AWS MCP Server

Instructions

Implementation Reference

• src/mcp_server_aws/server.py:202-207 (handler)

  Executes the dynamodb_table_update tool by calling boto3's update_table with the provided table name and attribute definitions.

  elif name == "dynamodb_table_update":
      update_params = {
          "TableName": arguments["table_name"],
          "AttributeDefinitions": arguments["attribute_definitions"]
      }
      response = dynamodb_client.update_table(**update_params)

• src/mcp_server_aws/tools.py:177-194 (schema)

  Defines the input schema for the dynamodb_table_update tool, requiring table_name and attribute_definitions.

  Tool(
      name="dynamodb_table_update",
      description="Update a DynamoDB table",
      inputSchema={
          "type": "object",
          "properties": {
              "table_name": {
                  "type": "string",
                  "description": "Name of the DynamoDB table"
              },
              "attribute_definitions": {
                  "type": "array",
                  "description": "Updated attribute definitions"
              }
          },
          "required": ["table_name", "attribute_definitions"]
      }
  ),

• src/mcp_server_aws/server.py:136-140 (registration)

  Registers the dynamodb_table_update tool (among others) with the MCP server by including it in the list returned from get_aws_tools().

  async def list_tools() -> list[Tool]:
      """List available AWS tools"""
      logger.debug("Handling list_tools request")
      return get_aws_tools()