{
    "description": "Codex family: context_compacted maps to an agent-event of type compact with trigger and preTokens (accepting the snake_case pre_tokens wire key).",
    "expected": {
        "blocks": [
            {
                "createdAt": 1755000000000,
                "id": "msg-user-511",
                "kind": "user-text",
                "localId": null,
                "text": "Carry on."
            },
            {
                "createdAt": 1755000003100,
                "event": {
                    "preTokens": 186211,
                    "trigger": "auto",
                    "type": "compact"
                },
                "id": "msg-codex-512",
                "kind": "agent-event"
            }
        ],
        "hasReadyEvent": false,
        "latestUsage": null,
        "visibleBlocks": [
            {
                "createdAt": 1755000000000,
                "id": "msg-user-511",
                "kind": "user-text",
                "localId": null,
                "text": "Carry on."
            },
            {
                "createdAt": 1755000003100,
                "event": {
                    "preTokens": 186211,
                    "trigger": "auto",
                    "type": "compact"
                },
                "id": "msg-codex-512",
                "kind": "agent-event"
            }
        ]
    },
    "fixtureVersion": 1,
    "input": {
        "agentState": null,
        "messages": [
            {
                "content": {
                    "content": {
                        "text": "Carry on.",
                        "type": "text"
                    },
                    "role": "user"
                },
                "createdAt": 1755000000000,
                "id": "msg-user-511",
                "localId": null,
                "seq": 1
            },
            {
                "content": {
                    "content": {
                        "data": {
                            "pre_tokens": 186211,
                            "thread_id": "thread-42",
                            "trigger": "auto",
                            "type": "context_compacted"
                        },
                        "type": "codex"
                    },
                    "role": "agent"
                },
                "createdAt": 1755000003100,
                "id": "msg-codex-512",
                "localId": null,
                "seq": 2
            }
        ],
        "options": {
            "hasMoreMessages": false
        }
    },
    "name": "codex-context-compacted"
}