bio-crispr-screens-jacks-analysis SKILL.md skillA

bio-crispr-screens-jacks-analysis from pku-yuangroup/openai4s is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add pku-yuangroup/openai4s/bio-crispr-screens-jacks-analysis@git:20260821.2d1b678

Pins git:20260821.2d1b678 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
pku-yuangroup/openai4s
Path
skills/bioskills/bio-crispr-screens-jacks-analysis/SKILL.md
Versions recorded
1
Latest version
git:20260821.2d1b678, committed Aug 21, 2026
Size
17,838 bytes
Repository stars
662
License
MIT

Runs JACKS (Joint Analysis of CRISPR/Cas9 Knockout Screens; Allen et al 2019 Genome Research) which models per-sgRNA log-fold-change as the product of a treatment-dependent gene-essentiality term and a treatment-independent guide-efficacy term. Covers the Bayesian decomposition math, the hierarchical efficacy prior shared across screens performed with the same library, when JACKS outperforms MAGeCK (multi-screen joint analysis, libraries with broad efficacy variance) and when it does not…

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

## Version Compatibility

Reference examples tested with: JACKS 0.2.0+ (felicityallen/JACKS), pandas 2.2+, numpy 1.26+, scipy 1.12+, matplotlib 3.8+.

Before using code patterns, verify installed versions match. If versions differ:
- CLI: `python run_JACKS.py --help` (run_JACKS.py at the JACKS repo root after clone)
- Python: from jacks.jacks_io import runJACKS; help(runJACKS)
- GitHub: install via `git clone https://github.com/felicityallen/JACKS && cd JACKS && pip install .`

If code throws ImportError, AttributeError, or TypeError, introspect the installed package and adapt the example to match the actual API rather than retrying.

## JACKS CRISPR Screen Analysis

**"Analyze CRISPR screens with guide-level efficacy modeling"** -> Jointly model per-sgRNA log-fold-change across one or more screens as the product of gene essentiality and guide efficacy, sharing efficacy across screens with the same library so that low-quality guides are down-weighted automatically.

- CLI: `python run_JACKS.py countfile replicatefile guidemappingfile [options]` (script at JACKS repo root)
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add pku-yuangroup/openai4s/bio-crispr-screens-jacks-analysis@sha256:488557487f019de3

The line at the top of this page pins the label git:20260821.2d1b678, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_zu5qvcrjyze5e7hy.svg)](https://markdownregistry.com/a/art_zu5qvcrjyze5e7hy)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Aug 21, 2026.

versioncommittedcommitsizeaudit
git:20260821.2d1b678 latest2026-08-21 2d1b678 17,838 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (17838 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

pku-yuangroup/openai4s · 662 stars · license MIT · pushed 2026-11-03 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_zu5qvcrjyze5e7hy
GET https://markdownregistry.com/api/v1/resolve?ref=pku-yuangroup/openai4s/bio-crispr-screens-jacks-analysis
GET https://markdownregistry.com/api/v1/blob/488557487f019de31ec6a830b411fe0ab58cb1f9461c88f4562e8e44bd5d4c08

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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