bio-chipseq-super-enhancers

bio-chipseq-super-enhancers is a skill for Claude Code, Codex from PKU-YuanGroup/OpenAI4S. It costs 146 tokens per session (4,435 once invoked), scanned A, a copy of bio-chipseq-super-enhancers, MIT.

A guide for finding super-enhancers: large groups of active DNA regulatory regions linked to cell identity and disease biology.

In plain words
What is it for?
Stitching nearby ChIP-seq peaks, ranking their signal, identifying the ranking break point, and calling regions above it super-enhancers.
Why use it?
It helps distinguish unusually strong regulatory regions from ordinary enhancers and compare them across experimental conditions.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit Stitching nearby ChIP-seq peaks, ranking their signal, identifying the ranking break point, and calling regions above it super-enhancers.

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Install with agentmods
npx agentmods add skills/pku-yuangroup/openai4s/bio-chip-seq-super-enhancers
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 PKU-YuanGroup/OpenAI4S --skill bio-chip-seq-super-enhancers
Clone the repo
git clone --depth 1 https://github.com/PKU-YuanGroup/OpenAI4S

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 bio-chipseq-super-enhancers

README.md
[![agentmods](https://agentmods.dev/badge/skills/pku-yuangroup/openai4s/bio-chip-seq-super-enhancers/github.svg)](https://agentmods.dev/skills/pku-yuangroup/openai4s/bio-chip-seq-super-enhancers)
Your own site
<a href="https://agentmods.dev/skills/pku-yuangroup/openai4s/bio-chip-seq-super-enhancers"><img src="https://agentmods.dev/badge/skills/pku-yuangroup/openai4s/bio-chip-seq-super-enhancers/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 bio-chipseq-super-enhancers

Your own site · 80×15
<a href="https://agentmods.dev/skills/pku-yuangroup/openai4s/bio-chip-seq-super-enhancers"><img src="https://agentmods.dev/badge/skills/pku-yuangroup/openai4s/bio-chip-seq-super-enhancers.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 146 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,435 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 97% 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 $0.00146 $0.04435
Opus 5 $0.00073 $0.02218
Sonnet 5 $0.00029 $0.00887
Haiku 4.5 $0.00015 $0.00443

Measured 9d ago against content hash acf240637c98, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

bio-chipseq-super-enhancers 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 9d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/analyze_super_enhancers.py, scripts/run_rose.sh), 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.

wget https://downloads.wenglab.org/Registry-V4/GRCh38-cCREs.bed
Origin

This is a copy

97% identical to bio-chipseq-super-enhancers — 12 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/bioskills/bio-chip-seq-super-enhancers/SKILL.md · 272 lines

How it starts

The opening of the file, as written. The whole thing — 272 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Version Compatibility

Reference examples tested with: ROSE (stjude/ROSE, 2018+), ROSE2 (linlabbcm/rose2, 2021+), LILY (BoevaLab/LILY, 2020+), HOMER 4.11+, samtools 1.19+, bedtools 2.31+, GenomicRanges 1.54+.

The original Young-lab ROSE is Python 2; ROSE2 (linlabbcm/rose2) and the stjude/ROSE fork are the Python-3 implementations with the same algorithm. For hg38 data use stjude/ROSE (python ROSE_main.py, whose genomeDict includes HG38); rose2's released genomeDict covers only HG18/HG19/MM8/MM9/MM10/RN4/RN6, so rose2 -g HG38 fails. LILY (Boeva 2017) is a refactored implementation with input-control background subtraction for low-quality H3K27ac data.

Super-Enhancer Calling

"Identify super-enhancers driving cell identity / cancer biology" -> Stitch nearby active enhancer peaks (H3K27ac, MED1, or BRD4) within a stitching window, exclude proximal-promoter signal, rank by total signal, find the hockey-stick inflection point where signal sharply increases, and classify all stitched regions above the inflection as super-enhancers.

  • CLI (stjude/ROSE, Python 3): python ROSE_main.py -g HG38 -i peaks.gff -r h3k27ac.bam -c input.bam -s 12500 -t 2500 -o rose_out/
  • CLI (HOMER): findPeaks tag_dir/ -style super -i input_tag_dir/
  • CLI (LILY): variant with input-control background subtraction
  • R (custom hockey-stick): rank enhancers by signal, find tangent-line inflection

The SE concept (Whyte 2013) is a thresholding heuristic on a continuous signal distribution (Pott & Lieb 2015 Nat Genet), not a categorical biological category. Genetic dissection of super-enhancers (Hay 2016; Moorthy 2017) shows constituent elements contribute unequally and many are individually dispensable/redundant; the "SE" label is a useful operational definition for BET-inhibitor responsiveness and cell-identity gene regulation, not an absolute biological property.

Marker Choice: H3K27ac vs MED1 vs BRD4

Marker Captures When to prefer
H3K27ac Active regulatory elements broadly Most widely available; standard for SE definition since Whyte 2013
MED1 Mediator complex accumulation (the defining biology) Direct readout of SE; less common antibody; lower signal-to-noise
BRD4 BET cofactor accumulation Most predictive of BET-inhibitor responsiveness; clinical relevance
H3K27ac + MED1 intersection High-confidence SE Gold standard if both available
dELS from ENCODE cCREs Cell-type-agnostic distal enhancer registry Cross-reference; not SE-specific by itself

Read the full file on GitHub · 272 lines

Files

What ships with it

3 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. 9d ago First seen · 272 lines · 146 tokens per session scan A acf240637c98

Subscribe to this mod's changes

bio-chipseq-super-enhancers is a skill published in the GitHub repository PKU-YuanGroup/OpenAI4S (407 stars, last pushed yesterday), licensed MIT. It adds 146 tokens to every session and 4,435 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). It is 97% identical to bio-chipseq-super-enhancers, differing in 12 lines, and is treated as a copy.

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