Systematic debugging workflow to reproduce, isolate, and fix hard software bugs, resolve related lint issues, and add tests and guardrails to prevent regressions. This skill should be used for complex bugs that teams struggle to fix, flaky/intermittent failures, production-only bugs, and environment-specific issues where code changes must be lint-clean.
Agent Skill: Security audit patterns for PHP/OWASP. Use when conducting security assessments, identifying vulnerabilities (XXE, SQL injection, XSS), or CVSS scoring. By Netresearch.
HTTP load testing and stress testing with oha - real-time TUI, latency correction for coordinated omission, and HTTP/2-3 support. Includes comparison with wrk, vegeta, and hey.
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 to identify source of invalid data
Standard Operating Procedure for /debug phase. Covers error investigation, root cause analysis, systematic debugging, and error documentation.
Use when profiling native macOS or iOS apps with Instruments/xctrace. Covers correct binary selection, CLI arguments, exports, and common gotchas.
Runs Google Lighthouse audits using Playwright for SEO, Performance, Accessibility, and Best Practices scoring. Supports both URLs and local HTML files. Use when user mentions "Lighthouse", "page speed", "performance audit", "Core Web Vitals", "CWV", or needs comprehensive web performance analysis.
Emacs 키바인딩을 검사하고 분석합니다. 키 충돌 확인, 특정 키에 바인딩된 명령 찾기, 명령에 할당된 키 검색에 사용합니다. "키바인딩", "키맵", "단축키", "keybind", "충돌" 등의 키워드에 활성화됩니다.
Monitor AMP processor load, system physical resources, and capacity using real-time resources to track system health and identify performance bottlenecks
Performance profiling principles. Measurement, analysis, and optimization techniques.
C programming language patterns, memory management, and systems programming best practices. Use when writing C applications, managing memory manually, or implementing low-level optimizations.
Master ES6+ features including async/await, destructuring, spread operators, arrow functions, promises, modules, iterators, generators, and functional programming patterns for writing clean, efficient JavaScript code. Use when refactoring legacy code, implementing modern patterns, or optimizing JavaScript applications.
Binary visualization for human pattern recognition - Ghidra plugin by Chris Domas (xoreaxeaxeax)
Analyzes HTML/JSX/TSX files for SEO and accessibility issues including WCAG 2.1 AA compliance, color contrast (4.5:1), heading hierarchy, meta tags, image alt text, and ARIA attributes. Use when checking web pages for SEO, accessibility, WCAG compliance, or when user mentions "a11y", "contrast", "alt text", "meta tags", "heading structure", or "accessibility audit".
DEPRECATED: This skill has been merged into `debugging` with `--autonomous` flag. Use `/debugging --autonomous` instead for structured headless debugging. Redirect: debugging --autonomous
Reverse engineering and binary exploration using strings, binwalk, hexdump, and related tools.
Use when debugging SwiftUI view updates, preview crashes, or layout issues - diagnostic decision trees to identify root causes quickly and avoid misdiagnosis under pressure
Diagnostics for Modbus in Home Assistant custom components—framing/extra-data errors, unit_id mismatches, pacing/timeouts, write contention, and logging patterns.
Use AddressSanitizer to detect memory safety bugs in C/C++ programs. Identifies use-after-free, buffer overflow, memory leaks, and other memory errors.
Inspect error logs quickly; use when log snippets or stack traces are mentioned.
Create investigations from security events, detections, or LCQL queries. Performs HOLISTIC investigations - not just process trees, but initial access hunting, org-wide scope assessment, lateral movement detection, and full host context. Builds Investigation Hive records documenting findings with events, detections, entities, and analyst notes. Use for incident investigation, threat hunting, alert triage, or building SOC working reports.
Root cause investigation methodology for bugs and failures. Use when encountering test failures, unexpected behavior, or errors during research or implement phases. Find the cause before attempting fixes.
