adding Git MCP server example

examples/mcp/git_example/main.py

@@ -0,0 +1,48 @@
+import asyncio
+import os
+import shutil
+
+from agents import Agent, Runner, trace
+from agents.mcp import MCPServer, MCPServerStdio
+
+async def run(mcp_server: MCPServer, directory_path: str):
+    agent = Agent(
+        name="Assistant",
+        instructions=f"Answer questions about the git repository at {directory_path}, use that for repo_path",
+        mcp_servers=[mcp_server],
+    )
+
+    message = f"Who's the most frequent contributor?"
+    print("\n" + "-" * 40)
+    print(f"Running: {message}")
+    result = await Runner.run(starting_agent=agent, input=message)
+    print(result.final_output)
+
+    message = f"Summarize the last change in the repository."
+    print("\n" + "-" * 40)
+    print(f"Running: {message}")
+    result = await Runner.run(starting_agent=agent, input=message)
+    print(result.final_output)
+
+
+async def main():
+    # Ask the user for the directory path
+    directory_path = input("Please enter the path to the git repository: ")
+
+    async with MCPServerStdio(
+        params={
+            "command": "uvx",
+            "args": [
+                "mcp-server-git"
+            ]
+        }
+    ) as server:
+        with trace(workflow_name="MCP Git Example"):
+            await run(server, directory_path)
+
+
+if __name__ == "__main__":
+    if not shutil.which("uvx"):
+        raise RuntimeError("uvx is not installed. Please install it with `pip install uvx`.")
+
+    asyncio.run(main())