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.
npx skills add AlterLab-IEU/AlterLab-Academic-Skills --skill alterlab-chaigit clone --depth 1 https://github.com/AlterLab-IEU/AlterLab-Academic-SkillsWrote 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.
[](https://agentmods.dev/skills/alterlab-ieu/alterlab-academic-skills/alterlab-chai)<a href="https://agentmods.dev/skills/alterlab-ieu/alterlab-academic-skills/alterlab-chai"><img src="https://agentmods.dev/badge/skills/alterlab-ieu/alterlab-academic-skills/alterlab-chai/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.
<a href="https://agentmods.dev/skills/alterlab-ieu/alterlab-academic-skills/alterlab-chai"><img src="https://agentmods.dev/badge/skills/alterlab-ieu/alterlab-academic-skills/alterlab-chai.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00160 | $0.01118 |
| Opus 5 | $0.00080 | $0.00559 |
| Sonnet 5 | $0.00032 | $0.00224 |
| Haiku 4.5 | $0.00016 | $0.00112 |
Grade A, and why
alterlab-chai 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 12d 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.
How it starts
The opening of the file, as written. The whole thing — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Chai-1 (open complex prediction)
Overview
Chai-1 (Chai Discovery 2024; chaidiscovery/chai-lab) is an open AlphaFold3-style model
that predicts multi-entity biomolecular complexes — proteins, small-molecule ligands, and
nucleic acids together — from a single typed FASTA. It is particularly used for
antibody–antigen and protein–ligand complexes, can run with or without MSAs, and accepts
restraints to guide the prediction.
Its niche relative to the other folders: one FASTA describing a mixed assembly, and
antibody–antigen in particular. For a ligand co-fold where you specifically want a binding
affinity, use alterlab-boltz; for a bare protein, use alterlab-alphafold.
When to Use This Skill
Use this skill when the user wants to:
- Predict an antibody–antigen complex structure.
- Fold a mixed assembly (protein + ligand + nucleic acid) described in one FASTA.
- Run complex prediction with or without MSAs, optionally guided by restraints.
- Get an open AlphaFold3-style complex prediction with per-entity confidence.
Does NOT Trigger
| Scenario | Use instead |
|---|---|
| Predict a protein–ligand binding affinity | alterlab-boltz |
| Protein-only or protein–protein folding | alterlab-alphafold |
| Dock a ligand into a fixed receptor structure | alterlab-diffdock |
| Look up an experimental complex structure | alterlab-pdb |
| Design antibody/interface sequences | alterlab-proteinmpnn / alterlab-ligandmpnn |
Core Capabilities
1. Single-FASTA multi-entity input
Chai-1 reads one FASTA whose records are typed by entity. A protein + ligand example:
>protein|antibody-Fv
EVQ...SS
>protein|antigen
MKT...GG
>ligand|cofactor
CC(=O)Oc1ccccc1C(=O)O
# CLI form (verify against installed chai-lab — TODO(verify))
chai-lab fold input.fasta out/
The header type tags (protein, ligand, rna, dna) tell Chai how to treat each record;
confirm the exact header/type syntax against your installed version.
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.
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.
- 12d ago First seen · 92 lines · 160 tokens per session scan A 1615d9f80bdf
alterlab-chai is a skill published in the GitHub repository AlterLab-IEU/AlterLab-Academic-Skills (66 stars, last pushed 7d ago), licensed MIT. It adds 160 tokens to every session and 1,118 once invoked, about $0.0008 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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