[BUG] "Could not load connectors directory" after upgrading to macOS 26.5

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

After upgrading to macOS 26.5, the Cowork desktop app displays "Could not load connectors directory" on every launch. The app was working correctly prior to the macOS upgrade with no configuration changes.

Troubleshooting already attempted:

• Quit and relaunched the app — error persists
• Added Claude to Full Disk Access in System Settings → Privacy & Security — error persists
• Added Claude to App Management in System Settings → Privacy & Security — error persists
• Confirmed ~/.claude directory is writable (test -w ~/.claude returns writable)
• Confirmed no com.apple.quarantine flag on the app binary (only com.apple.macl and com.apple.provenance present)
• No app update available at time of writing
• Claude Code CLI not installed (claude doctor returns command not found)

This appears related to #42591, which was closed as a duplicate. This is a regression specific to macOS 26 — the app functioned correctly on the previous macOS version without requiring Full Disk Access or App Management permissions.

What Should Happen?

The app should load normally and connectors should be available, as they were prior to the macOS 26.5 upgrade.

Error Messages/Logs

Error message displayed on launch: "Could not load connectors directory"

xattr output from Claude.app:
com.apple.macl:
com.apple.provenance:

Steps to Reproduce

1. Upgrade macOS to 26.5
2. Launch the Claude / Cowork desktop app
3. Error appears immediately: "Could not load connectors directory"

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

Not available (Claude Code CLI not installed)

Claude Code Version

Not available (Claude Code CLI not installed)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

The app functioned correctly before the macOS 26.5 upgrade without requiring Full Disk Access or App Management permissions. Those permissions were added during troubleshooting but did not resolve the issue. This appears to be a macOS 26 compatibility regression requiring an app update.