Graph Examples

Complete Example Catalog

#	CLI topic	Technical focus	API needed?
01	greeting	Single graph node, string state	No
02	factorial	Integer state and deterministic computation	No
03	llm_node	Optional ChatOpenAI node	Yes
04	normal_edges	Reverse then uppercase sequential graph	No
05	conditional_edges	Route after adding ten	No
06	typed_dict_state	Even/odd router using a TypedDict	No
07	pydantic_state	Input/output validation with Pydantic	No
08	input_output_schemas	Separate external input, internal state, output	No
09	private_schema	Derived intermediate private channels	No
10	reducer_overwrite	Last write replaces field	No
11	reducer_numeric_add	Numeric accumulation	No
12	reducer_list_append	List concatenation	No
13	custom_reducer	Ordered unique-list merge	No
14	add_messages	Add/replace messages by ID (no graph)	No
15	messages_state	Offline canned assistant with MessagesState	No
16	messages_state_llm	Optional model-backed message response	Yes
17	subgraph_wrapper	HR parent invokes IT with a different schema	No
18	subgraph_direct	HR parent adds compiled IT subgraph directly	No

Useful commands

python .\langgraph_example_multi_agents.py --list
python .\langgraph_example_multi_agents.py --topic typed_dict_state
python .\langgraph_example_multi_agents.py --topic subgraph_direct
python .\langgraph_example_multi_agents.py --self-test

See CLI Reference for complete options and Notebook Guide for the independent notebook.