
    }
    ```
    
    ### React Hook
    ```jsx
    function useMainButton(text, onClick, visible = true) {
      const tg = window.Telegram?.WebApp;
    
      useEffect(() => {
        if (!tg) return;
    
        if (visible) {
          tg.MainButton.setText(text);
          tg.MainButton.onClick(onClick);
          tg.MainButton.show();
        } else {
          tg.MainButton.hide();
        }
    
        return () => {
          tg.MainButton.offClick(onClick);
        };
      }, [text, onClick, visible]);
    }
    ```
    
    ## Validation Checks
    
    ### No initData Validation
    
    Severity: HIGH
    
    Message: Not validating initData - security vulnerability.
    
    Fix action: Implement server-side initData validation with hash verification
    
    ### Missing Telegram Web App Script
    
    Severity: HIGH
    
    Message: Telegram Web App script not included.
    
    Fix action: Add <script src='https://telegram.org/js/telegram-web-app.js'></script>
    
    ### Not Calling tg.ready()
    
    Severity: MEDIUM
    
    Message: Not calling tg.ready() - Telegram may show loading state.
    
    Fix action: Call window.Telegram.WebApp.ready() when app is ready
    
    ### Not Using Telegram Theme
    
    Severity: MEDIUM
    
    Message: Not adapting to Telegram theme colors.
    
    Fix action: Use CSS variables from tg.themeParams for colors
    
    ### Missing Viewport Meta Tag
    
    Severity: MEDIUM
    
    Message: Missing viewport meta tag for mobile.
    
    Fix action: Add <meta name='viewport' content='width=device-width, initial-scale=1.0'>
    
    ## Collaboration
    
    ### Delegation Triggers
    
    - bot|command|handler -> telegram-bot-builder (Bot integration)
    - TON|smart contract|blockchain -> blockchain-defi (TON blockchain features)
    - react|vue|frontend -> frontend (Frontend framework)
    - viral|referral|share -> viral-generator-builder (Viral mechanics)
    - game|gamification -> gamification-loops (Game mechanics)
    
    ### Tap-to-Earn Game
    
    Skills: telegram-mini-app, gamification-loops, telegram-bot-builder
    
    Workflow:
    
    ```
    1. Design game mechanics
    2. Build Mini App with tap mechanics
    3. Add referral/viral features
    4. Integrate TON payments
    5. Bot for notifications/onboarding
    6. Launch and grow
    ```
    
    ### DeFi Mini App
    
    Skills: telegram-mini-app, blockchain-defi, frontend
    
    Workflow:
    
    ```
    1. Design DeFi feature (swap, stake, etc.)
    2. Integrate TON Connect
    3. Build transaction UI
    4. Add wallet management
    5. Implement security measures
    6. Deploy and audit
    ```
    
    ## Related Skills
    
    Works well with: `telegram-bot-builder`, `frontend`, `blockchain-defi`, `viral-generator-builder`
    
    ## When to Use
    - User mentions or implies: telegram mini app
    - User mentions or implies: TWA
    - User mentions or implies: telegram web app
    - User mentions or implies: TON app
    - User mentions or implies: mini app
    
    ## Limitations
    - Use this skill only when the task clearly matches the scope described above.
    - Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
    - Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.
    

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