Mobile

UX research and design toolkit including data-driven persona generation, journey mapping, usability testing frameworks, and research synthesis. Use for user research, persona creation, journey mapping, and design validation for the PrayerMap app.

Use when setting up context management for Claude Code - configures conversation search, context summarization, session export, and project memory patterns for long-running development

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.

Systematic debugging approach for any error. Use when user encounters errors, bugs, or unexpected behavior in their code.

Playwright 브라우저 자동화 래퍼. MCP 대신 CLI 직접 호출. E2E 테스트, 스크린샷, 웹 자동화에 사용.

Launch Claude Code tasks in new iTerm2 windows for parallel work.USE WHEN user says 'parallel task', 'spawn claude', 'new window task','*parallel', 'launch task', or needs to run a Claude task independently.Supports optional 'happy' mode for mobile continuation via Happy Coder.

Writes technical content for students with explanatory clarity and professional precision. Balances conceptual understanding with practical application, treating readers as intelligent adults learning a new domain.

Use when creating new skills, editing existing skills, or verifying skills work before deployment - applies TDD to process documentation by testing with subagents before writing, iterating until bulletproof against rationalization

Identifies code smells and applies refactoring techniques from Martin Fowler's catalog. Use when improving code structure, reducing complexity, or eliminating smells without changing behavior.

Your approach to handling readme. Use this skill when working on files where readme comes into play.

Follow these patterns when extending the OptAIC Python SDK with new domain operations. Use for adding client methods for datasets, signals, portfolios, backtests, and other resources. Covers async/sync interfaces, uploads, and long-running operations.

Expert Flutter PR reviewer for code quality, architecture, performance, and best practices. Use when reviewing pull requests, performing code audits, or ensuring Flutter/Dart code meets production standards.

Analyze argument structure, identify logical gaps, suggest evidence needs, generate counterarguments, apply claim-evidence-warrant framework. Use when strengthening arguments, analyzing persuasive writing, checking logical validity, or when user asks to improve reasoning or logic.

macOS Apple Silicon performance engineer for Rust binaries. Diagnoses CPU, memory, I/O bottlenecks using samply, xctrace, and interactive browser-based profiling (Firefox Profiler, Speedscope, Perfetto). Produces Top-K summaries with visualizations.

Research and document new parasites, cleanup locations, and hidden data. Use when asked to add a parasite, discover zombie processes, research app persistence, add cleanup locations, or run iterative discovery loops (Ralph Wiggum). Handles all knowledge base modifications.

B1_02 phase workspace setup protocol including npm outdated, npm audit, TypeScript version validation, quality gates enforcement. Ensures dependencies current, security patches applied, and workspace ready for implementation.

Your approach to handling app components. Use this skill when working on files where app components comes into play.

Use when writing async/await code, enabling strict concurrency, fixing Sendable errors, migrating from completion handlers, managing shared state with actors, or using Task/TaskGroup for concurrency.

Systematically explore unfamiliar codebases and document findings using Julie's code intelligence, Sherpa's exploration workflow, and Goldfish's documentation. Activates when learning new code with semantic search, architecture mapping, and persistent documentation.

Apply type-safe bounds checking patterns using Index/Length types instead of usize. Use when working with arrays, buffers, cursors, viewports, or any code that handles indices and lengths.