alterlab-alphafold

alterlab-alphafold is a skill for Claude Code from AlterLab-IEU/AlterLab-Academic-Skills. It costs 176 tokens per session (1,291 once invoked), scanned A, original, MIT.

A tool for predicting a protein’s three-dimensional shape from its amino-acid sequence, including single proteins and multi-protein complexes. It also reports confidence measures that indicate which parts of the prediction may be reliable.

In plain words
What is it for?
Use it to fold protein sequences from FASTA files, predict complexes, compare models, inspect confidence scores, or check designed sequences.
Why use it?
It helps estimate a protein structure when an experimentally determined structure is not available and helps judge the prediction’s reliability.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

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

Good fit Use it to fold protein sequences from FASTA files, predict complexes, compare models, inspect confidence scores, or check designed sequences.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/alterlab-ieu/alterlab-academic-skills/alterlab-alphafold
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-alphafold
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-alphafold

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/alterlab-ieu/alterlab-academic-skills/alterlab-alphafold"><img src="https://agentmods.dev/badge/skills/alterlab-ieu/alterlab-academic-skills/alterlab-alphafold.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 176 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,291 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 $0.00176 $0.01291
Opus 5 $0.00088 $0.00646
Sonnet 5 $0.00035 $0.00258
Haiku 4.5 $0.00018 $0.00129

Measured 11d ago against content hash 7eaf9806a7d1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

alterlab-alphafold 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.

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-alphafold/SKILL.md · 100 lines

How it starts

The opening of the file, as written. The whole thing — 100 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AlphaFold (via ColabFold)

Overview

Predict a protein's 3D structure from its amino-acid sequence with AlphaFold2, run through ColabFold (Mirdita et al., Nature Methods 2022) — which replaces AlphaFold's slow genetic-database MSA search with the fast MMseqs2 API, making folding practical on a single GPU. Handles single chains (monomer) and complexes via AlphaFold2-Multimer (Evans et al. 2021), and reports per-residue and per-interface confidence metrics so you know which parts of a prediction to trust.

This skill runs folding and returns structures + confidence. To retrieve an already-computed AlphaFold prediction for a known UniProt entry without running anything, use alterlab-alphafold-db instead.

When to Use This Skill

Use this skill when the user wants to:

  • Fold a protein sequence (FASTA) into a predicted 3D structure (PDB/mmCIF).
  • Predict a protein complex (AF2-Multimer) and score the interface (ipTM).
  • Rank multiple models and read confidence (pLDDT, pTM, PAE) to judge reliability.
  • Validate a designed sequence by refolding it and checking self-consistency vs. a target.

Does NOT Trigger

Scenario Use instead
Co-fold a protein with a ligand (SMILES/CCD) or predict binding affinity alterlab-boltz
Antibody–antigen / arbitrary multi-entity complex from one FASTA alterlab-chai
Look up a precomputed AlphaFold model by UniProt id alterlab-alphafold-db
ESM embeddings, inverse folding, generative design alterlab-esm
Dock a ligand into an existing structure alterlab-diffdock
De-novo backbone generation alterlab-rfdiffusion

Core Capabilities

1. Monomer folding

# One sequence per FASTA record; MSAs via the hosted MMseqs2 API (--msa-mode)
colabfold_batch input.fasta out/ --num-models 5 --num-recycle 3

Outputs per record: ranked *_relaxed_rank_001_*.pdb, a JSON with plddt/pae, and coverage/pLDDT plots. TODO(verify) exact flag names against your installed ColabFold.

Read the full file on GitHub · 100 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. 11d ago First seen · 100 lines · 176 tokens per session scan A 7eaf9806a7d1

Subscribe to this mod's changes

alterlab-alphafold is a skill published in the GitHub repository AlterLab-IEU/AlterLab-Academic-Skills (66 stars, last pushed 6d ago), licensed MIT. It adds 176 tokens to every session and 1,291 once invoked, about $0.0009 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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