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fix(docs): improve classify_intent reliability and draft logging #1721

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fix(docs): improve classify_intent reliability and draft logging #1721

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fix(docs): improve classify_intent reliability and draft logging
yanglikun Dec 3, 2025
05ab65a
Merge branch 'main' into patch-7
yanglikun Dec 5, 2025
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4 changes: 2 additions & 2 deletions src/oss/langgraph/thinking-in-langgraph.mdx
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Expand Up @@ -482,7 +482,7 @@ We'll implement each node as a simple function. Remember: nodes take state, do w
from langchain_openai import ChatOpenAI
from langchain.messages import HumanMessage

llm = ChatOpenAI(model="gpt-4")
llm = ChatOpenAI(model="gpt-5-nano")
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@yanglikun yanglikun Dec 4, 2025

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gpt-4 could not reliably return valid JSON, causing classify_intent to fail.


def read_email(state: EmailAgentState) -> dict:
"""Extract and parse email content"""
Expand Down Expand Up @@ -974,7 +974,7 @@ initial_state = {
config = {"configurable": {"thread_id": "customer_123"}}
result = app.invoke(initial_state, config)
# The graph will pause at human_review
print(f"Draft ready for review: {result['draft_response'][:100]}...")
print(f"human review interrupt:{result['__interrupt__']}")
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@yanglikun yanglikun Dec 4, 2025

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Update logging to avoid printing draft_response before it exists, which previously caused an error in:
print(f"Draft ready for review: {result['draft_response'][:100]}...")


# When ready, provide human input to resume
from langgraph.types import Command
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