Jeffallan

Build custom WordPress themes, plugins, and editor blocks, extend WooCommerce stores, and add REST API endpoints. The skill also guides input protection, permission checks, caching, and database query tuning to improve security and performance.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Build custom WordPress themes and plugins
• Create Gutenberg blocks and block patterns
• Extend WooCommerce stores and REST API endpoints

Build Vue 3 applications using JavaScript and JSDoc comments that describe data types. Create components and reusable logic, configure Vite, routing, and state management, and check annotations and behavior with ESLint and Vitest.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Build Vue 3 interfaces using JavaScript
• Add JSDoc type hints to components and shared logic
• Migrate Vue 2 Options API code to Composition API

Design TypeScript types and APIs that catch mistakes such as mixed-up identifiers and missing state handling. Implement reusable types and runtime checks that narrow types, configure tRPC for shared client-server types, and improve compiler settings.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Prevent identifier mix-ups with distinct types
• Model application states and handle every case
• Create reusable types for complex data

Build Java REST APIs and microservices with Spring Boot 3.x, including database access, authentication, and reactive endpoints for nonblocking request handling. The skill also guides testing and application health checks.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Building Java REST APIs
• Adding authentication and access controls
• Implementing database access

Examine plans, proposals, and decisions by questioning assumptions, building opposing arguments, anticipating failures, or checking evidence. Presents three to five concrete challenges, then uses your responses to develop a stronger position and practical next steps.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Review a plan's assumptions before committing
• Examine objections to a technology or vendor choice
• Anticipate project failures and possible mitigations

Build real-time messaging with WebSocket or Socket.IO, including authentication, chat rooms, online status, and reconnection. Provides server and client code, plus guidance on using Redis to share messages across multiple servers and monitor connections.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Building chat and live-update features
• Managing rooms and online user status
• Handling reconnection and queued messages

Implement application security controls, including login, access permissions, password hashing, and input validation. The skill provides code, configuration requirements, and testing guidance for checking protections against unauthorized access, malicious input, and sensitive data exposure.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Implementing login with password hashing and rate limits
• Adding JWT validation and session protection
• Preventing SQL injection and malicious script execution

Build Vue 3 components and reusable logic, manage shared application data with Pinia, and configure Nuxt 3 projects. Supports mobile apps, offline web features, TypeScript checks, component tests, and Vite build optimization.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Build Vue 3 components and reusable logic
• Manage shared application data with Pinia
• Configure Nuxt 3 server rendering and static generation

Read existing code to reconstruct system specifications, including architecture, data flows, APIs, and business rules. Produces documentation tied to code locations, separating observed behavior from inferences and questions that need clarification.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Understand an undocumented legacy system
• Document existing APIs and business rules
• Map module dependencies and data flows

Build Apple platform applications with Swift, including SwiftUI screens and state management. Design reusable interfaces with protocols, implement asynchronous tasks, protect shared data with actors, and check code through builds, performance profiling, and tests.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Building SwiftUI screens and state management
• Fixing concurrency issues with async/await and actors
• Designing protocol-based application architecture

Investigate slow SQL, write complex joins and summaries, and design database structures. Uses execution plans, which show how queries run, to guide index choices and query rewrites, with before-and-after performance measurements.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Investigate a slow SQL query
• Write complex joins and grouped calculations
• Design tables, keys, and constraints

Review code and infrastructure for vulnerabilities, insecure dependencies, and exposed credentials. Combine automated scans with manual review to produce audit reports that identify affected locations, rate severity, and prioritize practical fixes.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Reviewing code for security vulnerabilities
• Checking dependencies and exposed credentials
• Auditing cloud and infrastructure security

Build Apache Spark pipelines for large datasets, including transformations, aggregations, and streaming analysis. Get PySpark or Scala code, partitioning strategies for dividing data across workers, and configuration advice to investigate slow jobs and resource usage.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Build a pipeline to transform and aggregate large datasets
• Investigate slow Spark jobs and uneven data distribution
• Tune memory settings and data partitions

Create unit, integration, and E2E tests that check complete user flows, then identify coverage gaps and investigate unreliable results. The skill also supports performance and security test plans, with findings organized by severity and suggested fixes.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Writing tests for normal behavior, errors, and boundary values
• Finding gaps in test coverage
• Investigating tests that fail intermittently

Build infrastructure as code with Terraform across AWS, Azure, and GCP. Create reusable modules, manage state records that track resources, configure environments and providers, and validate proposed changes before applying an explicitly approved plan.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Creating reusable Terraform modules
• Migrating state storage or importing existing resources
• Managing settings across development and production

Build and debug Shopify themes, custom apps, and storefronts connected through APIs. The skill covers Liquid templates, app authentication, checkout extensions, performance improvements, and the configuration, testing, and deployment steps needed for implementation.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Customizing product pages and collection filters
• Building custom Shopify apps
• Creating independent storefronts with the Storefront API

Define reliability targets for production services and calculate error budgets, the allowed amount of failure. Create monitoring rules, incident response runbooks, capacity plans, and automation scripts, with failure experiments to check recovery behavior.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Define service reliability targets and error budget policies
• Design monitoring dashboards and actionable alerts
• Prepare incident response runbooks and postmortems

Write and refactor C++20/23 applications, addressing memory management, concurrency, and performance bottlenecks. Produce interfaces, implementations, tests, and relevant CMake updates, then check runtime errors and measure performance before applying targeted optimizations.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Refactoring existing code with C++20/23 features
• Investigating memory errors and undefined behavior
• Improving performance through profiling and benchmarks

Review code changes and files for bugs, security risks, performance problems, design issues, and test coverage. Receive a structured report with prioritized findings, concrete improvement examples, positive feedback, and an overall review verdict.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Reviewing a pull request
• Auditing code quality and security
• Finding refactoring opportunities

Build Python 3.11+ applications with type annotations, asynchronous operations, and structured error handling. The skill also creates pytest tests and checks code with mypy, black, and ruff to support consistent implementation and validation.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Add type annotations and strict type checking
• Implement asynchronous network or file operations
• Create pytest tests with fixtures and mocks

Build React components, forms, and custom hooks with TypeScript. Organize state and data fetching, debug rendering problems, migrate class components, and improve performance, with type checks and component tests to validate the implementation.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Build React components and forms
• Design state management and data fetching
• Debug rendering issues and improve performance

Implement Kotlin applications with asynchronous tasks, shared code across platforms, Android interfaces, and servers. The skill covers state modeling, cancellation handling, tests, and code checks, with guidance for Compose, Ktor, and Flow data streams.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Implement asynchronous tasks with coroutines and Flow
• Design shared code for Kotlin Multiplatform
• Build Android interfaces with Jetpack Compose

Design controlled failure experiments for distributed systems to examine how services recover. Produce failure injection scripts, monitoring plans, rollback procedures, and exercise guides, then turn findings into documented improvements.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Planning controlled failure experiments
• Testing recovery after Kubernetes Pod failures
• Checking service behavior under network delays

Configure Django file storage on AWS S3 using django-storages and boto3. Separate public and private files, create temporary download or upload links, configure CloudFront delivery, and test storage behavior without accessing real S3 buckets.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Moving Django static files and uploads to S3
• Separating public files from private documents
• Creating temporary download and direct upload links