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tiledbvcf

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Stores and queries genomic variant data in TileDB-VCF datasets using the tiledbvcf Python API and CLI (create, store, export, list, stat). Covers ingesting single-sample VCF/BCF files with .csi or .tbi indexes, adding samples incrementally, querying regions and samples in parallel, and exporting to VCF/BCF or TSV, on local disk or S3, Azure, and GCS. Use when building a variant database for a cohort, adding new samples to an existing dataset, querying specific regions across many samples, exporting subsets of a large VCF collection, or preparing population genomics data such as allele frequency or GWAS inputs. Not for multi-sample VCFs, which are unsupported, or for one-off parsing of a single VCF file.

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Nov 7, 2026
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Apache-2.0

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# TileDB-VCF

## Overview

TileDB-VCF is a high-performance C++ library with Python and CLI interfaces for efficient storage and retrieval of genomic variant-call data. Built on TileDB's sparse array technology, it enables scalable ingestion of VCF/BCF files, incremental sample addition without expensive merging operations, and efficient parallel queries of variant data stored locally or in the cloud.

## When to Use This Skill

This skill should be used when:
- Learning TileDB-VCF concepts and workflows
- Prototyping genomics analyses and pipelines
- Working with small-to-medium datasets (< 1000 samples)
- Need incremental addition of new samples to existing datasets
- Require efficient querying of specific genomic regions across many samples