200 OK — session open
> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_01su2md4 89ms POST /ai/v1/search {} Idempotency-Key: Mr037yNjt_gg Send ▶> POST /ai/v1/session {"source": "bobw"}
< 200 OK req_01su2md4 89ms POST /ai/v1/search {} Idempotency-Key: Mr037yNjt_gg Send ▶