Claude Skills by gaelic-ghost

Guide legacy Core Audio and Audio Toolbox modernization and repair, including AudioUnit, AudioQueue, AudioConverter, AudioStreamBasicDescription, AudioComponentDescription, OSStatus diagnostics, callback lifetime, pointer ownership, Swift bridging, and migration decisions toward AVFAudio when appropriate. Use when fixing low-level Apple audio implementations or deciding whether to keep or replace legacy Core Audio code.

Guide Core Media timing and sample-buffer implementation and repair, including CMTime, CMTimeRange, CMClock, CMTimebase, CMFormatDescription, CMSampleBuffer, attachments, readiness, presentation and decode timestamps, dropped buffers, AVSampleBufferDisplayLayer, AVSampleBufferRenderSynchronizer, and synchronization diagnostics. Use when media bugs involve timestamps, sample buffers, timing drift, or format descriptions.

Guide DeviceCheck and App Attest adoption in Apple-platform apps using DCDevice, DCAppAttestService, app IDs, entitlements, server challenges, attestation objects, assertions, receipts, fraud-risk metrics, sandbox/production environments, rollout planning, and explicit client/server handoffs. Use when implementing or diagnosing DeviceCheck per-device two-bit state, App Attest app-instance integrity, Apple server API validation, App Attest environment setup, macOS App Attest verification, App ...

Trace Apple entitlements across project source, account/profile authorization, final signed main or nested code, and runtime policy or consent. Use for missing or rejected entitlements, export-only failures, helpers, and re-signing.

Explore Apple and Swift documentation across Xcode MCP docs, Dash, source repositories, generated docs, and readable official web docs, including search, browse, source selection, local-docs fallback, and optional Dash install or generation follow-up. Use when Codex needs Apple or Swift docs help rather than Xcode execution or repo-guidance sync work.

Prepare, stage, and safely submit high-signal Apple Feedback Assistant bug reports, crash reports, enhancement requests, and Foundation Models feedback attachments. Use when Codex needs to gather reproducible evidence for Apple software, SDKs, developer tools, hardware, documentation, beta releases, or system-model behavior; operate the Feedback Assistant app or website; or turn a Foundation Models session into a reviewable feedback attachment.

Choose File Provider for Apple remote-storage synchronization or scoped macOS Finder Sync UI. Use when a feature needs cloud-backed files or Finder decoration without confusing Finder Sync with a sync engine.

Guide SwiftLint and SwiftFormat integration across CLI, Xcode build phases, Xcode source-editor workflows, Swift Package plugins, AppleScript, Git hooks, and GitHub Actions, including exporting SwiftFormat for Xcode settings into a checked-in project config file. Use this first when a later source-organization pass needs a clean formatting baseline.

Design, preview, validate, and integrate Apple app icons with Icon Composer. Use when a task mentions Icon Composer, .icon documents, Liquid Glass app icons, ictool preview exports, app icon design for iOS, iPadOS, macOS, or watchOS, or guided Icon Composer GUI work through Computer Use.

Capture and interpret reproducible iOS Simulator performance and memory evidence. Use when an iOS issue needs ETTrace/symbolication, a memgraph, leak ownership traces, or before/after runtime proof rather than a code-only guess.

Prepare and reset persistent Linux development guests on macOS. Use when comparing container machine, Lima or Colima, and full VMs for distros, init systems, services, custom boot, disks, Rosetta, or nested virtualization.

Prepare and reset clean macOS development guests on Apple silicon. Use for restore-image compatibility, VM identity, installation, resources, OS-version testing, signing, privacy, and disposable macOS research guests.

Inspect, prepare, validate, and troubleshoot exported macOS distribution artifacts. Use when checking signing identities, entitlements, hardened runtime, nested code, Gatekeeper, notarization readiness/results, stapling, or distribution-only launch failures.

Diagnose macOS privacy permissions from the operation and responsible executable. Use for Accessibility, Automation, Developer Tools, recording or input, protected data, Full Disk Access, PPPC, prompts, Settings, resets, and helpers.

Design and diagnose macOS file access. Use for App Sandbox, App Groups, user selection, security-scoped bookmarks across relaunches, helpers or extensions, stale access, TCC overlap, POSIX or ACL, Data Vault, and SIP denials.

Design, implement, and validate SwiftUI and AppKit macOS window behavior. Use when choosing window scenes, toolbar or title-bar treatment, drag regions, placement, resizing, restoration, document or utility windows, and focused window ownership.

Design macOS MailKit extensions for content blocking, message actions, compose sessions, and message security with explicit privacy, capability, target, and validation boundaries. Use when a macOS app needs to extend Apple Mail.

Guide privacy-preserving PhotosUI media selection and PhotoKit authorization, limited-library access, assets, collections, fetches, change observation, image/video requests, caching, iCloud delivery, asset resources, creation transactions, albums, content editing, adjustment data, nondestructive edits, cancellation, and diagnostics. Use when selecting user media or reading, saving, observing, organizing, exporting, or editing the Apple Photos library.

Guide macOS Safari integration decisions across Safari Web Extensions, Safari Web Inspector Extensions, Safari App Extensions, SafariServices APIs, content blockers, extension messaging, and app-to-Safari control surfaces. Use when the user wants a Mac app to extend, message, open, inspect, debug, or coordinate with Safari without confusing WebExtension, Web Inspector, native extension, content blocker, authentication, or AppleScript-style automation paths.

Inspect a scoped live site in Safari through Safari Technology Preview's local MCP server. Use for Safari-specific DOM, console, network, screenshot, accessibility, performance, interaction, responsive, or print-media evidence.

Guide SF Symbols selection, inspection, customization, rendering modes, variable color, symbol effects, animated symbols, custom symbols, accessibility semantics, availability checks, and Apple app integration. Use when a task mentions SF Symbols, the SF Symbols app, systemImage names, symbolRenderingMode, foregroundStyle palette or hierarchical color, multicolor symbols, variableValue, symbolEffect, custom symbol templates, symbol export, asset-catalog symbol resources, or choosing symbols f...

Organize Swift source trees and oversized Swift files by feature, layer, and declaration group; split large files, normalize `// MARK:` sections, enforce plain-language block-comment file headers, and move TODO and FIXME text into ledger files. Use after `format-swift-sources` has established a clean formatting baseline.

Build, integrate, test, and diagnose Swift OpenAPI Generator clients in Apple-platform apps and Swift packages using OpenAPIURLSession, OpenAPIRuntime, URLSessionTransport, SwiftPM plugins, Apple docs, Dash docsets, and clear handoffs to server-side Swift OpenAPI workflows when the API contract or server transport changes.

Guide ordinary build, run, manifest, dependency, resource, Metal-packaging, and Release-versus-Debug work in existing Swift Package Manager repositories. Use when Package.swift is the source of truth and the task is package build or run work rather than testing or package extensions.

Plan and validate SwiftPM build or command plugins, macros, package traits, generated sources, permissions, and Xcode handoffs. Use for Package.swift extension work or Swiftly/Xcode capability differences.

Guide Swift Testing, XCTest holdouts, code coverage, xctestplan handoff conditions, async test design, semantic accessibility-test boundaries, test-fixture organization, and package test-diagnosis work in existing Swift Package Manager repositories. Use when Package.swift is the source of truth and the task is primarily about testing rather than package build or run work.

Design, implement, migrate, test, and integrate SwiftData persistence in Apple apps using current Apple documentation. Use for @Model schemas, ModelContainer and ModelContext ownership, @Query integration, relationships, uniqueness, deletion, concurrency, migrations, preview or test stores, and boundaries between persistent models, runtime domain values, records, and DTOs.

Guide SwiftUI animation design, implementation, repair, and validation across withAnimation, animation(_:value:), transactions, transitions, content transitions, matchedGeometryEffect, navigation transitions, PhaseAnimator, KeyframeAnimator, TimelineView, symbol effects, reduce-motion behavior, previews, and performance-aware handoffs. Use when a task mentions SwiftUI animation, motion, transition design, animated state changes, hero transitions, phase or keyframe animation, symbolEffect in S...

Guide SwiftUI app-structure decisions for Apple apps across `App`, scenes, commands, focus, environment, preferences, window and document coordination, and reusable view composition. Use when the user wants help deciding where ownership belongs in a SwiftUI app, which data-flow mechanism fits a responsibility, or how to correct wrapper-heavy and state-scattering SwiftUI shapes without drifting into generic styling or execution work.

Audit and repair SwiftUI code toward self-contained declarative components, local reactive state, framework-native data flow, and simple reusable view interfaces. Use when an existing SwiftUI feature has external ViewModels, injected collaborators, imperative coordination, duplicated state, environment dumping, or unclear component ownership.

Design, implement, review, and validate SwiftUI Liquid Glass interfaces across iOS and macOS. Use when choosing native glass effects, grouped glass surfaces, glass button styles, morphing transitions, availability fallbacks, or removing conflicting custom chrome.

Diagnose SwiftUI rendering, scrolling, update, CPU, memory, image, layout, and animation performance from code and evidence. Use when a SwiftUI feature is slow, janky, broadly invalidating, memory-heavy, or needs a code-first audit before Instruments capture.

Add, configure, present, style, test, and troubleshoot Apple TipKit tips in SwiftUI, UIKit, and AppKit using current Apple documentation. Use for Tip protocol definitions, Tips.configure, TipView inline tips, popoverTip tooltip popovers, TipUIView, TipUIPopoverViewController, TipNSView, TipNSPopover, rules, parameters, events and donations, actions, invalidation, display frequency, persistent datastores, testing overrides, and tips that do not appear or reappear correctly.

Discover local user-guide topics for installed Apple Mac apps through the Tips HelpViewer catalog, with app matching, installed-version capture, result verification, and authoritative fallback routing. Use when Codex needs task-specific help for an installed Apple app, needs to find a menu command through local Help, or must determine whether Tips/HelpViewer has a usable guide before using in-app Help, Xcode-local docs, Dash, or official vendor documentation.

Guide remote-first tvOS SwiftUI and UIKit decisions: focus navigation, Large Text, Apple TV capability gates, and TVMLKit migration. Use for Apple TV interaction, focus geometry, accessibility, or platform-boundary questions.

Guide tvOS media playback: AVKit-first player choice, custom escalation, remote commands, Now Playing, and validation. Use for AVPlayerViewController, MPRemoteCommandCenter, playback focus, or media-control boundaries.

Guide VideoToolbox compression and decompression, codec-session creation and properties, encoder/decoder selection, hardware capability, real-time and multipass policy, Core Video pixel buffers and pools, Metal and IOSurface interop, Core Media compressed samples and format descriptions, color/HDR attachments, OSStatus diagnostics, and performance repair. Use when low-level per-frame codec control is primary.

Build and diagnose custom macOS and Linux VM hosts with Apple's Virtualization framework. Use for platform and boot configuration, devices, VM bundles, lifecycle, save and restore, UI, entitlements, and framework errors.

Guide custom Core ML image classification, object detection, semantic segmentation, and feature-output integration through Apple Vision, including model provenance, configuration, image constraints, crop-and-scale behavior, typed observations, confidence, postprocessing, compute units, evaluation, and performance repair. Use when a custom Core ML model interprets images or video frames.

Guide Apple Vision implementation and repair for text, barcode, face, landmark, rectangle, contour, saliency, trajectory, pose, segmentation, tracking, feature-print, and image-location analysis across still images and video. Use when Apple-provided Vision requests, observations, orientation, normalized coordinates, request revisions, sequence state, cancellation, or live-frame scheduling are primary.

Guide build, run, preview-adjacent, workspace-inspection, diagnostics, toolchain, and guarded mutation work in existing Xcode-managed projects and workspaces. Use when Xcode-aware execution is needed and the task is primarily about build, run, or project-integrity work rather than testing.

Guide Xcode coding-intelligence setup, ACP-hosted agents, external-agent access through xcrun mcpbridge, permissions, Xcode-only agent configuration, and stable or beta agentic workflows.

Diagnose a running Apple app through Xcode’s active LLDB debugging session and assess the experimental Xcode 27 lldb-mcp executable. Use when setting breakpoints, inspecting frames or variables, issuing LLDB commands, or distinguishing a usable Xcode debugger session from an unavailable standalone debugger MCP server.

Manage and validate simulated and physical Apple devices through Xcode Device Hub. Use when selecting or inspecting run destinations, interacting with an app, changing simulated-device environment settings, capturing screenshots or videos, pairing a device, or collecting diagnostics.

Plan, implement, review, and validate Apple-platform localization with Xcode String Catalogs. Use for .xcstrings setup, localizable SwiftUI and Foundation text, string tables, comments, plural and device variants, XLIFF handoff, locale UI checks, or Xcode 27 agent-assisted translation.

Guide Swift Testing, XCTest, XCUITest, XCUIAutomation-oriented mechanics, code coverage, xctestplan matrices, accessibility-verification follow-through, test filtering, retries, diagnostics, and test-specific fallback work in existing Xcode-managed projects and workspaces. Use when Xcode-aware execution is needed and the task is primarily about testing rather than build or run work.

Choose a cloud deployment path before implementation. Route AWS work to the official AWS Agent Toolkit and Azure work to Microsoft's Azure Skills plugin while keeping credentials, regions, and mutation boundaries explicit.

Create a Dockerized-service release contract with clean GitHub Actions builds, main-anchored tags, immutable digest manifests, published-release deployments, production approval, health checks, and exact-digest rollback.

Choose the right cloud AI inference, model training, model conversion, or GPU infrastructure path before implementation. Use when Codex works with Runpod, Hugging Face, AWS, AWS Lambda inference, Vast.ai, CoreWeave, GPU Pods, Serverless GPU endpoints, model weights, vLLM, TGI, SGLang, custom containers, LoRA/adapters, dataset upload, model conversion, cheap GPU rentals, or managed inference endpoints.

Companion CLIs for Runpod workflows — HuggingFace, GitHub, Docker, and AWS.