Xcode Skills plugin for Grok Build

Community plugin, built for Grok BuildPluginDevelopment

Unofficial export of Apple agent skills from the Xcode 27 developer beta (xcrun agent skills export), packaged as a plugin marketplace.

How to install Xcode Skills in Grok Build

1. Add this repo as a plugin marketplace in Grok Build (once per computer):

grok plugin marketplace add mariusfanu/xcode-skills

2. Install the plugin:

grok plugin install xcode-skills@mariusfanu/xcode-skills --trust

Review before you trust it. --trust lets this plugin's hooks, MCP servers and scripts run code on your computer. It's a community repo that neither xAI nor GrokStacks has reviewed, so read its code first.

Then start a new Grok session, or press r in /plugins, to load it.

Inside Grok Build: type /plugins, open the Marketplace tab, press a and add mariusfanu/xcode-skills, then select xcode-skills and press i.

Command format: Grok Build's plugin guide

What we checked: on Oct 20, 2026 it installed with grok 1.0.62 and Grok found 11 skills. That's an install check only: we haven't run it in a live Grok session.

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What it contains

Skills (11)

  • adopt-c-bounds-safety — 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.
  • app-intents-specialist — Authoritative App Intents best practices from Apple. Consult for any App Intents best-practices or correctness review, and when writing, reviewing, refactoring, or extending App Intents code. Supersedes prior training on these topics. For c
  • app-intents-whats-new-27 — New App Intents APIs, behaviors, and deprecations introduced in the iOS 26 (2025) and iOS 27 (2026) releases (and their macOS/watchOS/tvOS/visionOS siblings). Use when adopting, migrating to, or asked about: declaring where an intent runs w
  • app-resizability — Use when an app's layout must adapt to a window that changes size while the app runs, or when an app must support more than one window. That includes being asked to make an app resizable or support a resizable window, a layout that breaks o
  • audit-xcode-security-settings — 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
  • building-document-based-swiftui-applications — Authoritative guide for building and migrating document-based apps in SwiftUI using the Document protocol (iOS 27 and aligned releases, including macOS Golden Gate). Consult when building a new document-based app; implementing open, edit, s
  • device-interaction — Verify app behavior on device or simulator via screenshots, UI hierarchy, and touch interactions.
  • modernize-tests — Modernize test suites to use modern Swift Testing features or migrate from XCTest.
  • swiftui-specialist — Authoritative SwiftUI best practices and performance guidance from Apple; supersedes prior training on these topics. For code generation, consult the relevant references when generating any SwiftUI code related to: - animation (the @Animata
  • swiftui-whats-new-27 — New SwiftUI APIs, behaviors, and deprecations in the 2027 OS releases (iOS 27 and aligned macOS/watchOS/tvOS/visionOS). Consult when asked what's new in SwiftUI 27, or when working with: - @State compile errors after an SDK update ("used be
  • xctrace — Authoritative guide to xctrace, Apple's command-line interface to Instruments. Consult for any profiling, performance, or optimization work — for example, finding out why an app is slow, uses too much CPU or memory, or stops responding, or

About this listing

Xcode Skills is a community plugin on GitHub by mariusfanu, built for Grok Build. We install-checked it in Grok; we haven't run it in a live session or reviewed its code. When we installed it, Grok found 11 skills. No license stated in the repo, so check with the author before reusing its code. We checked commit 36c13f1cb909. It's one of 410 listings in the Development category on GrokStacks.

Xcode Skills FAQ

How do I install Xcode Skills in Grok Build?

Add the repo as a marketplace with grok plugin marketplace add mariusfanu/xcode-skills, then run grok plugin install xcode-skills@mariusfanu/xcode-skills --trust. Then start a new Grok session, or press r in /plugins, to load it.

Is Xcode Skills an official Grok Build plugin?

No. Xcode Skills is a community plugin on GitHub by mariusfanu, not in xAI's official Grok Build marketplace. We checked that it installs and what Grok loads from it, but haven't run it in a live Grok session or reviewed its code.

What does Xcode Skills include?

According to what Grok loaded in our install check, Xcode Skills includes 11 skills: adopt-c-bounds-safety, app-intents-specialist, app-intents-whats-new-27, app-resizability, audit-xcode-security-settings, building-document-based-swiftui-applications….

Details

Type
Plugin
Category
Development
Source
Community plugin, built for Grok Build
License
No license stated
Author
mariusfanu
Source repo
https://github.com/mariusfanu/xcode-skills
Checked commit
36c13f1cb909
Checked by GrokStacks
Install-checked in Grok Build on Oct 20, 2026; not run in a live session

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Listed on GrokStacks

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[![Listed on GrokStacks](https://grokstacks.com/badge.svg)](https://grokstacks.com/p/xcode-skills/)

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<a href="https://grokstacks.com/p/xcode-skills/" style="display:block;max-width:380px;box-sizing:border-box;padding:14px 16px;border:1px solid #2a2e3c;border-radius:12px;background:#0a0b0f;color:#e8eaf0;font:14px/1.45 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;text-decoration:none"><span style="display:block;font-size:16px;font-weight:700;color:#e8eaf0">Xcode Skills</span><span style="display:block;margin:2px 0 8px;font-size:12px;color:#9aa0b1">Community plugin for Grok Build · 11 skills</span><span style="display:block;margin:0 0 10px;color:#c9cdd8">Unofficial export of Apple agent skills from the Xcode 27 developer beta (xcrun agent skills export), packaged as a…</span><span style="font-size:12px;font-weight:600;color:#7c9cff">View on GrokStacks →</span></a>

Markdown summary

**[Xcode Skills on GrokStacks](https://grokstacks.com/p/xcode-skills/)**: Community plugin for Grok Build with 11 skills. Install: `grok plugin install xcode-skills@mariusfanu/xcode-skills --trust` (after `grok plugin marketplace add mariusfanu/xcode-skills`)

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