[Feature]: 多智能体协作文档处理问题

[oyx888]

多智能体处理文档时，session隔离状态下，读取不到用户上传到session目录下的文件，即使用url，subagent下载处理完毕，返回给父agent时也读不到，只能依靠提示词互相传文档url来解决这个问题，很麻烦，是否有更好的解决方法

[oss-maintainer]

Issue Evaluation

Category: enhancement | Status: Evaluated

With session isolation enabled, sub-agents cannot read files that the user uploaded into the parent session directory (and vice versa), even when a URL is passed; today the only workaround is shuttling document URLs between agents via prompts.

Feasibility: needs-discussion. The underlying question is how file/artifact visibility should be scoped across parent/sub-agent boundaries under session isolation — e.g. an explicit shared artifact store or a capability to grant a sub-agent read access to specific parent-session files.
Scope: memory/session state and sub-agent orchestration (agentscope-core, harness workspace).
Compatibility: any cross-session sharing must remain explicit and opt-in to preserve isolation guarantees.

Could you describe the exact topology (which agent uploads, which sub-agent needs the file, and how isolation is configured)? A concrete scenario will help narrow the design options.

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Automated evaluation by github-manager-bot

[oyx888]

Issue Evaluation  问题评估

Category: enhancement | Status: Evaluated类别: enhancement | 状态: 已评估

With session isolation enabled, sub-agents cannot read files that the user uploaded into the parent session directory (and vice versa), even when a URL is passed; today the only workaround is shuttling document URLs between agents via prompts.在启用了会话隔离功能的情况下，子代理无法读取用户上传到父会话目录中的文件（反之亦然），即使传递了 URL 也是如此。目前唯一的解决办法就是通过提示来在代理之间传输文档的 URL。

Feasibility: needs-discussion. The underlying question is how file/artifact visibility should be scoped across parent/sub-agent boundaries under session isolation — e.g. an explicit shared artifact store or a capability to grant a sub-agent read access to specific parent-session files.可行性：需要进一步讨论。核心问题在于，在会话隔离的情况下，如何确定文件/工件的可见性应涵盖父代理与子代理之间的边界——例如，是否需要建立一个明确的共享工件存储机制，或者能否授予子代理对特定父会话文件的读取权限。 Scope: memory/session state and sub-agent orchestration (agentscope-core, harness workspace).范围：包括内存/会话状态以及子代理的协调工作（agentscope-core、harness 工作区）。 Compatibility: any cross-session sharing must remain explicit and opt-in to preserve isolation guarantees.兼容性：任何跨会话共享操作都必须是显式的，并且需要用户自愿参与，这样才能保证隔离性的保障。

Could you describe the exact topology (which agent uploads, which sub-agent needs the file, and how isolation is configured)? A concrete scenario will help narrow the design options.您可以描述一下具体的拓扑结构吗？也就是哪个代理负责上传文件，哪个子代理需要该文件，以及隔离配置是如何设置的？一个具体的场景将有助于缩小设计选项的范围。

Automated evaluation by github-manager-bot由 github-manager-bot 进行的自动化评估

首先用户聊天时，用户上传了文件，首先我们会把这个文件上传到文件服务上， 通过提示词拼接例：
帮我分析这份文档用户上传了附件url，需要先使用下载工具，如需要子智能体处理文档时发出指令应该是用户上传文件的完整url，处理完成的文档也需要要子智能体使用上传文件工具上传后返回完整的url：- http://127.0.0.1:9001/file/xxxxxxx
agent配置HarnessAgent.builder().workspace("./workspace") 本地文件系统配置.isolationScope(IsolationScope.SESSION)
提示词不这样写，就会出现一直循环在找文件的过程中，导致循环耗尽直接停止