Start Node

Definition

The Start node is a preset starting node required in every workflow. It serves as the first node for creating and configuring global variables, providing initial information for the normal execution of subsequent workflow nodes and the overall application flow.

Configuration

On the Start Node settings page, you will see two parts of the settings: custom variables and preset system variables. The preset configurations of the Start node differ between Interactive Flow and Service Flow.

Custom Variable

Users can preset custom variables based on their needs for use in subsequent processes. For example, in a weekly report assistant workflow, users are required to provide background information in advance according to a specified format, such as their name, work date range, and job responsibilities. This preliminary information helps LLMs generate higher-quality responses.

Add Custom Variable:

Select the “Start” node, then click the “+” sign to the right of “Custom Variable” to add it.

System Variable

System variables are system-level parameters preset in both Interactive and Service Flow modes. These variables can be read globally by other nodes within the application. They are usually used in advanced development scenarios such as building multi-turn dialogue applications, collecting application logs, and monitoring or recording usage behavior across different applications and users.

System Variables for Service Flow:

System Variables for Interactive Flow:

Remark

You can fill in the remarks and explanations for the Start node here.

Note

• After entering the parameter name, make sure to select the corresponding field type.
• The custom variables you enter must fulfill the format requirements. If they do not comply with the format requirements, they cannot be entered.