Issue 15243 runtime reproduction
Commit: b5a226e49c52ecab4ddc2d678a7012d97e651a6a
Environment: Linux x64; Claude CLI 2.1.303; real web dev app; isolated worktree state seeded from a read-only snapshot.
Steps: create terminal Claude session in /tmp/triage-15243-project, import project via /welcome, send first follow-up, resend after failure.
Terminal creation: claude -p "This is an import reproduction for issue 15243. Reply with just the word ok." --model claude-opus-5-5 => ok
First follow-up: Reply with just the word resumed. => UI Provider turn failed; server orchestration-v2.claude-query-stream-failed (process exit code 1).
Direct CLI: claude -p --session-id c8ee58da-2983-47bd-9c82-c6e563544872 "Reply with just the word ok." => Error: Session ID c8ee58da-2983-47bd-9c82-c6e563544872 is already in use.
Resend: same prompt => resumed.
Selected provider-log fields (unrelated context and options omitted):
[
  {
    "model": "claude-opus-5-5",
    "cwd": "/tmp/triage-15243-project",
    "sessionId": "c8ee58da-2983-47bd-9c82-c6e563544872"
  },
  {
    "model": "claude-opus-5-5",
    "cwd": "/tmp/triage-15243-project",
    "resume": "c8ee58da-2983-47bd-9c82-c6e563544872"
  },
  {
    "type": "result",
    "subtype": "success",
    "is_error": false,
    "result": "resumed",
    "session_id": "c8ee58da-2983-47bd-9c82-c6e563544872"
  }
]