mnem-rerank-providers

Cross-encoder reranker adapters for mnem (Cohere, Voyage, Jina). Sync, TLS-via-rustls, tokio-free.

Provides production adapters for the Reranker trait defined in mnem-core (mnem_core::rerank). Per , the retrieve pipeline invokes a reranker as an optional post-fusion pass over the top-K. The cross-encoders here read (query, candidate) pairs jointly, which is what lets them handle compositional paraphrase that dense + sparse bi-encoder fusion misses ("father's sister" vs "aunt"). All adapters are sync over ureq + rustls, matching the discipline in mnem-embed-providers. API keys stay in env vars; config only records the env-var name.

use std::sync::Arc;
use mnem_rerank_providers::{open, ProviderConfig, CohereConfig};
use mnem_core::rerank::Reranker;

let cfg = ProviderConfig::Cohere(CohereConfig {
    model: "rerank-v3.5".into,
    ..Default::default
});
let rr: Arc<dyn Reranker> = open(&cfg)?;

Workspace top: ../../README.md.

Licensed under Apache-2.0.