antibody-design-iggm

antibody-design-iggm is a skill for Claude Code, Codex from PharMolix/OpenBioMed. It costs 63 tokens per session (1,166 once invoked), scanned A, original, MIT.

A method for designing new antibodies or improving existing ones with the IgGM machine-learning model. An antibody is a protein designed to recognise and bind to a particular target, such as part of another protein.

In plain words
What is it for?
Use it for epitope-conditioned antibody design, affinity maturation, or epitope prediction from an antigen–antibody complex. It requires a suitable Python, CUDA, memory, and GPU setup.
Why use it?
It helps researchers generate antibody sequences from an antigen structure and selected epitope. An epitope is the specific part of an antigen that an antibody binds to.

Skill for Claude CodeCodex

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

Good fit Use it for epitope-conditioned antibody design, affinity maturation, or epitope prediction from an antigen–antibody complex. It requires a suitable Python, CUDA, memory, and GPU setup.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/pharmolix/openbiomed/antibody-design-iggm
About the project

OpenBioMed is an agent platform and toolkit collection for biomedical research and drug discovery, covering areas such as molecular design, protein analysis, and single-cell data analysis. It is intended for researchers and provides the biomedical skills listed in the catalogue as workflows for Claude Code.

PharMolix/OpenBioMed · 1,105 stars · on GitHub

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 PharMolix/OpenBioMed --skill antibody-design-iggm
Clone the repo
git clone --depth 1 https://github.com/PharMolix/OpenBioMed

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 antibody-design-iggm

README.md
[![agentmods](https://agentmods.dev/badge/skills/pharmolix/openbiomed/antibody-design-iggm/github.svg)](https://agentmods.dev/skills/pharmolix/openbiomed/antibody-design-iggm)
Your own site
<a href="https://agentmods.dev/skills/pharmolix/openbiomed/antibody-design-iggm"><img src="https://agentmods.dev/badge/skills/pharmolix/openbiomed/antibody-design-iggm/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 antibody-design-iggm

Your own site · 80×15
<a href="https://agentmods.dev/skills/pharmolix/openbiomed/antibody-design-iggm"><img src="https://agentmods.dev/badge/skills/pharmolix/openbiomed/antibody-design-iggm.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,166 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 warn 7 Sept 2026
SkillSpector: 2 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high YARA Match · line 3
    YARA rule matched a hack tool or exploit indicator (offensive tools, reconnaissance, privilege escalation, or exploit frameworks).
    Fix: Remove offensive tool references and exploit code. Legitimate agent skills should not contain penetration testing tools, exploit frameworks, or reconnaissance utilities.
  • medium Data Exfiltration · line 35
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
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 $0.00063 $0.01166
Opus 5 $0.00032 $0.00583
Sonnet 5 $0.00013 $0.00233
Haiku 4.5 $0.00006 $0.00117

Measured 13d ago against content hash c6cbcbb43c2f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

antibody-design-iggm 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 13d 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/antibody-design-iggm/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.

IgGM Antibody De Novo Design

Prerequisites

Requirement Minimum Recommended
Python 3.10+ 3.10
CUDA 11.7+ 11.8
GPU VRAM 24GB 80GB (A800)
RAM 32GB 64GB

How to run

Local installation

git clone https://github.com/TencentAI4S/IgGM.git
cd IgGM

pip install torch==2.0.1 --index-url https://download.pytorch.org/whl/cu118
pip install pyg_lib torch_scatter torch_sparse torch_cluster torch_spline_conv -f https://data.pyg.org/whl/torch-2.0.1+cu118.html
pip install tqdm requests numpy==1.23.5 termcolor==2.4.0 biopython==1.79 openmm==8.2 pdbfixer ml-collections==0.1.1

Predict epitope based on antigen-antibody complex structure

python design.py --fasta complex_sequence.fasta --antigen complex_structure.pdb --cal_epitope
# --antigen: the structure of a known complex
# --fasta: the sequence of a known complex
  • The generated epitope format is (The serial number starts at 1): 7 8 9 10 11 12 13 14 108 109 110 111 112 113 114 115 116 118 167
  • If you specify epitope according to the sequence, make sure that the order of the sequence is consistent with the order in the PDB file, and mark the serial number of the corresponding position.

Given the structure of an antigen, design an antibody

python design.py --fasta design_requirement.fasta --antigen antigen_structure.pdb --epitope 7 8 9 10 11 --output output_dir
# --fasta: Directory path to input design requirement FASTA files, X for design region
# --antigen: Directory path to input antigen PDB files
# --epitope: epitope residues in antigen chain A , for example: 7 8 9 10 11
# --output: Directory path to output PDB files

Affinity maturation for an antibody sequence

python design.py --fasta design_requirement.fasta --antigen antigen_structure.pdb --fasta_origin original_antibody_sequence.fasta --run_task affinity_maturation --num_samples 10 --output output_dir
# --fasta: Directory path to input design requirement FASTA files, X for design region
# --antigen: Directory path to input antigen PDB files
# --fasta_origin: Directory path to original antibody FASTA files for affinity maturation
# --num_samples: number of samples for residue
# --output: Directory path to output PDB files

Read the full file on GitHub · 100 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. 13d ago First seen · 100 lines · 63 tokens per session scan A c6cbcbb43c2f

Subscribe to this mod's changes

antibody-design-iggm is a skill published in the GitHub repository PharMolix/OpenBioMed (1,105 stars, last pushed 1mo ago), licensed MIT. It adds 63 tokens to every session and 1,166 once invoked, about $0.0003 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.

Related

Other skills, from other repositories

mber

VHH nanobody design using mBER (Manifold Binder Engineering and Refinement). Use this skill when: (1) Designing VHH nanobody CDRs against a target protein, (2) Have an existing VHH scaffold and want to redesign CDR1/CDR2/CDR3, (3) Optimizing a known VHH binder, (4) Targeting specific hotspot residues on the antigen…

BioTender-max/ProteinClaw · 128 tokens

iggm

Antibody and nanobody CDR design using IgGM (generative model by TencentAI4S). Use this skill when: (1) Designing nanobody (VHH) CDR loops against a target, (2) Designing full antibody (heavy + light chain) CDRs, (3) Redesigning existing antibody CDRs, (4) Need antigen-conditioned antibody generation, (5) Generating…

BioTender-max/ProteinClaw · 127 tokens

boltzgen

All-atom protein design using BoltzGen diffusion model. Use this skill when: (1) Need side-chain aware design from the start, (2) Designing around small molecules or ligands, (3) Want all-atom diffusion (not just backbone), (4) Require precise binding geometries, (5) Using YAML-based configuration. For backbone-only…

adaptyvbio/protein-design-skills · 103 tokens

bindcraft

End-to-end binder design using BindCraft hallucination. Use this skill when: (1) Designing protein binders with built-in AF2 validation, (2) Running production-quality binder campaigns, (3) Using different design protocols (fast, default, slow), (4) Need joint backbone and sequence optimization, (5) Want high…

adaptyvbio/protein-design-skills · 104 tokens

germinal

De novo antibody and nanobody (VHH) design with Germinal. Use this skill when: (1) Designing epitope-targeted nanobodies or scFvs, (2) Needing CDR design on a fixed framework, (3) Working on antibody-format binders rather than miniproteins. For miniprotein binders, use binder-design (BoltzGen, BindCraft, RFdiffusion…

adaptyvbio/protein-design-skills · 105 tokens

bindcraft

End-to-end binder design using BindCraft hallucination. Use this skill when: (1) Designing protein binders with built-in AF2 validation, (2) Running production-quality binder campaigns, (3) Using different design protocols (fast, default, slow), (4) Need joint backbone and sequence optimization, (5) Want high…

FreedomIntelligence/OpenClaw-Medical-Skills · 104 tokens