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@jeremylongshore/claude-code-plugins-plus-skills
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SKILL.md

name instantly-security-basics
description Apply Instantly security best practices for secrets and access control. Use when securing API keys, implementing least privilege access, or auditing Instantly security configuration. Trigger with phrases like "instantly security", "instantly secrets", "secure instantly", "instantly API key security".
allowed-tools Read, Write, Grep
version 1.0.0
license MIT
author Jeremy Longshore <jeremy@intentsolutions.io>

Instantly Security Basics

Overview

Security best practices for Instantly API keys, tokens, and access control.

Prerequisites

  • Instantly SDK installed
  • Understanding of environment variables
  • Access to Instantly dashboard

Instructions

Step 1: Configure Environment Variables

# .env (NEVER commit to git)
INSTANTLY_API_KEY=sk_live_***
INSTANTLY_SECRET=***

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

Step 2: Implement Secret Rotation

# 1. Generate new key in Instantly dashboard
# 2. Update environment variable
export INSTANTLY_API_KEY="new_key_here"

# 3. Verify new key works
curl -H "Authorization: Bearer ${INSTANTLY_API_KEY}" \
  https://api.instantly.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

const clients = {
  reader: new InstantlyClient({
    apiKey: process.env.INSTANTLY_READ_KEY,
  }),
  writer: new InstantlyClient({
    apiKey: process.env.INSTANTLY_WRITE_KEY,
  }),
};

Webhook Signature Verification

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

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 Instantly analytics
  await instantlyClient.track('audit', log);

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

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

Resources

Next Steps

For production deployment, see instantly-prod-checklist.