Developer Tools & Repos Agent Skills for HTTP / API

Creates simple Three.js web apps with scene setup, lighting, geometries, materials, animations, and responsive rendering.

Use when changing Tiny World Builder API, webhook, SSE, MCP, plugin, or automation examples.

Use when changing Tiny World Builder Settings modal tabs, panels, controls, rendering/world/material/crowd/AI settings, or settings…

Use when adding or modifying WebXR, AR placement, VR immersion, headset controller input, or XR rendering modes in Tiny World Builder.

Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that…

This skill should be used when writing or parsing TOON (Token-Oriented Object Notation) files.

Trust Wallet open-source libraries — Wallet Core (HD wallets, address derivation, tx signing in Swift/Kotlin/TypeScript/Go for 140+…

Use when authoring TypeScript libraries or npm packages - covers project setup, package.json exports, build tooling (tsdown/unbuild), API…

Enforces professional coding standards and architectural patterns for TypeScript, React, and Node.js development.

Structured experiment loop — tune UE parameters one at a time with visual scoring.

A comprehensive skill for integrating and using uView Pro with UniAppX projects.

Unity editor automation specialist - Masters custom EditorWindows, PropertyDrawers, AssetPostprocessors, ScriptedImporters, and pipeline…

Supports Unity scene and GameObject creation, management, and analysis.

Open-world and environment specialist - Masters UE5 World Partition, Landscape, procedural foliage, HLOD, and large-scale level streaming…

Upgrades React Native apps to newer versions by applying rn-diff-purge template diffs, updating package.json dependencies, migrating…

This skill should be used when building iOS apps with xtool (Xcode-free iOS development), creating xtool projects, adding app extensions…

If the project uses uv, use this skill. Use this skill to create/manage Python projects and environments with `uv`, add/remove…

Natural-language undo, rollback, and checkpoints that hide git entirely — "ย้อนกลับ", "undo", "ไม่เอาแล้ว", "เอาอันเดิมคืน" map to safe…

Check Web API and CSS feature compatibility in WebF - determine what JavaScript APIs, DOM methods, CSS properties, and layout modes are…

Install WebF native plugins to access platform capabilities like sharing, payment, camera, geolocation, and more.

Master Bevy's Entity Component System (ECS) in Rust, covering Systems, Queries, Resources, and parallel scheduling.