{
    "description": "Codex family: reasoning payload becomes an agent-reasoning block keyed by its stream id (data.id).",
    "expected": {
        "blocks": [
            {
                "createdAt": 1755000000000,
                "id": "rs_0af3d219",
                "kind": "agent-reasoning",
                "localId": null,
                "text": "**Weighing pagination approaches**\n\nThe epoch guard only fires when the server resets, so the client must drop its window on mismatch."
            }
        ],
        "hasReadyEvent": false,
        "latestUsage": null,
        "visibleBlocks": [
            {
                "createdAt": 1755000000000,
                "id": "rs_0af3d219",
                "kind": "agent-reasoning",
                "localId": null,
                "text": "**Weighing pagination approaches**\n\nThe epoch guard only fires when the server resets, so the client must drop its window on mismatch."
            }
        ]
    },
    "fixtureVersion": 1,
    "input": {
        "agentState": null,
        "messages": [
            {
                "content": {
                    "content": {
                        "data": {
                            "id": "rs_0af3d219",
                            "message": "**Weighing pagination approaches**\n\nThe epoch guard only fires when the server resets, so the client must drop its window on mismatch.",
                            "type": "reasoning"
                        },
                        "type": "codex"
                    },
                    "role": "agent"
                },
                "createdAt": 1755000000000,
                "id": "msg-codex-061",
                "localId": null,
                "seq": 1
            }
        ],
        "options": {
            "hasMoreMessages": false
        }
    },
    "name": "codex-reasoning"
}