Use when you cannot inspect media directly and the user provides images, screenshots, image-heavy PDFs, or video frames. Send each image blob to the configured multimodal alternate, read its response, then continue using that response as context.
Getting Liquid Glass to render its specular rim (and its shadow) on macOS 26 — active appearance, tint rules, nesting rules, clipping rules, and shadow breathing room. Use when glass looks flat/rimless, when a glass panel or tooltip lacks the edge highlight…
Guide for the C -fbounds-safety language extension. Covers the language model, pointer annotations, adopting bounds-safety in existing C code, compiler build settings and modes, and runtime debugging of bounds violations.
Apple's complete prompt stack for Xcode 27's coding agent, as shipped. Consult when designing or reviewing agent prompts, tool descriptions, planner/executor splits, edit-application strategies, or context-window assembly — this is a production system's…
Apple's own documentation for APIs introduced in the Xcode 27 SDKs (macOS 26, iOS 26). Consult before writing or reviewing code that touches any of them — this supersedes prior training, which predates these APIs. Covers: Liquid Glass adoption in AppKit,…
Audit and enable security-oriented Xcode build settings. Progressively enables compiler warnings, static analyzer checkers, and Enhanced Security features. Use when: user wants to secure their Xcode project, audit security settings, enable hardening, review…
Guide for the C -fbounds-safety language extension. Covers the language model, pointer annotations, adopting bounds-safety in existing C code, compiler build settings and modes, and runtime debugging of bounds violations.
Authoritative SwiftUI best practices from Apple. Consult for any SwiftUI best practices or performance review. Supersedes prior training on these topics. For code generation, consult the relevant references when generating any SwiftUI code related to the…