“API development”

Build Angular applications.

Create or improve agent configurations, prompts, and workflows using secure research-first methodology.

Use before changing behavior or fixing a bug when a focused test can prove the change.

Guides implementation of AI agents: agent types, context/RAG, guardrails, swappable LLM providers, on-premises deployment, framework selection, and visual…

Use when a task can be isolated into a fresh-context subagent or parallelized safely, and its result needs review against the original requirements.

Angular framework development, migration, and component generation.

Specialist subagent: Expert GraphQL architect for API design, schema development, and performance optimization

Safely create skills or tools and extend UnrealAgentTools itself using live registry capabilities, source tools/external coding agents, builds, and validation.

Use when building, debugging, or implementing LINE Front-end Framework (LIFF) applications.

Use when writing, reviewing, or refactoring C++ code — covers workflow, essential patterns, and pre-commit checklist for modern C++17/20.

Mandatory skills, conventions, and behavioral rules for Avalonia UI development using the Zafiro toolkit.

Use when executing implementation plans with independent tasks — orchestration pattern for worktree isolation, TDD discipline, and two-stage review.

Go (Golang) best practices, patterns, and idioms for building reliable, performant applications.

Use for ducknng implementation, build, or RPC/transport contract changes.

Use for Rducks implementation, ABI/transport changes, or package builds.

A comprehensive skill for Rust development that combines error handling, testing, and logging patterns.

Use when you need backend development for APIs, databases, servers, or endpoints.

REST API and WebSocket development with FastAPI emphasizing security, performance, and async patterns

Implement Retrieval-Augmented Generation pipelines — ingestion, chunking, embedding, retrieval, and generation.

Jetpack Compose、Material Design、Androidアーキテクチャの専門知識。MVVM/MVI、Hilt、Room、Retrofit等のモダンAndroid開発パターンを提供します。

Validate bearer token validator operations.

Configure with conditional request helper operations.

Ground SwiftlyS2 plugin development in live documentation, C# API declarations and CS2 data.

Use for end-to-end software execution in an unfamiliar or complex repo: orienting the codebase, choosing an execution model, planning and verifying changes…