1. Software Development

Generates and refactors Vue 3 composables adhering to best practices for reusable frontend logic.

Provides a domain model for workout blocks including types (strength, AMRAP, EMOM), operations, and persistence handling for fitness application development.

Provides Vitest-specific mocking patterns for tests, including module mocking, global stubbing, and test double strategies to verify behavior.

Generates Vue 3 integration tests using Vitest Browser Mode and Page Objects for UI interactions, navigation, and multi-component workflows.

Creates isolated Git worktrees for feature development with smart directory selection and safety verification to prevent workspace conflicts.

Verifies test effectiveness by introducing code mutations to identify weak or missing tests in software.

Provides a type-safe repository pattern for Dexie/IndexedDB with standardized CRUD operations and schema management.

Creates a version-controlled commit for completed work units, enabling seamless handoff between developers.

Enables implementation of new TCL built-in commands and subcommands within the feather tool.

Aligns built-in functionality with TCL scripting behavior to ensure consistent cross-language compatibility in development environments.

Offers external code review and architecture validation using OpenAI Codex MCP for complex development challenges and debugging.

Provides external perspective for code analysis, architecture advice, and debugging guidance through a read-only Codex CLI interface, offering suggestions without implementing changes.

Provides expert guidance on React hooks best practices, including code review, performance optimization, and custom hook design.

Analyzes and refines existing Claude Code Skills to enhance conciseness and effectiveness, optimizing for better performance and clarity.

Provides guidance for creating conventional commit messages, determining commit scope, and applying semantic versioning best practices.

Automates setup of Claude Code skills for web projects by generating configuration files and auto-update hooks.

Provides standardized testing conventions for Vitest and Playwright, covering query patterns, test isolation, and realistic user flows to ensure reliable and maintainable tests.

Designs and composes effect layers to manage dependencies cleanly in state management systems, enhancing code organization and maintainability.

Writes comprehensive tests for Effect-based applications using @effect/vitest and vitest, covering services, layers, time-dependent effects, and error handling.

Builds composable React components using Effect Atom for state management, avoiding boolean props and enabling reactive UIs.

Provides cross-platform abstractions for file I/O, process spawning, HTTP clients, and terminal operations to ensure code portability across Node.js, Bun, and browser environments.

Implements services as fine-grained capabilities to avoid monolithic designs, promoting modular and maintainable architecture.

Provides pattern matching utilities for discriminated unions and ADTs using Effect.match and Data.TaggedEnum, eliminating manual tag checks.

Enables reactive, testable state management in React using View Model pattern with Effect-Atom for bridging domain services and UI.