add example using mistral with langchain

examples/langchain/mistral-example/main.py

@@ -0,0 +1,98 @@
+from langchain.agents import AgentExecutor, create_tool_calling_agent
+from langchain.memory import ConversationBufferMemory
+from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder
+from langchain_mistralai import ChatMistralAI
+
+from hyperpocket.config import secret
+from hyperpocket.tool import from_git
+from hyperpocket_langchain import PocketLangchain
+
+
+def agent(pocket: PocketLangchain):
+    tools = pocket.get_tools()
+
+    llm = ChatMistralAI(model="mistral-large-latest", api_key=secret["MISTRAL_API_KEY"])
+
+    prompt = ChatPromptTemplate.from_messages(
+        [
+            (
+                "system",
+                "You are a tool calling assistant. You can help the user by calling proper tools",
+            ),
+            ("placeholder", "{chat_history}"),
+            ("user", "{input}"),
+            MessagesPlaceholder(variable_name="agent_scratchpad"),
+        ]
+    )
+
+    memory = ConversationBufferMemory(memory_key="chat_history", return_messages=True)
+    agent = create_tool_calling_agent(llm, tools, prompt)
+    agent_executor = AgentExecutor(
+        agent=agent,
+        tools=tools,
+        memory=memory,
+        verbose=True,
+        handle_parsing_errors=True,
+    )
+
+    print("\n\n\n")
+    print("Hello, this is langchain slack agent.")
+    while True:
+        print("user(q to quit) : ", end="")
+        user_input = input()
+        if user_input == "q":
+            print("Good bye!")
+            break
+
+        response = agent_executor.invoke({"input": user_input})
+        print("slack agent : ", response["output"])
+        print()
+
+
+if __name__ == "__main__":
+    with PocketLangchain(
+        tools=[
+            from_git(
+                "https://github.com/vessl-ai/hyperawesometools",
+                "main",
+                "managed-tools/slack/get-message",
+            ),
+            from_git(
+                "https://github.com/vessl-ai/hyperawesometools",
+                "main",
+                "managed-tools/slack/post-message",
+            ),
+            from_git(
+                "https://github.com/vessl-ai/hyperawesometools",
+                "main",
+                "managed-tools/linear/get-issues",
+            ),
+            from_git(
+                "https://github.com/vessl-ai/hyperawesometools",
+                "main",
+                "managed-tools/google/get-calendar-events",
+            ),
+            from_git(
+                "https://github.com/vessl-ai/hyperawesometools",
+                "main",
+                "managed-tools/google/get-calendar-list",
+            ),
+            from_git(
+                "https://github.com/vessl-ai/hyperawesometools",
+                "main",
+                "managed-tools/google/insert-calendar-events",
+            ),
+            from_git(
+                "https://github.com/vessl-ai/hyperawesometools",
+                "main",
+                "managed-tools/github/pr-list",
+            ),
+            from_git(
+                "https://github.com/vessl-ai/hyperawesometools",
+                "main",
+                "managed-tools/github/read-pull-request",
+            ),
+        ],
+        # force_update=True,
+    ) as pocket:
+        agent(pocket)

examples/langchain/mistral-example/pyproject.toml

@@ -0,0 +1,16 @@
+[project]
+name = "mistral-example"
+version = "0.1.0"
+description = "Add your description here"
+readme = "README.md"
+requires-python = ">=3.12"
+dependencies = [
+    "hyperpocket",
+    "hyperpocket-langchain",
+    "langchain>=0.3.15",
+    "langchain-mistralai>=0.2.4",
+]
+
+[tool.uv.sources]
+hyperpocket-langchain = { path = "../../../libs/extensions/langchain", editable = true }
+hyperpocket = { path = "../../../libs/hyperpocket", editable = true }