dsh-csv-and-image-preview

DeepSeek Harness filters out images and tables embedded in markdown, so when you generate or edit images, SVGs, or CSVs inside a chat session, all you get back is a file path or raw text instead of the actual visual. dsh-csv-and-image-preview registers two host tools, preview_image and preview_csv, that render images via native elements and tables via native

elements. Pixel and cell data travel through presentationMeta straight to the browser, keeping the model context window completely clean.

The plugin enforces a preview-first workflow by default: after a script calls a preview tool it receives only a compact one-line summary, while the full rendering appears in the tool card. A real file write or mutation happens only after you explicitly confirm, and a rejection triggers a redo plus another preview pass. CSV tables ship with a sticky header, 320px capped scrolling, click-to-sort columns with numeric and pinyin-aware ordering, hover-to-expand for truncated cells, and a default 50-row delivery window to keep overhead low.

Built for developers who regularly handle image assets, SVG icons, or tabular data inside dsh sessions; the chat window becomes the preview canvas, eliminating the need to open a separate browser tab to verify every change.