Edge Deployment

import { TealEngine, TealGuard, PolicyMode } from 'tealtiger';
import { PromptInjectionGuardrail, PIIDetectionGuardrail } from 'tealtiger';

const engine = new TealEngine(
  {
    content: {
      pii: { enabled: true, blockedTypes: ['ssn', 'credit_card'] },
    },
  },
  { mode: { default: PolicyMode.ENFORCE } }
);

const guard = new TealGuard({ policyDriven: true, engine });
guard.registerGuardrail(new PromptInjectionGuardrail({ sensitivity: 'high' }));
guard.registerGuardrail(new PIIDetectionGuardrail());

export default {
  async fetch(request: Request): Promise<Response> {
    const body = await request.json();
    const decision = await guard.check(body.prompt);

    if (decision.action === 'DENY') {
      return new Response(JSON.stringify({ error: decision.reason }), {
        status: 403,
        headers: { 'Content-Type': 'application/json' },
      });
    }

    // Forward to origin
    return fetch('https://api.your-app.com/chat', {
      method: 'POST',
      body: JSON.stringify(body),
    });
  },
};