Developer Tools & Repos Agent Skills for ChatGPT

Expert Haskell engineer specializing in advanced type systems, pure

Build ultra-fast web APIs and full-stack apps with Hono — runs on Cloudflare Workers, Deno, Bun, Node.js, and any WinterCG-compatible…

Internationalization and localization patterns.

Debug the current iOS project on a booted simulator with XcodeBuildMCP.

Develop native iOS applications with Swift/SwiftUI.

Build and distribute Expo development clients locally or via TestFlight

Master Java 21+ with modern features like virtual threads, pattern matching, and Spring Boot 3.x.

Master modern JavaScript with ES6+, async patterns, and Node.js APIs.

Behavioral guidelines to reduce common LLM coding mistakes.

Expert patterns for Kotlin Coroutines and Flow, covering structured concurrency, error handling, and testing.

Senior Laravel Engineer role for production-grade, maintainable, and idiomatic Laravel solutions.

Refactor legacy codebases, migrate outdated frameworks, and implement gradual modernization.

MANDATORY: Run appropriate validation tools after EVERY code change.

Build a real-time support chat system with a floating widget for users and an admin dashboard for support staff.

Get reliable JSON, enums, and typed objects from LLMs using response_format, tool_use, and schema-constrained decoding across OpenAI…

Build, refactor, or review SwiftUI macOS menubar apps that use Tuist.

Scaffold, build, sign, and package SwiftPM macOS apps without Xcode projects.

This skill should be used when the user asks to "create AGENTS.md", "update AGENTS.md", "maintain agent docs", "set up CLAUDE.md", or…

CRITICAL: Use for Makepad cross-platform support.

Create MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools.

Cross-language patterns for memory-safe programming including RAII, ownership, smart pointers, and resource management.