Tools & Utilities
Essential command-line tools and system utilities.
xcode-debugging
Use when encountering BUILD FAILED, test crashes, simulator hangs, stale builds, zombie xcodebuild processes, "Unable to boot simulator", "No such module" after SPM changes, or mysterious test failures despite no code changes - systematic environment-first diagnostics for iOS/macOS projects
zig-expert
Comprehensive Zig 0.15.2 development expert. Use when writing Zig code, debugging memory issues, designing build systems, implementing comptime metaprogramming, handling errors, or cross-compiling. Automatically activated for any .zig file or build.zig work.
rust-code-debugger
Diagnoses and fixes Rust compile errors, borrow-checker issues, runtime panics, and logic bugs with clear explanations and idiomatic solutions.
networking
Analyzes network traffic and exploits protocols. Use when working with PCAP files, Wireshark captures, packet analysis, protocol exploitation, traffic forensics, or data exfiltration detection.
web-security
Exploits web application vulnerabilities. Use when working with SQL injection, XSS, SSRF, SSTI, command injection, path traversal, authentication bypass, deserialization, or any web-based CTF challenge.
mcp-examples
This skill should be used when the user asks for "MCP examples", "real-world patterns", "code search patterns", "browser proxy patterns", "process management patterns", "show me examples", or wants to see actual implementations from lci, agnt, or other real MCPs.
ui-ux-research
Use when analyzing UI patterns across codebases, comparing design system implementations, auditing UI consistency, or understanding existing patterns before implementation
circuit-breaker
무한 루프 및 토큰 폭주 방지를 위한 서킷 브레이커. Use when (1) 재귀 깊이 초과, (2) 동일 에러 반복, (3) 동일 파일 반복 수정, (4) 세션 시간 초과.
drupal-cache-maxage
Drupal cache max-age configuration and behavior. Use when asked about time-based cache expiration, Cache::PERMANENT, max-age 0 issues, why Page Cache ignores max-age, or when content appears stale despite time expiration. Critical for understanding caching layer differences.
python-pro
Expert Python developer specializing in modern tooling (uv, ruff, pyright), type safety, and clean module design. This skill should be used PROACTIVELY when working on any Python code - implementing features, designing APIs, debugging issues, or reviewing code quality. Use unless a more specific subagent role applies.
django-simplifier
Simplify overly complex Django code and detect Django-specific anti-patterns. Use when user asks to simplify, refactor, or improve Django code, find N+1 queries, detect Django anti-patterns, optimize QuerySets, or analyze Django project architecture. Triggers on requests involving Django models, views, QuerySets, ORM optimization, serializers, forms, signals, middleware, or Django best practices. For general Python analysis, use the python-simplifier skill instead.
injection-vulnerabilities-ai-generated-code
Understand how AI generates SQL injection, command injection, and XSS vulnerabilities. Use this skill when you need to learn about injection attack patterns in AI code, see real-world examples of injection vulnerabilities, understand why AI generates insecure database queries, or recognize vulnerable code patterns. Triggers include "SQL injection AI", "command injection", "XSS vulnerabilities", "injection attacks", "AI database queries", "shell injection", "cross-site scripting AI code".
cloudflare-browser-rendering
Guide for implementing Cloudflare Browser Rendering - a headless browser automation API for screenshots, PDFs, web scraping, and testing. Use when automating browsers, taking screenshots, generating PDFs, scraping dynamic content, extracting structured data, or testing web applications. Supports REST API, Workers Bindings (Puppeteer/Playwright), MCP servers, and AI-powered automation. (project)
error-analysis
This skill should be used when analyzing errors, stack traces, and logs to identify root causes and implement fixes.
comparing-screenshots
Compares Figma screenshots with HTML screenshots using pixel-level analysis. Use when verifying visual accuracy of Figma-to-HTML conversion.
python-performance-optimization
Profile and optimize Python code using cProfile, memory profilers, and performance best practices. Use when debugging slow Python code, optimizing bottlenecks, or improving application performance.
