Can it manage multiple simulators?

It can list all available devices, boot specific models, and reset simulator states to ensure a clean testing environment.

How does the skill handle Xcode build errors?

It runs the build through a diagnostic pipe to capture logs, categorizes errors by type (imports, logic, or types), and applies fixes in dependency order.

Does it support Swift concurrency debugging?

Yes, it is designed to identify and fix common modern Swift issues like actor isolation, @MainActor requirements, and @Observable patterns.

Can I record simulator videos with this skill?

Yes, it uses xcrun simctl commands to record video or take screenshots of the booted simulator for visual debugging.

iOS Build & Simulator Expert

Name: iOS Build & Simulator Expert
Author: willsigmon

bywillsigmon

•

Mobile Development

Diagnoses and resolves iOS build failures, Xcode compilation errors, and simulator issues to streamline Apple platform development.

The iOS Build Expert skill equips Claude with specialized knowledge of the Xcode ecosystem and Swift development workflows. It provides a structured approach to capturing and analyzing build logs, categorizing errors from missing imports to complex actor isolation issues, and executing targeted fixes. Beyond compilation, the skill offers robust simulator management capabilities via xcrun simctl, enabling developers to boot, reset, and record simulators directly through the Claude Code interface, ensuring a seamless development-to-test cycle for native iOS applications.

Key Features

01Comprehensive simulator management and environment resetting

027 GitHub stars

03Dependency and build setting verification for Package.swift and xcodegen

04Automated iOS build log capture and error categorization

05Visual debugging tools for simulator screenshots and video recording

06Expert diagnostics for Swift actor isolation and concurrency issues

Use Cases

01Debugging Swift UI @Observable patterns and concurrency-related type mismatches

02Managing local simulator environments for automated testing and UI verification

03Resolving complex Xcode compilation errors and module resolution failures

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add willsigmon/sigstack ios-build-expert

For use in Claude.ai and ChatGPT

Download Skill