Fields
| Field | Type | Required | Description | Example |
|---|---|---|---|---|
Bytes | int64 | ✅ | File size in bytes. | 123 |
ContainerID | string | ✅ | The container the file belongs to — echoes the container_id path parameter (OpenAI field name). | sess_abc123 |
CreatedAt | int64 | ✅ | Unix timestamp (seconds) when the file was last synced. | 1755640000 |
ID | string | ✅ | Container file id: cfile_ + base64url of the file path. | cfile_b3V0L3JlcG9ydC5jc3Y |
Object | components.ContainerFileObject | ✅ | N/A | container.file |
Path | string | ✅ | Container-relative file path. | out/report.csv |
Source | components.ContainerFileSource | ✅ | Container files are always produced by the assistant sandbox. | assistant |