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Update agentic-rag.mdx: rewrite_question Node: Role and Content based… #1334

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Update agentic-rag.mdx: rewrite_question Node: Role and Content based…
SrijanShovit225 Nov 7, 2025
758a35e
Merge branch 'main' into patch-1
SrijanShovit225 Nov 8, 2025
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6 changes: 4 additions & 2 deletions src/oss/langgraph/agentic-rag.mdx
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Original file line number Diff line number Diff line change
Expand Up @@ -523,6 +523,8 @@ Note that the components will operate on the [`MessagesState`](/oss/langgraph/gr
:::python
1. Build the `rewrite_question` node. The retriever tool can return potentially irrelevant documents, which indicates a need to improve the original user question. To do so, we will call the `rewrite_question` node:
```python
from langchain.messages import HumanMessage

REWRITE_PROMPT = (
"Look at the input and try to reason about the underlying semantic intent / meaning.\n"
"Here is the initial question:"
Expand All @@ -539,7 +541,7 @@ Note that the components will operate on the [`MessagesState`](/oss/langgraph/gr
question = messages[0].content
prompt = REWRITE_PROMPT.format(question=question)
response = response_model.invoke([{"role": "user", "content": prompt}])
return {"messages": [{"role": "user", "content": response.content}]}
return {"messages": [HumanMessage(content=response.content)]}
```
2. Try it out:
```python
Expand Down Expand Up @@ -567,7 +569,7 @@ Note that the components will operate on the [`MessagesState`](/oss/langgraph/gr
}

response = rewrite_question(input)
print(response["messages"][-1]["content"])
print(response["messages"][-1].content)
```
**Output:**
```
Expand Down