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ensembl-database

ensembl-database is a skill for Claude Code from jaechang-hits/SciAgent-Skills. It costs 65 tokens per session (4,337 once invoked), scanned A, original, no licence file.

A connection to Ensembl, a database that annotates genes, transcripts, and genetic variants across more than 300 species. It can return sequences, links to other databases, and regulatory features.

In plain words
What is it for?
Use it to look up genes and transcripts, retrieve sequences, follow HGNC, RefSeq, and UniProt links, and inspect regulatory features.
Why use it?
It provides consistent gene and variant information when working across species or connecting identifiers from different databases.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the sciagent-skills plugin — 206 skills shipped together

not rated 384repo +1 2d ago A scan 65 tokens custom licence

Good fit Use it to look up genes and transcripts, retrieve sequences, follow HGNC, RefSeq, and UniProt links, and inspect regulatory features.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jaechang-hits/sciagent-skills/ensembl-database
View source ↗ jaechang-hits/SciAgent-Skills omicshorizon.ai
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add jaechang-hits/SciAgent-Skills --skill ensembl-database
Clone the repo
git clone --depth 1 https://github.com/jaechang-hits/SciAgent-Skills

Made for: Claude Code.

Or install sciagent-skills, the plugin that ships this one along with the rest of its 206 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for ensembl-database

README.md
[![agentmods](https://agentmods.dev/badge/skills/jaechang-hits/sciagent-skills/ensembl-database/github.svg)](https://agentmods.dev/skills/jaechang-hits/sciagent-skills/ensembl-database)
Your own site
<a href="https://agentmods.dev/skills/jaechang-hits/sciagent-skills/ensembl-database"><img src="https://agentmods.dev/badge/skills/jaechang-hits/sciagent-skills/ensembl-database/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for ensembl-database

Your own site · 80×15
<a href="https://agentmods.dev/skills/jaechang-hits/sciagent-skills/ensembl-database"><img src="https://agentmods.dev/badge/skills/jaechang-hits/sciagent-skills/ensembl-database.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 65 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,337 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00065 $0.04337
Opus 5.5 $0.00026 $0.01735
Sonnet 5.5 $0.00013 $0.00867
Haiku 4.5 $0.00006 $0.00434

Measured 2mo ago against content hash 4ffeda75a9c3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ensembl-database scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

r = requests.get(f"{BASE}{endpoint}", headers=HEADERS, params=params)
skills/genomics-bioinformatics/databases/ensembl-database/SKILL.md · 473 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 473 lines · 65 tokens per session scan A 4ffeda75a9c3

Subscribe to this mod's changes

ensembl-database is a skill published in the GitHub repository jaechang-hits/SciAgent-Skills (384 stars, last pushed 2d ago), with no licence file. It adds 65 tokens to every session and 4,337 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Claude CodeDatabasesScientificai-agentbioinformaticsclaude-plugindrug-discoverygenomics
Related

ensembl-database compared with skills from other repositories

ensembl-database next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
ensembl-databasejaechang-hits/SciAgent-SkillsSkill3842d agononeA65Claude Code
turingdb-graphClawBio/ClawBioSkill1.2kyesterdaynoneA31Claude Code
bioinformatics-on-healthomicsawslabs/hcls-agent-skillsSkill721mo agoMIT-0A199Claude Code, Codex
polars-bioClawBio/ClawBioSkill1.2kyesterdaynoneC63Claude Code
biomcp-researchgenomoncology/biomcpSkill674yesterdayMITA36Claude Code
drug-discovery-searchbeita6969/ScienceClawSkill1.0kyesterdayMITB33Claude Code, Codex
alterlab-tiledbvcfAlterLab-IEU/AlterLab-Academic-SkillsSkill85yesterdayMITA93Claude Code