Unit Testing

Run tests with Jest, Vitest, or Playwright, fix failing tests, and generate missing test coverage. Use when user says "run tests", "test this", "fix failing tests", "write tests", or when tests need to be executed or created.

This skill provides project-specific coding conventions, architectural principles, repository structure standards, testing patterns, and contribution guidelines for the better-chatbot project (https://github.com/cgoinglove/better-chatbot). Use this skill when contributing to or working with better-chatbot to understand the design philosophy and ensure code follows established patterns.Includes: API architecture deep-dive, three-tier tool system (MCP/Workflow/Default), component design patterns, database repository patterns, architectural principles (progressive enhancement, defensive programming, streaming-first), practical templates for adding features (tools, routes, repositories).Use when: working in better-chatbot repository, contributing features/fixes, understanding architectural decisions, following server action validators, implementing tools/workflows, setting up Playwright tests, adding API routes, designing database queries, building UI components, handling multi-AI provider integrationKeywor

newsflow-libraryのテスト作成規約を適用します。*Test.ktファイル作成、Fake実装作成、テストパターンの質問時に使用してください。

Manage project planning, documentation, and ticket coordination. Use this skill for: (1) Project planning and roadmap management, (2) Creating and coordinating tickets (T0000N), (3) Managing docs/ directory structure and CRUD operations, (4) Post-ticket completion tasks (export tests, update planning docs).

Adds feature flag support using LaunchDarkly or JSON-based configuration to toggle features in UI components and Server Actions. This skill should be used when implementing feature flags, feature toggles, progressive rollouts, A/B testing, or gating functionality behind configuration. Use for feature flags, feature toggles, LaunchDarkly integration, progressive rollout, canary releases, or conditional features.

pytest, Vitest, Playwright testing patterns for Pulse Radar.

生成Mock/Stub契约检查清单，enforcing test_suites.md的Mock策略规则。当TS中Mock策略确定后使用。

This skill should be used when the user says "let's land the plane", "land the plane", "end the session cleanly", "wrap up the session", or asks to prepare for a clean handoff between coding sessions. Provides a systematic protocol for ensuring all work is committed, tested, tracked, and ready for the next session.

Builds and manages iOS/macOS apps using xcodebuild and xcrun simctl CLI tools. Use when working with Xcode projects, running apps in simulators, managing simulator instances, taking screenshots, capturing logs, running tests, or automating builds.

Use when performing UI testing with Chrome DevTools MCP in a multi-agent worktree environment - ensures proper Chrome instance isolation to prevent cross-contamination between agents

Senior Frontend Code Reviewer with 12+ years JavaScript/TypeScript experience. Use when reviewing React/TypeScript code, checking code quality and style, verifying accessibility compliance, ensuring test coverage, or configuring linting tools (ESLint, Prettier).

TheGraph subgraph development with AssemblyScript handlers, schema definitions, and Matchstick testing. Triggers on subgraph, thegraph, graphql, mapping.ts.

Guide to designing and implementing tools for the vscode-copilot-chat extension, including patterns, testing, and best practices

Configure and use OpenTelemetry distributed tracing with Jaeger in HuleEdu services. Guides tracer initialization, span creation, W3C trace propagation, and correlation with logs/metrics. Integrates with Context7 for latest OpenTelemetry documentation.

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

Go testing best practices including table-driven tests, race detection, test coverage, and mocking strategies. Use when writing or reviewing Go tests.

Principles for writing simple, maintainable Laravel/Livewire code. Use when writing Livewire components, tests, or Blade views. Focuses on avoiding over-engineering.

Systematic debugging workflow for CircleTel - analyzes errors, identifies root causes, proposes fixes, and validates solutions with tests

This skill should be used when users need to capture screenshots of web pages. It supports full-page screenshots, viewport-specific captures, responsive screenshots across multiple device sizes, and element-specific screenshots. Use this skill for visual testing, documentation, design reviews, or any task requiring automated browser screenshots.

Guide developers through mutation testing to assess and improve test suite quality