After upgrading from Xcode 26.5 to Xcode 26.6, I noticed that the built-in Agents section has changed. My environment
Xcode 26.6 (Build 17F113)
macOS 26.5.2 (Build 25F84)
Installed from the Mac App Store Signed in with my Apple ID in Xcode Apple Intelligence is enabled Chat providers work normally (ChatGPT, Claude, Google) What I expected According to Apple's documentation, the Intelligence settings should display built-in Agents such as: Claude Agent Codex with a Get button to install them. Reference: https://developer.apple.com/documentation/xcode/setting-up-coding-intelligence What actually happens After upgrading to Xcode 26.6, the Agents section only contains: Allow external agents to use Xcode tools Add an Agent... The built-in Agents (Claude Agent and Codex) are completely missing.
The Chat section still works normally.
Comparison
On the same Mac:
Xcode 26.5 shows:
Claude Agent
Codex
Get buttons
Xcode 26.6 only shows MCP ("Allow external agents to use Xcode tools") and "Add an Agent...", with no built-in Agents. Things I have already tried
Deleted all Xcode preferences
Deleted ~/Library/Developer
Deleted ~/Library/Application Support/Xcode
Reinstalled Xcode 26.6
Signed out/in of Apple ID Verified Intelligence is enabled No change. Additional information The following directory is never created:
~/Library/Developer/Xcode/CodingAssistant Searching Xcode preferences also shows no Agent-related configuration.
Question Is this an intentional change in Xcode 26.6, or is this a bug? If it's expected, how can I restore the built-in Agent catalog (Claude Agent / Codex)?
Thanks!