Developer Tools & Repos Agent Skills

Three.js scene setup, cameras, renderer, Object3D hierarchy, coordinate systems.

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

Launch the Adventure Engine application for an adventure project.

Entity Component System architecture — fundamentals, storage strategies, system scheduling, component queries, events, hierarchies, and…

Build crypto wallets using Circle Modular Wallets SDK with passkey authentication, gasless transactions, and extensible module architecture.

Generate environment variable to CLI argument mapping with prefix support, type conversion, and fallback chains for configuration.

Query and transfer ERC-20 tokens using Nethereum's built-in typed services (.NET/C#).

Help users work with ERC-7579 modular smart accounts using Nethereum — install and manage validators (ECDSA, multisig, social recovery)…

Use when erlang's concurrency model including lightweight processes, message passing, process links and monitors, error handling patterns…

Use when oTP behaviors including gen_server for stateful processes, gen_statem for state machines, supervisors for fault tolerance…

Use when implementation is complete, all tests pass, and you need to decide how to integrate the work - guides completion of development…

ERNE — Implement animations using the ui-designer agent with Reanimated and Gesture Handler

ERNE — Autonomous ticket execution — polls a provider, picks up ready tickets, and runs the full ERNE pipeline (validate, plan, code…

Design consistent error codes following the PREFIX_CATEGORY_NUMBER format.

Implements consistent, language-agnostic error code structures following the PREFIX_CATEGORY_NUMBER format for better debugging and…

Error Message Style Guide for Validation Errors

Ensure user-facing errors and empty states are clear, actionable, and HIG-aligned.

Use when building Hono web applications or when the user asks about Hono APIs, routing, middleware, JSX, validation, testing, or streaming.

Run ESLint for JavaScript/TypeScript code quality and style enforcement.

Query Etherscan V2 API for gas prices, account transactions, balances, token transfers, contract source code, and compilation metadata via…

Explains the technical architecture for bridging React and TypeScript with Unreal Engine 5's UMG UI system.