fix(git): keep stdio validation errors recoverable

src/git/src/mcp_server_git/server.py

@@ -584,4 +584,4 @@ async def call_tool(name: str, arguments: dict) -> list[TextContent]:
 
     options = server.create_initialization_options()
     async with stdio_server() as (read_stream, write_stream):
-        await server.run(read_stream, write_stream, options, raise_exceptions=True)
+        await server.run(read_stream, write_stream, options)

src/git/tests/test_server.py

@@ -1,7 +1,10 @@
+import asyncio
+from contextlib import asynccontextmanager
 import pytest
 from pathlib import Path
 import git
 from git.exc import BadName
+import mcp_server_git.server as server_module
 from mcp_server_git.server import (
     git_checkout,
     git_branch,
@@ -39,6 +42,39 @@ def test_git_checkout_existing_branch(test_repository):
     assert "Switched to branch 'test-branch'" in result
     assert test_repository.active_branch.name == "test-branch"
 
+def test_stdio_transport_errors_do_not_abort_server(monkeypatch):
+    captured_run_kwargs = {}
+
+    class FakeServer:
+        def __init__(self, name):
+            self.name = name
+
+        def list_roots(self):
+            return lambda fn: fn
+
+        def list_tools(self):
+            return lambda fn: fn
+
+        def call_tool(self):
+            return lambda fn: fn
+
+        def create_initialization_options(self):
+            return object()
+
+        async def run(self, read_stream, write_stream, options, **kwargs):
+            captured_run_kwargs.update(kwargs)
+
+    @asynccontextmanager
+    async def fake_stdio_server():
+        yield object(), object()
+
+    monkeypatch.setattr(server_module, "Server", FakeServer)
+    monkeypatch.setattr(server_module, "stdio_server", fake_stdio_server)
+
+    asyncio.run(server_module.serve(repository=None))
+
+    assert "raise_exceptions" not in captured_run_kwargs
+
 def test_git_checkout_nonexistent_branch(test_repository):
 
     with pytest.raises(BadName):