> ## Documentation Index
> Fetch the complete documentation index at: https://docs.contextual.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Rerank Instructions

> `(rerank_instructions)`

## Description

Natural language instructions that describe your preferences for the ranking of chunks, such as prioritizing chunks from particular sources or time periods. Chunks will be rescored based on these instructions and the user query.

If no instruction is given, the rerank scores are based only on relevance of chunks to the query.