Unit Testing

Comprehensive security engineering skill for application security, penetration testing, security architecture, and compliance auditing. Includes security assessment tools, threat modeling, crypto implementation, and security automation. Use when designing security architecture, conducting penetration tests, implementing cryptography, or performing security audits.

Complete browser automation with Playwright. Auto-detects dev servers, writes clean test scripts to /tmp. Test pages, fill forms, take screenshots, check responsive design, validate UX, test login flows, check links, automate any browser task. Use when user wants to test websites, automate browser interactions, validate web functionality, or perform any browser-based testing.

Generate realistic fake content for HTML prototypes. Use when populating pages with sample text, products, testimonials, or other content. NOT generic lorem ipsum.

Write and run JavaScript/TypeScript tests using Vitest or Jest with mocking, component testing, and coverage. Use when writing JS/TS tests, testing Svelte/React components, or setting up test configuration.

Executes git commands (fetch, rebase, commit, merge, push) following worktree workflow, then monitors ALL resulting deployments with temporal boundaries and cascade detection. After git push, monitors all workflows from the last 5 minutes including cascading workflows (e.g., Test → Deploy chains). Automatically tracks multiple parallel workflows and waits for triggered workflows. Use /devops-check for comprehensive monitoring with automatic fixing. All deployments are triggered by git push, not manual AWS CLI commands.

Use when designing tests, implementing test cases, running tests, analyzing test coverage, or fixing test failures. Apply when user mentions testing, test cases, TDD, coverage, or asks to run tests. Use proactively after implementation is complete to ensure adequate test coverage.

Guide experienced developers through TDD failure scenarios and recovery procedures when tests behave unexpectedly

A skill for generating and seeding realistic test data into a database. Use this skill for tasks related to database seeding, test data generation, and populating a database for development, testing, or demo purposes. It supports idempotent seeding, relationship data generation (e.g., users and their tasks), and environment-specific data sets (dev, test, demo). Triggers: "seed database", "generate test data", "populate db", "database seeding".

Run Python code in lesson context with proper uv and venv handling for agent-spike project. Activate when user wants to run tests, demos, or CLI commands for lessons in lessons/ directories. Project-specific for agent-spike multi-agent learning.

Comprehensive Python data engineering patterns for AWS Data Lake, including PySpark, Pandas, Apache Airflow, AWS Glue, ETL pipelines, data quality, schema management, performance optimization, FastAPI services, streaming with Kafka/Kinesis, data validation with Great Expectations, testing strategies, error handling, logging, and production deployment on AWS EMR and Glue.

Post-deployment validation and health check scripts for validating HTTP endpoints, APIs, MCP servers, SSL/TLS certificates, and performance metrics. Use when deploying applications, validating deployments, testing endpoints, checking SSL certificates, running performance tests, or when user mentions health checks, deployment validation, endpoint testing, performance testing, or uptime monitoring.

Searching internet for technical documentation using llms.txt standard, GitHub repositories via Repomix, and parallel exploration. Use when user needs: (1) Latest documentation for libraries/frameworks, (2) Documentation in llms.txt format, (3) GitHub repository analysis, (4) Documentation without direct llms.txt support, (5) Multiple documentation sources in parallel

Safe deployment of Polymarket trading bot with regression tests and active trade protection

Execute surgical code refactors using single, named refactoring patterns with test verification. Use only when user explicitly requests to refactor code or perform a specific refactoring pattern. Analyzes complexity, establishes test baseline, previews changes with quality checks, executes refactoring, and verifies tests still pass.

Use this when running or adding tests (compile/lint/unit/E2E), updating test utilities, or working with Playwright/visual testing in markdowntown.

Implement disaster recovery and backup strategies for Proxmox. Create and manage backups, test recovery procedures, and ensure business continuity for your infrastructure.

When reviewing coding test solutions. This Skill reviews coding test solutions and provides feedback. it adds an evaluation section to the README.md file in the problem-solving folder, including areas for improvement, strengths, and other application ideas based on the provided template. Use this skill when user requests "코테 리뷰", "풀이 리뷰", "리뷰 작성", "리뷰를 작성해줘", "코드 리뷰", or any similar coding test review request.

QA Specialist Captain - Advanced testing, UAT coordination, and compliance validation

Define services, provide layers, compose dependencies, and switch live/test. Use for DI boundaries and app composition.

Guide experienced developers through REFACTOR phase of TDD cycle - improving code quality while maintaining green tests