Introduction

DeepSeek Harness (DSH) uses a plugin-based architecture. Memory and state management for an Agent usually require manual maintenance. The dsh-journal-calendar plugin is designed to solve this problem. It allows an Agent to record daily actions and plans as JSON files, displays them in a calendar view in the right sidebar of the Web interface, and provides a checkable todo list.

What is it

This is a client-side plugin maintained by crease123, released under the MIT license. It packages three features into one Bundle Row:
* Host service: Provides a journal Remote namespace under the $DSH_HOME/journal path.
* Tool: Provides the journal_record tool and a fixed Duty Prompt area.
* Browser side: A calendar card in the right sidebar, showing the monthly view and the TODO and MEMORY areas for the selected date.

Core Features

  1. File storage: Stores journal files by date in pure JSON format under the $DSH_HOME/journal directory.
  2. Tool invocation: Provides the journal_record tool, which supports recording kind (such as todo plans or memory memories), title, detail, tags, and other information.
  3. Calendar visualization: Draws a monthly calendar grid in the right sidebar and marks data for each day.
  4. Interactive tasks: The TODO items below the calendar support checkbox interaction, and the checked state is written back to the corresponding daily file in real time.
  5. Inline editing: Supports inline editing of the Duty Prompt (role prompt sentence) via a button in the interface. The text is saved to $DSH_HOME/journal/duty.md.
  6. Manual editing: Supports direct manual editing of JSON journal files.

Installation and Activation

The installation command is as follows. After installation, the package is resolved automatically and the Web interface is deployed:

dsh plugin --profile web add dsh-journal-calendar

After executing the installation command, reload the page to see the Calendar / Journal tab in the right sidebar.

If you need to pin the version:

dsh-journal-calendar@0.2.0

If you need to customize the journal storage directory, you can add a dir option to the configuration:

- id: journal
  name: dsh-journal-calendar
  config:
    dir: /absolute/path/to/journal

Typical Usage

  • Agent usage: While working, an Agent invokes the journal_record tool to record tasks or memories. If the same id is recorded repeatedly, the tool returns the stored entry rather than adding a duplicate.
  • Manual maintenance: Journal files are located at $DSH_HOME/journal/<YYYY-MM-DD>.json. An example file structure is shown below:
{
  "version": 1,
  "date": "2026-09-30",
  "entries": [
    {
      "id": "…",
      "kind": "todo",
      "time": "20:00",
      "title": "跑 2 公里",
      "done": false
    }
  ]
}

Notes

  • Dependency environment: The dsh plugin command actually invokes pnpm, so pnpm must be installed on the target machine.
  • Build authorization: If installing from Git repository source (git+https://github.com/crease123/dsh-journal-calendar), the project will be built locally. You need to add an allowBuilds configuration in the profile’s pnpm-workspace.yaml and authorize it.
  • File format: Stored JSON files must remain valid. Malformed formats cause hard errors instead of automatic repair.
  • Process restart: If Typert Artifacts are regenerated, you must restart the DSH Host to load the new definitions.
  • Node version: The verified Node versions are 22.19.0 and 26.4.0; versions 24 and 25 are unverified.

Summary

dsh-journal-calendar provides DSH Agents with structured daily recording capabilities through standardized JSON files and a visual calendar. The files are user-owned and support manual editing, making this plugin suitable for developers who need long-term tracking of Agent behavior and plans.

  • Plugin directory: https://www.skillhub.cn/plugins/crease123/dsh-journal-calendar
  • Source code address: https://github.com/crease123/dsh-journal-calendar