全部能力

React 성능 최적화 및 베스트 프랙티스 스킬. Vercel Engineering 가이드 기반, 프레임워크 비종속. 다음 상황에서 사용: (1) React 컴포넌트(.tsx, .jsx) 작성 또는 수정 시, (2) 상태 관리, hooks, 리렌더링 최적화 작업 시, (3) 비동기…

Use when bridging UIKit and SwiftUI, debugging Auto Layout constraints, working with Combine, TextKit, or UIKit animations.

Implement distributed tracing with Jaeger and Tempo for request flow visibility across microservices.

Master Bash Automated Testing System (Bats) for comprehensive shell script testing. Use when writing tests for shell scripts, CI/CD pipelines, or requiring…

Mandatory skills, conventions, and behavioral rules for Avalonia UI development using the Zafiro toolkit.

Automated, project-wide code coverage and CRAP (Change Risk Anti-Patterns) score analysis for .NET projects with existing unit tests. Auto-detects solution structure, runs coverage collection via `dotnet test` (supports both Microsoft.Testing.Extensions.CodeCoverage and Coverlet), generates reports via ReportGenerator, calculates CRAP scores per method, and surfaces risk hotspots — complex code with low test coverage that is dangerous to modify. Use when the user wants project-wide coverage analysis with risk prioritization, coverage gap identification, CRAP score computation across an entire solution, or to diagnose why coverage is stuck or plateaued and identify what methods are blocking improvement. DO NOT USE FOR: targeted single-method CRAP analysis (use crap-score skill), writing tests, running tests without coverage collection, applying test filters, producing TRX reports, or troubleshooting test execution (use run-tests for all of these).

Comprehensive conversion rate optimization framework combining customer-centric methodology (CRE), form optimization, page optimization, signup flows,…

Expert guidance for writing secure, reliable, and performant Claude Code hooks - validates design decisions, enforces best practices, and prevents common…

Guide on how to control a Flutter app using flutter_driver via MCP and capture screenshots.

End-to-end, API, and responsive testing for web applications using Playwright with TypeScript. Use when asked to write, run, debug, or maintain Playwright…

ClickHouse database patterns, query optimization, analytics, and data engineering best practices for high-performance analytical workloads.

Configure Aspire AppHost to emit explicit app config via environment variables; keep app code free of Aspire clients and service discovery.

Schematic capture and wiring. Create schematic sheets, place symbols, add wires and net labels, organize hierarchical designs.

Authentication integration guidance — Clerk (native Vercel Marketplace), Descope, and Auth0 setup for Next.js applications. Covers middleware auth patterns,…

Use when writing, running, or debugging XCUITests. Covers element queries, waiting strategies, accessibility identifiers, test plans, and CI/CD test execution…

Focused pattern for fetching data using URL parameters in Next.js. Covers creating dynamic routes ([id], [slug]) and accessing route parameters in server…

Calculate ROI for marketing campaigns, investments, and business decisions. Includes break-even analysis, payback period, and comparative ROI.

Generate/create/scaffold Kubernetes YAML — Deployment, Service, ConfigMap, Ingress, RBAC, StatefulSet, CRDs.

Use this methodology when collaboratively shaping a solution with the user - iterating on problem definition (requirements) and solution options (shapes).

Use when working with incident response incident response