dsh-file-upload

The DeepSeek Harness web composer has never offered a lightweight way to feed local files into a session. Until now, handing a CSV, a config file, or a script to the agent meant juggling terminal tabs and typing paths by hand. dsh-file-upload drops an upload button into the composer toolbar: select several files in one pass, or simply paste whatever is on your clipboard with Cmd+V / Ctrl+V. Standard images (PNG, JPG, WebP, GIF) still flow through Harness' native attachment pipeline; every other file type is handled by this plugin, with a 10 MiB per-file ceiling.

Files land in the .dsh-uploads/ directory under the current Session workspace. Names are collision-safe and will never silently overwrite existing files; path separators, stray whitespace, and @ characters are stripped from stored names; symlinked directories and byte-count mismatches are rejected outright. Once a file is in place the composer automatically appends the @.dsh-uploads/ prefix so dsh-at-file and the agent's filesystem tools can reference it immediately. The entire transfer stays on the local DSH loopback connection - nothing is sent to a cloud service, and the files remain entirely on your machine.

If your workflow revolves around feeding local documents, datasets, or configuration files to an agent for analysis or code generation, and you prefer to keep everything local with zero extra network overhead, this plugin fills the gap that was always missing from the toolbar. After installing, restart the dsh web process and the new button will be waiting. Add .dsh-uploads/ to your project's .gitignore so temporary uploads never sneak into version control.