Prevents 30+ critical AI/ML mistakes including data leakage, evaluation errors, training pitfalls, and deployment issues. Use when working with ML training, testing, model evaluation, or deployment.

Comprehensive testing workflow combining TDD, real implementations (no mocking), and E2E testing. Use when implementing features, writing tests, or setting up test infrastructure.

Comprehensive project planning and documentation generator for software projects. Creates structured requirements documents, system design documents, and task breakdown plans with implementation tracking. Use when starting a new project, defining specifications, creating technical designs, or breaking down complex systems into implementable tasks. Supports user story format, acceptance criteria, component design, API specifications, and hierarchical task decomposition with requirement traceability.

Generate high-quality, minimalistic, and geometric SVG logos using Python scripts. Use this skill when users need to create logos, icons, or visual identities with geometric primitives (circles, rects, paths) and specific color schemes. Applies generative design principles with standardized workflows for scalable SVG output.

Verwandelt den Agenten in einen professionellen MV3-Architekten und Entwickler mit Fokus auf AI-Integration, Sicherheit, Performance, Testing und Publishing-Compliance.

/chrome-ai-extension-skill/

Use when creating new skills, editing existing skills, or verifying skills work before deployment - applies TDD to process documentation by testing with subagents before writing, iterating until bulletproof against rationalization

Diagnoses and debugs A2A agent communication issues including agent status, message routing, transport connectivity, and log analysis. Use when agents aren't responding, messages aren't being delivered, routing is incorrect, or when debugging orchestrator, coder-agent, tester-agent communication problems.

Write minimal, focused tests for core user flows and critical paths during development, testing behavior rather than implementation with clear test names and mocked dependencies. Use this skill when writing unit tests, integration tests, test files, test cases for critical workflows, or mocking external dependencies. Apply when working with test files (.test.js, .spec.ts, _test.py), test frameworks (Jest, RSpec, pytest), testing user journeys, or implementing fast-executing tests that validate business-critical functionality without over-testing implementation details or edge cases during feature development.

Enterprise-grade browser automation using WebDriver protocol. Use when the user needs to automate web browsers, perform web scraping, test web applications, fill forms, take screenshots, monitor performance, or execute multi-step browser workflows. Supports Chrome, Firefox, and Edge with connection pooling and health management.

Introduces property-based testing with proptest, helping users find edge cases automatically by testing invariants and properties. Activates when users test algorithms or data structures.

Quick start guide for creating MCP servers with the rmcp crate - installation, concepts, and first server

Type-driven design patterns in Rust - typestate, newtype, builder pattern, and compile-time guarantees

**Goal**: Create comprehensive PRDs, tech specs, and ux specs based on feature requirements

Generate structured, actionable task roadmaps from project specifications (PRD, Tech Specs, UI/UX Specs).

Test-Driven Development (TDD) using Vitest and TypeScript. Use when the user requests help with TDD, writing tests before code, test-first development, Vitest test setup, TypeScript testing patterns, unit testing, integration testing, or following the Red-Green-Refactor cycle with Vitest.

Create single-file HTML prototypes focused on validating user flows, interaction patterns, and information architecture. Prioritize UX fidelity over visual polish.

Browser automation tool using Playwright - captures screenshots and extracts content from web pages

Guide for setting up and using Firebase Authentication. Use this skill when the user's app requires user sign-in, user management, or secure data access using auth rules.

The definitive, foundational skill for ANY Firebase task. Make sure to ALWAYS use this skill whenever the user mentions or interacts with Firebase, even if they do not explicitly ask for it. This skill covers everything from the bare minimum INITIAL setup (Node.js setup, Firebase CLI installation, first-time login) to ongoing operations (core principles, workflows, building, service setup, executing Firebase CLI commands, troubleshooting, refreshing, or updating an existing environment).

firecrawl-map

firecrawl-scrape

firecrawl-search

Generate walkthrough videos from Stitch projects using Remotion with smooth transitions, zooming, and text overlays

Unified entry point for Stitch design work. Handles prompt enhancement (UI/UX keywords, atmosphere), design system synthesis (.stitch/DESIGN.md), and high-fidelity screen generation/editing via Stitch MCP.

Automatically share skills, migrate local skills to code repositories, open source skills, skill version management, configure git remote

Create AI marketing videos for ads, promos, product launches, and brand content. Models: Veo, Seedance, Wan, FLUX for visuals, Kokoro for voiceover. Types: product demos, testimonials, explainers, social ads, brand videos. Use for: Facebook ads, YouTube ads, product launches, brand awareness. Triggers: marketing video, ad video, promo video, commercial, brand video, product video, explainer video, ad creative, video ad, facebook ad video, youtube ad, instagram ad, tiktok ad, promotional video, launch video

Tool lifecycle components from [ui.inference.sh](https://ui.inference.sh).

web-search

Retrieve up-to-date documentation for software libraries, frameworks, and components via the Context7 API. This skill should be used when looking up documentation for any programming library or framework, finding code examples for specific APIs or features, verifying correct usage of library functions, or obtaining current information about library APIs that may have changed since training.

Turn a product brief, campaign idea, or reference image into MaxArt-ready image and video prompt packs, shot lists, style directions, and creative variation plans. Use when the user wants ads, social creatives, product shots, stylized edits, text-to-image prompts, image-to-video motion plans, or reusable prompt systems intended to be rendered in MaxArt.ai.

Keeps IdeaVim documentation in sync with code changes. Use this skill when you need to verify documentation accuracy after code changes, or when checking if documentation (in doc/, README.md, CONTRIBUTING.md) matches the current codebase. The skill can work bidirectionally - from docs to code verification, or from code changes to documentation updates.

tailwind-v4-shadcn

Analyze article structure and content, identify positions requiring visual aids, and generate illustrations with flexible style options.

Generate hand-drawn style cover images for articles with multiple style options.

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Cloud laboratory platform for automated protein testing and validation. Use when designing proteins and needing experimental validation including binding assays, expression testing, thermostability measurements, enzyme activity assays, or protein sequence optimization. Also use for submitting experiments via API, tracking experiment status, downloading results, optimizing protein sequences for better expression using computational tools (NetSolP, SoluProt, SolubleMPNN, ESM), or managing protein design workflows with wet-lab validation.

Access BRENDA enzyme database via SOAP API. Retrieve kinetic parameters (Km, kcat), reaction equations, organism data, and substrate-specific enzyme information for biochemical research and metabolic pathway analysis.

Multiagent AI system for scientific research assistance that automates research workflows from data analysis to publication. This skill should be used when generating research ideas from datasets, developing research methodologies, executing computational experiments, performing literature searches, or generating publication-ready papers in LaTeX format. Supports end-to-end research pipelines with customizable agent orchestration.

Query Ensembl genome database REST API for 250+ species. Gene lookups, sequence retrieval, variant analysis, comparative genomics, orthologs, VEP predictions, for genomic research.

Query NCBI Gene via E-utilities/Datasets API. Search by symbol/ID, retrieve gene info (RefSeqs, GO, locations, phenotypes), batch lookups, for gene annotation and functional analysis.

Direct REST API access to KEGG (academic use only). Pathway analysis, gene-pathway mapping, metabolic pathways, drug interactions, ID conversion. For Python workflows with multiple databases, prefer bioservices. Use this for direct HTTP/REST work or KEGG-specific control.

Query STRING API for protein-protein interactions (59M proteins, 20B interactions). Network analysis, GO/KEGG enrichment, interaction discovery, 5000+ species, for systems biology.

Direct REST API access to UniProt. Protein searches, FASTA retrieval, ID mapping, Swiss-Prot/TrEMBL. For Python workflows with multiple databases, prefer bioservices (unified interface to 40+ services). Use this for direct HTTP/REST work or UniProt-specific control.

Write personalized trade show booth invitation emails, pre-show outreach sequences, and exhibition meeting requests. Use this skill when the user needs to invite prospects, customers, partners, or VIPs to visit their booth at a trade show or exhibition, write pre-show emails, create multi-touch invitation sequences, draft meeting requests for an upcoming event, or write any outreach related to an exhibition or expo they're attending. Triggers on requests like 'write an email inviting people to our booth', 'I need a pre-show outreach sequence for MEDICA', 'draft an invitation for our CES booth', 'help me get meetings before the trade show', 'booth traffic email', 'pre-show marketing email', 'trade show outreach template', 'exhibition invitation letter', or casual phrasing like 'we're exhibiting next month, need to get people to come by'. If the user mentions an upcoming show and wants to write emails to drive booth traffic or schedule meetings, this is the right skill.

Find, compare, and research trade shows, exhibitions, expos, and industry events by vertical, region, date, or audience. Use this skill whenever the user wants to discover which trade shows exist for their industry, compare multiple events side-by-side, decide which shows are worth attending or exhibiting at, look up event dates and venues, research exhibitor counts or visitor profiles, or plan an annual trade show calendar. Also triggers on questions like 'what are the best shows for [industry]', 'when is [show name]', 'should we go to [event] or [event]', 'find me exhibitions in Germany for packaging', 'trade show calendar 2026', 'exhibition calendar Europe', 'B2B trade shows', 'what industry events should I attend', 'upcoming trade fairs', or even vague requests like 'we need to get in front of more buyers — what events should we be at'. If the user mentions any specific trade show by name (CES, MEDICA, Hannover Messe, Interpack, SXSW, Bauma, etc.) and wants information about it, use this skill.

Comprehensive Mastra framework guide. Teaches how to find current documentation, verify API signatures, and build agents and workflows. Covers documentation lookup strategies (embedded docs, remote docs), core concepts (agents vs workflows, tools, memory, RAG), TypeScript requirements, and common patterns. Use this skill for all Mastra development to ensure you're using current APIs from the installed version or latest documentation.

**Core principle**: Tests should verify behavior through public interfaces, not implementation details. Code can change entirely; tests shouldn't.

mcp-apps-builder

Write TypeScript and JavaScript code following Metabase coding standards and best practices. Use when developing or refactoring TypeScript/JavaScript code.