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CommunityRepos & SDKs3 starsVerified 2026-09-22

LlamaIndex + TypeSafe Jev

Unofficial LlamaIndex reranker and router built on the official Python SDK: JevRerank scores retrieved passages and JevSingleSelector chooses which tool handles a query.

Open github.comWiktorB2004/llama-index-jev
Category
Repos & SDKs
Published by
Community
Author
WiktorB2004
Added
2026-09-22
Tagscommunitypythonsdkrerankingroutingllamaindex

Highlights

  • Two packages: llama-index-postprocessor-jev reranks after retrieval, and llama-index-selectors-jev picks a tool before a call.
  • Score mode is a 0-3 relevance rubric, not cosine similarity; rerank fails open, while select fails closed.
  • BEIR nfcorpus test: nDCG@5 rose from 0.340 with MiniLM alone to 0.396 with Jev reranking, at about $0.0003 per query.
  • Rerank asks one relevance question per passage; selection batches a Choice or one Noul per option in a single request.

Quickstart

bash
pip install llama-index-postprocessor-jev
pip install llama-index-selectors-jev
export TYPESAFE_API_KEY=YOUR_API_KEY

Watch out

MIT-licensed. Needs Python 3.10+ and a TYPESAFE_API_KEY or an OPENROUTER_API_KEY with provider=openrouter; not affiliated with TypeSafe or LlamaIndex.

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