[BUG] Entity Descriptions in Multiple Languages

[theaiautomators]

Describe the bug

There isn't a way to force the language of the graph descriptions. I have a 50 page PDF that is in English and for some reason, the LLM descriptions are coming out in a mix of languages.

Even setting the Default language to English in the LightRAGConfig in the lightrag_manager.py file and changing the prompts in the LightRAG prompt.py file didn't see to fix it.

To Reproduce

Steps to reproduce the behavior:
Create a new collection
Upload this document - https://www.fia.com/system/files/documents/2025_fia_formula_1_financial_regulations_-_issue_25_-_2025-07-31.pdf
Review the descriptions in the graph - large spread of languages from English, to French, to Spanish

Ideally we'd have an ENV that sets the Default Language

Additional context

• Version DeepRAG v0.5.0-alpha.14

[github-actions]

This issue has been marked as stale because it has been open for 30 days with no activity