bio-atac-seq-deep-learning-atac

bio-atac-seq-deep-learning-atac is a skill for Claude Code, Codex from GPTomics/bioSkills. It costs 104 tokens per session (4,939 once invoked), scanned A, original, MIT.

Deep-learning methods that read DNA sequences and predict where chromatin is accessible, including the pattern of activity at individual DNA bases. ATAC-seq measures accessible chromatin, and these models can also estimate how a DNA variant may change that signal.

In plain words
What is it for?
Use it to predict accessibility profiles, score the possible effect of GWAS or rare variants, correct Tn5 bias, and extract candidate DNA-binding motifs from model explanations.
Why use it?
It helps model sequence effects and reduce errors caused by Tn5, the enzyme used in ATAC-seq, preferring some DNA sequences over others. It also provides sequence-based evidence for interpreting variants and DNA-binding motifs.

Skill for Claude CodeCodex

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

Not installable on its own: it runs a file from its repository that does not travel with it. Clone the repository, or install whatever ships that file. The line is python variant-scorer/src/variant_scoring.py \.

Install

Getting it into your agent

There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.

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-atac-seq-deep-learning-atac

README.md
[![agentmods](https://agentmods.dev/badge/skills/gptomics/bioskills/deep-learning-atac.svg)](https://agentmods.dev/skills/gptomics/bioskills/deep-learning-atac)
Your own site
<a href="https://agentmods.dev/skills/gptomics/bioskills/deep-learning-atac"><img src="https://agentmods.dev/badge/skills/gptomics/bioskills/deep-learning-atac.svg" alt="Measured on agentmods" height="20"></a>
Per session 104 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,939 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00104 $0.04939
Opus 5 $0.00052 $0.02469
Sonnet 5 $0.00021 $0.00988
Haiku 4.5 $0.00010 $0.00494

Measured 6d ago against content hash da8b6ac8edb7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

bio-atac-seq-deep-learning-atac 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 6d ago.

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

atac-seq/deep-learning-atac/SKILL.md · 295 lines

How it starts

The opening of the file, as written. The whole thing — 295 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Version Compatibility

Reference examples tested with: chrombpnet 0.1.7+, bpnet-lite 0.6+ (github.com/jmschrei/bpnet-lite), scBasset 0.1.0+ (basenji2 fork), tangermeme 0.1+, tfmodisco-lite 2.2+, DeepLIFT 0.6+, captum 0.7+, tensorflow 2.13+, pytorch 2.1+, kipoi 0.8+.

Verify before use:

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

If code throws unexpected errors, introspect the installed package and adapt rather than retrying. Deep-learning tooling evolves rapidly; method papers post 2023 may have superseded reference implementations.

Sequence-Based Deep Learning for ATAC-seq

"Score the effect of a GWAS SNP on chromatin accessibility" -> Train (or use pre-trained) sequence-to-accessibility CNNs that take 1-5 kb DNA windows and predict per-base Tn5 cleavage profiles. Outputs include: bias-corrected accessibility, single-base mutation effect predictions, and DeepLIFT contribution scores convertible to motifs via TF-MoDISco.

  • CLI: chrombpnet pipeline --bigwig signal.bw --bigwig-bias bias.bw ...
  • Python: bpnet-lite for custom architectures; tangermeme for fast scoring
  • Python (single-cell): scBasset for per-cell sequence-based predictions
  • Python (long-context): Enformer pre-trained models via Kipoi

Sequence models are NOT a replacement for MACS+TOBIAS at every step. They excel at three specific tasks where classical pipelines struggle: (1) Tn5 bias correction in low-complexity sequence contexts, (2) variant effect prediction in non-genic regions, (3) cell-type-specific motif discovery beyond what JASPAR provides.

Algorithmic Taxonomy

Tool Architecture Training Output Strength Fails when
chromBPNet (Pampari 2024 bioRxiv) Two-track CNN: bias model + accessibility model; bias trained on naked-DNA control or k-mer baseline, accessibility trained on chromatin signal Per-cell-type, paired bias track Bias-corrected per-base profile + total counts Strongest bias correction of the compared tools; established in Kundaje lab pipelines Requires GPU, ~24h training per cell type; needs >= 50M reads
BPNet (Avsec 2021 Nat Genet 53:354) Original counts + profile dual-head CNN TF ChIP-seq or ATAC Per-base profile prediction Foundational; widely cited; bpnet-lite reimpl maintained Less polished than chromBPNet for ATAC; bias correction needs separate model
scBasset (Yuan & Kelley 2022) Basenji2-derived CNN, per-cell projection layer Single-cell ATAC Per-cell sequence-derived peak score First sequence model that predicts per-cell accessibility; outperforms chromVAR for cluster discrimination Fixed architecture, hard to extend; benchmarks evolving
Enformer (Avsec 2021 Nat Methods 18:1196) Long-context Transformer (196 kb input) Reference epigenome (DNase + histones + CAGE) Per-bin epigenome prediction Best for distal regulation modeling; pre-trained available Pre-trained models cell-line specific; finetuning on custom data is expensive
Borzoi (Linder 2025 Nat Genet) Enformer extension trained on RNA + ATAC Multi-tissue paired data Sequence -> RNA + chromatin Current best benchmark for variant effect on RNA via ATAC linkage Newer; benchmarks still emerging
DeepATAC / Basset (legacy) Earlier CNN architectures -- Binary peak prediction Historical context; cited in older literature Superseded by chromBPNet + Enformer; do not use for new work
tangermeme Inference-only fast wrapper Use any saved model Marginal scoring of variants Speeds up variant effect prediction 100x; works with chromBPNet/BPNet outputs Inference only; cannot train

Read the full file on GitHub · 295 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. 6d ago First seen · 295 lines · 104 tokens per session scan A da8b6ac8edb7

Subscribe to this mod's changes

bio-atac-seq-deep-learning-atac is a skill published in the GitHub repository GPTomics/bioSkills (1,199 stars, last pushed 21d ago), licensed MIT. It adds 104 tokens to every session and 4,939 once invoked, about $0.0005 per session on Opus 5. 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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