Testing

This skill validates n8n expression syntax, tests with sample data, and identifies common errors like undefined property access and type mismatches. It provides safe coding patterns, security checks for dangerous functions, and performance tips for array operations. The quick reference card and error/fix examples help developers write reliable expressions.

Provides structured testing methods for n8n workflows, including validation, execution testing, and error handling. Offers code examples for common testing scenarios and coordination patterns for multi-agent testing.

Provides detailed guidance for implementing visual regression testing using Playwright and Percy. Covers baseline capture, dynamic content masking, responsive testing, and AI-powered diff analysis. Includes concrete code examples for common scenarios and configuration options.

Comprehensive test reporting and analytics skill with excellent structure, practical templates, and clear guidance for different audiences and use cases.

This skill teaches context-driven testing principles, helping testers adapt their approach based on project specifics rather than blindly following 'best practices'. It provides concrete heuristics like SFDIPOT and RST tours, with examples for different project contexts (startup vs enterprise). The skill includes agent coordination patterns for implementing context-aware testing strategies.

This skill guides developers through London (mock-based) and Chicago (state-based) TDD approaches with clear decision rules. It provides concrete examples, common pitfalls, and agent coordination patterns for test generation and refactoring. The quick reference card helps teams choose the right testing style based on code type.

Applies Edward de Bono's Six Thinking Hats framework specifically to software testing contexts. Provides structured templates for analyzing test strategies, identifying risks, and generating creative testing approaches. Includes timed session formats and integration examples with testing agents.

Provides concrete patterns for designing test strategies across unit, integration, and E2E layers. Includes specific coverage targets, quality gate thresholds, and practical examples for test design. Focuses on balancing test speed, confidence, and maintenance costs with actionable implementation guidance.

Provides a structured methodology for verifying code claims through systematic evidence collection and deductive reasoning. Includes investigation templates, checklists, and example scenarios for validating bug fixes, performance improvements, and edge case handling.

This skill provides concrete patterns for testing in production environments using feature flags, canary deployments, and chaos experiments. It includes specific code examples for implementing progressive rollouts and monitoring key metrics like error rates and latency.

Provides concrete guidance for cross-browser and cross-platform compatibility testing with specific browser matrices, screen breakpoints, and code examples for Playwright and BrowserStack integration. Focuses on testing actual user environments rather than developer setups.

A comprehensive and well-structured guide to implementing shift-left testing practices with clear implementation levels, practical examples, and agent coordination strategies for modern development teams.