bio-splicing-qc

bio-splicing-qc is a skill for Claude Code, Codex from PKU-YuanGroup/OpenAI4S. It costs 165 tokens per session (6,646 once invoked), scanned A, a copy of bio-splicing-qc, MIT.

A quality-checking skill for RNA sequencing data used to study alternative splicing, where cells choose different versions of an RNA message. It examines the experiment, read alignment, and splice-junction evidence.

In plain words
What is it for?
Use it to review library design, align reads, measure junction discovery and saturation, and diagnose whether the data are suitable for splicing analysis.
Why use it?
It helps find design, sequencing, or alignment problems that can produce unreliable splicing measurements or false reports of new splice junctions.

Skill for Claude CodeCodex

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

Good fit Use it to review library design, align reads, measure junction discovery and saturation, and diagnose whether the data are suitable for splicing analysis.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/pku-yuangroup/openai4s/bio-alternative-splicing-splicing-qc
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-alternative-splicing-splicing-qc
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-splicing-qc

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/pku-yuangroup/openai4s/bio-alternative-splicing-splicing-qc"><img src="https://agentmods.dev/badge/skills/pku-yuangroup/openai4s/bio-alternative-splicing-splicing-qc.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 165 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,646 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 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 $0.00165 $0.06646
Opus 5 $0.00082 $0.03323
Sonnet 5 $0.00033 $0.01329
Haiku 4.5 $0.00016 $0.00665

Measured 13d ago against content hash 5b99c1f32353, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

bio-splicing-qc 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 13d ago.

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

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

subprocess.run([
Origin

This is a copy

95% identical to bio-splicing-qc — 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-alternative-splicing-splicing-qc/SKILL.md · 489 lines

How it starts

The opening of the file, as written. The whole thing — 489 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Version Compatibility

Reference examples tested with: RSeQC 5.0+, STAR 2.7.11+, samtools 1.19+, pysam 0.22+, regtools 1.0+, maxentpy 0.0.1+, spliceai 1.3+, matplotlib 3.8+, pandas 2.2+

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

  • Python: pip show <package> then help(module.function) to check signatures
  • CLI: <tool> --version then <tool> --help to confirm flags

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

Splicing-Specific Quality Control

Splicing analysis is more demanding than DGE on read length, depth, library prep, alignment strategy, and annotation choice. Failures in any of these silently bias PSI estimates and inflate novel-junction false positives. The decision sequence is: experimental design -> library prep -> alignment strategy -> annotation -> diagnostic metrics. Each layer's failure mode is distinct.

QC Layer Taxonomy

Layer Target Tool Fails when
Experimental design Read length, depth, replicates, library type Pre-sequencing review <PE 75nt; n<3 vs n<3; <30M reads/sample
Library prep poly(A) vs rRNA depletion Pre-sequencing review poly(A) library used for IR analysis
Alignment STAR 2-pass cohort-style STAR 1-pass loses 14% novel junctions; per-sample 2-pass introduces inconsistency
Junction discovery Saturation, novelty RSeQC junction_saturation, junction_annotation Curve still rising = under-sequenced; novel% >40% suggests biology or artifact
Strand specificity Library protocol consistency RSeQC infer_experiment Wrong --libType halves usable junctions
Splice site strength Cryptic vs canonical MaxEntScan, SpliceAI Weak splice sites (MaxEnt<5) may indicate cryptic, regulated, or annotation error
Junction overhang Read-junction support quality pysam CIGAR parsing Overhang <8nt = high false-positive rate
Contamination rRNA, adapters fastq_screen >20% rRNA in "depleted" library = failed depletion
Annotation GENCODE basic vs comprehensive Annotation choice Basic for canonical events; comprehensive for DTU

Read the full file on GitHub · 489 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. 13d ago First seen · 489 lines · 165 tokens per session scan A 5b99c1f32353

Subscribe to this mod's changes

bio-splicing-qc is a skill published in the GitHub repository PKU-YuanGroup/OpenAI4S (407 stars, last pushed yesterday), licensed MIT. It adds 165 tokens to every session and 6,646 once invoked, about $0.0008 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). It is 95% identical to bio-splicing-qc, differing in 12 lines, and is treated as a copy.

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