@torknetwork/sdk

Official JavaScript/TypeScript SDK for Tork Governance - AI agent governance, PII detection, and policy enforcement.

Installation

npm install @torknetwork/sdk

Quick Start

PII Detection & Redaction

import { PIIRedactor } from '@torknetwork/sdk';

const redactor = new PIIRedactor();

// Detect PII
const matches = redactor.detect('Email: [email protected], SSN: 123-45-6789');
console.log(matches);
// [
//   { type: 'EMAIL', value: '[email protected]', start: 7, end: 23, confidence: 0.95 },
//   { type: 'SSN', value: '123-45-6789', start: 30, end: 41, confidence: 0.95 }
// ]

// Redact PII
const result = redactor.redact('My email is [email protected]');
console.log(result.redacted);
// 'My email is [EMAIL]'

Governance Engine (Local)

import { GovernanceEngine } from '@torknetwork/sdk';

const engine = new GovernanceEngine();

const result = engine.evaluate({
  agentId: 'my-agent',
  payload: { message: 'User SSN is 123-45-6789' }
});

console.log(result.decision);     // 'block'
console.log(result.score);        // 25
console.log(result.piiMatches);   // [{ type: 'SSN', ... }]
console.log(result.receipt.id);   // 'tork_xxx_yyy'

API Client

import { TorkClient } from '@torknetwork/sdk';

const client = new TorkClient({
  apiKey: 'your-api-key'
});

// Evaluate via API
const result = await client.evaluate({
  agentId: 'my-agent',
  payload: { message: 'Hello world' }
});

// Get agent score
const score = await client.getScore('my-agent');

Express Middleware

import express from 'express';
import { torkMiddleware } from '@torknetwork/sdk/express';

const app = express();
app.use(express.json());

// Add governance middleware
app.use('/api', torkMiddleware({
  agentId: 'my-api',
  mode: 'enforce',
  localMode: true,
  excludePaths: ['/health']
}));

app.post('/api/chat', (req, res) => {
  // req.body is automatically redacted if PII was found
  // req.tork contains the governance result
  res.json({ received: req.body });
});

Features

PII Detection (20+ Types)

| Type | Example | |------|---------| | EMAIL | [email protected] | | PHONE | (555) 123-4567 | | SSN | 123-45-6789 | | CREDIT_CARD | 4532-0151-1283-0366 | | IP_ADDRESS | 192.168.1.1 | | AWS_ACCESS_KEY | AKIAIOSFODNN7EXAMPLE | | AWS_SECRET_KEY | wJalrXUtnFEMI/K7MDENG... | | GITHUB_TOKEN | ghp_xxxxxxxxxxxx | | STRIPE_KEY | sk_live_xxxxx | | JWT_TOKEN | eyJhbGciOiJ... | | IBAN | DE89370400440532013000 | | PASSPORT | A12345678 | | PRIVATE_KEY | -----BEGIN PRIVATE KEY----- | | And more... | |

Governance Decisions

• allow - Request is safe
• block - Request contains high-risk content
• redact - PII detected and redacted
• review - Flagged for human review

Risk Scoring

Each PII type has a risk weight (0-35). Scores are calculated based on:

• Type of PII found
• Detection confidence
• Number of occurrences

| Risk Level | Score Range | |------------|-------------| | Low | 0-20 | | Medium | 20-50 | | High | 50-80 | | Critical | 80-100 |

API Reference

PIIRedactor

const redactor = new PIIRedactor({
  types: ['EMAIL', 'SSN'],      // Filter PII types
  minConfidence: 0.8,            // Minimum confidence threshold
  replacement: '[REDACTED]',     // Custom replacement text
});

redactor.detect(text: string): PIIMatch[]
redactor.redact(text: string): RedactionResult
redactor.containsPII(text: string): boolean
redactor.getSummary(text: string): Record<PIIType, number>

GovernanceEngine

const engine = new GovernanceEngine({
  policies: [...],              // Custom policy rules
  piiTypes: ['EMAIL', 'SSN'],   // PII types to scan
  thresholds: {
    block: 80,
    review: 50,
    redact: 20,
  },
});

engine.evaluate(request): EvaluationResult
engine.addPolicy(policy): void
engine.removePolicy(policyId): boolean
engine.getPolicies(): PolicyRule[]

TorkClient

const client = new TorkClient({
  apiKey: 'xxx',
  baseUrl: 'https://api.tork.network',
  timeout: 30000,
  retries: 3,
});

await client.evaluate({ agentId, payload }): EvaluateResponse
await client.redact(text): RedactResponse
await client.getScore(agentId): ScoreResponse
await client.getAuditLogs(agentId, options): AuditLogsResponse

Express Middleware

import { torkMiddleware, piiRedactionMiddleware } from '@torknetwork/sdk/express';

// Full governance
app.use(torkMiddleware({
  agentId: 'my-api',
  mode: 'enforce',       // 'enforce' | 'warn' | 'audit'
  localMode: true,       // Use local engine (no API calls)
  apiKey: 'xxx',         // Required if localMode: false
  excludePaths: ['/health'],
  onDecision: (result, req, res) => { ... },
}));

// PII redaction only
app.use(piiRedactionMiddleware({
  agentId: 'my-api',
}));

Custom Policies

const engine = new GovernanceEngine({
  policies: [
    {
      id: 'block-secrets',
      name: 'Block Secrets',
      condition: {
        piiTypes: ['AWS_SECRET_KEY', 'PRIVATE_KEY'],
      },
      action: 'block',
      priority: 100,
    },
    {
      id: 'review-keywords',
      name: 'Review Sensitive Keywords',
      condition: {
        keywords: ['confidential', 'internal only'],
        riskScoreThreshold: 30,
      },
      action: 'review',
      priority: 50,
    },
    {
      id: 'custom-check',
      name: 'Custom Check',
      condition: {
        custom: (request, piiMatches) => {
          return request.context?.userId === 'admin';
        },
      },
      action: 'allow',
      priority: 200,
    },
  ],
});

License

MIT - see LICENSE