Specify prompts for local and global search via config/CLI

[yangxue-1]

Is there an existing issue for this?

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• I have checked #657 to validate if my issue is covered by community support

Describe the issue

How to adjust the prompt template used for global search and local search? Is there any related document?

global prompt:map_system_prompt.py,reduce_system_prompt.py

local prompt:system_prompt.py

Steps to reproduce

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GraphRAG Config Used

# Paste your config here

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Additional Information

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[natoverse]

The GlobalSearch and LocalSearch classes do accept prompts, so if you are building a search implementation you can supply edited prompts. We don't expose that through the CLI or config file right now, so I'll add this to the backlog for investigation. In the meantime, have a look at the search factories for examples of how to instantiate the classes directly (these factories are used by the CLI, so you can trace through).