CoreSpotlight donation failures cause repeated XPC reinitialization on macOS 27

[boom-10]

Environment

• DSH Desktop: 0.2.2-rc.1
• Bundle ID: com.deepseek.dsh
• macOS: 27.0.1 (26A434)
• Hardware: Apple silicon MacBook Pro, 16 GB
• Codex Desktop was also installed and running

Observed behavior

While DSH is open and a session is active, the unified log repeatedly shows CoreSpotlight donation failures followed by XPC reinitialization. During an approximately 15-minute DSH session, a 20-minute log query contained:

• 121 CSIndexErrorDomain messages
• 172 XPC_ERROR_CONNECTION_INTERRUPTED messages
• Failures occurring in repeated bursts

Representative lines:

[com.apple.corespotlight:index] Completed donation:
Error Domain=CSIndexErrorDomain Code=-1000 "Failed to request donation"
UserInfo={... NSCocoaErrorDomain Code=4099 ...}

[com.apple.xpc:connection] Re-initialization successful;
calling out to event handler with XPC_ERROR_CONNECTION_INTERRUPTED

At the same time, Spotlight was performing heavy index merge/compaction, and DSH's renderer/GPU helpers intermittently increased CPU usage substantially. I have not proven that the donation failures cause the renderer load, but the repeated XPC retries appear to amplify system indexing pressure.

Reproduction

1. Launch DSH 0.2.2-rc.1 on macOS 27.
2. Open and use a session long enough for incremental output/tool activity.
3. Query:
   log show --last 20m --style compact --predicate 'process == "DeepSeek Harness"'
4. Search for CSIndexErrorDomain, Failed to request donation, and XPC_ERROR_CONNECTION_INTERRUPTED.

Questions

• Does DSH intentionally donate session or user activities to CoreSpotlight, or is this induced by Electron/macOS?
• Should donation failures be deduplicated and retried with bounded exponential backoff instead of repeatedly reinitializing the XPC connection?
• Can macOS CoreSpotlight integration be made optional or disabled while this platform issue is investigated?

I could not find direct CoreSpotlight, CSSearchable, or NSUserActivity calls in the DSH source tree or installed app strings, so I would appreciate help identifying the exact origin.