bio-long-read-splicing

bio-long-read-splicing is a skill for Claude Code, Codex from GPTomics/bioSkills. It costs 0 tokens per session (6,518 once invoked), scanned A, original, MIT.

A toolkit for analyzing full-length RNA molecules from PacBio or Oxford Nanopore long-read sequencing. It finds and measures complete transcript forms, including complex combinations of exons.

In plain words
What is it for?
Use it to discover, correct, quantify, and compare transcript isoforms, including microexons, complex multi-exon forms, and novel transcripts.
Why use it?
Short sequencing reads can make it difficult to tell which exons belong to the same transcript. Long reads provide a more complete view of each isoform.

Skill for Claude CodeCodex

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

Good fit Use it to discover, correct, quantify, and compare transcript isoforms, including microexons, complex multi-exon forms, and novel transcripts.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/gptomics/bioskills/long-read-splicing
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 GPTomics/bioSkills --skill long-read-splicing
Clone the repo
git clone --depth 1 https://github.com/GPTomics/bioSkills

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-long-read-splicing

README.md
[![agentmods](https://agentmods.dev/badge/skills/gptomics/bioskills/long-read-splicing.svg)](https://agentmods.dev/skills/gptomics/bioskills/long-read-splicing)
Your own site
<a href="https://agentmods.dev/skills/gptomics/bioskills/long-read-splicing"><img src="https://agentmods.dev/badge/skills/gptomics/bioskills/long-read-splicing.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,518 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 original No closer match found 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 $0.00000 $0.06518
Opus 5 $0.00000 $0.03259
Sonnet 5 $0.00000 $0.01304
Haiku 4.5 $0.00000 $0.00652

Measured 8d ago against content hash b812e8fdb70a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

bio-long-read-splicing 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 8d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (examples/longread_splicing_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

Copies of this mod

1 near-identical copy found in the catalogue:

alternative-splicing/long-read-splicing/SKILL.md · 488 lines

How it starts

The opening of the file, as written. The whole thing — 488 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Version Compatibility

Reference examples tested with: FLAIR 2.0+, IsoQuant 3.5+, Bambu 3.4+, SQANTI3 5.4+, minimap2 2.26+, samtools 1.19+, rMATS-long 0.2+, IsoSeq3 4.0+

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

  • Python: pip show <package> then help(module.function) to check signatures
  • R: packageVersion('<pkg>') then ?function_name to verify parameters
  • 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.

Long-Read Splicing Analysis

Full-length long-read sequencing solves problems that short-read AS cannot: anchor-length-limited microexon detection, complex multi-exon isoform deconvolution, recursive splicing in long introns, and transcript-quantification uncertainty in DTU. The 2024-2026 transition: long-read is becoming the splicing default for high-resolution analysis.

When Long-Read Wins

Question Why long-read wins
Microexon detection (3-27 nt) Reads span the microexon entirely; no aligner anchor problem
Long-intron recursive splicing Can detect ratchet point usage (Sibley 2015 Nature)
Complex isoform deconvolution (TTN, MAPT, NEFM) Single read per isoform avoids EM ambiguity
DTU without quantification uncertainty Transcript identity is read-level, not inferred
Novel transcript discovery No annotation dependence
Phasing splicing with SNVs Allele-resolved isoforms
Single-cell full-length isoforms MAS-Iso-seq + 10X 5' is the practical SOTA
Cryptic splicing in TDP-43 ALS Full-length reads confirm cryptic exon inclusion in target transcripts

Platform Selection Matrix

Platform Throughput Accuracy (modal) Best for Fails when
PacBio Revio HiFi (Iso-Seq) ~25M reads / SMRT cell Q30+ (CCS) Bulk transcript discovery; gold standard Cost prohibitive for very large cohorts
PacBio Kinnex / MAS-Iso-seq ~16x Iso-Seq via concatemer Q30+ High-throughput single-cell long-read Kinnex de-array (skera) is an extra step
ONT direct cDNA (R10.4.1, PCS-114) Millions / flowcell ~98% simplex, ~99% duplex Cost-effective; throughput Minor higher error than HiFi
ONT direct RNA (RNA004, 2024+) ~30M reads ~96-98% Native modifications (m6A, pseudo-U); no RT bias Lower throughput; higher input
ONT pre-R10 (R9.4.1) Same as R10 ~85-90% Legacy data Pre-R10 not recommended for splicing analysis (false novel junctions)

Read the full file on GitHub · 488 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. 8d ago First seen · 488 lines · 0 tokens per session scan A b812e8fdb70a

Subscribe to this mod's changes

bio-long-read-splicing is a skill published in the GitHub repository GPTomics/bioSkills (1,199 stars, last pushed 23d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 6,518 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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