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Performance Optimization
Development
Provides guidance on performance optimization including profiling (CPU, memory, I/O), caching layers (CDN, application, database), connection pooling, lazy loading, code splitting, database query optimization, and load balancing. Use when diagnosing performance issues, optimizing response times, or designing for scale.
TDD Workflow
Development
Forces a test-driven development (TDD) workflow, automatically activating when implementing new features, fixing bugs, or refactoring. It guides the Red-Green-Refactor cycle, requiring test creation before any code and user approval of test cases. Integrated with pytest, ruff, and mypy for testing and code quality.
Advanced Code Search
Development
Advanced code search tool that locates definitions, usages, tests, and references for any symbol across the entire codebase. It helps developers understand how a function, class, or variable is used throughout the project. More powerful than simple text search as it understands code structure and groups results by category.
UV Package Manager
Development
uv is an extremely fast Python package installer and resolver written in Rust. Use it for setting up Python projects, managing dependencies, creating virtual environments, and resolving dependency conflicts. This skill covers workflows with uv including lockfiles, migration from pip/poetry, and CI/CD pipeline optimization.
EPUB Multilingual Translator
Content
Translates EPUB ebook files between languages (Japanese, English, Chinese, etc.) using parallel processing. Splits large files into sections, handles multiple volumes simultaneously, and preserves EPUB structure and formatting. Best for translating novels or any EPUB content.
Create a Pull Request with workon
Development
Creates a pull request using the workon CLI. It gathers context, offers code review, and generates content for the PR before requiring explicit user approval. Helps when code is ready for review or the user says 'create a PR'.
New Skill Creator
Development
Creates a new Claude Code skill with a test file using the skill-builder scaffold tool. It walks through choosing a kebab-case name, setting user-invocable flag, and selecting local (repo-specific) or global installation. Ideal when you need to quickly bootstrap a new skill with proper structure and tests.
OpenSCAD Context Loader
Development
Loads an OpenSCAD file and recursively parses its dependencies (use/include), resolving library paths and extracting the API surface (modules, functions, parameters). Helps debug rendering errors and understand module dependencies before refactoring.
Document Converter
Development
Converts documents bidirectionally between Markdown, DOCX, and PDF formats. Handles text extraction from PDF and DOCX files, as well as generating documents from Markdown. Use when converting document formats or extracting structured content from Word or PDF files.
Twilio SMS via uni CLI
Communication & Writing
Send and manage SMS messages via Twilio from the terminal. Supports sending SMS, checking message status, and listing sent messages.
Jules Agent SDK
Development
Interact with the Jules AI agent via its official Python SDK. Manage sessions, monitor activities, approve plans, and integrate GitHub sources. Handles authentication, polling, and session resumption automatically.
Documentation Generation Agent
Documentation
Generates comprehensive, well-structured documentation (API docs, READMEs, code comments, tutorials) at high volume. Helps development teams quickly produce detailed docs for existing or new code, including examples and edge case coverage.