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ensembl-database

ensembl-database is a skill for Claude Code from jimmc414/Kosmos. It costs 45 tokens per session (1,935 once invoked), scanned A, original, no licence file.

A tool for querying Ensembl, a public database of genes and genomes from more than 250 species.

In plain words
What is it for?
Use it to look up genes, fetch DNA sequences, study genetic variants, compare species, find related genes, and get VEP variant-effect predictions.
Why use it?
It removes the need to find and retrieve gene, sequence, variant, and related-species information manually.

Skill for Claude Code

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

Part of the scientific-skills plugin — 119 skills shipped together

not rated 605repo +1 28d ago A scan 45 tokens no licence

Good fit Use it to look up genes, fetch DNA sequences, study genetic variants, compare species, find related genes, and get VEP variant-effect predictions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jimmc414/kosmos/ensembl-database
View source ↗ jimmc414/Kosmos
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 jimmc414/Kosmos --skill ensembl-database
Clone the repo
git clone --depth 1 https://github.com/jimmc414/Kosmos

Made for: Claude Code.

Or install scientific-skills, the plugin that ships this one along with the rest of its 119 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/jimmc414/kosmos/ensembl-database/github.svg)](https://agentmods.dev/skills/jimmc414/kosmos/ensembl-database)
Your own site
<a href="https://agentmods.dev/skills/jimmc414/kosmos/ensembl-database"><img src="https://agentmods.dev/badge/skills/jimmc414/kosmos/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/jimmc414/kosmos/ensembl-database"><img src="https://agentmods.dev/badge/skills/jimmc414/kosmos/ensembl-database.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,935 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 $0.00045 $0.01935
Opus 5.5 $0.00018 $0.00774
Sonnet 5.5 $0.00009 $0.00387
Haiku 4.5 $0.00005 $0.00194

Measured 2mo ago against content hash 68ba4e39c9a7, 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.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/ensembl_query.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

response = requests.get(
kosmos-claude-scientific-skills/scientific-skills/ensembl-database/SKILL.md · 306 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 306 lines · 45 tokens per session scan A 68ba4e39c9a7

Subscribe to this mod's changes

ensembl-database is a skill published in the GitHub repository jimmc414/Kosmos (605 stars, last pushed 28d ago), with no licence file. It adds 45 tokens to every session and 1,935 once invoked, about $0.0002 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.

DatabasesScientific
Related

ensembl-database compared with skills from other repositories

ensembl-database next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
ensembl-databasejimmc414/KosmosSkill60528d agononeA45Claude Code
tiledbvcfK-Dense-AI/scientific-agent-skillsSkill56k4d agoMITA62Claude Code, Codex
lamindbK-Dense-AI/scientific-agent-skillsSkill56k4d agoMITA58Claude Code, Codex
defining-cohort-phenotypesmaziyarpanahi/openmedSkill5.8kyesterdayApache-2.0A191Claude Code
benchling-integrationsynthetic-sciences/openscienceSkill4.3k2d agoApache-2.0A44Claude Code, Codex
chembl-databasegoogle-deepmind/science-skillsSkill3.4k14d agoApache-2.0A53Claude Code, Codex
nvalchemi-data-storageNVIDIA/nvalchemi-toolkitSkill204yesterdayApache-2.0A90Claude Code