osobhandClaude Fable 5.1
2bfbb7fb4b
hybrid_search rebuilt the BM25 index from scratch (re-tokenising every record) and rewrote the whole .h5 file on every single query, so a query cost O(store size) in both CPU and disk I/O. Steady-state p50 per the search harness: 5.5 -> 0.24 ms (1K), 49 -> 2.1 ms (10K), 884 -> 23 ms (100K). - BM25Index is incremental: add_document / remove_document keep it exactly equivalent to a fresh build over the same live documents (property test: 60 random op sequences compared against BM25Index::build after every step). IDF moves to query time since it depends on the live document count. Top-k uses a bounded heap, ties break by doc id (results were HashMap-ordered), and the "WAND" code that computed a bound and then discarded it is removed. - HDF5Memory keeps one index for its lifetime, built lazily. Appends are picked up by ensure_bm25_fresh whatever path added them; delete and in-place update report themselves; compaction drops the index. A test drives every mutation and compares against a fresh build. - A query no longer calls flush(). Activation boosts are marked dirty and persisted by the next checkpoint, including a best-effort one on drop so a search-only session keeps them (approved behaviour change). Activation weights are capped at 16.0; they previously grew without bound. The archived mission branch's BM25 cache was reviewed and not used: it was invalidated by every write, so interleaved save/search still rebuilt per query, and it changed the default fusion weights. Co-Authored-By: Claude Fable 5.1 <[email protected]>
clawhdf5-agent
HDF5-backed persistent memory store for on-device AI agents.
Built on clawhdf5, clawhdf5-agent provides a vector-searchable memory backend optimized for edge AI workloads. Store embeddings, text chunks, and metadata in a single HDF5 file with SIMD-accelerated similarity search.
Features
- Persistent vector store in HDF5 format
- Cosine similarity and L2 distance search
- SIMD-accelerated via clawhdf5-accel (AVX2, NEON)
- Optional GPU acceleration via clawhdf5-gpu
- Memory-mapped access for large stores
- f16 storage support for compact embeddings
Usage
[dependencies]
clawhdf5-agent = "2.1.0"
License
MIT