Goal

Component to build/query an ANN index (HNSW, flat, etc) from input vectors; host stores index bytes, queries for nearest neighbors on demand.

Scope/Features

• Build: vectors in, index bytes out
• Query: index bytes in, vector in, K hits out
• No embedding modeling inside component; host provides vectors

Rough WIT shape

• build(vecs: list<vec>) -> list<u8>
• query(index: list<u8>, q: list<f32>, k: u32) -> list<hit>
• Vec/hit types.

Candidate crates

• hnsw
• k-nn
• annembed

Labels

• help wanted

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Good stepping stone for more advanced resource/stream-based interfaces in future.