Systematic Debugging

Root Cause Tracing

mrgoonie

Systematically trace bugs backward through call stack to find original trigger

Scale Game

mrgoonie

Test at extremes (1000x bigger/smaller, instant/year-long) to expose fundamental truths hidden at normal scales

Creating Development Plans

sammcj

Creates structured development plans with phased task breakdowns, requirements, and QA checklists. Use when the user explicitly asks to create a dev plan, development plan, or document development requirements.

Writing Go Tests

sammcj

Applies current Go testing best practices. Use when writing or modifying Go test files or advising on Go testing strategies.

webapp-testing

LeastBit

使用 Playwright 与本地 Web 应用交互并进行测试的工具包，可验证前端功能、调试 UI 行为、捕获浏览器截图、查看日志。

Debugging Issues

jeanluciano

Systematically debug issues with reproduction steps, error analysis, hypothesis testing, and root cause fixes. Use when investigating bugs, analyzing production incidents, or troubleshooting unexpected behavior.

territory-planning-optimizer

gked2121

Account assignment by revenue potential, geography, relationship. Workload balancing, TAM/SAM calculation, coverage models.

testing-guide

akaszubski

Complete testing methodology - TDD, progression tracking, regression prevention, and test patterns

python-testing-patterns

wshobson

Implement comprehensive testing strategies with pytest, fixtures, mocking, and test-driven development. Use when writing Python tests, setting up test suites, or implementing testing best practices.

dependency-upgrade

wshobson

Manage major dependency version upgrades with compatibility analysis, staged rollout, and comprehensive testing. Use when upgrading framework versions, updating major dependencies, or managing breaking changes in libraries.

web3-testing

wshobson

Test smart contracts comprehensively using Hardhat and Foundry with unit tests, integration tests, and mainnet forking. Use when testing Solidity contracts, setting up blockchain test suites, or validating DeFi protocols.

javascript-testing-patterns

wshobson

Implement comprehensive testing strategies using Jest, Vitest, and Testing Library for unit tests, integration tests, and end-to-end testing with mocking, fixtures, and test-driven development. Use when writing JavaScript/TypeScript tests, setting up test infrastructure, or implementing TDD/BDD workflows.