Top Agent Skills

Idiomatic Go patterns, best practices, and conventions for building robust, efficient, and maintainable Go applications.

React component testing with React Testing Library, Vitest/Jest, MSW for network mocking, accessibility assertions with axe, and the decision boundary between component tests and Playwright/Cypress end-to-end runs. Use when writing or fixing tests for React components, hooks, or pages.

Use this skill to measure performance baselines, detect regressions before/after PRs, and compare stack alternatives.

Production machine-learning engineering workflow for data contracts, reproducible training, model evaluation, deployment, monitoring, and rollback. Use when building, reviewing, or hardening ML systems beyond one-off notebooks.

Create CodeTour `.tour` files — persona-targeted, step-by-step walkthroughs with real file and line anchors. Use for onboarding tours, architecture walkthroughs, PR tours, RCA tours, and structured "explain how this works" requests.

Prevent Ethereum hashing bugs in JavaScript and TypeScript. Node's sha3-256 is NIST SHA3, not Ethereum Keccak-256, and silently breaks selectors, signatures, storage slots, and address derivation.

C# and .NET testing patterns with xUnit, FluentAssertions, mocking, integration tests, and test organization best practices.

F# testing patterns with xUnit, FsUnit, Unquote, FsCheck property-based testing, integration tests, and test organization best practices.

Go testing patterns including table-driven tests, subtests, benchmarks, fuzzing, and test coverage. Follows TDD methodology with idiomatic Go practices.

Test-driven development for Spring Boot using JUnit 5, Mockito, MockMvc, Testcontainers, and JaCoCo. Use when adding features, fixing bugs, or refactoring.

Formal evaluation framework for Claude Code sessions implementing eval-driven development (EDD) principles

Nuxt 4 app patterns for hydration safety, performance, route rules, lazy loading, and SSR-safe data fetching with useFetch and useAsyncData.

React 18/19 patterns including hooks discipline, server/client component boundaries, Suspense + error boundaries, form actions, data fetching, state management decision trees, and accessibility-first composition. Use when writing or reviewing React components.

MySQL and MariaDB schema, query, indexing, transaction, replication, and connection-pool patterns for production backends.

Build a fully automated AI-powered data collection agent for any public source — job boards, prices, news, GitHub, sports, anything. Scrapes on a schedule, enriches data with a free LLM (Gemini Flash), stores results in Notion/Sheets/Supabase, and learns from user feedback. Runs 100% free on GitHub Actions. Use when the user wants to monitor, collect, or track any public data automatically.

Django architecture patterns, REST API design with DRF, ORM best practices, caching, signals, middleware, and production-grade Django apps.

NestJS architecture patterns for modules, controllers, providers, DTO validation, guards, interceptors, config, and production-grade TypeScript backends.

Unified media generation via fal.ai MCP — image, video, and audio. Covers text-to-image (Nano Banana), text/image-to-video (Seedance, Kling, Veo 3), text-to-speech (CSM-1B), and video-to-audio (ThinkSound). Use when the user wants to generate images, videos, or audio with AI.

Set an ECC-specific frontend design direction for production UI work. Use when building or improving websites, dashboards, applications, components, landing pages, visual tools, or any web UI that needs stronger product-specific design judgment.

Baseline cross-project coding conventions for naming, readability, immutability, and code-quality review. Use detailed frontend or backend skills for framework-specific patterns.

Grill the user relentlessly about a plan or design. Use when the user wants to stress-test a plan before building, or uses any 'grill' trigger phrases.

Guidance for distinctive, intentional visual design when building new UI or reshaping an existing one. Helps with aesthetic direction, typography, and making choices that don't read as templated defaults.

Propose a new change with all artifacts generated in one step. Use when the user wants to quickly describe what they want to build and get a complete proposal with design, specs, and tasks ready for implementation.

Fast-forward through OpenSpec artifact creation. Use when the user wants to quickly create all artifacts needed for implementation without stepping through each one individually.

Start a new OpenSpec change using the experimental artifact workflow. Use when the user wants to create a new feature, fix, or modification with a structured step-by-step approach.

Verify implementation matches change artifacts. Use when the user wants to validate that implementation is complete, correct, and coherent before archiving.

Archive a completed change in the experimental workflow. Use when the user wants to finalize and archive a change after implementation is complete.

Continue working on an OpenSpec change by creating the next artifact. Use when the user wants to progress their change, create the next artifact, or continue their workflow.

Unreal Engine 5 development using the VibeUE Python API. Use when working in Unreal Engine — blueprints, state trees, materials, actors, landscapes, animation, niagara, widgets, sound, foliage, gameplay tags, enhanced input, skeletons, PCG (procedural content generation), and more. VibeUE is an extension of Unreal's native MCP endpoint.

Generate heightmaps, map reference images, and water feature splines (rivers, lakes, oceans) from real-world geographic data (terrain_data tool). Use when the user asks to build terrain from a real location/coordinates, download a real-world heightmap, or add rivers/lakes/oceans from map data. Downloads Mapbox tiles server-side and produces UE5-compatible heightmaps + landscape splines.

Create, inspect, and edit Behavior Tree and Blackboard assets — composites, tasks, decorators, services, node properties, blackboard key bindings, key CRUD and metadata, tree round-trips and validation (BehaviorTreeService + BlackboardService). Use when the user asks to build a Behavior Tree, add BT nodes or decorators, bind blackboard keys, author a blackboard, or validate/repair a BT asset.

Ableton Live Object Model (LOM) API reference for Python Remote Scripts and control surface development.

Brief description of what this skill does and when to trigger it. TRIGGERS - Use this skill when: - Trigger condition 1 - Trigger condition 2 - Trigger condition 3

Create care plans with assessments and interventions. TRIGGERS - Use when user needs help with care-plan related tasks.

Plan crop rotations with soil management and yields. TRIGGERS - Use when user needs help with crop-plan related tasks.

Build discounted cash flow models for company valuation. TRIGGERS - Use when user needs help with dcf-model related tasks.

Perform comprehensive SEO audits with technical, content, and link analysis. TRIGGERS - Use when user needs help with seo-audit related tasks.

Create comprehensive test plans with coverage and strategy. TRIGGERS - Use when user needs help with test-plan related tasks.

Plan tours with routing, logistics, and promotion. TRIGGERS - Use when user needs help with tour-plan related tasks.

Write case briefs with facts, issues, and holdings. TRIGGERS - Use when user needs help with case-brief related tasks.

Create comparative market analysis reports. TRIGGERS - Use when user needs help with cma-report related tasks.

Perform code audits for quality, security, and maintainability. TRIGGERS - Use when user needs help with code-audit related tasks.

Write ESG reports with metrics and disclosure. TRIGGERS - Use when user needs help with esg-report related tasks.

Create comprehensive event plans with logistics. TRIGGERS - Use when user needs help with event-plan related tasks.

Write FAQ pages with comprehensive answers. TRIGGERS - Use when user needs help with faq-writer related tasks.

Create size guides with measurements and fit advice. TRIGGERS - Use when user needs help with size-guide related tasks.

Design Security Operations Centers with processes. TRIGGERS - Use when user needs help with soc-design related tasks.

Prepare bid packages with specifications and requirements. TRIGGERS - Use when user needs help with bid-package related tasks.

Create farm budgets with inputs, revenue, and cash flow. TRIGGERS - Use when user needs help with farm-budget related tasks.

Write content in another person's voice with style matching and tone consistency. TRIGGERS - Use when user needs help with ghostwriter related tasks.

Create lesson plans with objectives, activities, and assessments. TRIGGERS - Use when user needs help with lesson-plan related tasks.

Build logic models linking activities to impact. TRIGGERS - Use when user needs help with logic-model related tasks.

Design MOOCs with scalable engagement. TRIGGERS - Use when user needs help with mooc-design related tasks.

Create process maps with steps, decisions, and handoffs. TRIGGERS - Use when user needs help with process-map related tasks.

Create RACI matrices for role assignment. TRIGGERS - Use when user needs help with raci-matrix related tasks.

Design 360-degree feedback programs with surveys. TRIGGERS - Use when user needs help with 360-feedback related tasks.

Plan auction events with items and bidding. TRIGGERS - Use when user needs help with auction-plan related tasks.

Design badge and achievement systems for learning. TRIGGERS - Use when user needs help with badge-system related tasks.

Write construction bid proposals with scope and pricing. TRIGGERS - Use when user needs help with bid-proposal related tasks.

Write cease and desist letters with legal basis. TRIGGERS - Use when user needs help with cease-desist related tasks.