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deepseek-harness/packages/attachment/attachment-local/README.zh.md
Yichen Jiang b599d1d0af Merge remote-tracking branch 'origin/master' into worktree/web-multimodal-image-input
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2026-07-27 12:27:30 +08:00

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@deepseek-ai/dsh-attachment-local

English | 中文

这是 @deepseek-ai/dsh-attachment 的私有本地实现。对象存放在 <DSH_HOME>/attachments/v1/objects/<sha256-prefix>/<sha256>,并通过不透明的 sha256: 标识符寻址。写入过程使用私有暂存目录、仅所有者可访问的文件、经过同步的临时文件、原子且排他的硬链接发布,并对发布目录执行同步(适用于 POSIX;Windows 依赖文件系统元数据日志),确保已报告的引用能够在崩溃后继续存在;读取过程会重新校验摘要、媒体签名、尺寸和已记录的元数据。字节和像素限制属于写入时的准入策略,因此后续收紧限制不会导致已经接纳的历史记录变得不可读。

DSH_HOME 按共享路径策略解析:显式配置、$DSH_HOME,最后是 ~/.dsh。会话日志只包含引用和经过校验的元数据,绝不包含这个宿主路径。

模型体验

该包通过重启和 fork 后对历史用户图片与结构化模型图片输出的持久回放间接影响模型。

KV 缓存影响

除发起请求的适配器所持有的图片块外,不产生其他影响。

已知限制与待完成工作

  • 对象会无限期保留;基于引用的垃圾回收尚未实现。
  • 本地后端假定宿主与提供方适配器共享同一个文件系统服务。
  • 动态 GIF 的元数据根据逻辑屏幕进行校验;逐帧解码策略由提供方持有。