Prompt Surface Area
noun

Definition:
The breadth of user prompts or queries for which a piece of content is likely to be retrieved, referenced, or influence an LLM’s response. A larger prompt surface area means the content semantically aligns with a wider variety of natural language inputs.

Usage:
“Expanding their prompt surface area helped them appear in responses to both consumer and technical queries.”

Compare:
Query Intent Mapping, Semantic Coverage, Long-Tail Optimization