XC

Automates Xcode build, test, and device management tasks via XcodeBuildMCP.

Install

mkdir -p .claude/skills/xcodebuildmcp && curl -L -o skill.zip "https://agentskills.codes/api/skills/download/3761" && unzip -o skill.zip -d .claude/skills/xcodebuildmcp && rm skill.zip

Installs to .claude/skills/xcodebuildmcp

Activation

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Official skill for XcodeBuildMCP. Use when doing iOS/macOS/watchOS/tvOS/visionOS work (build, test, run, debug, log, UI automation).
132 chars✓ has a “when” trigger
Advanced

Key capabilities

  • Configure project and simulator defaults
  • Build and test apps on simulators and devices
  • Stream logs from simulators and devices
  • Attach LLDB debugger
  • Perform UI automation tasks

How it works

It interfaces with XcodeBuildMCP to manage build cycles and simulator states, requiring a session context to be established before execution.

Inputs & outputs

You give it
Build or test command intent
You get back
Execution logs and test results

When to use xcodebuildmcp

  • Running automated UI tests on a simulator
  • Capturing device logs for debugging
  • Building and deploying to physical devices
  • Configuring project schemes and build settings

About this skill

XcodeBuildMCP

Use XcodeBuildMCP tools instead of raw xcodebuild, xcrun, or simctl.

Capabilities:

  • Session defaults: Configure project, scheme, simulator, and device defaults to avoid repetitive parameters
  • Project discovery: Find Xcode projects/workspaces, list schemes, inspect build settings
  • Simulator workflows: Build, run, test, install, and launch apps on iOS simulators; manage simulator state (boot, erase, location, appearance)
  • Device workflows: Build, test, install, and launch apps on physical devices with code signing
  • macOS workflows: Build, run, and test macOS applications
  • Log capture: Stream and capture logs from simulators and devices
  • LLDB debugging: Attach debugger, set breakpoints, inspect stack traces and variables, execute LLDB commands
  • UI automation: Capture screenshots, inspect view hierarchy with coordinates, perform taps/swipes/gestures, type text, press hardware buttons
  • SwiftPM: Build, run, test, and manage Swift Package Manager projects
  • Project scaffolding: Generate new iOS/macOS project templates

Only simulator workflow tools are enabled by default. If capabilities like device, macOS, debugging, or UI automation are not available, the user must configure XcodeBuildMCP to enable them. See https://xcodebuildmcp.com/docs/configuration for workflow configuration.

Step 1: Establish Session Context

  • Call session_show_defaults before the first build/run/test action in a session.
  • Use discover_projs only when defaults show missing or incorrect project/workspace context.
  • Do not run discovery speculatively or in parallel with session_show_defaults.
  • For simulator run intent, prefer the combined build-and-run tool instead of separate build then run calls.
  • Do not chain build-only then build-and-run unless the user explicitly requests both.

Step 2: Understand Workflow-Scoped Tool Availability

  • Not all tools are enabled by default; tool availability depends on enabled workflows.
  • If a tool is expected but missing, check enabled workflows first.
  • Update enabled workflows in .xcodebuildmcp/config.yaml, then ask user to reload/restart the session to surface refreshes.

Step 3: Report Context Clearly

  • Return the active defaults context used for execution (project/workspace, scheme, simulator/device).
  • For failures, include the exact failing step and the next actionable command/tool call.

When not to use it

  • Directly using raw xcodebuild commands
  • Speculative project discovery

Prerequisites

XcodeBuildMCP configurationEnabled workflows in config.yaml

Limitations

  • Requires explicit workflow configuration for advanced features
  • Simulator tools are the only default-enabled features

How it compares

It abstracts raw CLI tools into a managed session, preventing repetitive parameter entry and handling simulator state automatically.

Compared to similar skills

xcodebuildmcp side by side with the closest alternatives in the catalog.

SkillInstallsUpdatedSafetyDifficulty
xcodebuildmcp (this skill)243moNo flagsAdvanced
ios-simulator-skill272moReviewAdvanced
build-iphone-apps148moReviewAdvanced
developing-ios-apps12moReviewIntermediate

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