Claude Skills

This skill automatically generates Jest-based unit tests for JavaScript and TypeScript code, creating test files that follow Jest conventions. It produces comprehensive test suites with proper mocking, describe blocks, and coverage for modules and React components. Use it to quickly add missing test coverage or generate Jest-specific patterns like spies and snapshots.

This Claude Skill implements features by generating code, tests, and documentation, following approved designs. It is used after the design phase to build features while adhering to TDD and project coding standards. The skill utilizes tools like Read, Write, Edit, and Bash to systematically develop high-quality software.

This is a template skill for testing file permissions that developers can customize for their specific use cases. It provides a basic structure with sections for instructions, usage examples, and troubleshooting guidance. The skill is designed to be invoked by Claude Code when file permission testing tasks match its description.

This skill enables developers to manage GitHub operations through Claude, including creating milestones with titles, descriptions, and due dates. It handles authentication checks, repository information retrieval, and milestone creation via GitHub CLI commands. Use this for automating common GitHub repository management tasks directly from your development workflow.

The xlsx skill enables Claude to comprehensively work with spreadsheet files for creation, editing, and analysis. It supports formulas, formatting, data analysis, and visualization while preserving existing structures when modifying files. Use this skill when you need to create, read, modify, or analyze spreadsheet data with guaranteed formula integrity.

This skill analyzes urban development projects through planning frameworks like zoning, land use, and transit-oriented development. It provides insights on spatial organization, infrastructure, sustainability, and livability. Use it for zoning decisions, transportation planning, and sustainability initiatives to evaluate density, accessibility, and environmental impact.

This skill analyzes events through core sociological frameworks including functionalist, conflict, and symbolic interactionist perspectives. It provides insights on social patterns, group dynamics, inequality, and social change by evaluating social structures, power relations, and cultural norms. Use it when examining social movements, institutional behavior, cultural trends, or collective action.

This Claude Skill analyzes technical systems and problems using engineering principles like first principles and systems thinking. It provides insights on feasibility, performance, reliability, and trade-offs during system design, optimization, or failure analysis. Use it to evaluate requirements, constraints, and technical decisions for robust and scalable solutions.

The economist-analyst skill analyzes events through an economic lens, applying concepts like supply/demand, incentive structures, and multiple schools of economic thought. It provides insights on market impacts, resource allocation, and policy implications for scenarios like economic events, policy changes, and market shifts. Use this skill to evaluate incentives, efficiency, opportunity costs, and systemic risks.

This skill enables developers to create, edit, and analyze Word documents programmatically. It supports tracked changes via a recommended redlining workflow, which is essential for legal, academic, and business documents. The skill also provides methods for text extraction, raw XML access, and basic OOXML editing for different document manipulation tasks.

This skill handles Firebase/Firestore operations including CRUD, queries, and batch processing for standard applications. It also supports advanced A2A agent communication patterns and integrates with MCP servers and Cloud Run services. Use it when working with Firestore operations, agent-to-agent messaging, or Cloud Run integration.

This skill automates budget versus actual variance analysis in Excel for financial reporting and FP&A teams. It generates a comprehensive report with variance flagging, commentary, and executive summaries. It activates when a user requests variance analysis, such as comparing actuals to a forecast or creating a variance report.

This skill builds professional Excel-based Discounted Cash Flow (DCF) models for investment banking and corporate finance use. It automatically activates when users request DCF functionality, valuation models, or intrinsic value calculations. The tool creates comprehensive models featuring free cash flow projections, WACC calculations, and sensitivity analysis across multiple structured worksheets.

This skill enables Claude to perform regression analysis and modeling using a dedicated plugin. It automatically analyzes datasets, generates models (like linear or polynomial), validates them, and provides performance metrics. Use it when users request regression analysis, predictive modeling, or need to understand variable relationships in their data.

This skill enables Claude to build recommendation systems using collaborative filtering, content-based filtering, or hybrid approaches. It analyzes user preferences, item features, and interaction data to generate personalized recommendations. Use it when you need to implement a recommendation engine, rank items by relevance, or work with algorithms like collaborative or content-based filtering.

This Claude Skill enables text analysis using natural language processing through the nlp-text-analyzer plugin. It performs sentiment analysis, keyword extraction, and topic modeling on textual data when triggered by NLP-related requests. Developers should use this skill for extracting insights from text using AI/ML techniques.

This Claude skill enables developers to create and modify neural network architectures using the neural-network-builder plugin. It handles requests for building new networks, configuring layers, parameters, and training processes for various network types like CNNs, RNNs, and transformers. Use this skill when you need assistance with defining or refining neural network structures.

This skill enables Claude to explain machine learning model predictions and behavior using techniques like SHAP and LIME. It provides feature importance analysis and model interpretability for debugging performance, ensuring fairness, or communicating insights to stakeholders. Use it when you need to understand why a model makes specific predictions or to identify influential features.

This skill manages A2A (Agent-to-Agent) communication for orchestrating Vertex AI ADK agents, handling AgentCard discovery, task submission, and status polling. It enables developers to build and deploy multi-agent systems on Google's Agent Engine with capabilities for agent orchestration and session management. Key features include an observability dashboard, Cloud Trace integration, and BigQuery analytics export for production monitoring.

This Claude Skill automates ML experiment tracking setup for tools like MLflow or Weights & Biases when triggered by requests to initialize tracking. It configures the environment, sets up tracking servers when needed, and provides ready-to-use code snippets for logging parameters, metrics, and artifacts. Use this skill to ensure reproducibility and simplify model run comparisons in your ML projects.

This skill enables Claude to orchestrate multi-agent systems using the AI SDK v5, allowing developers to create coordinated workflows with agent handoffs and intelligent routing. It supports multiple AI providers like OpenAI, Anthropic, and Google for building complex multi-agent applications. Use this when you need to coordinate specialized agents, manage task routing, or implement sophisticated agent collaboration systems.

This skill enables Claude to automatically validate AI/ML models and datasets for ethical concerns and potential biases. It triggers when users request fairness assessments, bias detection, or ethics reviews using related keywords. The skill analyzes systems and provides mitigation recommendations to support responsible AI development.

This skill enables Claude to execute visual regression tests using tools like Percy and Chromatic to capture screenshots and compare them against baselines. It automatically identifies unintended UI changes by analyzing visual differences in web applications or components. Use it when you need to verify UI changes, perform regression testing, or check for visual inconsistencies.

This skill automatically generates comprehensive unit tests from source code when developers request test creation. It supports multiple testing frameworks like Jest, pytest, and JUnit, intelligently detecting the appropriate one or using a specified framework. Use it when asking to "generate tests," "create unit tests," or using the "gut" shortcut with file paths.