clay-security-basics skill

---
name: clay-security-basics
description: |
  Apply Clay security best practices for secrets and access control.
  Use when securing API keys, implementing least privilege access,
  or auditing Clay security configuration.
  Trigger with phrases like "clay security", "clay secrets",
  "secure clay", "clay API key security".
allowed-tools: Read, Write, Grep
version: 1.0.0
license: MIT
author: Jeremy Longshore <[email protected]>
---

# Clay Security Basics

## Overview
Security best practices for Clay API keys, tokens, and access control.

## Prerequisites
- Clay SDK installed
- Understanding of environment variables
- Access to Clay dashboard

## Instructions

### Step 1: Configure Environment Variables
```bash
# .env (NEVER commit to git)
CLAY_API_KEY=sk_live_***
CLAY_SECRET=***

# .gitignore
.env
.env.local
.env.*.local
```

### Step 2: Implement Secret Rotation
```bash
# 1. Generate new key in Clay dashboard
# 2. Update environment variable
export CLAY_API_KEY="new_key_here"

# 3. Verify new key works
curl -H "Authorization: Bearer ${CLAY_API_KEY}" \
  https://api.clay.com/health

# 4. Revoke old key in dashboard
```

### Step 3: Apply Least Privilege
| Environment | Recommended Scopes |
|-------------|-------------------|
| Development | `read:*` |
| Staging | `read:*, write:limited` |
| Production | `Only required scopes` |

## Output
- Secure API key storage
- Environment-specific access controls
- Audit logging enabled

## Error Handling
| Security Issue | Detection | Mitigation |
|----------------|-----------|------------|
| Exposed API key | Git scanning | Rotate immediately |
| Excessive scopes | Audit logs | Reduce permissions |
| Missing rotation | Key age check | Schedule rotation |

## Examples

### Service Account Pattern
```typescript
const clients = {
  reader: new ClayClient({
    apiKey: process.env.CLAY_READ_KEY,
  }),
  writer: new ClayClient({
    apiKey: process.env.CLAY_WRITE_KEY,
  }),
};
```

### Webhook Signature Verification
```typescript
import crypto from 'crypto';

function verifyWebhookSignature(
  payload: string, signature: string, secret: string
): boolean {
  const expected = crypto.createHmac('sha256', secret).update(payload).digest('hex');
  return crypto.timingSafeEqual(Buffer.from(signature), Buffer.from(expected));
}
```

### Security Checklist
- [ ] API keys in environment variables
- [ ] `.env` files in `.gitignore`
- [ ] Different keys for dev/staging/prod
- [ ] Minimal scopes per environment
- [ ] Webhook signatures validated
- [ ] Audit logging enabled

### Audit Logging
```typescript
interface AuditEntry {
  timestamp: Date;
  action: string;
  userId: string;
  resource: string;
  result: 'success' | 'failure';
  metadata?: Record<string, any>;
}

async function auditLog(entry: Omit<AuditEntry, 'timestamp'>): Promise<void> {
  const log: AuditEntry = { ...entry, timestamp: new Date() };

  // Log to Clay analytics
  await clayClient.track('audit', log);

  // Also log locally for compliance
  console.log('[AUDIT]', JSON.stringify(log));
}

// Usage
await auditLog({
  action: 'clay.api.call',
  userId: currentUser.id,
  resource: '/v1/resource',
  result: 'success',
});
```

## Resources
- [Clay Security Guide](https://docs.clay.com/security)
- [Clay API Scopes](https://docs.clay.com/scopes)

## Next Steps
For production deployment, see `clay-prod-checklist`.