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Visualizer Widget — DSH Plugin for DeepSeek Harness
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dsh-visualizer-widget

Visualizer Widget

Ports inline session visualization capabilities into DeepSeek Harness: render_visual renders SVG/HTML source code as inline cards in the session stream, and get_visualizer_spec provides a unified rendering specification.

The plugin will be installed here. Keep web if you are unsure.

npx -y @deepseek-ai/dsh plugin --profile web add github:lovezi0/dsh-visualizer-widget#57f1e3063c513c2a97ffddd01e70c34d517709c6
READMECompatibilityVersions

Compatibility and provenance

Visualizer Widget is published as dsh-visualizer-widget and currently resolves to version 0.1.0. The Hub verifies its manifest and preserves the exact installation source for reproducible installs.

DSH compatibility
*
Runtime surfaces
web
Release source
github
Registry updated
9/4/2026

Versions

0.1.0stable
9/4/2026

Related plugins

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Latest
0.1.0
DSH
*
HMR
Process restart
Tree shaking
Safe tree shaking not declared
Unpacked size
Unavailable
Files
Unavailable
Surface
web
License
MIT
Source
github
GitHub
★ 0
Weekly downloads
0
Last push
9/15/2026
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README

dsh-visualizer-widget

DeepSeek Harness 的会话流「内联可视化」插件：模型产出 SVG / HTML 源码后，交给浏览器渲染成一张可交互的内联卡片，源码只进卡片、不回灌模型上下文。

能做什么

插件注册两个工具：

工具作用
render_visual把 SVG / HTML 源码渲染成会话流内联卡片（预览/源码切换、高度档位、浅色/深色底、重跑、复制）
get_visualizer_spec按需返回统一渲染规范全文（viewBox 基准 680、字号/字重约束、9×7 色板、明暗配色、图类型路由、导出陷阱等）

卡片在 tool.call.toolview 槽位上按 render_visual 键接管该工具的调用行，源码经 iframe srcdoc 沙箱隔离渲染。

设计要点

  • 源码与模型上下文解耦：render_visual 的 output.render 只回一行摘要（格式 / 字符数 / 高度），完整源码只留在工具结果与卡片里，不进入模型上下文。
  • 渲染规范随包分发：get_visualizer_spec 返回的规范固化的内联可视化设计规范，生成源码时据此保持统一视觉。
  • 安全隔离：iframe 沙箱只给 allow-scripts allow-popups allow-forms，不带 allow-same-origin，卡片内脚本拿不到主页面 DOM / storage。

安装

# 本地目录
dsh plugin --profile web add .

# 或从 GitHub
dsh plugin --profile web add github:lovezi0/dsh-visualizer-widget

# 卸载
dsh plugin --profile web remove dsh-visualizer-widget`。

构建

npm run build

产物 lib/index.js（host 半）与 lib/client.js（client 半单文件 bundle）已随包提交，github: 安装拉到的源码自带 lib/，加载即用。

使用

让模型「画一个柱状图看板」「渲染这段 SVG 原型」时，模型会调用 render_visual，卡片直接出现在会话流里；生成复杂图表前可先调 get_visualizer_spec 核对规范。

版本历史

0.1.0 - 🔥会话流「内联可视化」插件