Logic Node
Logic handles ordinary business logic such as validation, organization, calculation, and data transformation. It usually does not read or write the database directly, but prepares clear input for later nodes.
Guide
For example, after a reimbursement form is submitted, the system first checks whether the amount format is correct and whether the invoice list is empty.
The system can convert the amount into cents and organize it into internal reimbursement data.
You can understand it as: calculate, validate the format, and organize the data first.