Xcode Integration Guide

Overview

Xcode is the primary Apple-platform IDE. AI assistance commonly appears through Copilot for Xcode or external agents. Cup’n’String governs provider/API traffic, project secrets, signing materials, and local service access.

Support level

Auto-Discovered with Copilot/MCP-aware governance where applicable

What Cup’n’String detects

• Xcode processes
• Copilot extension activity where observable
• Build/signing workflows where network access is involved

What it governs

• Provider/API egress
• Apple signing credential exposure patterns
• Local service access
• Agent or extension network activity

Recommended policies

• Protect signing materials and credentials
• Restrict unknown AI endpoints
• Audit AI extension activity

Setup outline

1. Ensure the Cup’n’String macOS packet filter (pf) rules are loaded.
2. Launch Xcode.
3. Configure the agent to shield provisioning profile paths and local developer keys.

Verification

Open a project with a Copilot extension configured and check the Cup’n’String log output to ensure no unauthorized outbound endpoints are called.

Troubleshooting

If build actions fail, check if the pf rules are too restrictive on local network lookup services.

Known limitations

Native tool-call governance depends on extension behavior and OS-level visibility.