1. Software Development

Refactors code in Test-Driven Development (TDD) while maintaining test coverage, executed after passing tests (GREEN phase).

Sets up TDD environment in existing projects by detecting frameworks, generating CLAUDE.md, and creating status documentation.

Enforces best practices for building scalable, high-performance, and maintainable APIs using the FastAPI framework in Python.

Provides Go-specific best practices, idioms, error handling, concurrency patterns, and testing guidance for writing and reviewing code.

Generates meta-patterns from existing patterns to enhance code structure, reusability, and design in software development workflows.

Provides C# best practices, modern patterns, .NET Core, ASP.NET, testing, and LINQ guidance for writing, reviewing, and debugging code.

Automates Git commits to complete TDD cycles after test validation.

A chaos engineering tool that identifies unconventional edge cases and tests system resilience through creative failure scenarios and assumption-challenging techniques.

Provides best practices for unit, integration, and end-to-end testing, including coverage strategies and flaky test diagnosis.

Provides PEP 8 guidance, type hints, pytest testing, and async pattern recommendations for writing, reviewing, and debugging Python code.

Creates implementation plans and defines test lists as the next phase after INIT in Test-Driven Development workflows.

Verifies code adherence to project standards after modifications, writing, and implementation completion.

Guides Java development with best practices, modern patterns, Spring Boot, testing, and architecture advice for writing and debugging code.

Manages skill navigation and state transitions using monadic memory structures, enabling structured interactions between modular components.

Automates parallel code review from four perspectives, blocking PRs with trust scores of 80 or above, integrated with TDD workflows.

Executes ESLint, Prettier, and Jest for JavaScript code quality, static analysis, and formatting.

Guides test-first development for core domain layers (Domain, UseCase, Service) using Red-Green-Refactor cycle.

Assists in improving code quality during TDD's Refactor phase by removing duplication, enhancing clarity, and optimizing performance while maintaining passing tests.

Builds brand-consistent frontend interfaces using the 'README-as-Database' pattern and renders content as rich Open Graph cards.

Expert in SQLite database development for Tauri/desktop applications with emphasis on security, migrations, and FTS search.

Audits project structure, configuration, dependency health, and technical debt to ensure maintainable and high-quality codebases.

Analyzes PRD requirements to derive test cases, enabling Inside-Out TDD by defining test scenarios prior to implementation.

Provides TypeScript best practices, strict typing, ESLint configuration, and testing patterns for efficient code development and review.

Generates new assistant skills by combining existing patterns through forced conceptual collision, enabling autopoietic meta-skill creation.