Prompt Template Variables

Also known as: template variables, prompt placeholders

Prompt template variables are named placeholders within a prompt template that are replaced with actual values at request time, such as a user's name, a retrieved document, or a task-specific parameter. They enable a single template to serve many different inputs while keeping instructional logic consistent. Well-named variables also serve as documentation, making it clear to engineers and product teams exactly what dynamic content the prompt incorporates and where.