Developer Tools & Repos Agent Skills for Microsoft Copilot

2D game development principles. Sprites, tilemaps, physics, camera.

Master Godot 4 GDScript patterns including signals, scenes, state machines,

PC and console game development principles.

Three.js geometry creation - built-in shapes, BufferGeometry, custom

Master Unity ECS (Entity Component System) with DOTS, Jobs, and Burst

Web browser game development principles.

Builds, optimizes, and debugs cross-platform mobile applications with React Native and Expo.

Review code for quality, maintainability, and correctness.

Conduct comprehensive PR review from multiple perspectives (PM, Developer, QA, Security)

Use when starting feature work that needs isolation from current workspace or before executing implementation plans - creates isolated git…

React and Next.js performance optimization guidelines from Vercel Engineering.

Guide to handling keyboard in Capacitor apps including visibility detection, accessory bar, scroll behavior, and input focus.

Ktor client for Kotlin Multiplatform. Shared networking layer with platform-specific engines (OkHttp for Android, Darwin for iOS).

Kotlin 2.1.20–2.3.20 features — context parameters, name-based destructuring, explicit backing fields, stdlib atomics/UUID/Instant…

Coroutine patterns, Flow operators, Jetpack Compose state management, Ktor routing, and Kotlin Multiplatform shared code.

Specialized guide for migrating Godot 3.x projects to Godot 4 (GDScript 2.0), covering syntax changes, Tweens, and exports.

INVOKE THIS SKILL when building ANY Deep Agents application.

Laravel framework knowledge base. Provides architecture, DDD integration, Eloquent persistence, service container, security, queues…

DDD-guided legacy refactoring patterns -- strangler fig, bubble context, ACL migration, 14 tactical/strategic/infrastructure patterns, and…

Apply these rules when developing with Leptos (Rust + WASM framework).

Rules for using libraries and frameworks.