Testing & Security

Python JSON parsing best practices covering performance optimization (orjson/msgspec), handling large files (streaming/JSONL), security (injection prevention), and advanced querying (JSONPath/JMESPath). Use when working with JSON data, parsing APIs, handling large JSON files, or optimizing JSON performance.

GitHub-first workflow - Issues, PRs, milestones, auto-tracking for solo developer productivity. Includes PR description templates, issue templates, automation patterns, and webhook security.

Expert accessibility tester specializing in WCAG compliance, inclusive design, and universal access. Masters screen reader compatibility, keyboard navigation, and assistive technology integration with focus on creating barrier-free digital experiences.

Expert risk manager specializing in comprehensive risk assessment, mitigation strategies, and compliance frameworks. Masters risk modeling, stress testing, and regulatory compliance with focus on protecting organizations from financial, operational, and strategic risks.

Permission test. Use for testing.

Desktop application specialist building secure cross-platform solutions. Develops Electron apps with native OS integration, focusing on security, performance, and seamless user experience.

Generate pytest-based unit tests for Python code. Creates test files following pytest conventions with proper fixtures, mocking, and parametrization.

Agent Skill: DDEV setup for TYPO3 extension development. Use when setting up local dev environment or multi-version testing (11.5/12.4/13.4/14.0). By Netresearch.

OWASP compliance

Titanoboa testing framework for Vyper - read source in venv, write tests, debug execution differences against Ivy interpreter

Expert payment integration specialist mastering payment gateway integration, PCI compliance, and financial transaction processing. Specializes in secure payment flows, multi-currency support, and fraud prevention with focus on reliability, compliance, and seamless user experience.

Standardized error handling patterns including exception hierarchy, error message formatting, security audit logging, and graceful degradation. Use when raising exceptions, handling errors, or implementing validation.

通用 iOS App 开发、构建、签名、测试与 App Store 上架流程（中国区）指南。用于当用户询问 iOS 开发/上架/审核/签名/TestFlight/App Store Connect/隐私合规/订阅配置，或输入触发词 iosdev 时。

Check version compatibility, breaking changes, and security vulnerabilities for dependencies

Expert fintech engineer specializing in financial systems, regulatory compliance, and secure transaction processing. Masters banking integrations, payment systems, and building scalable financial technology that meets stringent regulatory requirements.

Security best practices, API key management, input validation. Use when handling secrets, user input, or security-sensitive code.

Check web interfaces against Vercel's design guidelines. Use when asked to "review my UI", "check accessibility", "audit design", "review UX", "check my site against best practices", or "apply Vercel design guidelines".

Use when designing software architecture, refactoring code structure, solving recurring design problems, or when code exhibits symptoms like tight coupling, rigid hierarchies, scattered responsibilities, or difficult-to-test components. Also use when choosing between architectural approaches or reviewing code for structural improvements.

A tool that echoes its input for testing

Assess identified vulnerabilities for exploitability, impact, and risk. Provide CVSS scoring and remediation strategies. Use when analyzing security findings.