hic-map-format-validation

hic-map-format-validation is a skill for Claude Code, Codex from HolobiomicsLab/asb-skill-collections. It costs 33 tokens per session (1,502 once invoked), scanned A, original, Apache-2.0.

A validation step for .hic files, binary files that store Hi-C contact maps showing how parts of a genome interact. It checks the file format and compares a reference checksum, a value used to detect changes or corruption.

In plain words
What is it for?
Use it after the ENCODE Hi-C pipeline or Juicer creates a .hic file from sequencing data.
Why use it?
It helps confirm that a Hi-C processing pipeline produced an intact, reproducible output file. This is useful before quality checks, submissions, or shared analysis.

Skill for Claude CodeCodex

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

Good fit Use it after the ENCODE Hi-C pipeline or Juicer creates a .hic file from sequencing data.

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Install with agentmods
npx agentmods add skills/holobiomicslab/asb-skill-collections/hic-map-format-validation
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 HolobiomicsLab/asb-skill-collections --skill hic-map-format-validation
Clone the repo
git clone --depth 1 https://github.com/HolobiomicsLab/asb-skill-collections

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 hic-map-format-validation

README.md
[![agentmods](https://agentmods.dev/badge/skills/holobiomicslab/asb-skill-collections/hic-map-format-validation/github.svg)](https://agentmods.dev/skills/holobiomicslab/asb-skill-collections/hic-map-format-validation)
Your own site
<a href="https://agentmods.dev/skills/holobiomicslab/asb-skill-collections/hic-map-format-validation"><img src="https://agentmods.dev/badge/skills/holobiomicslab/asb-skill-collections/hic-map-format-validation/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 hic-map-format-validation

Your own site · 80×15
<a href="https://agentmods.dev/skills/holobiomicslab/asb-skill-collections/hic-map-format-validation"><img src="https://agentmods.dev/badge/skills/holobiomicslab/asb-skill-collections/hic-map-format-validation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,502 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00033 $0.01502
Opus 5 $0.00016 $0.00751
Sonnet 5 $0.00007 $0.00300
Haiku 4.5 $0.00003 $0.00150

Measured 9d ago against content hash addcec854a63, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

hic-map-format-validation 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 9d ago.

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.

collections/epigenomics/v1/skills/hic-map-format-validation/SKILL.md · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.

hic-map-format-validation

Summary

Validate Hi-C contact map output files against format specifications and reference checksums to confirm pipeline reproducibility and data integrity. This skill verifies that .hic binary format files produced by Hi-C processing pipelines conform to ENCODE reference standards and have not been corrupted during processing.

When to use

After running the ENCODE Hi-C uniform processing pipeline or Juicer on FASTQ input data and generating a .hic output file. Use this skill whenever you need to verify that the generated Hi-C map file matches the expected format specification and matches a known-good reference output, particularly in contexts where reproducibility and data integrity are critical (e.g., ENCODE submissions, quality assurance workflows, or collaborative analyses).

When NOT to use

  • Input file is not a .hic binary format (e.g., if output is in BAM, SAM, or text-based contact matrix formats instead)
  • No reference checksum is available or accessible for comparison
  • Pipeline parameters or input FASTQ datasets intentionally differ from the reference, making bit-identical reproduction impossible

Inputs

  • .hic binary file (Hi-C contact map output from ENCODE Hi-C uniform processing pipeline or Juicer)
  • ENCODE reference .hic file checksum (MD5 or SHA256 hash)

Outputs

  • Computed checksum for the generated .hic file
  • Checksum comparison result (match/mismatch)
  • Validation report confirming format and integrity status

How to apply

First, ensure the output Hi-C map is in the expected .hic binary format produced by the encode_hic_pipeline wrapper or Juicer's Hi-C file creation step. Compute a checksum or cryptographic hash (e.g., MD5, SHA256) of the generated .hic file using standard GNU coreutils (md5sum or sha256sum). Compare the computed checksum against the ENCODE reference output checksum for the same input dataset. If checksums match exactly, the pipeline output is reproducible and the file has not been corrupted. If checksums differ, investigate whether pipeline parameters, tool versions, or input data differ from the reference run. This approach leverages the fact that Juicer's deterministic processing should produce bit-identical outputs when given identical inputs and parameters.

Read the full file on GitHub · 95 lines

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. 9d ago First seen · 95 lines · 33 tokens per session scan A addcec854a63

Subscribe to this mod's changes

hic-map-format-validation is a skill published in the GitHub repository HolobiomicsLab/asb-skill-collections (15 stars, last pushed yesterday), licensed Apache-2.0. It adds 33 tokens to every session and 1,502 once invoked, about $0.0002 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 2026-09-03.

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