DeepSeek Harness Visualization Plugin dsh-widget: Rendering Model Output Directly as Inline Cards
dsh-widget is a DeepSeek Harness (DSH) plugin designed to render model-generated SVG or HTML snippets directly as visual cards in the conversation, solving the challenge of visualizing model outputs. It supports sandbox isolation (scripts disabled and network access unavailable by default), self-contained HTML rendering, and multiple chart types. Installation is simple and requires no build steps: simply install it via the command line and restart `dsh web`. The model can display content by passing an HTML snippet to the `render_widget` tool. The plugin has size limits (soft budget: 8 KB; hard limit: 512 KB) and uses a strict default security policy, making it suitable for displaying complex structures such as flowcharts and layout drafts in conversation flows without additional visualization libraries.
Read Moredeepseek-harness-flowchart: Add a themed Mermaid flowchart renderer for DeepSeek Harness
# Introduction In DeepSeek Harness (DSH), there are two common approaches to enabling an agent to "draw a flowchart": the first is having the model output Mermaid source code, which the user then pastes into a renderer to generate the image; the second is writing a script tool that directly manipulates the file system, allowing the model to generate and save files locally. The former breaks the flow outside of the conversation, while the latter bypasses DSH's file writing approval and sandbox policies. deepseek-harness-flowchart takes a different approach: it mounts a `render_flowchart` tool for DSH to render Mermaid flowcharts locally into themed, self-contained SVGs, with file writing delegated back to Harness.
Read Moredsh-mermaid: Rendering Mermaid Fenced Code Blocks as SVG Diagrams in DSH Web Sessions
dsh-mermaid is a DSH client plugin maintained by AKS1st, which renders inline `mermaid code blocks in web session messages into SVG diagrams. It employs a Host/Client dual-part architecture, with the mermaid runtime loaded on demand. Features include viewport-driven rendering, asynchronous queuing, light/dark theme following, fullscreen zoom-in, and visualization of rendering failures. Install via `dsh plugin --profile web add github:AKS1st/dsh-mermaid`, with `securityLevel` fixed to strict.
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