nextflow-development

A workflow for running nf-core bioinformatics pipelines with Nextflow, a tool for connecting and repeating analysis steps. It covers sequencing data such as RNA-seq, whole-genome or exome sequencing, and ATAC-seq.

In plain words
What is it for?
Use it to analyse FASTQ files, study gene expression, call genetic variants, analyse chromatin accessibility, or reanalyse data from GEO and SRA.
Why use it?
It helps turn raw sequencing files or public datasets into reproducible analysis results using established pipelines.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/anthropics/life-sciences/nextflow-development
Any agent
npx skills add anthropics/life-sciences --skill nextflow-development
Clone the repo
git clone --depth 1 https://github.com/anthropics/life-sciences

Made for: Claude Code, Codex.

Per session 95 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,354 The whole file, excluding the scripts and references it only reads on demand.
Security scan D 3 findings. Scan, not verified.
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 $0.00095 $0.02354
Opus 5 $0.00048 $0.01177
Sonnet 5 $0.00019 $0.00471
Haiku 4.5 $0.00010 $0.00235

Measured 2d ago against content hash f30017df5d49, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade D, and why

nextflow-development scanned grade D with 3 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 2d ago.

The scan reads SKILL.md. This mod also ships 10 executable files (scripts/check_environment.py, scripts/detect_data_type.py, scripts/generate_samplesheet.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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

| Permission denied | `sudo usermod -aG docker $USER` then re-login |

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

| Not installed | `curl -s https://get.nextflow.io \| bash && mv nextflow ~/bin/` |

Makes network callslowCapability

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

| Not installed | `curl -s https://get.nextflow.io \| bash && mv nextflow ~/bin/` |
nextflow-development/SKILL.md · 291 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

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. 2d ago First seen · 291 lines · 95 tokens per session scan D f30017df5d49

Subscribe to this mod's changes

nextflow-development is a skill published in the GitHub repository anthropics/life-sciences (585 stars, last pushed 18d ago), with no licence file. It adds 95 tokens to every session and 2,354 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it D with 3 findings (asks for root, downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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