[CLI as MCP] Initialize Local MCP Server

.github/CODEOWNERS

@@ -331,3 +331,5 @@
 /src/carbon/ @itiinani
 
 /src/amlfs/ @Aman-Jain-14 @amajai @mawhite @brpanask @tibanyas
+
+/src/azext_mcp/ @ReaNAiveD

src/mcp-server/HISTORY.rst

@@ -0,0 +1,8 @@
+.. :changelog:
+
+Release History
+===============
+
+1.0.0b1
+++++++
+* Initial release.

src/mcp-server/README.rst

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+Microsoft Azure CLI 'mcp' Extension
+==========================================
+
+This package is for the 'mcp' extension.
+i.e. 'az mcp'

src/mcp-server/azext_mcp/__init__.py

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+# --------------------------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# --------------------------------------------------------------------------------------------
+
+from azure.cli.core import AzCommandsLoader
+
+from azext_mcp._help import helps  # pylint: disable=unused-import
+
+
+class McpCommandsLoader(AzCommandsLoader):
+
+    def __init__(self, cli_ctx=None):
+        from azure.cli.core.commands import CliCommandType
+        mcp_custom = CliCommandType(operations_tmpl='azext_mcp.custom#{}')
+        super(McpCommandsLoader, self).__init__(cli_ctx=cli_ctx, custom_command_type=mcp_custom)
+
+    def load_command_table(self, args):
+        from azext_mcp.commands import load_command_table
+        load_command_table(self, args)
+        return self.command_table
+
+    def load_arguments(self, command):
+        from azext_mcp._params import load_arguments
+        load_arguments(self, command)
+
+
+COMMAND_LOADER_CLS = McpCommandsLoader

src/mcp-server/azext_mcp/_help.py

@@ -0,0 +1,18 @@
+# coding=utf-8
+# --------------------------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# --------------------------------------------------------------------------------------------
+
+from knack.help_files import helps  # pylint: disable=unused-import
+
+
+helps['mcp'] = """
+    type: group
+    short-summary: CLI as local MCP servers.
+"""
+
+helps['mcp up'] = """
+    type: command
+    short-summary: local MCP server up.
+"""

src/mcp-server/azext_mcp/_params.py

@@ -0,0 +1,17 @@
+# --------------------------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# --------------------------------------------------------------------------------------------
+# pylint: disable=line-too-long
+
+from knack.arguments import CLIArgumentType
+
+
+def load_arguments(self, _):
+
+    with self.argument_context('mcp') as c:
+        pass
+
+    with self.argument_context('mcp up') as c:
+        # c.argument('port', required=False, default=8080, type=int, help='MCP server port.')
+        pass

src/mcp-server/azext_mcp/azext_metadata.json

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+{
+    "azext.isPreview": true,
+    "azext.minCliCoreVersion": "2.57.0"
+}