---

name: emerging-specialty-skills description: Master emerging technologies including blockchain, cybersecurity, QA testing, and specialized tech roles. Stay ahead with cutting-edge technologies. sasmp_version: "1.3.0" skill_type: atomic version: "2.0.0"

parameters: domain: type: string enum: [blockchain, security, qa, iot, quantum] default: security context: type: string enum: [learning, implementation, audit] default: implementation

validation_rules:

• pattern: "^0x[a-fA-F0-9]{40}$" target: ethereum_addresses message: Must be valid Ethereum address
• pattern: "^test_.*$" target: test_functions message: Test functions must start with test_

retry_config: max_attempts: 3 backoff: exponential initial_delay_ms: 1000

logging: on_entry: "[Emerging] Starting: {task}" on_success: "[Emerging] Completed: {task}" on_error: "[Emerging] Failed: {task} - {error}"

dependencies: agents: - emerging-tech-specialist

Emerging Tech & Specialty Skills

Blockchain & Smart Contracts

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;

import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract SecureToken is ReentrancyGuard, Ownable {
    mapping(address => uint256) public balances;
    bool public paused;

    event Transfer(address indexed from, address indexed to, uint256 amount);
    event Paused(address account);

    modifier whenNotPaused() {
        require(!paused, "Contract is paused");
        _;
    }

    constructor() Ownable(msg.sender) {
        balances[msg.sender] = 1000000 * 10**18;
    }

    // Checks-Effects-Interactions pattern
    function transfer(address to, uint256 amount)
        external
        nonReentrant
        whenNotPaused
    {
        // Checks
        require(to != address(0), "Invalid address");
        require(balances[msg.sender] >= amount, "Insufficient balance");

        // Effects
        balances[msg.sender] -= amount;
        balances[to] += amount;

        // Interactions (none in this case, but would go here)
        emit Transfer(msg.sender, to, amount);
    }

    function pause() external onlyOwner {
        paused = true;
        emit Paused(msg.sender);
    }
}

// Ethers.js v6 - Interact with blockchain
import { ethers } from 'ethers';

async function interactWithContract() {
  const provider = new ethers.JsonRpcProvider(process.env.RPC_URL);
  const wallet = new ethers.Wallet(process.env.PRIVATE_KEY, provider);

  const contract = new ethers.Contract(
    CONTRACT_ADDRESS,
    ABI,
    wallet
  );

  try {
    // Estimate gas first
    const gasEstimate = await contract.transfer.estimateGas(
      recipientAddress,
      amount
    );

    // Send transaction with buffer
    const tx = await contract.transfer(recipientAddress, amount, {
      gasLimit: gasEstimate * 120n / 100n  // 20% buffer
    });

    const receipt = await tx.wait();
    console.log(`TX confirmed: ${receipt.hash}`);
  } catch (error) {
    console.error('Transaction failed:', error.message);
  }
}

Cybersecurity Best Practices

# Security scanning with bandit
# bandit -r src/ -f json -o security-report.json

# Secure password hashing
from argon2 import PasswordHasher
from argon2.exceptions import VerifyMismatchError

ph = PasswordHasher(
    time_cost=3,
    memory_cost=65536,
    parallelism=4
)

def hash_password(password: str) -> str:
    """Hash password with Argon2id."""
    return ph.hash(password)

def verify_password(hash: str, password: str) -> bool:
    """Verify password against hash."""
    try:
        ph.verify(hash, password)
        return True
    except VerifyMismatchError:
        return False

# Input validation
import re
from html import escape

def sanitize_input(user_input: str) -> str:
    """Sanitize user input to prevent XSS."""
    # Remove script tags
    cleaned = re.sub(r'<script.*?>.*?</script>', '', user_input, flags=re.DOTALL)
    # Escape HTML entities
    return escape(cleaned)

def validate_email(email: str) -> bool:
    """Validate email format."""
    pattern = r'^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$'
    return bool(re.match(pattern, email))

QA & Testing Framework

// Jest with comprehensive testing patterns
import { render, screen, waitFor } from '@testing-library/react';
import userEvent from '@testing-library/user-event';

describe('Authentication Flow', () => {
  // Setup and teardown
  beforeEach(() => {
    jest.clearAllMocks();
    localStorage.clear();
  });

  afterEach(() => {
    jest.restoreAllMocks();
  });

  // Happy path
  test('successful login redirects to dashboard', async () => {
    const mockLogin = jest.fn().mockResolvedValue({ token: 'abc123' });

    render(<LoginForm onLogin={mockLogin} />);

    await userEvent.type(screen.getByLabelText(/email/i), 'user@example.com');
    await userEvent.type(screen.getByLabelText(/password/i), 'securepass');
    await userEvent.click(screen.getByRole('button', { name: /login/i }));

    await waitFor(() => {
      expect(mockLogin).toHaveBeenCalledWith({
        email: 'user@example.com',
        password: 'securepass'
      });
    });
  });

  // Error handling
  test('displays error on invalid credentials', async () => {
    const mockLogin = jest.fn().mockRejectedValue(new Error('Invalid credentials'));

    render(<LoginForm onLogin={mockLogin} />);

    await userEvent.type(screen.getByLabelText(/email/i), 'bad@example.com');
    await userEvent.type(screen.getByLabelText(/password/i), 'wrongpass');
    await userEvent.click(screen.getByRole('button', { name: /login/i }));

    await waitFor(() => {
      expect(screen.getByRole('alert')).toHaveTextContent(/invalid credentials/i);
    });
  });

  // Edge cases
  test('prevents submission with empty fields', async () => {
    const mockLogin = jest.fn();

    render(<LoginForm onLogin={mockLogin} />);

    await userEvent.click(screen.getByRole('button', { name: /login/i }));

    expect(mockLogin).not.toHaveBeenCalled();
    expect(screen.getByText(/email is required/i)).toBeInTheDocument();
  });
});

// Cypress E2E with best practices
describe('E-commerce Checkout', () => {
  beforeEach(() => {
    cy.intercept('GET', '/api/cart', { fixture: 'cart.json' }).as('getCart');
    cy.intercept('POST', '/api/checkout', { fixture: 'order.json' }).as('checkout');

    cy.login('test@example.com', 'password');  // Custom command
    cy.visit('/checkout');
    cy.wait('@getCart');
  });

  it('completes checkout successfully', () => {
    // Fill shipping info
    cy.get('[data-testid="shipping-form"]').within(() => {
      cy.get('input[name="address"]').type('123 Main St');
      cy.get('input[name="city"]').type('New York');
      cy.get('select[name="state"]').select('NY');
      cy.get('input[name="zip"]').type('10001');
    });

    // Fill payment info
    cy.get('[data-testid="payment-form"]').within(() => {
      cy.get('input[name="card"]').type('4242424242424242');
      cy.get('input[name="expiry"]').type('12/25');
      cy.get('input[name="cvv"]').type('123');
    });

    // Submit and verify
    cy.get('[data-testid="submit-order"]').click();
    cy.wait('@checkout');

    cy.url().should('include', '/order-confirmation');
    cy.get('[data-testid="order-number"]').should('exist');
  });
});

Security Testing Checklist

# OWASP Top 10 Testing Checklist
security_tests:
  injection:
    - SQL injection in all inputs
    - NoSQL injection
    - Command injection
    - LDAP injection
    status: [ ]

  authentication:
    - Password policy enforcement
    - Account lockout mechanism
    - Session management
    - MFA implementation
    status: [ ]

  sensitive_data:
    - Data encrypted at rest
    - Data encrypted in transit (TLS 1.3)
    - No sensitive data in logs
    - Secure key management
    status: [ ]

  access_control:
    - RBAC implementation
    - Privilege escalation tests
    - IDOR vulnerabilities
    - Path traversal
    status: [ ]

  security_headers:
    - Content-Security-Policy
    - X-Frame-Options
    - X-Content-Type-Options
    - Strict-Transport-Security
    status: [ ]

Test Pyramid

        /\
       /  \        E2E Tests (10%)
      /    \       - Full user flows
     /------\      - Browser automation
    /        \
   /          \    Integration Tests (20%)
  /            \   - API contracts
 /--------------\  - Service integration
/                \
/                  \ Unit Tests (70%)
/--------------------\ - Fast, isolated
                       - Mock dependencies

Troubleshooting Guide

Symptom	Cause	Solution
Reentrancy exploit	No guard	Use ReentrancyGuard
Gas too high	Inefficient code	Optimize loops, storage
Test flaky	Async issues	Add proper waits
False positive	Scanner too sensitive	Tune rules

Key Concepts Checklist

• Blockchain basics and smart contracts
• Cryptocurrency fundamentals
• Security testing and vulnerability assessment
• Penetration testing basics
• OWASP Top 10
• Unit and integration testing
• Test automation frameworks
• Performance testing
• CI/CD testing
• Kotlin programming
• Emerging tech trends
• Career specialization paths

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Source: https://roadmap.sh Version: 2.0.0 Last Updated: 2025-01-01