// Execute via MCP Gateway:
gateway_execute_skill({ name: "payment-processing", inputs: { ... } })

// Or via REST API:
// POST /api/code/skills/payment-processing/execute
// Body: { "inputs": { ... } }

// Payment Processing Skill
const provider = inputs.provider || 'stripe';
const feature = inputs.feature || 'checkout';

const integrations = {
  stripe: {
    checkout: `## Stripe Checkout (Next.js)

\`\`\`typescript
// app/api/checkout/route.ts
import Stripe from 'stripe';

const stripe = new Stripe(process.env.STRIPE_SECRET_KEY!);

export async function POST(req: Request) {
  const { priceId } = await req.json();
  
  const session = await stripe.checkout.sessions.create({
    mode: 'subscription',
    payment_method_types: ['card'],
    line_items: [{ price: priceId, quantity: 1 }],
    success_url: \`\${process.env.NEXT_PUBLIC_URL}/success?session_id={CHECKOUT_SESSION_ID}\`,
    cancel_url: \`\${process.env.NEXT_PUBLIC_URL}/canceled\`,
  });
  
  return Response.json({ url: session.url });
}
\`\`\``,
    webhook: `## Stripe Webhook Handler

\`\`\`typescript
// app/api/webhook/route.ts
import Stripe from 'stripe';

const stripe = new Stripe(process.env.STRIPE_SECRET_KEY!);

export async function POST(req: Request) {
  const body = await req.text();
  const sig = req.headers.get('stripe-signature')!;
  
  let event: Stripe.Event;
  try {
    event = stripe.webhooks.constructEvent(
      body, sig, process.env.STRIPE_WEBHOOK_SECRET!
    );
  } catch (err) {
    return new Response('Webhook Error', { status: 400 });
  }
  
  switch (event.type) {
    case 'checkout.session.completed':
      // Handle successful checkout
      break;
    case 'customer.subscription.updated':
      // Handle subscription changes
      break;
  }
  
  return new Response('OK');
}
\`\`\``
  },
  polar: {
    checkout: `## Polar.sh Integration

\`\`\`typescript
// Polar SDK setup
import { Polar } from '@polar-sh/sdk';

const polar = new Polar({ accessToken: process.env.POLAR_ACCESS_TOKEN });

// Create checkout
const checkout = await polar.checkouts.create({
  productId: 'prod_xxx',
  successUrl: 'https://yoursite.com/success',
});
\`\`\``,
    webhook: `## Polar Webhook

\`\`\`typescript
// Verify webhook signature
import { validateWebhookSignature } from '@polar-sh/sdk';

const isValid = validateWebhookSignature(
  payload, signature, process.env.POLAR_WEBHOOK_SECRET
);
\`\`\``
  }
};

const result = integrations[provider]?.[feature] || 'Provider/feature not found';
console.log(result);