DeepSeek Harness plugin

dsh-plantuml

DSH web plugin: render PlantUML fenced code blocks in conversation messages as SVG diagrams.

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Source facts

Repository
qschen86/dsh-plantuml
Latest update
Aug 17, 2026
Category
UI Enhancements
GitHub stars
1
Format
plugin
Catalog evidence
Upstream dsh.bundle evidence
Evidence path
package.json#dsh.bundle
Checked against
0.1.0-rc.8
Upstream check date
2026-08-20

This evidence comes from the upstream catalog. This site has not installed, run, or security-reviewed the plugin.

Install

Start with a prompt that asks an agent to review the GitHub repository and source. Switch to the command if you want to install it yourself.

Copy this prompt into DSH, Codex, or another agent and ask it to review the GitHub repository and source first.

Do not install or run any commands yet. Read this plugin's GitHub repository, README, and relevant source code. Then answer the questions below clearly and directly so I can decide whether it fits my needs:

1. What is this plugin, and what problem does it solve?
2. Who is it for, and what are its typical use cases?
3. How is it used after installation? Include one minimal example.
4. What known limitations or privacy, security, compatibility, or maintenance risks does it have?
5. Give a clear recommendation: recommend, conditionally recommend, or do not recommend, with reasons.

Distinguish statements documented by the repository, inferences from source code, and unknowns. If evidence is insufficient, say so explicitly. Do not guess or simply repeat the README.

GitHub: https://github.com/qschen86/dsh-plantuml
Plugin: dsh-plantuml
Author: qschen86

Check the source files

Read the README and other files from this plugin directory before installing.

File explorer3 files
README.mdSource · read only

dsh-plantuml

DeepSeek Harness Web 插件:在会话消息中直接渲染 PlantUML 图表。

功能

  • 识别助手消息里的 ``` `plantuml `` / `` `puml ``` 围栏代码块
  • 自动通过 PlantUML 服务(默认公共服务器,可配置)渲染为 SVG
  • 支持架构图、流程图、时序图、用例图、类图等 PlantUML 支持的图形
  • 渲染失败时显示错误信息,不阻塞消息中的其他 Markdown 内容

安装

dsh plugin --profile web add dsh-plantuml
# 或使用 GitHub Release tarball:
# dsh plugin --profile web add https://github.com/qschen86/dsh-plantuml/releases/download/v0.1.0/dsh-plantuml-0.1.0.tgz
dsh --profile web --dump-config   # 验证条目已加入 bundles
# 重启 dsh web(host 半生效),刷新页面(client 半生效)

卸载

dsh plugin --profile web remove dsh-plantuml

> 注意:本插件使用 assistant-step-5 优先级。若同时安装了 dsh-llm-codex-app-server 的浏览器渲染器(优先级 -10),后者会优先接管助手消息;此时如需 PlantUML 渲染,建议将两套渲染合并或二选一。

配置

通过环境变量配置:

变量默认值说明
DSH_PLANTUML_SERVERhttps://www.plantuml.com/plantumlPlantUML 服务地址,例如自建 http://127.0.0.1:8080/plantuml
DSH_PLANTUML_COMMAND如果设置为本机 plantuml 命令(或可执行文件路径),则优先用本机命令渲染,不访问网络
DSH_PLANTUML_TIMEOUT_MS15000远程渲染超时(毫秒)
DSH_PLANTUML_MAX_SOURCE1048576单个 PlantUML 源码最大字节数

> 环境变量需对 dsh web 进程可见:若服务由 launchd 监督进程托管(如 > com.dsh.web-supervisor),把变量加进其 plist 的 EnvironmentVariables > (或 DSH_START_CMD 前缀),仅写进 ~/.zshrc 不会生效。

使用

模型在回复中输出:

@startuml Alice -> Bob: 你好 @enduml

插件会自动把它替换成渲染后的 SVG 图片。

实现说明

  • 宿主端 lib/index.js 提供 POST /plugin/plantuml 渲染接口;默认使用 PlantUML 官方编码(deflate + 自定义 base64)请求远程服务,也可调用本机 plantuml 命令。
  • 浏览器端 lib/client.js 注册 conversation.chat.nodeassistant-step 低优先级渲染器,在保留原有 Markdown / 推理 / 图片 / JSON 展示的同时,解析 PlantUML 围栏并异步加载图片。