Coding standards, frameworks, refactoring, and code review (18.4K skills)
Guides the design and implementation of static Unreal Engine functions that an AI agent can call through the unreal-mcp server. It helps add tools to an existing toolset or create and register a new one, including schemas, documentation, and test coverage.
Create, update, and review reusable instruction bundles for Unreal Engine agents. Get guidance on choosing a Python class or project asset, writing the description and instructions, registering the skill, and checking how it will appear to the agent.
Diagnose Swift Concurrency errors and warnings, convert callback-based code to async/await, and plan Swift 6 migrations. Guidance accounts for actors, isolation boundaries, Sendable values, and project settings to help developers choose small, behavior-preserving fixes.
Diagnose Android WebView problems that appear only on certain devices, including slow startup, renderer process death, provider failures, lifecycle handling in Compose, and cookie issues. The skill points to practical patterns and ways to verify fixes.
Use the `gh` command-line tool to manage GitHub repositories, issues, pull requests, releases, Actions workflows, and gists. The skill also includes commands for searching, installing, listing, and updating agent skills.
Use this skill to diagnose common layout, navigation, and interaction problems in Compose screens. It provides focused patterns and verification steps for areas such as adaptive layouts, lists, sheets, sliders, text fields, and one-shot effects.
Use this guide to diagnose Compose visual issues involving themes, color tokens, artwork palettes, gradients, shimmer, glass and particle effects, animation, image loading, charts, and statistics. It maps visible symptoms to implementation pitfalls and verification steps.
Find practical guidance for Kotlin Multiplatform architecture and language pitfalls, from module boundaries and dependency injection to platform-specific compilation and formatting bugs. Each topic describes failure patterns and ways to verify them in a project.
Use this guide to diagnose Kotlin Multiplatform API issues involving Ktor clients, response parsing, authentication, retries, downloads, and WebSockets. It helps identify why a request can appear successful while data is lost or a connection never becomes usable.
Use this guide when building or debugging a Kotlin app’s data layer with Room/SQLite, DataStore, repositories, caches, or paging. It covers query and migration traps that can silently return wrong or missing data, plus patterns for imports and local-time analytics.
Use this guide to investigate playback problems in Media3/ExoPlayer and desktop engines, including crossfades, audio focus, loudness, queues, shuffle, position restore, and shared listening. Each entry describes a failure pattern and a way to verify it.
Scan added Kotlin or Compose Multiplatform lines for 32 known risky patterns. The skill directs the agent to inspect each matching trap and surrounding code, confirm whether it applies, and report confirmed issues with fixes and verification steps.
Diagnose reactive state and background-work problems in Kotlin and Compose Multiplatform apps, including StateFlow timing, job lifecycles, WorkManager scheduling, backups, crash reporting, logging, and widgets. Topics explain common failure modes and how to check them.
Consult nine practical debugging and engineering-method guides when a fix is not converging. They help choose a discriminating experiment, interpret build logs, check shared effects before removing a feature, and investigate repository history carefully.
Check skill directories against the agentskills.io specification and Claude Code best practices. The validation report identifies issues with names, descriptions, metadata, document length, reference links, and progressive disclosure so authors can revise their skills.
Plan and carry out a React Native upgrade by reviewing template changes, updating dependencies, and migrating iOS and Android configuration. The workflow also covers Expo SDK alignment, breaking API changes, and checks that both platforms build after the upgrade.
Build navigation interfaces with React Navigation 7 using patterns for stacks, tabs, drawers, and sheets. Get guidance on headers and safe areas, with API choices based on whether the app already has a navigation setup or is starting fresh.
Review React Native apps built for TV platforms, from remote and D-pad focus behavior to readable layouts, playback and DRM issues, performance on limited hardware, and accessibility. Get guidance tailored to the app’s TV stack and platform constraints.
Integrate React Native or Expo into an existing native iOS or Android app in stages using `@callstack/react-native-brownfield`. Follow either the Expo or bare React Native path to package app artifacts and add React Native screens to the native host.
Create a starter structure for a standalone React Native library or a local library inside an existing app using `create-react-native-library`. Use it to begin JavaScript libraries, native modules that expose platform features, or native UI components rendered in React Native.
Assess whether an existing mobile product should move to React Native and which path fits its evidence and constraints. The skill inventories client platforms, evaluates migration options, defines a representative checkpoint, and prepares baseline and ROI decision inputs before implementation.
Diagnose React Native performance issues by measuring frame rate, startup time, bundle and app size, memory use, and re-renders. The guide suggests targeted fixes across JavaScript, native code, animations, and bundling, then re-measure to confirm results.
Audit an AI agent workspace and organize its shared rules, skill sources, names, and host-specific bridges. The workflow helps keep Claude Code, Codex, and Grok aligned while making the authoritative skill files clear and easier to maintain over time.
Build and test the multi-module Morphia project with Maven or its project wrapper. Compile the code, run all or selected tests, verify integration tests, or install build artifacts, including commands for working with a specific module.