1. Software Development

Enforces separation of concerns by ensuring each class and method has a single responsibility in code design and refactoring.

Fixes 'Unauthorized' errors in Convex mutations from Next.js by ensuring secrets are correctly configured in both Next.js .env.local and Convex environment variables.

Fixes Tauri v2 app crash on WSL2 startup due to gdk-pixbuf icon loading issue by configuring empty icon array in tauri.conf.json.

Provides validation utilities for API payloads, form inputs, and database writes using Pydantic and Zod schemas.

Provides configuration templates, prompting strategies, debugging techniques, and best practices for effectively using Claude Code in software development.

Fixes Next.js OG image build errors caused by invalid CSS display values using flex and alignSelf instead of inline-block.

Provides standard Node.js platform functions for the East programming language, including I/O, file system, HTTP, cryptography, and testing utilities.

Visualizes the hierarchical feature structure of a software project to clarify organization and scope for developers.

Provides structured error handling patterns for backend and frontend code, including try-catch, custom exceptions, and user-friendly error responses.

Enables building LLM-powered React applications with generative UIs, client-side tool calling, and safe sandboxed execution of LLM-generated code.

Fixes infinite loops, scene cycling failures, and callback issues in scene stack demo modes for game engines and UI frameworks.

Analyzes Vitest test failure errors to quickly identify root causes and resolve test issues efficiently.

Creates logical Git commits from working tree changes, enabling organized version control and progress saving during software development.

Guides developers through the Red-Green-Refactor TDD cycle, ensuring test-first implementation with failing tests, minimal solutions, and strategic refactoring.

Solves silent IPC failures in Tauri browser testing by addressing undefined window.__TAURI__ and providing test workarounds.

Creates and configures FastAPI backend applications with route handlers, dependencies, CORS, and Pydantic models.

Applies scientific method to software development, treating tasks as experiments with hypotheses, measurements, and controlled variables to validate decisions and explore unknowns.

Manages GitHub Copilot coding agent tasks including listing, viewing session logs, and creating new tasks for developers.

Optimizes feedback speed and quality in system design and architecture choices, based on Dave Farley's Modern Software Engineering principles.

Enables implementation of Flutter animations including implicit/explicit transitions, hero effects, and physics-based motion for interactive UIs.

Provides step-by-step, test-preserving refactorings based on Martin Fowler's book to improve code structure safely during development.

Comprehensive guidelines for building iOS, iPadOS, watchOS, and macOS applications using SwiftUI, UIKit, and architecture patterns.

Comprehensive TypeScript guidance covering configuration, type safety, error resolution, and best practices for efficient codebase development.

Enforces small-batch, incremental development with fast feedback loops to maintain momentum during feature implementation and refactoring, based on Modern Software Engineering principles.