Comprehensive logging and observability patterns for production systems. Use when implementing structured logging, distributed tracing, metrics collection, or alerting. Triggers: logging, logs, observability, tracing, metrics, OpenTelemetry, correlation ID, spans, alerts, monitoring, JSON logs.
Comprehensive concurrency and parallelism patterns for multi-threaded and async programming. Use when implementing async/await, parallel processing, thread safety, worker pools, or debugging race conditions and deadlocks. Triggers: async, await, concurrent, parallel, threads, race condition, deadlock, mutex, semaphore, worker pool, queue.
Setup Sentry Tracing (Performance Monitoring) in any project. Use this when asked to add performance monitoring, enable tracing, track transactions/spans, or instrument application performance. Supports JavaScript, TypeScript, Python, Ruby, React, Next.js, and Node.js.
Setup Sentry in React apps. Use when asked to add Sentry to React, install @sentry/react, or configure error monitoring for React applications.
Expert knowledge of Godot debugging, error interpretation, common bugs, and troubleshooting techniques. Use when helping fix Godot errors, crashes, or unexpected behavior.
Integrates Lighthouse CI for automated performance testing, Core Web Vitals tracking, and regression detection in CI/CD pipelines. Use when user asks to "setup Lighthouse CI", "add performance testing", "monitor Core Web Vitals", or "prevent performance regressions".
Performs comprehensive code reviews focusing on correctness, maintainability, performance, and best practices. Trigger keywords: review, code review, PR review, pull request, check code, audit code.
Explains code with visual diagrams and analogies. Use when explaining how code works, teaching about a codebase, or when the user asks "how does this work?"
Explain how code/features work by tracing execution flow. Saves markdown to ~/Developer/explanations/ and previews in browser.
Professional malware analysis report creation for enterprise malware analysis and incident response. Use when the user needs to create, structure, or improve a malware analysis report, write technical documentation for malware samples, create executive summaries, or format IOCs and detection rules for professional delivery.
Audit code for runtime safety and security vulnerabilities. Use when reviewing code, before commits, or performing security assessments.
Testing GPUI applications and components. Use when writing tests, testing async operations, simulating user input, or debugging test failures.
Toolkit for testing web applications using Playwright. Use when verifying frontend functionality, debugging UI behavior, capturing screenshots, or viewing browser logs.
Comprehensive code review for Fluxby - checks security, performance, and coding standards specific to the local-first financial dashboard architecture.
Use when errors occur deep in execution and you need to trace back to find the original trigger - systematically traces bugs backward through call stack, adding instrumentation when needed, to identify source of invalid data or incorrect behavior
Analyzes the codex cache and generates comprehensive statistics about cache performance, storage usage, and health status. Delegates to fractary CLI for cache analysis operations.
Analyzes LLVM IR to find monomorphization bloat and compile time hotspots. Use when debugging slow builds, reducing binary size, or optimizing generic code.
Node.jsアプリケーションのメモリ監視とリーク検出パターン。PM2、V8ヒープ分析、メモリプロファイリングを活用した効率的メモリ管理を提供。 Anchors: • Observability Engineering / 適用: メモリメトリクスとアラート / 目的: 本番監視 • Systems Performance / 適用: ヒープ分析とプロファイリング / 目的: メモリ最適化 • Node.js Documentation / 適用: process.memoryUsage、V8ヒープ統計 / 目的: API活用 Trigger: Use when setting up memory monitoring, investigating memory leaks, configuring PM2 memory limits, analyzing heap dumps, or designing production memory alerting strategies.
Rust language expertise for writing safe, performant, production-quality Rust code. Use for Rust development, ownership patterns, error handling, async/await, and cargo management. Triggers: rust, cargo, rustc, ownership, borrowing, lifetime, Result, Option, traits, crates.
