fix(cli): change prerelease behavior (#6156)

respect users config, use uv defaults

libs/cli/examples/graph_prerelease_reqs/agent.py

@@ -1,7 +1,6 @@
 from collections.abc import Sequence
 from typing import Annotated, Literal, TypedDict
 
-from langchain.chat_models import init_chat_model
 from langchain_community.tools.tavily_search import TavilySearchResults
 from langchain_core.messages import BaseMessage
 from langchain_openai import ChatOpenAI
@@ -10,10 +9,8 @@ from langgraph.prebuilt import ToolNode
 
 tools = [TavilySearchResults(max_results=1)]
 
-model_anth = init_chat_model("claude-3-7-sonnet-20250219", model_provider="anthropic")
 model_oai = ChatOpenAI(temperature=0)
 
-model_anth = model_anth.bind_tools(tools)
 model_oai = model_oai.bind_tools(tools)
 
 
@@ -35,10 +32,7 @@ def should_continue(state):
 
 # Define the function that calls the model
 def call_model(state, config):
-    if config["configurable"].get("model", "anthropic") == "anthropic":
-        model = model_anth
-    else:
-        model = model_oai
+    model = model_oai
     messages = state["messages"]
     response = model.invoke(messages)
     # We return a list, because this will get added to the existing list

libs/cli/examples/graph_prerelease_reqs/deps/additional_deps/pyproject.toml

@@ -0,0 +1,9 @@
+[project]
+name = "graph-prerelease-reqs-additional-deps"
+version = "0.1.0"
+description = "Test for prerelease stuff"
+readme = "README.md"
+requires-python = ">=3.10"
+dependencies = [
+  "langgraph==0.6.0"
+]

libs/cli/examples/graph_prerelease_reqs/deps/zuper_deps/pyproject.toml

@@ -0,0 +1,9 @@
+[project]
+name = "graph-prerelease-reqs-zuper-deps"
+version = "0.1.0"
+description = "Test for prerelease stuff"
+readme = "README.md"
+requires-python = ">=3.10"
+dependencies = [
+  "langchain-openai==0.3.0"
+]

libs/cli/examples/graph_prerelease_reqs/langgraph.json

@@ -1,7 +1,9 @@
 {
     "python_version": "3.12",
     "dependencies": [
-      "."
+      ".",
+      "./deps/additional_deps",
+      "./deps/zuper_deps"
     ],
     "graphs": {
       "agent": "./agent.py:graph"

libs/cli/examples/graph_prerelease_reqs/pyproject.toml

@@ -0,0 +1,14 @@
+[project]
+name = "graph-prerelease-reqs"
+version = "0.1.0"
+description = "Test for prerelease stuff"
+readme = "README.md"
+requires-python = ">=3.10"
+dependencies = [
+  "langchain-openai==1.0.0a2",
+  "langgraph==1.0.0a2",
+  "langchain_community>=0.3.0",
+]
+
+[tool.uv]
+prerelease = "allow"

libs/cli/examples/graph_prerelease_reqs/requirements.txt

@@ -1,6 +0,0 @@
-requests
-langchain_anthropic
-langchain_openai
-langchain_community
-langchain
-langgraph==1.0.0a2