docs for playground studio integration

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Arjun Natarajan
2025-02-19 09:43:21 -08:00
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# Iterating on your graph in Studio
In LangGraph Studio you can iterate on the prompts used within your graph by utilizing the LangSmith Playground. To do so:
1. Open an existing thread or create a new one.
2. Within the thread log, any nodes that have made an LLM call will have a "View LLM Runs" button. Clicking this will open a popover with the LLM runs for that node.
3. Select the LLM run you want to edit. This will open the LangSmith Playground with the selected LLM run.
![Playground in Studio](../img/studio_playground.png)
From here you can edit the prompt, test different model configurations and re-run just this LLM call without having to re-run the entire graph. When you are happy with your changes, you can copy the updated prompt back into your graph.