Module kernel_interop 

Kernel ↔ VSA interop layer (non-FUSE).

This module defines a minimal abstraction boundary between a kernel/runtime and the VSA substrate. The goal is to keep non-FUSE builds first-class by avoiding any dependency on the FUSE shim while still enabling:

• reversible encode/decode for byte payloads
• algebraic VSA ops (bundle, bind, similarity)
• a retrieval seam (candidate generation + optional rerank)

Structs

SparseVecBackend

Default backend for today: the existing SparseVec substrate.

Enums

KernelInteropError

Errors from kernel↔VSA interop helpers.

Traits

CandidateGenerator

Candidate generation seam. Intended to wrap e.g. TernaryInvertedIndex.

VectorStore

Minimal vector store abstraction.

VsaBackend

Backend-agnostic VSA operations exposed to a kernel/runtime.

Functions

rerank_top_k_by_cosine

Rerank a set of candidate IDs by exact cosine similarity.