Developer Tools & Repos Agent Skills for ChatGPT

When to activate: FastAPI, Pydantic v2, dependency injection, async endpoints, middleware, background tasks, OpenAPI

When to activate: Flutter state management, setState, ValueNotifier, ChangeNotifier, BLoC, Riverpod, Provider, state comparison

When to activate: general Go code, idiomatic Go, interfaces, error handling, defer, init, blank identifier, iota

When to activate: PWA, service worker, offline, cache strategy, Web App Manifest, push notifications, Workbox, install prompt

When to activate: asyncio, async/await, concurrent I/O, aiohttp, anyio, task groups, asyncio patterns

When to activate: React Native, Expo, StyleSheet, navigation, FlatList, Animated, gesture handling, platform-specific code

When to activate: Zustand, Jotai, TanStack Query, React Query, Redux Toolkit, global state, client state, server state

When to activate: URLSession, async networking, REST API clients, JSON decoding, multipart uploads, WebSocket in Swift

When to activate: general Swift code, value types, enums, pattern matching, optionals, result types, property wrappers

When to activate: SwiftUI views, layouts, state management, view modifiers, navigation, lists, animations in SwiftUI

When to activate: async/await, Promise patterns, concurrency, AbortController, error handling in async code, streams, async iterators

When to activate: Vite, vite.config.ts, plugins, HMR, build optimization, code splitting, environment variables, vitest

Use this skill when loading and managing resources in PixiJS v8.

Develop, test, and automate Unreal Engine 5.x projects (WIP).

Cleans up and improves existing code without changing behavior.

Use when designing game systems — gameplay loops, mechanics, economy balance, player progression, or GDDs — or applying gamification to…

Use when designing game levels and maps — layouts, encounter sequences, pacing arcs, blockout specs, and environmental storytelling — or…

Use when writing branching dialogue, designing story or lore systems, defining character voice and arcs, or crafting narrative-driven app…

Use the free first-party `dotnet format` CLI for .NET formatting and analyzer fixes.

use this when reviewing or generating a SKILL.md so the Agent Skills spec (name, description, folder) is valid before you ship

Translates and localizes Minecraft Bedrock Edition addons, resource packs, and behavior packs across UI, language files, and script data…