Developer Tools & Repos Agent Skills for ChatGPT

Use when implementing SwiftUI search — .searchable, isSearching, search suggestions, scopes, tokens, programmatic search control (iOS…

Apple-authored SwiftUI and platform guidance extracted from Xcode.

Simplifies code by minimizing complexity, eliminating duplication, and prioritizing legibility for contributors.

This skill should be used when the user asks to "create a hook", "add a PreToolUse/PostToolUse/Stop hook", "validate tool use", "implement…

This skill should be used when the user asks about "plugin settings", "store plugin configuration", "user-configurable plugin", ".local.md…

Sync the Print Platform Postman collection (My PHNX workspace) with API changes in the DistributionPrintPlatformApi repo - new/changed…

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes

Builds multiplayer spatial board games using TabletopKit on visionOS.

This skill should be used when the user asks "why is p99 bad when p50 is fine", "how do I reduce tail latency", "should I use hedged…

Tailwind CSS v4.2 browser-runtime patterns for HyperFrames compositions.

Use when working with Tailwind CSS utility classes for layout, spacing, typography, colors, and visual effects.

Build apps with the Claude API or Anthropic SDK.

Manage server state in React with TanStack Query v5.

Build type-safe, file-based React routing with TanStack Router.

TanStack Router best practices for type-safe routing, data loading, search params, and navigation.

Build headless data tables with TanStack Table v8.

3D game development principles. Rendering, shaders, physics, cameras.

Specialized guide for migrating Godot 3.x projects to Godot 4 (GDScript 2.0), covering syntax changes, Tweens, and exports.

Master Godot 4 GDScript patterns including signals, scenes, state machines, and optimization.

Three.js post-processing - EffectComposer, bloom, DOF, screen effects.

Production patterns for Unity's Data-Oriented Technology Stack (DOTS) including Entity Component System, Job System, and Burst Compiler.