gene-database

gene-database is a skill for Claude Code, Codex from AndyZhuang/Opentest. It costs 49 tokens per session (1,611 once invoked), scanned A, a copy of gene-database, MIT.

A tool for looking up gene information in NCBI Gene, a public database of genes from many organisms. It can return names, reference sequences, locations, functions, pathways, variations, and related phenotypes.

In plain words
What is it for?
Use it to search genes by symbol or ID, retrieve sequences and annotations, study gene functions and pathways, and examine related traits or diseases.
Why use it?
It saves time when collecting gene details from multiple genomic resources and supports both individual and batch lookups. It can also provide sequence and cross-reference information in one workflow.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python scripts/query_gene.py --search "BRCA1" --organism "human".

Good fit Use it to search genes by symbol or ID, retrieve sequences and…

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Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/AndyZhuang/Opentest
agentmods
npx agentmods add skills/andyzhuang/opentest/gene-database

Made for: Claude Code, Codex.

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 gene-database

README.md
[![agentmods](https://agentmods.dev/badge/skills/andyzhuang/opentest/gene-database.svg)](https://agentmods.dev/skills/andyzhuang/opentest/gene-database)
Your own site
<a href="https://agentmods.dev/skills/andyzhuang/opentest/gene-database"><img src="https://agentmods.dev/badge/skills/andyzhuang/opentest/gene-database.svg" alt="Measured on agentmods" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,611 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 89% copy Near-identical to another mod 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 $0.00049 $0.01611
Opus 5 $0.00024 $0.00805
Sonnet 5 $0.00010 $0.00322
Haiku 4.5 $0.00005 $0.00161

Measured 3d ago against content hash d3f95e77c9dd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

gene-database scanned grade A with 0 findings 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 3d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

89% identical to gene-database — 6 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/labclaw/literature/gene-database/SKILL.md · 179 lines

How it starts

The opening of the file, as written. The whole thing — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Gene Database

Overview

NCBI Gene is a comprehensive database integrating gene information from diverse species. It provides nomenclature, reference sequences (RefSeqs), chromosomal maps, biological pathways, genetic variations, phenotypes, and cross-references to global genomic resources.

When to Use This Skill

This skill should be used when working with gene data including searching by gene symbol or ID, retrieving gene sequences and metadata, analyzing gene functions and pathways, or performing batch gene lookups.

Quick Start

NCBI provides two main APIs for gene data access:

  1. E-utilities (Traditional): Full-featured API for all Entrez databases with flexible querying
  2. NCBI Datasets API (Newer): Optimized for gene data retrieval with simplified workflows

Choose E-utilities for complex queries and cross-database searches. Choose Datasets API for straightforward gene data retrieval with metadata and sequences in a single request.

Common Workflows

Search Genes by Symbol or Name

To search for genes by symbol or name across organisms:

  1. Use the scripts/query_gene.py script with E-utilities ESearch
  2. Specify the gene symbol and organism (e.g., "BRCA1 in human")
  3. The script returns matching Gene IDs

Example query patterns:

  • Gene symbol: insulin[gene name] AND human[organism]
  • Gene with disease: dystrophin[gene name] AND muscular dystrophy[disease]
  • Chromosome location: human[organism] AND 17q21[chromosome]

Retrieve Gene Information by ID

To fetch detailed information for known Gene IDs:

  1. Use scripts/fetch_gene_data.py with the Datasets API for comprehensive data
  2. Alternatively, use scripts/query_gene.py with E-utilities EFetch for specific formats
  3. Specify desired output format (JSON, XML, or text)

The Datasets API returns:

  • Gene nomenclature and aliases
  • Reference sequences (RefSeqs) for transcripts and proteins
  • Chromosomal location and mapping
  • Gene Ontology (GO) annotations
  • Associated publications

Read the full file on GitHub · 179 lines

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. 3d ago First seen · 179 lines · 49 tokens per session scan A d3f95e77c9dd

Subscribe to this mod's changes

gene-database is a skill published in the GitHub repository AndyZhuang/Opentest (22 stars, last pushed 5mo ago), licensed MIT. It adds 49 tokens to every session and 1,611 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 89% identical to gene-database, differing in 6 lines, and is treated as a copy.

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