Author a declarative invariant rule module for `jidoka invariants`.
Reach for the smallest solution that actually works before writing code: question whether the task needs to exist (YAGNI), prefer the…
Use when creating or modifying an OpenGL shader or its integration.
Use whenever a task writes or modifies PHP code, including PHP files, embedded PHP, tests, scripts, endpoints, and PHP code snippets.
How to write modern Swift well — modeling with value types, Swift 6 data-race safety and approachable concurrency (@concurrent…
Guides implementation of Gatekeeper Workers that bridge Gadgets to external services.
Guide for writing or reviewing PostHog kea logic files (`*Logic.ts` / `*Logic.tsx`).
Use when cutting a modpack release. Creates <project>/docs/release-changelog.md if absent; appends a new version section with grouped…
Use when you have a spec or requirements for a multi-step task, before touching code
Create or modify ryOS backend API routes under api/ using the shared apiHandler wrapper, request-auth, Redis, rate limiting, and CORS…
Implement proven backend architecture patterns including Clean Architecture, Hexagonal Architecture, and Domain-Driven Design.
Implement Command Query Responsibility Segregation for scalable architectures.
Manage major dependency version upgrades with compatibility analysis, staged rollout, and comprehensive testing.
Master error handling patterns across languages including exceptions, Result types, error propagation, and graceful degradation to build…
Master ES6+ features including async/await, destructuring, spread operators, arrow functions, promises, modules, iterators, generators…
Master Next.js 14+ App Router with Server Components, streaming, parallel routes, and advanced data fetching.
Build production-ready Node.js backend services with Express/Fastify, implementing middleware patterns, error handling, authentication…
Wwise integration skill for sound banks, RTPC, and interactive music.
wxPython GUI expert -- sizer layouts, event handling, AUI framework, custom controls, threading (wx.CallAfter/wx.PostEvent), dialog…
**WORKFLOW SKILL** - Guide for migrating Xamarin.iOS, Xamarin.Mac, and Xamarin.tvOS native apps to .NET for iOS, .NET for macOS, and .NET…
Xcode MCP setup — enable mcpbridge, per-client config, permission handling, multi-Xcode targeting, troubleshooting