Comprehensive guide for binary reverse engineering. This skill provides the overall methodology, philosophy, and reference material. Related skills handle specific phases:

Guides you through creating new CSS components following established patterns:

Transforms existing CSS into semantic component patterns:

This sub-skill guides adding new features to existing Firebase projects using TDD. It handles Cloud Functions, Firestore collections, and API endpoints.

This sub-skill validates existing Firebase code against proven patterns and security best practices. It checks configuration, rules, architecture consistency, authentication, testing, and production r

Scoring framework for test-kitchen cookoff and omakase-off. Invoked at Phase 4 to evaluate implementations using 5-criteria scoring. Do not invoke directly - called by cookoff/omakase-off.

Chef's choice exploration - when you're not sure WHAT to build, explore different approaches in parallel.

**The Iron Law**: "NO FEATURE IS VALIDATED UNTIL A SCENARIO PASSES WITH REAL DEPENDENCIES"

Implement RxJS patterns for reactive programming in Angular. Use this skill when working with Observables, operators, subscriptions, async data flows, and error handling. Covers common patterns like combineLatest, switchMap, debounceTime, catchError, retry logic, and integration with Angular Signals using toSignal() and toObservable(). Ensures proper subscription cleanup with takeUntilDestroyed().

Claude Code hooks configuration specialist. Use when creating hooks for

Context management specialist for multi-agent workflows and long-running

Comprehensive debugging specialist for errors, test failures, log analysis,

Comprehensive documentation specialist covering API documentation, technical

Spec-Driven Development (SDD) methodology based on GitHub's SpecKit.

Python/pytest TDD specialist for test-driven development workflows. Use

Comprehensive testing specialization covering test strategy, automation,

exercise-designer

Generate distinctive educational visuals using creative brief methodology. Use when creating chapter illustrations, diagrams, or teaching visuals with Gemini.

Guide for creating new skills in Kai's personal AI infrastructure. Use when user wants to create, update, or structure a new skill that extends capabilities with specialized knowledge, workflows, or tool integrations. Follows both Anthropic skill standards and PAI-specific patterns.

Transform Product Requirements Documents (PRDs) into structured XML application specifications optimized for AI coding agents.

Create specialized Claude Code agents on-the-fly. Guides through agent definition file creation with proper frontmatter, effective prompts, and tool scoping. USE WHEN user says 'create agent', 'new subagent', 'make an agent for', 'build agent', 'spawn agent', or wants to define custom agents for specific tasks.

Create and send transactional emails using React Email. Covers templates, layout integration, and sending logic.

A conceptual skill for implementing CRUD features driven by Spec-Kit and Claude Code

A conceptual skill for guiding the Spec-Kit + Claude Code development workflow

pytest-mastery

Orchestrates Pukaist agents, enforces plan-first workflow, runs integrity tests, and delegates tasks; use for coordination or system audits.

Design Component skill for Empathy Ledger. Use for storyteller cards, story cards, profile displays, and any UI component requiring cultural sensitivity. Provides data mapping, AI enrichment patterns, and design system guidelines.

Manages Supabase database schema, migrations, and queries for CookMode V2. Use this when the user needs to create/modify tables, write migrations, update RLS policies, or troubleshoot database issues.

AI-friendly architecture patterns for TypeScript projects including Domain-Driven Design, Clean Architecture, Hexagonal Architecture, and Page Object Model testing patterns

**AI-friendly comprehensive testing guidance for Vitest with practical patterns and behavior-driven development.**

Develop custom FiftyOne plugins (operators and panels) from scratch. Use when user wants to create a new plugin, extend FiftyOne with custom operators, build interactive panels, or integrate external APIs into FiftyOne. Guides through requirements, design, coding, testing, and iteration.

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Senior Information Security Manager specializing in ISO 27001 and ISO 27002 implementation for HealthTech and MedTech companies. Provides ISMS implementation, cybersecurity risk assessment, security controls management, and compliance oversight. Use for ISMS design, security risk assessments, control implementation, and ISO 27001 certification activities.

EU MDR 2017/745 regulation specialist and consultant for medical device requirement management. Provides comprehensive MDR compliance expertise, gap analysis, technical documentation guidance, clinical evidence requirements, and post-market surveillance implementation. Use for MDR compliance assessment, classification decisions, technical file preparation, and regulatory requirement interpretation.

Senior Risk Management specialist for medical device companies implementing ISO 14971 risk management throughout product lifecycle. Provides risk analysis, risk evaluation, risk control, and post-production information analysis. Use for risk management planning, risk assessments, risk control verification, and risk management file maintenance.

World-class data science skill for statistical modeling, experimentation, causal inference, and advanced analytics. Expertise in Python (NumPy, Pandas, Scikit-learn), R, SQL, statistical methods, A/B testing, time series, and business intelligence. Includes experiment design, feature engineering, model evaluation, and stakeholder communication. Use when designing experiments, building predictive models, performing causal analysis, or driving data-driven decisions.

Comprehensive QA and testing skill for quality assurance, test automation, and testing strategies for ReactJS, NextJS, NodeJS applications. Includes test suite generation, coverage analysis, E2E testing setup, and quality metrics. Use when designing test strategies, writing test cases, implementing test automation, performing manual testing, or analyzing test coverage.

Comprehensive security engineering skill for application security, penetration testing, security architecture, and compliance auditing. Includes security assessment tools, threat modeling, crypto implementation, and security automation. Use when designing security architecture, conducting penetration tests, implementing cryptography, or performing security audits.

Build, update, and troubleshoot AllayMC plugins in Java or other JVM languages. Use when creating a new AllayMC plugin, migrating an existing plugin to a new Allay API version, wiring commands/events/tasks/config, or setting up Gradle and plugin metadata (plugin.json or AllayGradle plugin block).

Allra 백엔드 테스트 작성 표준. Use when writing test code, choosing test helpers, generating test data with Fixture Monkey, or verifying test coverage.

Run TUnit tests with Playwright. Use when user asks to run tests, execute tests, or check if tests pass.

Generates and updates the latest app changelog based on git history since the last version tag.

Use this skill when creating comprehensive testing strategies for applications. Provides test planning templates, coverage targets, test case structures, and guidance for unit, integration, E2E, and performance testing. Ensures robust quality assurance across the development lifecycle.

Run unit and integration tests for Catalyst-Relay. Use when asked to test, run tests, verify changes, or check if code works.

Build evaluation frameworks for agent systems. Use when testing agent performance, validating context engineering choices, or measuring improvements over time.

nextjs-devtools