bio-causal-genomics-transcriptome-wide-association

bio-causal-genomics-transcriptome-wide-association is a skill for Claude Code, Codex from PKU-YuanGroup/OpenAI4S. It costs 168 tokens per session (11,505 once invoked), scanned A, a copy of bio-causal-genomics-transcriptome-wide-association, MIT.

A bioinformatics workflow for linking genetic variants from genome-wide association studies to gene activity in specific tissues. It uses transcriptome-wide association methods and fine-mapping tools to identify genes that may explain genetic signals.

In plain words
What is it for?
Use it to analyse GWAS summary statistics, test gene-level associations using predicted tissue expression, prioritise candidate genes, and perform probabilistic fine-mapping.
Why use it?
It helps turn large lists of genetic associations into a more focused set of candidate genes and possible causal signals. This reduces the need to run each analysis method separately.

Skill for Claude CodeCodex

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

Good fit Use it to analyse GWAS summary statistics, test gene-level associations using predicted tissue expression, prioritise candidate genes, and perform probabilistic fine-mapping.

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Install with agentmods
npx agentmods add skills/pku-yuangroup/openai4s/bio-causal-genomics-transcriptome-wide-association
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-causal-genomics-transcriptome-wide-association
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-causal-genomics-transcriptome-wide-association

README.md
[![agentmods](https://agentmods.dev/badge/skills/pku-yuangroup/openai4s/bio-causal-genomics-transcriptome-wide-association/github.svg)](https://agentmods.dev/skills/pku-yuangroup/openai4s/bio-causal-genomics-transcriptome-wide-association)
Your own site
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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.

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Your own site · 80×15
<a href="https://agentmods.dev/skills/pku-yuangroup/openai4s/bio-causal-genomics-transcriptome-wide-association"><img src="https://agentmods.dev/badge/skills/pku-yuangroup/openai4s/bio-causal-genomics-transcriptome-wide-association.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 168 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 11,505 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 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 $0.00168 $0.11505
Opus 5 $0.00084 $0.05752
Sonnet 5 $0.00034 $0.02301
Haiku 4.5 $0.00017 $0.01150

Measured 13d ago against content hash 0a032ddd49e2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

bio-causal-genomics-transcriptome-wide-association 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.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/focus_finemap.sh, scripts/s_predixcan_pipeline.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

97% identical to bio-causal-genomics-transcriptome-wide-association — 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-causal-genomics-transcriptome-wide-association/SKILL.md · 472 lines

How it starts

The opening of the file, as written. The whole thing — 472 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Version Compatibility

Reference examples tested with: FUSION (head of gusevlab/fusion_twas, scripts dated 2023+), MetaXcan / S-PrediXcan / S-MultiXcan 0.7.5+ (hakyimlab/MetaXcan), PrediXcan model files from PredictDB (GTEx v8 elastic-net + MASHR), UTMOST (head of Joker-Jerome/UTMOST), pyfocus 0.8+ (bogdanlab/focus), MA-FOCUS (head of mancusolab/ma-focus), TIGAR-V2 (head of yanglab-emory/TIGAR), PLINK 1.9 + PLINK 2.0, R 4.3+, Python 3.9-3.11.

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

  • R: Rscript --version; for FUSION scripts inspect --help flags directly in the source
  • Python: pip show pyfocus (MetaXcan is git-cloned, not on PyPI) then SPrediXcan.py --help, SMulTiXcan.py --help, focus finemap --help
  • CLI: plink2 --version; FUSION ships as R scripts not a binary

If a script throws an error about an argument that has moved (e.g. --gwas_file vs --gwas-file) or a model database schema change, introspect the installed script with --help and adapt rather than retrying. PredictDB model file paths change with GTEx version; pin the version explicitly in scripts.

Transcriptome-Wide Association

"Find genes whose predicted tissue expression is associated with my GWAS trait" -> Train SNP -> expression prediction models on a reference eQTL panel, apply the per-gene SNP weights to GWAS summary statistics or genotypes, and produce a gene-level Z-score equivalent to a weighted sum of SNP Z-scores. The output is a gene-by-tissue association, but TWAS is NOT direct evidence of causal mediation: an LD-tagged eQTL signal produces the same statistical association as a truly causal one, and the dominant failure modes are LD-induced false positives at gene-dense loci, tissue mis-specification, and ancestry mismatch between GWAS and prediction weights.

  • CLI (sumstat TWAS, R): FUSION.assoc_test.R --sumstats g.sumstats --weights weights.pos --weights_dir wgt/ --ref_ld_chr 1KG/EUR. --chr 22 --out chr22.dat
  • CLI (S-PrediXcan, Python): SPrediXcan.py --model_db_path gtex_v8.db --covariance gtex_v8.cov --gwas_file g.txt --output_file out.csv
  • CLI (S-MultiXcan joint): SMulTiXcan.py --models_folder mashr_models/ --gwas_folder gwas/ --metaxcan_folder spredixcan_per_tissue/ --output joint.csv
  • CLI (UTMOST cross-tissue): joint test across tissues via UTMOST's per-tissue GBJ / GBJ2 step
  • CLI (FOCUS fine-mapping): focus finemap gwas.sumstats 1KG_EUR focus.db --chr 22 --p-threshold 5e-8 --out chr22.focus
  • CLI (MA-FOCUS multi-ancestry): focus finemap with colon-separated per-ancestry sumstats / LD / weights and hyphen-joined ancestry codes in --locations (e.g. 38:EUR-EAS-AFR)

Read the full file on GitHub · 472 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. 13d ago First seen · 472 lines · 168 tokens per session scan A 0a032ddd49e2

Subscribe to this mod's changes

bio-causal-genomics-transcriptome-wide-association is a skill published in the GitHub repository PKU-YuanGroup/OpenAI4S (407 stars, last pushed yesterday), licensed MIT. It adds 168 tokens to every session and 11,505 once invoked, about $0.0008 per session on Opus 5. A static security scan graded it A with 0 findings. It is 97% identical to bio-causal-genomics-transcriptome-wide-association, differing in 12 lines, and is treated as a copy.

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