curl -X POST \
  "http://localhost:8000/api/v2/agents/my-agent/memories/b7c3cf31-e537-49f1-abc4-c50ac6adeac5/expire" \
  -H "X-Session-Token: your_session_token" \
  -H "Content-Type: application/json" \
  -d '{"reason": "superseded-by-rewrite"}'

{
  "agent_id": "my-agent",
  "session_id": "sess_cf824a95d305",
  "memory_id": "b7c3cf31-e537-49f1-abc4-c50ac6adeac5",
  "status": "expired",
  "expired_at": "2026-08-18T19:56:29.873259+00:00",
  "expired_by": "superseded-by-rewrite"
}

{
  "detail": "Memory 'b7c3cf31-e537-49f1-abc4-c50ac6adeac5' was not found."
}

{
  "detail": "Missing session token. Use X-Session-Token header."
}