copy only needed env variables

Author: ihrpr

README.md

@@ -549,7 +549,7 @@ from mcp.types import PromptReference, ResourceTemplateReference
 server_params = StdioServerParameters(
     command="uv",  # Using uv to run the server
     args=["run", "server", "completion", "stdio"],  # Server with completion support
-    env=os.environ.copy(),  # Pass environment variables
+    env={"UV_INDEX": os.environ.get("UV_INDEX", "")},
 )
 
 
@@ -1181,7 +1181,7 @@ from mcp.shared.context import RequestContext
 server_params = StdioServerParameters(
     command="uv",  # Using uv to run the server
     args=["run", "server", "fastmcp_quickstart", "stdio"],  # We're already in snippets dir
-    env=os.environ.copy(),  # Pass environment variables
+    env={"UV_INDEX": os.environ.get("UV_INDEX", "")},
 )
 
 

examples/snippets/clients/completion_client.py

@@ -16,7 +16,7 @@
 server_params = StdioServerParameters(
     command="uv",  # Using uv to run the server
     args=["run", "server", "completion", "stdio"],  # Server with completion support
-    env=os.environ.copy(),  # Pass environment variables
+    env={"UV_INDEX": os.environ.get("UV_INDEX", "")},
 )
 
 

examples/snippets/clients/stdio_client.py

@@ -18,7 +18,7 @@
 server_params = StdioServerParameters(
     command="uv",  # Using uv to run the server
     args=["run", "server", "fastmcp_quickstart", "stdio"],  # We're already in snippets dir
-    env=os.environ.copy(),  # Pass environment variables
+    env={"UV_INDEX": os.environ.get("UV_INDEX", "")},
 )