Developer Tools & Repos Agent Skills for Grok Build

Use when encountering BUILD FAILED, test crashes, simulator hangs, stale builds, zombie xcodebuild processes, "Unable to boot simulator"…

Reference — all 20 Xcode MCP tools with parameters, return schemas, and examples

Build and capture SwiftUI previews for visual analysis in Codex.

Safely modifies Xcode projects (.pbxproj) to add Swift Packages and link files.

Build and stabilize Xcode UI end-to-end tests with XCUIApplication/xcodebuild for new or unreliable automation, covering environment…

Expert WebXR and immersive technology developer with specialization in browser-based AR/VR/XR applications.

Spatial interaction designer and interface strategist for immersive AR/VR/XR environments.

This skill should be used when working with xterm.js terminal implementations, React-based terminal applications, WebSocket terminal…

Use when reviewing or designing software architecture.

Generate multi-format configuration file loaders for YAML, JSON, and TOML formats.

Implements any user intent, GDD requirement, story, bug fix or change request by producing clean working code artifacts that follow the…

Analyze and fix redundant or self-explanatory inline comments — remove noise, promote genuine documentation to TSDoc

Analyze and fix unnecessary useState, derived state, and server-state-in-local-state anti-patterns

Library-agnostic Flutter/Dart code review checklist covering widget best practices, state management patterns (BLoC, Riverpod, Provider…

Kotlin Coroutines and Flow patterns for Android and KMP — structured concurrency, Flow operators, StateFlow, error handling, and testing.

Idiomatic Kotlin patterns, best practices, and conventions for building robust, efficient, and maintainable Kotlin applications with…

Expert knowledge of Godot Engine game development including scene creation, node management, GDScript programming, and project structure.

Expert knowledge of Godot performance optimization, profiling, bottleneck identification, and optimization techniques.

This skill should be used when the user asks about "game rules", "scoring", "phases", "Attack token", "Exploit token", "Ghost token"…

This skill should be used when the user asks about "namespaces", "singleton", "TileManager", "GameManager", "TokenManager"…

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through…