Brian Castelino

agent-skills-kit

AI agent development workflow for building autonomous agents, multi-agent systems, and agent orchestration with CrewAI, LangGraph, and custom agents. Use when designing or implementing AI agents.

Expert in designing and building autonomous AI agents. Masters tool use, memory systems, planning strategies, and multi-agent orchestration. Use when: build agent, AI agent, autonomous agent, tool ...

Production-grade AI engineering for LLM applications, RAG systems, and agent architectures. Use when building AI features, designing model integrations, or implementing AI safety and monitoring.

AI and machine learning workflow covering LLM application development, RAG implementation, agent architecture, ML pipelines, and AI-powered features. Use when building AI or ML systems.

AI product engineering covering LLM integration patterns, RAG architecture, prompt engineering, and production AI systems. Use when building AI-powered product features or shipping LLM applications.

AWS development with infrastructure automation and cloud architecture patterns. Use when building or deploying services on Amazon Web Services.

Data-driven business analysis with modern analytics, BI tools, and strategic insights. Use when analyzing business data, creating dashboards, running experiments, or generating data-driven recommendations.

Applies principles from Robert C. Martin's 'Clean Code'. Use this skill when writing, reviewing, or refactoring code to ensure high quality, readability, and maintainability. Covers naming, functio...

Multi-cloud infrastructure design with AWS, Azure, and GCP. Use when designing cloud architecture, implementing Infrastructure as Code, optimizing costs with FinOps, or building scalable cloud systems.

Cloud infrastructure and DevOps workflow covering AWS, Azure, GCP, Kubernetes, Terraform, CI/CD, monitoring, and cloud-native development. Use when managing cloud infrastructure or CI/CD pipelines.

Code education expert specializing in explaining complex code through clear narratives, visual diagrams, and step-by-step breakdowns. Use when you need to understand or explain unfamiliar code.

You are a documentation expert specializing in creating comprehensive, maintainable documentation from code. Generate API docs, architecture diagrams, user guides, and technical references using AI...

Code refactoring expert specializing in clean code principles, SOLID design patterns, and modern software engineering best practices. Use when refactoring code for readability and maintainability.

Technical debt expert specializing in identifying, quantifying, and prioritizing technical debt in software projects. Use when auditing a codebase for technical debt or planning remediation.

Use when working with code refactoring context restore

Master effective code review practices to provide constructive feedback, catch bugs early, and foster knowledge sharing while maintaining team morale. Use when reviewing pull requests, establishing...

Elite code review expert specializing in modern AI-powered code review. Use when reviewing pull requests or establishing code review standards.

Create commit messages following Sentry conventions. Use when committing code changes, writing commit messages, or formatting git history. Follows conventional commits with Sentry-specific issue re...

SOTA Computer Vision Expert. Specialized in YOLO, Segment Anything, Vision Language Models, and real-time spatial analysis. Use when building or optimizing computer vision systems.

Apply compaction, masking, and caching strategies to optimize context windows. Use when reducing token usage or improving LLM context efficiency.

Expert in CrewAI - the leading role-based multi-agent framework used by 60% of Fortune 500 companies. Covers agent design with roles and goals, task definition, crew orchestration, process types (s...

Scalable data pipelines and modern data architecture. Use when designing batch or streaming pipelines, building data warehouses or lakehouses, or implementing data quality and governance.

Build features guided by data insights, A/B testing, and continuous measurement. Use when implementing data-driven product features or running experiments.

Data pipeline architecture for scalable, reliable, and cost-effective batch and streaming data processing. Use when designing or building data pipelines.

Transform data into compelling narratives using visualization, context, and persuasive structure. Use when presenting analytics to stakeholders, creating data reports, or building executive present...

Advanced analytics and machine learning for data-driven insights. Use when performing statistical analysis, building predictive models, designing experiments, or creating data visualizations.

Cloud cost optimization expert specializing in reducing infrastructure expenses while maintaining performance. Use when analyzing cloud spending or identifying savings opportunities.

High-performance async API development with FastAPI. Use when building production FastAPI services, implementing async patterns, designing microservice architectures, or optimizing API performance.

Select and optimize embedding models for semantic search and RAG applications. Use when choosing embedding models, implementing chunking strategies, or optimizing embedding quality for specific dom...

Database performance tuning and query optimization across platforms. Use when analyzing slow queries, designing indexing strategies, tuning database configurations, or scaling database systems.

Execute database migrations across ORMs and platforms with zero-downtime strategies, data transformation, and rollback procedures. Use when migrating databases, changing schemas, performing data tr...

Database design principles and decision-making covering schema design, indexing strategy, ORM selection, and serverless databases. Use when designing or evaluating database schemas.

Create FastAPI routers with CRUD operations, authentication dependencies, and proper response models. Use when building REST API endpoints, creating new routes, implementing CRUD operations, or add...

Use when working with full stack orchestration full stack feature

Create production-ready FastAPI projects with async patterns, dependency injection, and comprehensive error handling. Use when building new FastAPI applications or setting up backend API projects.

Game development orchestrator that routes to platform-specific skills based on project needs. Use when building games or game-related systems.

Building production-ready serverless applications on GCP with Cloud Run services and Cloud Run Functions. Use when deploying containerized or event-driven applications on Google Cloud.

Create production-ready GitHub Actions workflows for automated testing, building, and deploying applications. Use when setting up CI/CD with GitHub Actions, automating development workflows, or cre...

Automate GitHub workflows with AI assistance. Includes PR reviews, issue triage, CI/CD integration, and Git operations. Use when automating GitHub workflows, setting up PR review automation, creating CI/CD pipelines, or integrating AI into DevOps.

Master advanced Git workflows including rebasing, cherry-picking, bisect, worktrees, and reflog to maintain clean history and recover from any situation. Use when managing complex Git histories, co...

Automate GitHub repositories, issues, pull requests, branches, CI/CD, and permissions via MCP. Use when managing code workflows or automating GitHub operations programmatically.

Execute Hugging Face Hub operations using the `hf` CLI. Use when the user needs to download models/datasets/spaces, upload files to Hub repositories, create repos, manage local cache, or run comput...

This skill should be used when users want to run any workload on Hugging Face Jobs infrastructure. Covers UV scripts, Docker-based jobs, hardware selection, cost estimation, authentication with tokens, scheduled jobs, and result persistence.

Expert in LangGraph, the production-grade framework for building stateful, multi-actor AI applications. Use when building agent graphs, managing state, or implementing persistence with checkpoints.

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate exte...

Build end-to-end MLOps pipelines from data preparation through model training, validation, and production deployment. Use when creating ML pipelines, implementing MLOps practices, or automating mod...

ML infrastructure automation and production ML lifecycle management. Use when building ML pipelines, setting up experiment tracking, implementing CI/CD for models, or managing model deployments.

Production machine learning systems and model serving infrastructure. Use when building ML pipelines, deploying models to production, implementing feature stores, or optimizing inference performance.

Expert guidance for distributed NoSQL databases (Cassandra, DynamoDB). Focuses on mental models, query-first modeling, single-table design, and avoiding hot partitions in high-scale systems.

Use this skill to query your Google NotebookLM notebooks for source-grounded, citation-backed answers from Gemini. Browser automation, library management, persistent auth.

Comprehensive PDF manipulation toolkit for extracting text and tables, creating new PDFs, merging/splitting documents, and handling forms. Use when working with PDF files programmatically.

Postgres performance optimization and best practices from Supabase. Use this skill when writing, reviewing, or optimizing Postgres queries, schema designs, or database configurations.

Design PostgreSQL-specific schemas covering best practices, data types, indexing, constraints, performance patterns, and advanced features. Use when designing or optimizing PostgreSQL databases.

Python project architecture expert for scaffolding production-ready applications with modern tooling (uv, FastAPI, Django) and type hints. Use when creating new Python project structures.

Set up Prometheus for comprehensive metric collection, storage, and monitoring of infrastructure and applications. Use when implementing metrics collection, setting up monitoring infrastructure, or...

Presentation creation, editing, and analysis. Use when working with presentations (.pptx files) for creating, modifying, or analyzing PowerPoint content and layouts.

Python FastAPI backend development with async patterns, SQLAlchemy, Pydantic, authentication, and production API patterns. Use when building FastAPI backend services.

Modern Python 3.12+ development with cutting-edge tools and practices. Use when writing production Python code, implementing async patterns, optimizing performance, or setting up modern Python tooling.

Implement comprehensive testing strategies with pytest, fixtures, mocking, and test-driven development. Use when writing Python tests, setting up test suites, or implementing testing best practices.

Expert in building Retrieval-Augmented Generation systems. Masters embedding models, vector databases, chunking strategies, and retrieval optimization for LLM applications. Use when: building RAG, ...

RAG (Retrieval-Augmented Generation) implementation workflow covering embedding selection, vector database setup, chunking strategies, and retrieval optimization. Use when building RAG systems.

Use when completing tasks, implementing major features, or before merging to verify work meets requirements

Scientific research and analysis skills. Use when performing scientific analysis, literature review, or research methodology design.

Guide for quality focused software architecture. This skill should be used when users want to write code, design architecture, analyze code, in any case that relates to software development.

Optimize Apache Spark jobs with partitioning, caching, shuffle optimization, and memory tuning. Use when improving Spark performance, debugging slow jobs, or scaling data processing pipelines.

Master SQL query optimization, indexing strategies, and EXPLAIN analysis to dramatically improve database performance and eliminate slow queries. Use when debugging slow queries, designing database...

Advanced SQL across modern database systems and cloud platforms. Use when writing complex queries, optimizing SQL performance, designing analytical patterns, or working with cloud-native databases.

Temporal workflow orchestration with the Python SDK. Use when building durable workflows, implementing distributed transactions, designing activity patterns, or deploying Temporal workers.

Generate comprehensive, maintainable unit tests across languages with strong coverage and edge case focus. Use when writing test suites or improving test coverage.

Master the uv package manager for fast Python dependency management, virtual environments, and modern Python project workflows. Use when setting up Python projects, managing dependencies, or optimi...

Audit rapidly generated or AI-produced code for structural flaws, fragility, and production risks. Use when evaluating prototype or AI-generated code for production readiness.

Advanced vulnerability analysis covering OWASP 2025, Supply Chain Security, attack surface mapping, risk prioritization. Use when auditing code or infrastructure for security vulnerabilities.

Analyzes job descriptions and generates tailored resumes that highlight relevant experience, skills, and achievements to maximize interview chances. Use when applying for jobs, customizing resumes for different roles, or optimizing for ATS systems.

Download YouTube videos with customizable quality and format options. Use when the user asks to download, save, or grab YouTube videos. Supports various quality settings (best, 1080p, 720p, 480p, 360p), multiple formats (mp4, webm, mkv), and audio-only downloads as MP3.

Extract transcripts from YouTube videos and generate comprehensive, detailed summaries. Use when summarizing video content or extracting key insights from YouTube.

Interactive assistant that scaffolds new Agent Skills. Use this when the user wants to create, write, or generate a new skill.

Example/template skill demonstrating SKILL.md structure and resources.