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Sift

Indexless Search Tool

Indexless hybrid search (BM25 + Vector) for fast, private document retrieval. Zero-setup context for agentic workflows - no database, no daemon, just a single binary.

Highlights

→Single Rust binary — no external database, daemon, or long-running service; transparent caching in standard user cache directories.
→Layered retrieval pipeline — Query Expansion → Retrieval → Fusion → Reranking with page-index-hybrid as the current benchmark champion preset.
→Hybrid search by default — combines BM25 and vector retrieval; supports bm25, vector, and hybrid strategies switchable per query.
→Autonomous planner runtime — sift search --agent drives bounded linear or graph planning over a local corpus using heuristic or model-driven planner strategies.
→Broad input support — indexes text, HTML, PDF, and OOXML files (.docx, .xlsx, .pptx) with no preprocessing required.
→Embeddable library surface — search, assemble_context, search_controller, and search_autonomous APIs with view, protocol, or latent emission modes.

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