{
    "description": "foldApiErrorEvents: three consecutive api_error system entries (retry 1, 2, 3) fold into a single agent-event carrying the LATEST api-error state; a following assistant text ends the run.",
    "expected": {
        "blocks": [
            {
                "createdAt": 1755000000000,
                "id": "msg-user-351",
                "kind": "user-text",
                "localId": null,
                "text": "Summarize the diff."
            },
            {
                "createdAt": 1755000008900,
                "event": {
                    "error": {
                        "message": "Overloaded",
                        "status": 529
                    },
                    "maxRetries": 10,
                    "retryAttempt": 3,
                    "type": "api-error"
                },
                "id": "msg-agent-354",
                "kind": "agent-event"
            },
            {
                "createdAt": 1755000015000,
                "id": "msg-agent-355:0",
                "kind": "agent-text",
                "localId": null,
                "text": "The diff renames the retry flag and threads it through the upload path."
            }
        ],
        "hasReadyEvent": false,
        "latestUsage": null,
        "visibleBlocks": [
            {
                "createdAt": 1755000000000,
                "id": "msg-user-351",
                "kind": "user-text",
                "localId": null,
                "text": "Summarize the diff."
            },
            {
                "createdAt": 1755000008900,
                "event": {
                    "error": {
                        "message": "Overloaded",
                        "status": 529
                    },
                    "maxRetries": 10,
                    "retryAttempt": 3,
                    "type": "api-error"
                },
                "id": "msg-agent-354",
                "kind": "agent-event"
            },
            {
                "createdAt": 1755000015000,
                "id": "msg-agent-355:0",
                "kind": "agent-text",
                "localId": null,
                "text": "The diff renames the retry flag and threads it through the upload path."
            }
        ]
    },
    "fixtureVersion": 1,
    "input": {
        "agentState": null,
        "messages": [
            {
                "content": {
                    "content": {
                        "text": "Summarize the diff.",
                        "type": "text"
                    },
                    "role": "user"
                },
                "createdAt": 1755000000000,
                "id": "msg-user-351",
                "localId": null,
                "seq": 1
            },
            {
                "content": {
                    "content": {
                        "data": {
                            "error": {
                                "message": "Overloaded",
                                "status": 529
                            },
                            "maxRetries": 10,
                            "retryAttempt": 1,
                            "subtype": "api_error",
                            "type": "system",
                            "uuid": "92d3f3a5-8a0b-4c1a-9e4d-f5a6b7c8d352"
                        },
                        "type": "output"
                    },
                    "role": "agent"
                },
                "createdAt": 1755000002000,
                "id": "msg-agent-352",
                "localId": null,
                "seq": 2
            },
            {
                "content": {
                    "content": {
                        "data": {
                            "error": {
                                "message": "Overloaded",
                                "status": 529
                            },
                            "maxRetries": 10,
                            "retryAttempt": 2,
                            "subtype": "api_error",
                            "type": "system",
                            "uuid": "a3e4a4b6-9b1c-4d2b-8f5e-a6b7c8d9e353"
                        },
                        "type": "output"
                    },
                    "role": "agent"
                },
                "createdAt": 1755000004500,
                "id": "msg-agent-353",
                "localId": null,
                "seq": 3
            },
            {
                "content": {
                    "content": {
                        "data": {
                            "error": {
                                "message": "Overloaded",
                                "status": 529
                            },
                            "maxRetries": 10,
                            "retryAttempt": 3,
                            "subtype": "api_error",
                            "type": "system",
                            "uuid": "b4f5b5c7-0c2d-4e3c-9a6f-b7c8d9e0f354"
                        },
                        "type": "output"
                    },
                    "role": "agent"
                },
                "createdAt": 1755000008900,
                "id": "msg-agent-354",
                "localId": null,
                "seq": 4
            },
            {
                "content": {
                    "content": {
                        "data": {
                            "message": {
                                "content": [
                                    {
                                        "text": "The diff renames the retry flag and threads it through the upload path.",
                                        "type": "text"
                                    }
                                ],
                                "model": "claude-opus-4-1-20250805",
                                "role": "assistant"
                            },
                            "parentUuid": null,
                            "type": "assistant",
                            "uuid": "c5a6c6d8-1d3e-4f4d-8b7a-c8d9e0f1a355"
                        },
                        "type": "output"
                    },
                    "role": "agent"
                },
                "createdAt": 1755000015000,
                "id": "msg-agent-355",
                "localId": null,
                "seq": 5
            }
        ],
        "options": {
            "hasMoreMessages": false
        }
    },
    "name": "event-api-error-folding"
}