bio-copy-number-recurrent-cnv

bio-copy-number-recurrent-cnv is a skill for Claude Code, Codex from PKU-YuanGroup/OpenAI4S. It costs 138 tokens per session (3,044 once invoked), scanned A, a copy of bio-copy-number-recurrent-cnv, MIT.

A cohort-level analysis workflow for finding copy-number changes that recur across many tumours. Copy-number changes are gains or losses of DNA regions, and recurring events may point to genes that help drive cancer.

In plain words
What is it for?
Use it to analyse focal and chromosome-arm-level copy-number events, find recurrent driver regions, and measure broader copy-number patterns known as signatures.
Why use it?
It helps separate likely cancer-driving alterations from changes that appear by chance in individual tumours.

Skill for Claude CodeCodex

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

Good fit Use it to analyse focal and chromosome-arm-level copy-number events, find recurrent driver regions, and measure broader copy-number patterns known as signatures.

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Install with agentmods
npx agentmods add skills/pku-yuangroup/openai4s/bio-copy-number-recurrent-cnv
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-copy-number-recurrent-cnv
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-copy-number-recurrent-cnv

README.md
[![agentmods](https://agentmods.dev/badge/skills/pku-yuangroup/openai4s/bio-copy-number-recurrent-cnv/github.svg)](https://agentmods.dev/skills/pku-yuangroup/openai4s/bio-copy-number-recurrent-cnv)
Your own site
<a href="https://agentmods.dev/skills/pku-yuangroup/openai4s/bio-copy-number-recurrent-cnv"><img src="https://agentmods.dev/badge/skills/pku-yuangroup/openai4s/bio-copy-number-recurrent-cnv/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-copy-number-recurrent-cnv

Your own site · 80×15
<a href="https://agentmods.dev/skills/pku-yuangroup/openai4s/bio-copy-number-recurrent-cnv"><img src="https://agentmods.dev/badge/skills/pku-yuangroup/openai4s/bio-copy-number-recurrent-cnv.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 138 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,044 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 95% 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 $0.00138 $0.03044
Opus 5 $0.00069 $0.01522
Sonnet 5 $0.00028 $0.00609
Haiku 4.5 $0.00014 $0.00304

Measured 9d ago against content hash 410274d7c517, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

bio-copy-number-recurrent-cnv 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 9d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/run_gistic2.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.

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

95% identical to bio-copy-number-recurrent-cnv — 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-copy-number-recurrent-cnv/SKILL.md · 193 lines

How it starts

The opening of the file, as written. The whole thing — 193 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Version Compatibility

Reference examples tested with: GISTIC 2.0.23, R 4.3+ with CINSignatureQuantification 1.2+; Python 3.10+ with SigProfilerAssignment 0.1+ (optional, COSMIC CN signatures).

Before using code patterns, verify installed versions match. If versions differ:

  • CLI: gistic2 --help (GISTIC 2.0 is a MATLAB-compiled binary; needs the MCR runtime)
  • R: packageVersion('CINSignatureQuantification')
  • Python: pip show SigProfilerAssignment

GISTIC 2.0 has had no substantive release since ~2017; it is effectively frozen. It runs as a compiled binary against the MATLAB Compiler Runtime — there is no R or Python package. Verify the reference (-refgene) .mat file matches the genome build.

Recurrent and Driver Copy Number Alteration

"Which copy number changes recur across my cohort, and which gene is the driver" -> A CNV in one tumor is an observation; a CNV recurring across many tumors beyond chance is evidence of selection. GISTIC2 separates recurrent driver events from passengers by modeling a background rate and scoring each locus by how often, and how strongly, it is altered. Copy-number signatures decompose the genome-wide pattern of alterations into the mutational processes that generated them.

  • CLI: gistic2 — cohort-level recurrence, focal vs broad, driver localization
  • R: CINSignatureQuantification (Drews 2022); Python SigProfilerAssignment (Steele 2022 COSMIC)

How GISTIC2 Works — and Its Limits

GISTIC2 scores each genomic marker with a G-score = frequency of alteration x mean amplitude, separately for amplifications and deletions. Significance (q-value) comes from permuting events along the genome under the null that all are passengers. Ziggurat deconstruction decomposes each sample's profile into the additive arm-level and focal events that produced it, so the background rate is estimated separately for broad and focal alterations — without this, ubiquitous arm-level events swamp the focal signal. A peel-off procedure removes the contribution of each significant peak before testing the next, so one strong driver does not mask its neighbors.

Read the full file on GitHub · 193 lines

Files

What ships with it

2 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 · 193 lines · 138 tokens per session scan A 410274d7c517

Subscribe to this mod's changes

bio-copy-number-recurrent-cnv is a skill published in the GitHub repository PKU-YuanGroup/OpenAI4S (407 stars, last pushed yesterday), licensed MIT. It adds 138 tokens to every session and 3,044 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to bio-copy-number-recurrent-cnv, differing in 12 lines, and is treated as a copy.

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