deg-screening-analysis

deg-screening-analysis is a skill for Claude Code, Codex from aipoch/medical-research-skills. It costs 96 tokens per session (1,975 once invoked), scanned A, original, MIT.

A workflow that compares gene activity between two groups in bulk expression data, such as treated and untreated samples. It produces tables of differentially expressed genes, a volcano plot, and a clustered heatmap.

In plain words
What is it for?
Use it for a two-group case-versus-control comparison on a normalized expression matrix and to export filtered gene lists and plots.
Why use it?
It identifies genes whose measured activity differs between the selected groups and presents the results in both tables and visual summaries.

Skill for Claude CodeCodex

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

Good fit Use it for a two-group case-versus-control comparison on a normalized expression matrix and to export filtered gene lists and plots.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aipoch/medical-research-skills/deg-screening-analysis
About the project

Medical Research Agent Skills is a library of agent instructions for medical and biomedical research, covering evidence analysis, study protocol design, data analysis, and academic writing. Researchers use it to guide compatible coding agents through common scientific workflows. The catalogue contains many of the library's skills and commands.

aipoch/medical-research-skills · 1,860 stars · on GitHub · aipoch.com

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 aipoch/medical-research-skills --skill deg-screening-analysis
Clone the repo
git clone --depth 1 https://github.com/aipoch/medical-research-skills

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 deg-screening-analysis

README.md
[![agentmods](https://agentmods.dev/badge/skills/aipoch/medical-research-skills/deg-screening-analysis/github.svg)](https://agentmods.dev/skills/aipoch/medical-research-skills/deg-screening-analysis)
Your own site
<a href="https://agentmods.dev/skills/aipoch/medical-research-skills/deg-screening-analysis"><img src="https://agentmods.dev/badge/skills/aipoch/medical-research-skills/deg-screening-analysis/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 deg-screening-analysis

Your own site · 80×15
<a href="https://agentmods.dev/skills/aipoch/medical-research-skills/deg-screening-analysis"><img src="https://agentmods.dev/badge/skills/aipoch/medical-research-skills/deg-screening-analysis.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 96 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,975 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original 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 $0.00096 $0.01975
Opus 5 $0.00048 $0.00988
Sonnet 5 $0.00019 $0.00395
Haiku 4.5 $0.00010 $0.00198

Measured 13d ago against content hash 6c396523fd87, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

deg-screening-analysis 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 13d 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.

awesome-med-research-skills/Data Analysis/deg-screening-analysis/SKILL.md · 160 lines

How it starts

The opening of the file, as written. The whole thing — 160 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Source: https://github.com/aipoch/medical-research-skills

Differential Expression Gene Screening Analysis (Volcano Plot & Clustered Heatmap)

When to Use

Use this skill when you need a reproducible two-group DEG workflow on a bulk expression matrix and want:

  • a full differential expression table
  • a filtered DEG table
  • a volcano plot
  • a clustered heatmap of top differential genes

Typical requests include:

  • compare case vs control samples with limma
  • screen upregulated and downregulated genes from a normalized expression matrix
  • generate a DEG table with volcano and heatmap outputs from bulk transcriptome data

Out of Scope

Do not use this skill for:

  • single-cell RNA-seq workflows
  • multi-group contrasts or factorial designs
  • count-model pipelines that require DESeq2 or edgeR
  • batch correction, covariate-adjusted models, or generalized design-matrix consulting
  • non-expression omics data

If the request falls outside this scope, stop and hand off to a more appropriate analysis workflow instead of forcing the data through this skill.

Practical Caveats

  • Diffanalysis.csv currently exports name, logFC, P.value, and P.adj.
  • --p_type controls both DEG screening semantics and volcano plot significance semantics.
  • plot/heatmap.pdf is generated only when at least two heatmap genes remain after ranking.
  • When the result is very sparse, prefer keeping tables and volcano output as the primary artifacts.

When to Read External Files

Situation File to Read Purpose
Need algorithm details or statistical assumptions references/algorithm.md limma method, filtering logic, volcano/heatmap selection rules
Need to execute the workflow scripts/main.R Get the exact CLI entry and runnable command
Encounter an error code or bad input format references/troubleshooting.md Match SKILL_* errors to causes and fixes
Need more CLI examples references/cli-guide.md See complete command examples for common use cases
Need a minimal runnable example tests/data/ Use bundled test input files for validation

Read the full file on GitHub · 160 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. 13d ago First seen · 160 lines · 96 tokens per session scan A 6c396523fd87

Subscribe to this mod's changes

deg-screening-analysis is a skill published in the GitHub repository aipoch/medical-research-skills (1,860 stars, last pushed 1mo ago), licensed MIT. It adds 96 tokens to every session and 1,975 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other skills, from other repositories