deepseekplugins

DeepSeek Harness plugin

dsh-computer-use-threebod

Native Windows Computer Use tools for DeepSeek Harness.

Tools & Capabilities
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Source facts

Repository
ThreeBody6666/dsh-computer-use
Latest update
Aug 22, 2026
Category
Tools & Capabilities
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/ThreeBody6666/dsh-computer-use
Plugin: dsh-computer-use-threebod
Author: ThreeBody6666

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 Computer Use

中文

Native Windows Computer Use bundle for DeepSeek Harness. It uses the DSH Cordis tool registry directly and does not use MCP. Verified against DSH 0.1.1-rc.1.

Capabilities

  • computer_screenshot: captures the virtual desktop and returns a DSH image attachment.
  • computer_click, computer_drag, computer_scroll: pointer control using bounded virtual-desktop coordinates.
  • computer_type, computer_keypress: Unicode text and supported keyboard shortcuts sent to the active control.
  • computer_wait: allows an application to settle before the next observation.
  • computer_observe: captures the desktop and sends it to a user-selected vision model when the active DSH model cannot inspect images.

Every Computer Use tool asks through DSH's native approval service by default. CTRL+ALT+DELETE, empty text, unsupported keys, invalid durations, and coordinates outside the virtual desktop are rejected before input is sent.

Permissions and approvals

> **If a computer_* tool reports the user rejected tool "computer_screenshot" without any prompt:** this usually is not a real user refusal. When the session runs under approval: never (for example a danger-full-access preset), approval-required tools are fail-closed and auto-rejected, and the error text is misleading. Type /permission workspace-write (approval = ask) in the conversation input box to restore the approval prompts.

Two independent gates guard every computer action:

  • Master switch (since 0.2.2): the Computer Use: On/Off pill on the right side of the composer toggles the computer-use-control setting. When disabled, all computer_* tools are denied with an explicit reason.
  • Approval gate: tools/pre-execute returns an ask request for every computer_* call while requireApproval is true (the bundled cordis.patch.yml keeps it enabled). Turn it off only if you accept running computer actions without confirmation; changing it requires a DSH restart.

Vision model settings

After installing and restarting DSH, open Settings > Plugins > Plugin configuration, then expand Computer Use Vision. Enter an OpenAI-compatible HTTPS base URL, API key, vision-capable model name, and response-token limit, then enable the model. The API key is stored in DSH's settings secret field and is not included in Cordis configuration or tool responses.

FieldRequirement
EnabledTurn this on only after the endpoint, key, and model are configured.
Base URLAn HTTPS OpenAI-compatible API base URL, such as https://api.example.com/v1.
API KeyStored as a write-only DSH secret. Leaving the field blank during an update preserves the existing key.
ModelThe vision-capable model identifier accepted by the provider.
Max TokensAn integer from 64 to 8192; the default is 1000.

computer_observe sends the current screenshot only to this configured endpoint. Keep it disabled unless you understand where the visual data will be processed.

![Computer Use Vision settings card](assets/computer-use-vision-settings.png)

Why this appears in the settings UI

DSH only exposes selected settings namespaces to its browser configuration API. The plugin registers the vision configuration as a configurable model provider, so the native Web UI can safely read and save it. Computer-control tools are loaded separately, preventing their runtime dependencies from delaying the settings card.

Install

From npm (recommended). --profile is required — it selects which DSH profile gets the plugin:

dsh plugin --profile web add @crazy_th/dsh-computer-use

Replace web with the profile you actually use (tui, headless, ...).

From source (development):

pnpm install
pnpm run build
dsh plugin --profile web add link:<path-to-this-checkout>

Restart DSH after installation. To inspect the active layer:

dsh --profile web --dump-config

The bundled cordis.patch.yml enables approval and scales screenshots to at most 1600x1200. Override those values in the profile's cordis.patch.yml when needed.

Verify the installation

The composed configuration must contain both computer-use-settings and computer-use:

dsh --profile web --dump-config

For the Web profile, start DSH on the default local port and open the page locally:

dsh web --port 3082
# Open http://127.0.0.1:3082, then Settings > Plugins > Plugin configuration.

If the card is absent, restart DSH after rebuilding or reinstalling the plugin. Do not use a cached page from a different DSH instance or profile.

Development

pnpm test
pnpm run typecheck
pnpm run build

The automation driver is Windows-only. It uses user32.dll for input and System.Drawing for screen capture; it does not install a global hook or run a background process.

License

MIT

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