bio-comparative-genomics-comparative-annotation-projection

bio-comparative-genomics-comparative-annotation-projection is a skill for Claude Code, Codex from GPTomics/bioSkills. It costs 196 tokens per session (6,714 once invoked), scanned A, original, MIT.

A bioinformatics workflow for transferring gene annotations from a well-studied reference genome to another genome. A gene annotation describes where genes and their parts are located and what they may do.

In plain words
What is it for?
Use it to project genes and exon structures between genomes, classify whether transferred genes remain intact, and check annotation quality.
Why use it?
It avoids manually annotating every genome from scratch and helps preserve comparable gene labels across related species.

Skill for Claude CodeCodex

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

Good fit Use it to project genes and exon structures between genomes, classify whether transferred genes remain intact, and check annotation quality.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/gptomics/bioskills/comparative-annotation-projection
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 comparative-annotation-projection
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-comparative-genomics-comparative-annotation-projection

README.md
[![agentmods](https://agentmods.dev/badge/skills/gptomics/bioskills/comparative-annotation-projection/github.svg)](https://agentmods.dev/skills/gptomics/bioskills/comparative-annotation-projection)
Your own site
<a href="https://agentmods.dev/skills/gptomics/bioskills/comparative-annotation-projection"><img src="https://agentmods.dev/badge/skills/gptomics/bioskills/comparative-annotation-projection/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-comparative-annotation-projection

Your own site · 80×15
<a href="https://agentmods.dev/skills/gptomics/bioskills/comparative-annotation-projection"><img src="https://agentmods.dev/badge/skills/gptomics/bioskills/comparative-annotation-projection.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 196 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,714 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 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 $0.00196 $0.06714
Opus 5 $0.00098 $0.03357
Sonnet 5 $0.00039 $0.01343
Haiku 4.5 $0.00020 $0.00671

Measured 7d ago against content hash cf518013eacd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

bio-comparative-genomics-comparative-annotation-projection 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 7d ago.

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

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

wget https://gemoma.de/jcag/gemoma.zip && unzip gemoma.zip
Origin

Copies of this mod

1 near-identical copy found in the catalogue:

comparative-genomics/comparative-annotation-projection/SKILL.md · 424 lines

How it starts

The opening of the file, as written. The whole thing — 424 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Version Compatibility

Reference examples tested with: TOGA 1.1.7+ (hillerlab/TOGA; Kirilenko 2023 Science 380:eabn3107), CESAR 2.0 (Sharma, Schwede & Hiller 2017 Bioinformatics 33:3985), LiftOff 1.6.3+ (Shumate & Salzberg 2021 Bioinformatics 37(12):1639-1643), Comparative Annotation Toolkit (CAT) 2.4+, GeMoMa 1.9+ (Keilwagen 2019 Methods Mol Biol 1962:161), UCSC liftOver 2024+, Cactus 2.9.1+ (for HAL input), HAL toolkit 2.3+, NextFlow 24+ for TOGA pipeline, BUSCO 5.7+ / Compleasm 0.2.7+ for QC, Luigi + Toil for CAT, R 4.4+. The current TOGA expects HAL from Cactus 2.5+; older HAL formats may fail.

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

  • CLI: toga.py --help; cesar --help; liftoff --version
  • Python: pip show liftoff
  • Java: gemoma --help (Java 11+)

If code throws TOGA chain file missing, CESAR fragment not found, LiftOff annotation not parsed, the toolchain expects specific input formats: TOGA needs HAL or chain/net files from Cactus / LASTZ; CESAR needs exon-level GFF; LiftOff needs reference GFF and aligned FASTA. Pre-process with the appropriate format conversion.

Comparative Annotation Projection

"Annotate this new genome using my well-annotated reference" -> Annotation projection from a reference is the modern alternative to de novo gene prediction; it produces high-quality, comparable annotations across genomes by leveraging evolutionary conservation. The 2023-era standard is TOGA + CESAR 2.0 (Kirilenko 2023 Science 380:eabn3107), which uses whole-genome alignment chains + ML classification + codon-aware exon projection to scale to hundreds of genomes (Zoonomia: 488 mammals; Bird10000 Genomes: 501 birds). For ortholog-based projection (no WGA needed), LiftOff (Shumate & Salzberg 2021 Bioinformatics 37(12):1639) is the standard. The critical decision is WGA-anchored (TOGA) vs ortholog-anchored (LiftOff): TOGA explicitly classifies gene intactness vs loss using the alignment chains, LiftOff relies on reciprocal-best-hit equivalents.

Read the full file on GitHub · 424 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. 7d ago First seen · 424 lines · 196 tokens per session scan A cf518013eacd

Subscribe to this mod's changes

bio-comparative-genomics-comparative-annotation-projection is a skill published in the GitHub repository GPTomics/bioSkills (1,199 stars, last pushed 26d ago), licensed MIT. It adds 196 tokens to every session and 6,714 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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