Developer Tools & Repos Agent Skills for ChatGPT

This skill should be used when the user asks to "migrate from OpenAI Apps SDK", "convert OpenAI App to MCP", "port from window.openai"…

Mobile biometric authentication expert for Face ID, Touch ID, BiometricPrompt, Keychain/Keystore, and WebAuthn.

Offline-first mobile apps with local storage, sync queues, conflict resolution.

monday.com via Apideck's Proxy API + managed Vault auth — Apideck handles auth and proxies HTTP calls to monday.com's native API.

Use when setting up monorepo tooling, optimizing builds, or migrating between tools with Turborepo, Nx, Bazel, Lerna for efficient task…

Investigate why code or a design has its current shape using source history and available organizational evidence.

Provides comprehensive code review capability for NestJS applications, analyzing controllers, services, modules, guards, interceptors…

Generates complete CRUD modules for NestJS applications with Drizzle ORM.

Use when working with C# or .NET code: implementing features in ASP.NET Core, Entity Framework Core, or Blazor; writing async/await…

Guide for making .NET MAUI apps accessible — screen reader support via SemanticProperties, heading levels, AutomationProperties visibility…

.NET MAUI app icon configuration, splash screen setup, SVG to PNG conversion at build time, composed/adaptive icons, and platform-specific…

Diagnoses and fixes .NET MAUI development environment issues.

Scans .NET code for ~50 performance anti-patterns across async, memory, strings, collections, LINQ, regex, serialization, and I/O with…

Test Nethercore games with real ROM-backed replay assertions, semantic state snapshots, debug actions, and bounded rollback sync tests.

Generate Gradient News & Observer assets (banners, front pages, prompt experiments) by dispatching to the right newspaper script.

Generate a customized CLAUDE.md for a Unity project.

Implement data fetching, server actions, and performance patterns for Next.js App Router.

When to activate: Express with TypeScript, middleware patterns, REST API design, error handling, OpenAPI, JWT auth, rate limiting

Enable nullable reference types in a C# project and systematically resolve all warnings.

Nuxt 5 data management with useFetch, useAsyncData, useState, and Pinia.

Transactional outbox pattern for reliable event publishing.