Developer Tools & Repos Agent Skills for ChatGPT

Thread-safe data persistence in Swift using actors — in-memory cache with file-backed storage, eliminating data races by design.

SwiftUI architecture patterns, state management with @Observable, view composition, navigation, performance optimization, and modern…

Implement proven backend architecture patterns including Clean Architecture, Hexagonal Architecture, and Domain-Driven Design.

Master authentication and authorization patterns including JWT, OAuth2, session management, and RBAC to build secure, scalable access…

Guidelines for preparing changelog entries for nextest releases following Keep a Changelog format

Implement DeFi protocols with production-ready templates for staking, AMMs, governance, and lending systems.

Master error handling patterns across languages including exceptions, Result types, error propagation, and graceful degradation to build…

Master advanced Git workflows including rebasing, cherry-picking, bisect, worktrees, and reflog to maintain clean history and recover from…

Guide for maintaining the MassGen model and backend registry.

Create new Claude Code Skills with proper YAML frontmatter, progressive disclosure structure, and complete directory organization.

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

Guide users through creating Agent Skills for Claude Code.

This skill provides safe update capabilities for GitHub SpecKit installations, preserving customizations while applying template updates.

Three.js scene setup, cameras, renderer, Object3D hierarchy, coordinate systems.

Three.js interaction - raycasting, controls, mouse/touch input, object selection.

Three.js lighting - light types, shadows, environment lighting.

Three.js materials - PBR, basic, phong, shader materials, material properties.

Master the uv package manager for fast Python dependency management, virtual environments, and modern Python project workflows.

This skill should be used when the user asks to "create a hookify rule", "write a hook rule", "configure hookify", "add a hookify rule"…

Microsoft Dynamics CRM integration via Apideck's CRM unified API — same methods work across every connector in CRM, switch by changing…

Framework (OSS). Migrate an existing Apple/Swift Expo native module from the Expo Modules API 1.0 definition DSL to the 2.0 macro API…