bio-comparative-genomics-synteny-analysis

bio-comparative-genomics-synteny-analysis is a skill for Claude Code, Codex from PKU-YuanGroup/OpenAI4S. It costs 192 tokens per session (9,006 once invoked), scanned A, a copy of bio-comparative-genomics-synteny-analysis, MIT.

A comparative-genomics workflow for finding blocks of genes that remain in the same order between genomes. These matching blocks, called synteny, can reveal chromosome rearrangements and other changes in genome structure.

In plain words
What is it for?
Use it to detect and visualize conserved gene blocks, structural rearrangements, duplicated regions, and sequence-level synteny.
Why use it?
Gene lists alone can hide inversions, duplications, translocations, and large-scale rearrangements. Synteny analysis shows how genome architecture changed between species or assemblies.

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 detect and visualize conserved gene blocks, structural rearrangements, duplicated regions, and sequence-level synteny.

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Install with agentmods
npx agentmods add skills/pku-yuangroup/openai4s/bio-comparative-genomics-synteny-analysis
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-comparative-genomics-synteny-analysis
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-comparative-genomics-synteny-analysis

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/pku-yuangroup/openai4s/bio-comparative-genomics-synteny-analysis"><img src="https://agentmods.dev/badge/skills/pku-yuangroup/openai4s/bio-comparative-genomics-synteny-analysis.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 192 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,006 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 $0.00192 $0.09006
Opus 5 $0.00096 $0.04503
Sonnet 5 $0.00038 $0.01801
Haiku 4.5 $0.00019 $0.00901

Measured 9d ago against content hash 2e6336d61094, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

bio-comparative-genomics-synteny-analysis 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.

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

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-comparative-genomics-synteny-analysis — 36 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-comparative-genomics-synteny-analysis/SKILL.md · 486 lines

How it starts

The opening of the file, as written. The whole thing — 486 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Version Compatibility

Reference examples tested with: MCScanX 1.0+ (wyp1125/MCScanX commit 2020+), JCVI 1.4.21+ (Python port of MCScan), GENESPACE 1.4.0+ (Lovell 2022 eLife 11:e78526), SyRI 1.7.1+ (Goel 2019 Genome Biol 20:277), plotsr 1.1.1+, AnchorWave 1.2.5+ (Song 2022 PNAS 119:e2113075119), i-ADHoRe 3.0.01+, SynNet (Zhao 2017 Plant Cell 29:1278), ntSynt 1.0.4+ (2024), minimap2 2.28+, MUMmer 4.0.0+, OrthoFinder 3.0+, R 4.4+. plotsr requires pysam 0.22+ and seaborn 0.13+.

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

  • CLI: MCScanX -h; syri --version; python3 -m jcvi.compara.catalog ortholog --help
  • R: packageVersion('GENESPACE'); ?run_genespace
  • Python: pip show jcvi

If code throws MCScanX: argument bad format, syri: input alignment file missing required columns, or GENESPACE: GFF parse error, these tools have brittle input parsing: MCScanX requires 4-column species_chr gene start end BED (non-standard), JCVI expects 4-column simple BED, GENESPACE requires GFF3 with gene feature type. Pre-process with jcvi.formats.gff bed or custom AWK.

Synteny Analysis

"Compare genome architecture between these species" -> Detect conserved gene order (synteny) and infer rearrangement history. Synteny is NOT the same as collinearity: synteny is "genes on same chromosome", collinearity is "same order on same chromosome" (modern usage often conflates them). The choice of tool depends on whether the question is gene-level co-linearity (MCScanX, JCVI), whole-genome structural rearrangements (SyRI, AnchorWave), multi-genome macrosynteny (GENESPACE, ntSynt), or synteny-aware orthology (GENESPACE, ProteinOrtho-synteny). Repeat-masking quality is the dominant determinant of result reliability -- unmasked TEs produce ~100x more false anchor pairs than real syntenic anchors.

  • CLI: MCScanX for collinear gene blocks via dynamic programming
  • CLI: python3 -m jcvi.compara.catalog ortholog A B for JCVI/MCScan Python pipeline
  • R: run_genespace() (Lovell 2022) for orthology-anchored riparian plots + pan-gene tracks
  • CLI: syri for inversion / translocation / duplication detection
  • CLI: anchorwave proali for sequence-level WGD-aware synteny

Read the full file on GitHub · 486 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. 9d ago First seen · 486 lines · 192 tokens per session scan A 2e6336d61094

Subscribe to this mod's changes

bio-comparative-genomics-synteny-analysis is a skill published in the GitHub repository PKU-YuanGroup/OpenAI4S (407 stars, last pushed yesterday), licensed MIT. It adds 192 tokens to every session and 9,006 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it A with 0 findings. It is 97% identical to bio-comparative-genomics-synteny-analysis, differing in 36 lines, and is treated as a copy.

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