Claude Skills

This skill helps developers identify unifying principles that can eliminate multiple redundant components simultaneously. It's most valuable when complexity is spiraling due to special cases or multiple implementations of similar concepts. The approach focuses on finding core insights that collapse complexity by abstracting common patterns and eliminating unnecessary variations.

The Scale Game skill helps developers test systems at extreme scales (1000x bigger/smaller, instant/year-long) to expose fundamental truths hidden at normal operation. It's used when uncertain about scalability, edge cases, or validating architecture for production volumes. The technique reveals algorithmic limits, concurrency issues, and error handling adequacy by testing across dimensions like volume, speed, and users.

This skill identifies recurring patterns across three or more different domains to extract universal principles. It is designed for use when developers notice the same pattern in varied contexts or experience déjà vu in problem-solving. The skill helps abstract these patterns, such as caching or queuing, to apply core principles to new systems.

The Inversion Exercise skill helps developers challenge core assumptions by systematically considering their opposites, revealing hidden constraints and alternative solutions. It is most useful when feeling stuck on a single approach or forced into "the only way" to solve a problem. This technique flips assumptions to expose new possibilities like debouncing, prefetching, or designing for simplicity.

Collision-Zone Thinking is a technique for generating breakthrough innovation by forcing unrelated concepts together, such as treating code organization like DNA. It is best used when conventional approaches are inadequate and you need to discover novel, emergent solutions. The method works by deliberately mixing metaphors to reframe problems and unlock new perspectives.

This skill provides comprehensive guidance for PostgreSQL's psql interactive terminal client. Use it when connecting to databases, executing queries, managing database objects, or writing SQL scripts. It covers essential psql features for both interactive use and automation in database administration and development.

This Claude Skill provides comprehensive guidance for implementing Next.js applications using modern App Router architecture. It covers key features like Server Components, data fetching, routing, and performance optimization for Next.js v15+. Use this skill when building full-stack applications that require server-side rendering, static generation, or migration from Pages Router.

This MongoDB skill provides comprehensive guidance for implementing and optimizing MongoDB databases, including CRUD operations, aggregation pipelines, indexing, and performance tuning. Use it when designing schemas, writing queries, configuring deployments (Atlas/self-managed/Kubernetes), or integrating applications with MongoDB's official drivers. It covers essential features like replication, sharding, search capabilities, and security implementation.

mcp-builder is a development guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use it when building MCP servers to integrate external APIs or services in either Python (FastMCP) or Node/TypeScript (MCP SDK). It provides a structured workflow for developing agent-centric tools that help LLMs accomplish real-world tasks.

This Claude Skill provides developers with a guide for using ImageMagick's command-line tools to programmatically manipulate images. It enables common image processing tasks like format conversion, resizing, cropping, applying effects, and batch operations. Use this skill when you need to automate image manipulation via shell commands.

The gemini-vision skill enables Claude to implement Google's Gemini API for advanced image analysis. It provides capabilities for image captioning, classification, visual QA, object detection, segmentation, and multi-image comparison. Use this skill when building applications that require processing images, answering visual questions, or detecting objects in visual content.

This Claude Skill enables developers to analyze video content using Google's Gemini API, including YouTube URLs. It can describe video content, answer questions, transcribe audio with timestamps, and create video clips. Use it when you need to process videos up to 6 hours long across 9 formats with large context window support.

This Claude Skill provides a guide for implementing Google Gemini API image generation using the gemini-2.5-flash-image model. It enables developers to create high-quality images from text prompts and supports image editing, multi-image composition, and iterative refinement. Use it when building text-to-image features or generating visual content for projects.

This skill provides a guide for implementing Google Gemini API to process PDF documents using native vision capabilities. It enables developers to extract text, images, diagrams, charts, and tables, and supports tasks like structured data extraction, summarization, and document Q&A. Use it when you need to analyze complex documents and convert their content into structured formats.

This skill enables developers to implement Google Gemini API's audio capabilities for both analysis and generation. It can transcribe, summarize, and analyze audio files up to 9.5 hours long, as well as generate natural speech from text with controllable TTS. Use it for processing podcasts, meetings, or any project requiring robust audio-to-text or text-to-speech functionality.

This Claude Skill provides comprehensive guidance for implementing and using the Google Cloud SDK (gcloud CLI) to manage Google Cloud resources. Use it for installing/configuring gcloud, authenticating with Google Cloud, deploying applications, and working with services like Compute Engine and GKE. It's particularly helpful for scripting operations, implementing CI/CD pipelines, and troubleshooting Google Cloud deployments.

This Claude Skill provides guidance for using FFmpeg, the comprehensive multimedia framework for video and audio processing. Developers should use it when converting media formats, encoding/decoding with various codecs, applying filters, or handling streaming workflows. It covers essential FFmpeg operations through command-line tools and libraries.

The xlsx skill enables Claude to create, edit, and analyze spreadsheets in formats like .xlsx and .csv. It supports key operations including formula implementation, data analysis, visualization, and modifying files while preserving existing structures. Developers should use this skill when Claude needs to perform spreadsheet-related tasks that require maintaining formula integrity and formatting.

The pptx skill enables Claude to programmatically create, edit, and analyze PowerPoint presentations. It provides capabilities for generating new presentations, modifying content, working with layouts, and handling comments or speaker notes. Developers can use this skill when Claude needs to process .pptx files through XML manipulation or markdown conversion.

This PDF manipulation toolkit enables developers to programmatically process, generate, and analyze PDF documents at scale. It provides capabilities for extracting text and tables, creating new PDFs, and merging or splitting documents. Use this skill when Claude needs to handle PDF forms or perform batch operations on PDF files.

This skill enables Claude to create, edit, and analyze .docx documents programmatically. It supports key Word features like tracked changes, comments, and formatting preservation while allowing text extraction and XML access. Use this when you need to generate, modify, or examine professional documents within your development workflow.

The docs-seeker skill enables developers to search for technical documentation using multiple parallel strategies, including the llms.txt standard and GitHub repository analysis via Repomix. It's designed for finding the latest library/framework docs, handling both llms.txt-formatted content and traditional documentation sources. Use this skill when you need comprehensive documentation discovery across multiple sources simultaneously.

This Docker skill provides comprehensive guidance for containerizing applications using Dockerfiles, Docker Compose, and container management. Use it when building, optimizing, and deploying applications in isolated containers across development and production environments. It also covers implementing CI/CD pipelines and configuring networking, storage, and security.

This Claude Skill enforces running verification commands and confirming their output before claiming work is complete. It requires developers to execute fresh verification tests, check exit codes, and validate results before committing code or creating PRs. The skill acts as a mandatory gate to ensure evidence-based completion claims across all programming languages.