alterlab-etetoolkit

alterlab-etetoolkit is a skill for Claude Code from AlterLab-IEU/AlterLab-Academic-Skills. It costs 99 tokens per session (1,075 once invoked), scanned A, original, MIT.

A Python toolkit for studying phylogenetic trees, diagrams that show how species or genes are related. It works with common tree-file formats and can produce figures.

In plain words
What is it for?
Parse and edit trees, find duplication and speciation events, identify related genes, query NCBI taxonomy, compare trees, and export PDF, SVG, or PNG figures.
Why use it?
It removes the need to build separate code for reading, changing, comparing, and displaying evolutionary trees.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the alterlab-bioinformatics plugin — 38 skills shipped together

Good fit Parse and edit trees, find duplication and speciation events, identify related genes, query NCBI taxonomy, compare trees, and export PDF, SVG, or PNG figures.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/alterlab-ieu/alterlab-academic-skills/alterlab-etetoolkit
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 AlterLab-IEU/AlterLab-Academic-Skills --skill alterlab-etetoolkit
Clone the repo
git clone --depth 1 https://github.com/AlterLab-IEU/AlterLab-Academic-Skills

Made for: Claude Code.

Or install alterlab-bioinformatics, the plugin that ships this one along with the rest of its 38 skills.

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 alterlab-etetoolkit

README.md
[![agentmods](https://agentmods.dev/badge/skills/alterlab-ieu/alterlab-academic-skills/alterlab-etetoolkit/github.svg)](https://agentmods.dev/skills/alterlab-ieu/alterlab-academic-skills/alterlab-etetoolkit)
Your own site
<a href="https://agentmods.dev/skills/alterlab-ieu/alterlab-academic-skills/alterlab-etetoolkit"><img src="https://agentmods.dev/badge/skills/alterlab-ieu/alterlab-academic-skills/alterlab-etetoolkit/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 alterlab-etetoolkit

Your own site · 80×15
<a href="https://agentmods.dev/skills/alterlab-ieu/alterlab-academic-skills/alterlab-etetoolkit"><img src="https://agentmods.dev/badge/skills/alterlab-ieu/alterlab-academic-skills/alterlab-etetoolkit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 99 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,075 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 $0.00099 $0.01075
Opus 5 $0.00049 $0.00537
Sonnet 5 $0.00020 $0.00215
Haiku 4.5 $0.00010 $0.00108

Measured 11d ago against content hash 4db75e647336, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

alterlab-etetoolkit 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 11d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/quick_visualize.py, scripts/tree_operations.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.

skills/bioinformatics/alterlab-etetoolkit/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.

ETE Toolkit Skill

Overview

ETE (Environment for Tree Exploration) is a toolkit for phylogenetic and hierarchical tree analysis. Manipulate trees, analyze evolutionary events, visualize results, and integrate with biological databases for phylogenomic research and clustering analysis.

When to Use

  • Parsing, traversing, or reformatting tree files (Newick / NHX / PhyloXML / NeXML)
  • Pruning, rooting, collapsing, or resolving polytomies in a tree
  • Detecting duplication/speciation events and inferring orthologs/paralogs from gene trees
  • Querying NCBI Taxonomy (taxid/name translation, lineages, taxonomy trees)
  • Producing publication-quality PDF/SVG/PNG tree figures
  • Comparing trees (Robinson-Foulds) or analyzing clustering dendrograms

Core Capabilities

ETE exposes six capability areas. Each has detailed, copy-ready code in the references (see Index below).

  1. Tree manipulation — I/O across formats, traversal (pre/post/levelorder), topology edits (prune, root, collapse), distances, RF tree comparison.
  2. Phylogenetic analysis — alignment linkage, species naming, duplication/speciation detection (Species Overlap or reconciliation), orthology/paralogy.
  3. NCBI Taxonomy — local cached DB, taxid↔name translation, lineage retrieval, taxonomy-tree building, tree annotation.
  4. Visualization — PNG/PDF/SVG export, rectangular/circular layouts, NodeStyle, Face objects, layout functions, interactive GUI.
  5. Clustering analysisClusterTree, data-matrix linking, silhouette/Dunn metrics, heatmap views.
  6. Tree comparison — Robinson-Foulds (raw + normalized), partition/bipartition analysis, batch pairwise distance matrices.

Core Workflow

The canonical minimal pattern — load, edit, save:

from ete3 import Tree

# Load tree from file (format 1 = with internal node names)
tree = Tree("tree.nw", format=1)

# Prune to taxa of interest, preserving branch lengths
tree.prune(["species1", "species2", "species3"], preserve_branch_length=True)

# Midpoint root
tree.set_outgroup(tree.get_midpoint_outgroup())

# Save
tree.write(outfile="rooted_tree.nw")

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. 11d ago First seen · 95 lines · 99 tokens per session scan A 4db75e647336

Subscribe to this mod's changes

alterlab-etetoolkit is a skill published in the GitHub repository AlterLab-IEU/AlterLab-Academic-Skills (66 stars, last pushed 6d ago), licensed MIT. It adds 99 tokens to every session and 1,075 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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