dsh-chatfile

When chatting with an agent in DeepSeek Harness WebUI, you often need to hand over a PDF, a data file, or a code snippet for the agent to read and analyze. The built-in upload flow only covers images, so non-image files either require you to type paths by hand or get skipped entirely, breaking the context. dsh-chatfile closes that gap: drop any file onto the chat area (anywhere on the page) and it lands in the current session's uploads/ directory, with a path reference like [Uploaded File] uploads/report.pdf (name, 2.3 MB) auto-inserted into the input box so the agent can read it with standard file tools.

A new 📎 button on the input toolbar supports multi-select, and a status bar above the input tracks each file's progress—uploading, success, or failed. On success you can download the original or remove the reference; on failure the draft rolls back cleanly. Pure image drops still follow the built-in preview and attachment flow, fully isolated at the event-capture level so the two never conflict. Download URLs use unguessable random token routes; filename, size, and type are all validated on the Host side, with a 50 MB per-file cap.

If your workflow regularly involves feeding documents, code, or datasets to the agent for analysis, this plugin removes the friction of manual path entry and lets files enter the conversation context as naturally as a message.