deepseekplugins

DeepSeek Harness plugin

dsh-model-switch

DSH plugin: choose models for subagents and plan execution separately / 为子代理和计划执行选择更合适的模型

Workflow & Automation
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Source facts

Repository
lincong1987/dsh-model-switch
Latest update
Aug 21, 2026
Category
Workflow & Automation
GitHub stars
3
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/lincong1987/dsh-model-switch
Plugin: dsh-model-switch
Author: lincong1987

Check the source files

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

File explorer4 files
README.mdSource · read only
README language

dsh-model-switch

English | 中文

Use the right model for each stage of work in DeepSeek Harness.

The main conversation, subagents, and plan execution serve different purposes. dsh-model-switch lets each of them use a suitable model without changing the normal DSH workflow.

Why use it

  • Match models to tasks — keep your preferred model in the main conversation and use another model for subagents or plan execution.
  • Avoid repeated switching — save defaults once instead of changing models before every task.
  • Confirm before execution — review or change the model directly in the plan approval panel.
  • See what subagents use — display the model, context window, and reasoning effort, such as GPT-5.6 Sol 1M Max.
  • Keep the main model unchanged — after plan execution, DSH restores the previous main-session model.

Preview

Configure model defaults

<img src="docs/settings.png" alt="Model switch settings" width="720" />

Choose the model for plan execution

<table> <tr> <td width="50%"><img src="docs/plan.png" alt="Plan awaiting review" /></td> <td width="50%"><img src="docs/plan-exec.png" alt="Plan execution model" /></td> </tr> </table>

See the model used by subagents

<table> <tr> <td width="50%"><img src="docs/subagent.png" alt="Subagent model overview" /></td> <td width="50%"><img src="docs/subagent-detail.png" alt="Subagent model details" /></td> </tr> </table>

Install

Use the GitHub spec. This plugin is not published as an npm package, so do not use @lincong1987/dsh-model-switch.

dsh plugin --profile web add github:lincong1987/dsh-model-switch

Replace web with the profile DSH is actually running. DeepSeek Harness Desktop typically uses desktop.

Restart DSH after installation.

Update DSH

This plugin requires DeepSeek Harness 0.1.0-rc.8 or later. DSH has no dsh update command — install the version you want the same way you originally installed it.

1. Check the installed version and what npm currently publishes:

dsh --version
npm view @deepseek-ai/dsh dist-tags

latest can lag behind a pre-release. As of this writing, latest is 0.1.0-rc.7 and next is 0.1.0-rc.8. Pin the version by name (@0.1.0-rc.8 or @next); @latest alone will not pick up rc.8.

2. npx (Web):

npx --yes @deepseek-ai/dsh@0.1.0-rc.8 web

3. Global npm install:

npm install -g @deepseek-ai/dsh@0.1.0-rc.8
dsh --version

Then restart dsh web. DSH needs Node.js ^22.19.0 or >=24.

4. Desktop: Fully Exit from the tray, then use Check for Updates in the app (or install a newer Desktop build). Desktop ships its own packaged dsh; updating npm or npx does not replace that copy. After Desktop finishes updating, restart it.

DSH is still a developer preview and may change on-disk formats between releases. Back up ~/.dsh (Windows: %USERPROFILE%\.dsh) before jumping versions.

After DSH is on a compatible version, reinstall this plugin as described below.

Reinstall / after a DSH update

Reinstall the plugin when this repository has a new release, or after you upgrade DeepSeek Harness. The plugin tracks a specific DSH version (currently 0.1.0-rc.8 or later), so a host upgrade should be followed by a plugin reinstall.

1. Update DSH first (see [Update DSH](#update-dsh); skip this step if only the plugin changed). 2. Reinstall with --force so DSH refreshes the GitHub source:

dsh plugin --profile web add --force github:lincong1987/dsh-model-switch

3. Restart DSH.

On Desktop, run one plugin add at a time. Fully Exit from the tray (closing the window is not enough), wait until Desktop finishes starting, then reinstall, then Exit and reopen again. If install fails with another plugin install recovery transaction is pending, quit Desktop, wait, and retry once. If it is still pending, quit Desktop, delete %APPDATA%\DSH Desktop\plugin-install-recovery, reopen Desktop, then run a single add --force.

To bypass the Desktop wrapper, run the matching DSH CLI in a normal terminal:

npx --yes @deepseek-ai/dsh@0.1.0-rc.8 plugin --profile desktop add --force github:lincong1987/dsh-model-switch

Use

1. Open Settings → Model switch. 2. Configure the Subagent model and Plan execution model: - Follow main model uses the current conversation model. - Custom lets you choose a model and reasoning effort. 3. When reviewing a plan, confirm or change the execution model before selecting Approve.

The model selected in the plan review panel takes priority over the saved plan-execution setting.

Compatibility

Requires DeepSeek Harness 0.1.0-rc.8 or later. Settings are stored in the host settings document through the plugin's registered model-switch namespace.

Subagent model switching applies to in-process subagents such as spawn and fork. External-process agents may manage their models independently.

Community

<img src="docs/wechat.jpg" alt="WeChat" width="160" />

Links

License

MIT

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