ucsc-genome-browser SKILL.md skillA
ucsc-genome-browser from jaechang-hits/sciagent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jaechang-hits/sciagent-skills/ucsc-genome-browser@git:20260528.3e3f998Pins git:20260528.3e3f998 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jaechang-hits/sciagent-skills
- Path
skills/genomics-bioinformatics/databases/ucsc-genome-browser/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260528.3e3f998, committed May 28, 2026
- Size
- 24,007 bytes
- Repository stars
- 381
- License
- a license file GitHub does not identify
Query UCSC Genome Browser REST API for DNA sequences, tracks, gene models, and conservation across 100+ assemblies. Retrieve sequence by region, list/fetch BED/bigWig tracks, chromosome sizes, RefSeq/GENCODE gene structures, PhyloP/PhastCons scores. Use for UCSC annotations; Ensembl REST API for Ensembl gene IDs and VEP variant annotation.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# UCSC Genome Browser ## Overview The UCSC Genome Browser REST API at `https://api.genome.ucsc.edu/` provides programmatic access to genome sequences, annotation tracks, and hub data for 100+ assemblies including hg38, mm39, and dm6. The API is free, requires no authentication, and returns JSON. Use it with the `requests` library to fetch DNA sequences for genomic regions, retrieve track data (genes, repeats, conservation), list available tracks, and query chromosome sizes for genome-scale coordinate arithmetic. ## When to Use - Fetching the reference DNA sequence for any genomic region (e.g., promoter, exon, CRISPR target) across human, mouse, or other assemblies - Retrieving RefSeq or GENCODE gene structure (exon coordinates, CDS boundaries, strand) for a locus of interest - Looking up PhyloP or PhastCons conservation scores to assess evolutionary constraint at a variant site - Listing and querying any of UCSC's 1000+ annotation tracks (repeats, regulatory elements, conservation) for a region - Getting chromosome sizes for a genome assembly to set up bedtools, pysam, or coverage pipelines …
Read the whole file at its exact version.
How to install
mdr add jaechang-hits/sciagent-skills/ucsc-genome-browser@sha256:2cbabc8f528c5a5eThe line at the top of this page pins the label git:20260528.3e3f998, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_4awz5rwgurrr5nk4)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on May 28, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (24007 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
jaechang-hits/sciagent-skills · 381 stars · license a license file GitHub does not identify · pushed 2026-10-16 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4awz5rwgurrr5nk4 GET https://markdownregistry.com/api/v1/resolve?ref=jaechang-hits/sciagent-skills/ucsc-genome-browser GET https://markdownregistry.com/api/v1/blob/2cbabc8f528c5a5eaa02359cc3863c7f2ff7a6d3a2c4b57b2f7d8ad3c7efca4b
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.