Why It Exists
Most retrieval systems store raw chunks and build a separate index. Spectrum tests a different architecture: the compact artifact and the retrieval representation can be the same thing.
Spectrum Store Developer Preview
Lossless, searchable codebase packs for local agents and RAG.
Spectrum turns source trees into compact .specpack stores
that can be searched, retrieved, decoded, and verified back to the
original bytes.
Install
Try the CLI
The preview ships as an npm-installed command line tool for packing, searching, verifying, and unpacking local repositories.
npm install -g spectrumstore
spectrum doctor
spectrum pack ./my-repo ./my-repo.specpack --json
spectrum search ./my-repo.specpack "authentication middleware" --top 5 --json
spectrum verify ./my-repo.specpack --jsonWhat It Preserves
Packs are deterministic and lossless, so selected context can be hydrated back into exact source rather than approximate snippets.
Where It Fits
Spectrum is aimed at AI agent memory, codebase retrieval, local RAG, compact searchable archives, and exact source reconstruction.
Current Benchmark Signal
Large-corpus serving profile
- Corpus
- 72,601 documents
- Raw bytes
- 1.03 GB
- Compact store
- 0.3585x raw
- Serving footprint
- 0.4882x raw
- MRR
- 0.8625
- Recall@5
- 0.8750
- Avg E2E
- 4.78 ms
- P95 E2E
- 6.35 ms