Agent skill · software engineering · dpearson2699
gamekit
Integrate Game Center features using GameKit. Use when authenticating GKLocalPlayer, checking player restrictions, submitting leaderboard scores, reporting achievements, implementing real-time or turn-based matchmaking, handling GKMatch data, showing the Game Center dashboard or access point, adding challenges and friend invitations, saving game data, or verifying player identity on a server.
Why this skill is useful
Provides specific integration patterns and commands for using GameKit with Game Center features that the AI wouldn't reliably generate on its own.
What it needs
About 7k tokens when loaded. Last updated 2026-07-31. 973 stars on the source repository.
What this skill does
GameKit Use GameKit for Game Center authentication, competition, matchmaking, social surfaces, and saved-game handoffs; keep rendering, board logic, and full SharePlay group-activity design in their owning framework skills. Contents Authentication Access Point Dashboard Leaderboards Achievements Real-Time Multiplayer Turn-Based Multiplayer Common Mistakes Review Checklist References Authentication All GameKit features require the local player to authenticate first. Set the authenticateHandler on GKLocalPlayer.local early in the app lifecycle. GameKit calls the handler multiple times during initialization. Guard on GKLocalPlayer.local.isAuthenticated before calling any GameKit API. For server-side identity verification, see references/gamekit-patterns.md. Access Point GKAccessPoint displays a Game Center control in a corner of the screen. When tapped, it opens the Game Center dashboard. Configure it after authentication. Hide the access point during gameplay and show it on menu screens: Open the dashboard to a specific state programmatically. Specific leaderboard access-point triggers require iOS 18+. Dashboard Present the Game Center dashboard using GKGameCenterViewController. The presenting object must conform to GKGameCenterControllerDelegate. Dashboard states include .dashboard, .leaderboards, .achievements, .challenges, .localPlayerProfile, and .localPlayerFriendsList. Leaderboards Configure leaderboards in App Store Connect before submitting scores. Supports classic (persistent) and recurring (time-limited, auto-resetting) types. Submitting Scores Submit to one or more leaderboards using the class method: Loading Entries GKLeaderboard.Entry provides player, rank, score, formattedScore, context, and date. For recurring leaderboard timing, leaderboard images, and leaderboard sets, see references/gamekit-patterns.md. Achievements Configure achievements in App Store Connect. Each achievement has a unique identifier, point value, and localized title/description. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills dpearson2699/gamekit