Tensor Grep Semantic Search Campaign

About this skill

Use when building, extending, or reviewing tensor-grep's APPROVED local hybrid semantic search — BM25 + CPU dense embeddings fused with Reciprocal Rank Fusion (RRF), no API key, no GPU (roadmap item 1). Load before adding a dense/embedding leg, RRF fusion, a tg index command, or changing tg search --rank / --bm25. Covers the decision-gated build phases with exact commands + expected gate numbers, the ranked solution menu (Semble / ripvec / BM25-only) with derivation obligations, the retrieval-quality + editor-plane + token-economy promotion gates, the Backend Fail-Closed Contract for the dense leg, fenced-off wrong paths (no API-key embeddings, no GPU dependency, do not break --format rg / --json / --ndjson semantics), and routing promotion through change-control. STATUS as of 2026-07-08, v1.49.3: the dense leg + RRF fusion described here as the target architecture (Candidate 1 / the Semble pattern) SHIPPED as tg search --semantic (retrievaldense.py + retrievalfusion.py, default-OFF, gated on the semantic extra) — this skill's Phases 0-3 are now historical/reference for HOW it was built; see the STATUS note below before assuming any "not built yet" claim in Sections 1-2.

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Original listing metadata

Original name

tensor-grep-semantic-search-campaign

Original description

Use when building, extending, or reviewing tensor-grep's APPROVED local hybrid semantic search — BM25 + CPU dense embeddings fused with Reciprocal Rank Fusion (RRF), no API key, no GPU (roadmap item #1). Load before adding a dense/embedding leg, RRF fusion, a `tg index` command, or changing `tg search --rank` / `--bm25`. Covers the decision-gated build phases with exact commands + expected gate numbers, the ranked solution menu (Semble / ripvec / BM25-only) with derivation obligations, the retrieval-quality + editor-plane + token-economy promotion gates, the Backend Fail-Closed Contract for the dense leg, fenced-off wrong paths (no API-key embeddings, no GPU dependency, do not break `--format rg` / `--json` / `--ndjson` semantics), and routing promotion through change-control. STATUS as of 2026-07-08, v1.49.3: the dense leg + RRF fusion described here as the target architecture (Candidate 1 / the Semble pattern) SHIPPED as `tg search --semantic` (`retrieval_dense.py` + `retrieval_fusion.py`, default-OFF, gated on the `semantic` extra) — this skill's Phases 0-3 are now historical/reference for HOW it was built; see the STATUS note below before assuming any "not built yet" claim in Sections 1-2.

About this listing

Category: Content & writing
Reported license: Not specified
Listing language (estimated): English
Review status: Not individually reviewed
Agent compatibility: Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.