Axiom Xcode Mcp
Covers the full lifecycle of working with Xcode 26.3's built-in MCP server, from initial setup through daily usage. The skill splits into three clear branches: connection and configuration (including client-specific quirks and permission dialogs), workflow patterns for building, testing, and previewing through MCP tools, and a detailed API reference for all 20 exposed tools. The routing logic is unusually thorough, with explicit conflict resolution against other Apple development skills and a decision tree that keeps you from reaching for xcodebuild when MCP tools would give you richer IDE state. If you're wiring up any MCP client to Xcode or trying to understand why BuildProject isn't behaving, this is the right entry point.
- skills.sh installs
- 1.5K
- GitHub stars
- 1.3K
- last updated
- Aug 21, 2026
Install
$ npx -y skills add charleswiltgen/axiom --skill axiom-xcode-mcp --agent claude-codeInstalls into .claude/skills of the current project.
Files
Xcode MCP
You MUST use this skill for ANY Xcode MCP interaction — setup, tool usage, workflow patterns, or troubleshooting.
Bundled tools on Claude Code: if command -v <tool> finds nothing (hooks off or --bare), use <plugin-root>/tools/<tool> in place of the bare name; <plugin-root> is two levels above this skill's Base directory for this skill: path.
Xcode ships an MCP server exposing IDE tools to external AI clients. xcrun mcpbridge is the stdio transport clients register, available since Xcode 26.3. Xcode 27 adds an explicit "Allow External Agents to Use Xcode Tools" setting, the run-agent launch path, an agent-extension model (custom MCP servers, skills, plug-ins), and a headless server. This skill suite covers setup, tool reference, workflow patterns, and troubleshooting.
On Xcode 26.x, mcpbridge requires a running Xcode with a project open. If that's a liability, the device/simulator half of these operations has a fully Xcode-independent CLI path: devicectl + simctl + Axiom's xcui/xclog/xcsym/xcprof. See axiom-tools (skills/device-control-ref.md).
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- Repository
- github.com/charleswiltgen/axiom
- Categories
- AI & Agent Building, Debugging, Automation & Workflows, Mobile Development
- First seen
- Jun 3, 2026
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