/ultrareview crashes during Find phase before producing findings

Summary

Running /ultrareview <PR#> crashes during the Find phase after Setup completes successfully. No findings are produced.

Reproduction

• Command: /ultrareview 76 (targeting hugo-events/quriobot-api#76)
• Session ID: session_01BrrdweQoJeJkzfmmHFY3AR
• Tracking URL: https://claude.ai/code/session_01BrrdweQoJeJkzfmmHFY3AR

Observed behavior

• Setup: ✅ completed
• Find: ❌ failed
• Verify / Dedupe: not reached

Output returned to the CLI:

{"error":"Review crashed before producing findings. See session logs for details."}

Session UI showed only two heartbeats (17:02:43, 17:02:53) before the crash, then the <remote-review> error envelope above.

Expected behavior

Either findings are produced, or a clean "no findings" report is returned. The generic crash message doesn't surface enough information to act on from the client side — the actual cause is only in the server-side session logs.

Environment

• Claude Code CLI
• Model: Claude Opus 4.7 (1M context)
• Platform: darwin (macOS 24.6.0)
• Date: 2026-05-27

Ask

1. Investigate the session log for session_01BrrdweQoJeJkzfmmHFY3AR to identify the root cause.
2. Consider surfacing a more actionable error message in the CLI / UI when the Find phase crashes (e.g., distinguish transient infra failures from input/PR-specific issues so users know whether to retry).