datasketches-cpp
reference corpus · status live · domain DB (Databases and storage engines) · lane A · refresh pinned · tags GLOBAL · SKETCHES · CARDINALITY · QUANTILES · AGGREGATION · CPP
What an agent uses it for
An agent working on approximate aggregations (distinct-count, quantiles, frequent-items) queries this for DataSketches' HLL, CPC, KLL and Theta sketch algorithms.
curl -fsSLO https://raw.githubusercontent.com/xerj-org/xerj/corpus-hub/tools/xerj-code/hub/datasketches-cpp.jsonxerj corpus add --from ./datasketches-cpp.jsonxerj corpus index datasketches-cpp then xerj code datasketches-cpp "your question"Needs the xerj CLI and a local node running; the copy prompt covers both, checks each step, and shows how to stop only the node you started. No shell: the MCP tool xerj_code_search with corpus: "datasketches-cpp", once the corpus is indexed on the node.
Sources and pins
| source | pin | licence | size | review note |
|---|---|---|---|---|
| datasketches-cpp | 9a7226e3494b | Apache-2.0 | 2.7 MB / 306 files | licence host-verified (ok-spdx): Apache-2.0 |
2.7 MB across 306 files. Added 2026-10-13.
Rights
Apache-2.0. Redistribution permitted with attribution per the licence review. The review block records a human opening each licence file at the pin. Detector output is a hint, never the verdict.
Retrieval spot-check (G7)
Not yet spot-checked. Queries are pre-registered in the registry before grading.