Unit Testing

Comprehensive Bun runtime expertise covering all major features.Use when working with Bun projects, migrating from Node.js, or leveraging Bun-specific APIs.Activates for: Bun.serve, Bun.file, bun:test, bun:sqlite, bun install, bun build,bunfig.toml, TypeScript in Bun, package manager operations, bundler configuration,and Node.js compatibility questions.

Visual testing skill for React Native apps across iPhone models. Use when testing app appearance on iPhone 11 through 17 (all variants including Pro, Pro Max, Plus, Mini, Air, and SE). Covers screenshot capture, simulator configuration, screen dimension validation, safe area handling, Dynamic Island/notch compatibility, and pixel-perfect verification across all iPhone screen sizes and resolutions.

TestFlight and App Store distribution guide. Use when preparing app for TestFlight, creating production builds, or submitting to App Store Connect.

Generates production-ready BAML applications from natural language requirements. Creates complete type definitions, functions, clients, tests, and framework integrations for data extraction, classification, RAG, and agent workflows. Queries official BoundaryML repositories via MCP for real-time patterns. Supports multimodal inputs (images, audio), 6 programming languages (Python, TypeScript, Ruby, Java, Go, C#), 10+ frameworks, 50-70% token optimization, and 95%+ compilation success.

Development guidelines for Quantum Skincare's Python FastAPI image processor microservice. Covers FastAPI patterns, Perfect Corp API integration, MediaPipe FaceMesh validation, correlation headers, access control (CIDR + X-Internal-Secret), error handling, Pydantic models, structured logging, mock mode, provider normalization, and testing strategies. Use when working with image-processor code, routes, validation pipeline, Perfect Corp integration, or Python/FastAPI patterns.

Generates Babel configuration for JavaScript transpilation in tests. Creates babel.config.js file.

Guidelines for writing effective tests in this project

Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.

Complete feature work and merge back to main branch. Use when user wants to finish a feature, close a feature, or merge feature branch. Switches to main, pulls latest changes, merges feature branch, and pushes to remote.

Documents components with Storybook using CSF 3.0, controls, and MDX. Use when creating component catalogs, interactive examples, visual testing setups, or design system documentation sites.

Build and run the Nomos Terraform Remote State Provider. Use this when testing the provider, verifying functionality, or running the provider binary locally.

This skill should be used when developing backend services for Manjha using Encore.ts, implementing agents, writing E2E tests, or working with the message-driven architecture. It ensures adherence to TDD practices, type safety, proper logging, and Manjha's development principles.

Generate new Node.js CLI tool projects using TypeScript with ESM modules, tsc for building, tsx for development, Biome for linting/formatting, and Node's built-in test runner. Use this skill when the user requests to create a new Node TypeScript CLI project or CLI tool.

Use this skill when writing Ruby code following the RuboCop Community Ruby Style Guide. Provides comprehensive guidance on idiomatic Ruby patterns, method design, class structure, collections, strings, exceptions, and testing. Covers Sandi Metz rules, duck typing, metaprogramming guidelines, and RuboCop enforcement. Appropriate for any task involving .rb files, Ruby code reviews, refactoring, Rails development, or implementing Ruby best practices.

Wrap third-party libraries for testability and replaceability. Use when integrating external APIs, creating testable code, or building swappable implementations.

Use when Clawdis needs to test or operate GoHome (Home Assistant clone) via gRPC discovery, metrics, and Grafana.

Writes tests using Vitest and Testing Library. Use when creating unit tests, API tests, component tests, or mocking Firebase/external services. Includes test patterns, assertions, and coverage targets.

Use when user wants to add a new sensor to the Enviro+ monitoring system, or asks to monitor a new data point. Guides through importing libraries, initialization, reading sensor values, publishing to Adafruit IO and Home Assistant, updating documentation, testing, and rate limit verification.

Write tests that verify spec acceptance criteria and requirements. Maps each AC to specific test cases, follows AAA pattern, ensures deterministic isolated tests. Use in parallel with implementation or after.

Container strategies for .NET libraries and test environments. Use when working with Docker test environments, container-based integration testing, or NuGet package container builds. Not typically for production deployment of libraries.