PromptScoutPromptScout

What is Prompt Index?

Prompt Index is a structured list of prompts with stable identifiers and metadata used for repeatable monitoring. Prompt Index supports consistent measurement by keeping prompt definitions and grouping stable over time.

Quick definition

Prompt Index is an organized list of prompts used to run the same checks repeatedly.

How Prompt Index works

  • Prompt Index assigns each prompt a stable ID so results can be stored and compared.
  • Prompt Index often stores intent labels and topic grouping.
  • Prompt Index can be versioned to track changes in the prompt set.
  • Prompt Index is used to compute prompt coverage and track prompt performance.

Why Prompt Index matters

Prompt Index matters because monitoring requires comparability across time.

Prompt Index supports:

  • repeatable prompt monitoring
  • reliable aggregation of metrics across a prompt set
  • controlled changes when prompts are added or updated

Example use cases

  • Freezing a prompt index for a quarterly reporting period.
  • Using a prompt index to compare results across providers.
  • Adding prompts via prompt discovery while preserving historical comparability.

Related terms