1. Salesforce Help Documentation
"Extend Prompt Templates with Flows": "To ground a prompt template with data from a system that’s external to Salesforce or with complex business logic
use a template-triggered prompt flow. A template-triggered prompt flow is an autolaunched flow that’s available only for prompt templates. The flow can retrieve data from any Salesforce object
including Data Cloud objects..."
2. Salesforce Metadata API Developer Guide
FlowProcessType Enum: The Flow metadata type includes a processType field. The documentation lists PromptTemplate as a valid value for this field
described as "A flow that’s triggered by a prompt template." This confirms it is a distinct and officially recognized type of flow.
3. Salesforce Help Documentation
"Flow and Process Types": This document outlines the various types of flows. While it categorizes Template-triggered prompt flows under the broader "Autolaunched Flow" category
other specific documentation (as cited above) clarifies its unique trigger and purpose for prompt templates.