Upstream Regulator Analysis

Upstream Regulator Analysis is a skill for Claude Code, Codex from TianGzlab/OmicsClaw. It costs 5 tokens per session (2,881 once invoked), scanned A, original, Apache-2.0.

A bioinformatics analysis that combines RNA sequencing results with DNA-binding data to identify transcription factors, proteins that help control gene activity, behind observed gene-expression changes.

In plain words
What is it for?
Use it with bulk RNA-seq differential-expression results to rank likely upstream regulators and distinguish possible activators from repressors.
Why use it?
A list of changed genes alone does not show which regulators may have caused the changes. This analysis adds evidence about regulator binding, affected genes, and whether the pattern fits activation or repression.

Skill for Claude CodeCodex

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

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/tiangzlab/omicsclaw/upstream-regulator-analysis
Any agent
npx skills add TianGzlab/OmicsClaw --skill upstream-regulator-analysis
Clone the repo
git clone --depth 1 https://github.com/TianGzlab/OmicsClaw

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 Upstream Regulator Analysis

README.md
[![agentmods](https://agentmods.dev/badge/skills/tiangzlab/omicsclaw/upstream-regulator-analysis.svg)](https://agentmods.dev/skills/tiangzlab/omicsclaw/upstream-regulator-analysis)
Your own site
<a href="https://agentmods.dev/skills/tiangzlab/omicsclaw/upstream-regulator-analysis"><img src="https://agentmods.dev/badge/skills/tiangzlab/omicsclaw/upstream-regulator-analysis.svg" alt="Measured on agentmods" height="20"></a>
Per session 5 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,881 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00005 $0.02881
Opus 5 $0.00003 $0.01440
Sonnet 5 $0.00001 $0.00576
Haiku 4.5 $0.00001 $0.00288

Measured 6d ago against content hash cb1c6b1a8ab5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

Upstream Regulator 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 6d ago.

The scan reads SKILL.md. This mod also ships 8 executable files (scripts/__init__.py, scripts/export_all.py, scripts/generate_all_plots.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.

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.

knowledge_base/upstream-regulator-analysis/SKILL.md · 228 lines

How it starts

The opening of the file, as written. The whole thing — 228 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Upstream Regulator Analysis

Identify transcription factors (TFs) driving observed differential expression by integrating ChIP-Atlas TF binding data (epigenomics) with RNA-seq DE results (transcriptomics). Ranks TFs by a combined regulatory score incorporating binding enrichment, target-DE overlap (Fisher's exact test), and directional concordance (activator vs repressor).

When to Use This Skill

Use when you:

  • Have DE results and want to identify TFs driving expression changes
  • Need to go beyond simple gene list enrichment to mechanistic TF-level evidence
  • Want to distinguish activators (targets upregulated) from repressors (targets downregulated)
  • Want to integrate epigenomics (ChIP-seq) with transcriptomics (RNA-seq) in one analysis

Don't use for:

  • Single-cell DE results (designed for bulk RNA-seq DE)
  • Organisms not in ChIP-Atlas (see supported genomes below)
  • Histone mark analysis (use chip-atlas-peak-enrichment directly)
  • When you only need TF binding enrichment without target gene integration

Requires: Internet access (ChIP-Atlas API + data server). Runtime: 15-25 minutes (API polling + target gene downloads).

Installation

pip install pandas numpy scipy requests matplotlib seaborn reportlab
Package Version License Commercial Use
pandas ≥1.5 BSD-3 ✅ Permitted
numpy ≥1.21 BSD-3 ✅ Permitted
scipy ≥1.9 BSD-3 ✅ Permitted
requests ≥2.28 Apache-2.0 ✅ Permitted
matplotlib ≥3.6 PSF ✅ Permitted
seaborn ≥0.12 BSD-3 ✅ Permitted
reportlab ≥3.6 BSD ✅ Permitted

Sibling skill dependencies: Requires chip-atlas-peak-enrichment and chip-atlas-target-genes directories at the same level.

Inputs

  • DE results CSV/TSV with columns: gene symbol, log2 fold change, adjusted p-value
    • Supports DESeq2 (log2FoldChange, padj), edgeR (logFC, FDR), limma (logFC, adj.P.Val)
    • Column names auto-detected; override with parameters if needed
  • Genome: hg38, hg19, mm10, mm9, rn6, dm6, dm3, ce11, ce10, sacCer3

Read the full file on GitHub · 228 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. 6d ago First seen · 228 lines · 5 tokens per session scan A cb1c6b1a8ab5

Subscribe to this mod's changes

Upstream Regulator Analysis is a skill published in the GitHub repository TianGzlab/OmicsClaw (160 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 5 tokens to every session and 2,881 once invoked, about $0.0000 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.

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