## File record

Files response shape

```json
{
  "session_id": "hsess...",
  "count": 1,
  "files": [
    {
      "path": "index.html",
      "bytes": 12117,
      "media_type": "text/html",
      "file_id": "cfile_...",
      "download_url": "https://api.harnessrouter.ai/v1/containers/hsess.../files/cfile.../content"
    }
  ]
}
```

## Rendering

- Use `media_type` and trusted artifact metadata to choose a renderer.
- Fetch `download_url` server-side with the Bearer key, then relay bytes through your product.
- Use sandboxed previews for generated HTML and code.
- For Office files, the same content URL has a server-converted PDF preview at `/pdf`.

**Open standard**

The file records on this page — path, bytes, media_type, file_id, and a container-scoped download URL with an Office /pdf rendition — implement the artifact retrieval surface UHP's Files chapter standardizes. See [the Files chapter of the Unified Harness Protocol](https://unifiedharnessprotocol.org/spec/files).