Essential command-line tools and system utilities.
Analyze the impact of code changes by mapping call graphs and identifying all direct and indirect dependencies. Use when users ask about blast radius analysis, code change impact, who calls a function, downstream dependencies, or risk assessment before refactoring. Traces call chains, identifies high-risk modules, and provides ranked impact analysis.
Systematic debugging workflow for CircleTel - analyzes errors, identifies root causes, proposes fixes, and validates solutions with tests
Systematic root cause analysis for debugging errors. Use when an error appears, something breaks unexpectedly, or you need to trace a problem back to its source. Prevents panic-driven debugging.
Find and fix performance issues in Leavn - main thread blocking, heavy View body computation, missing lazy loading, inefficient list rendering
Toolkit para interagir e testar aplicações web locais usando Chrome DevTools MCP. Suporta verificação de funcionalidade frontend, debugging de UI, captura de screenshots, análise de performance, inspeção de network e visualização de logs do console.
Inspect web pages for privacy, fingerprinting, and content blocker behavior. Use when user asks to 'check this site', 'inspect page', 'analyze trackers', 'test content blocker', or 'debug browser'.
Performance profiling principles. Measurement, analysis, and optimization techniques.
Web performance optimization and Core Web Vitals. Covers LCP, FID, CLS, code splitting, lazy loading, caching strategies, image optimization, and performance monitoring. Trigger: When optimizing performance, when improving Core Web Vitals, when implementing code splitting, when optimizing images, when setting up caching.
pprof usage and performance analysis. Use when profiling applications.
Debug Svelte application issues systematically. This skill helps diagnose and resolve Svelte-specific problems including reactivity failures, runes issues ($state, $derived, $effect), store subscription memory leaks, SSR hydration mismatches, and compiler warnings. Covers both Svelte 4 legacy patterns and Svelte 5 runes-based reactivity. Provides debugging tools like $inspect(), {@debug} tags, and svelte-check CLI usage.
Take screenshots of web pages using shot-scraper. Use when the user wants to capture screenshots, test web pages visually, generate documentation images, or verify page rendering. Supports viewport control, element selection, JavaScript execution, and various output formats.
Comprehensive guide to CPU and memory profiling in Node.js and Python for identifying bottlenecks and optimizing performance
Explain code operation, logic, and design clearly and systematically. Use when the user asks to explain code, understand how something works, what a function does, or requests logic analysis.
メモリ構成の監査と分析。現在のメモリ状態を評価し、最適化ポイントを特定。Use when user wants to audit memory, check memory status, analyze memory configuration, or evaluate memory efficiency. Also use when user says 監査, チェック, 分析, 評価, 現状確認.
Structured debugging process for bugs. Reproduces, isolates, hypothesizes, tests, fixes minimally, and documents learnings.
Detect empty catch blocks and exception swallowing anti-patterns. Finds catch blocks that silently ignore errors without logging or rethrowing. Works across all languages. Use when user asks about error handling issues.
Review artifact scan results for reportable bug bounty findings. Analyzes archives, SQL dumps, binary databases, and source backups for secrets, code vulnerabilities, misconfigurations, and PII exposure. Focuses on high-confidence findings with clear security impact.
Use this skill when working with TypeScript/JavaScript files (.ts, .tsx, .js, .jsx, .mts, .cts, .mjs, .cjs) in Deno projects, or when the user asks about Deno-specific patterns, imports, configuration, testing, or tooling.
Analyze system processes and resource usage to diagnose runaway processes. Use when investigating CPU/memory/IO spikes.
반응형 디자인 검증 스킬. 모바일/태블릿/데스크톱 레이아웃, 브레이크포인트 사용, 터치 친화성을 검토합니다. Use when: checking responsive design, verifying mobile layout, testing breakpoints, or reviewing media queries. Triggers: 반응형 체크, 모바일 확인, 브레이크포인트 검사, responsive check, mobile test, breakpoint review
Debug ASP.NET Core and .NET applications with systematic diagnostic approaches. This skill covers troubleshooting dependency injection container errors, middleware pipeline issues, Entity Framework Core query problems, configuration binding failures, authentication/authorization issues, and startup failures. Includes Visual Studio and VS Code debugging, dotnet-trace, dotnet-dump, dotnet-counters tools, Serilog configuration, Application Insights integration, and four-phase debugging methodology.
TypeScript/Reactパフォーマンスレビュースキル。測定ファーストの最適化観点でコードをレビュー。フロントエンド（re-render、バンドルサイズ）、バックエンド（N+1、キャッシュ）、API（ペイロード、圧縮）のパフォーマンス問題を検出。「パフォーマンスレビュー」「速度改善」「最適化チェック」などのリクエスト時に使用。
