osobhandClaude Opus 5
8b85d9364b
`MemoryConfig::quantized_index` now defaults to `true`. It holds a quarter of the index memory and, with the exact re-score, is faster at equal recall on every configuration measured: 1.63x the queries per second on x86-64 (AVX2) and 1.18x on a Raspberry Pi 5 (NEON SDOT), with builds 1.8x and 2.3x faster. The one argument for keeping it off — that int8 search was slower on ARM — did not survive being measured. Existing stores do not change. A store written with v2.6.0 or later keeps its persisted setting. One written before the setting existed has no stored value, and it loads as `false` rather than as the new default, so reopening it never changes how its index is held. That case is guarded by a real store written with the v2.5.0 CLI, committed as `tests/fixtures/store_v2_5_0.h5` (6.8 KB): the test asserts it reopens with an f32 index and still searches, and it fails if the load default is changed to `true`. The CLI needed more than a new default. `create --quantized-index` assigned its value straight into the config, so under the new default every CLI-created store would have been forced back to f32 unless the caller knew to ask for int8. It is replaced by `--f32-index`, which only ever switches the default off; `--quantized-index` is still accepted, hidden, as a no-op, and the two conflict. The whole agent suite passes under the new default, including the brute-force recall oracle, now running on int8 plus re-score without being asked to. Co-Authored-By: Claude Opus 5 (1M context) <[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