Setup
First-time setup for protein design tools. Use this skill when: (1) User is new and hasn't run any tools yet, (2) Commands fail with "file not found" or "modal: command not found", (3) Modal authentication errors occur, (4) User asks how to get started or set up the environment, (5) biomodals directory is missing or tools aren't working.From its SKILL.md
npx -y skills add adaptyvbio/protein-design-skills --skill setupAssembled from the repository path, not quoted from the project. Check it against their README if it does not work.
One thing to look at
- runs commandsInstructs the agent to run 8 commands, including `pip install modal` and 7 more.
What its file declares
Copied from the file, not written here
The file declares its own license as MIT. That is the author’s claim about this one file, and it is not the same thing as the license GitHub reports for the repository, which is listed with the other numbers below.
SKILL.md
3.5 KB, 875 tokens by cl100k_base, as published. Nobody here has run it
Setup Guide
Help users get their environment ready to run protein design tools.
Quick checklist
Run through this checklist when a user encounters setup issues:
| Step | Check | Fix |
|---|---|---|
| 1. Modal CLI | modal --version | pip install modal |
| 2. Modal auth | modal token show | modal setup |
| 3. biomodals | ls biomodals/modal_*.py | git clone https://github.com/hgbrian/biomodals |
| 4. Test | cd biomodals && modal run modal_boltzgen.py --help | See troubleshooting |
Diagnosing issues
Error: "modal: command not found"
Cause: Modal CLI not installed.
Fix:
pip install modal
Then restart the terminal or run hash -r.
Error: "Permission denied" or "Unauthorized"
Cause: Modal not authenticated.
Fix:
modal setup
This opens a browser. Click "Authorize" to complete authentication.
Error: "No such file or directory: modal_boltzgen.py"
Cause: biomodals repository not cloned or not in correct directory.
Fix:
git clone https://github.com/hgbrian/biomodals
cd biomodals
Error: "uvx: command not found"
Cause: uvx is an optional wrapper from the uv package. It's not required.
Fix: Run modal directly (recommended):
modal run modal_boltzgen.py --help
Or install uv if you prefer using uvx:
pip install uv
Full setup steps
Step 1: Install Modal CLI
pip install modal
Verify: modal --version
Step 2: Authenticate Modal
modal setup
This opens a browser. Click "Authorize".
Verify: modal token show
Step 3: Clone biomodals
git clone https://github.com/hgbrian/biomodals
cd biomodals
Verify: ls modal_*.py should show files like modal_boltzgen.py
Step 4: Test the Setup
cd biomodals
modal run modal_boltzgen.py --help
Expected: Usage instructions appear showing --input-yaml, --protocol, --num-designs options.
Common workflows after setup
Once setup is complete, users can:
cd biomodals
# Design binders with BoltzGen (requires YAML config)
modal run modal_boltzgen.py --input-yaml binder.yaml --protocol protein-anything --num-designs 50
# Generate backbones with RFdiffusion (official repo, not biomodals)
python run_inference.py inference.input_pdb=target.pdb contigmap.contigs=[A1-150/0 70-100] inference.num_designs=100
# Validate with Chai
modal run modal_chai1.py --input-faa designs.fasta
GPU selection
Set GPU with environment variable:
GPU=L40S modal run modal_boltzgen.py --input-yaml config.yaml --num-designs 50
GPU=A100 modal run modal_chai1.py --input-faa complex.fasta
| GPU | VRAM | Best For |
|---|---|---|
| T4 | 16GB | ProteinMPNN, ESM |
| A10G | 24GB | RFdiffusion, Chai |
| L40S | 48GB | BoltzGen, BindCraft |
| A100 | 40-80GB | Large complexes |
Modal free tier
Modal offers $30/month in free credits - enough for:
- ~500 BoltzGen designs
- ~2000 RFdiffusion backbones
- ~1000 Chai predictions
Full documentation: See Getting started
What ships with it
Read from the repository
Just SKILL.md. No reference files, no scripts.
Gives 0 of the 12 instructions most project setup skills give in 875 tokens
Counted across 1,553 of the 3,091 authors here whose files we hold, read 2026-09-06
- Write the configuration filein 36 of 1553
- Create the directory structurein 35 of 1553, across 33 files
- Verify the setupin 31 of 1553, across 28 files
- Run the setup scriptin 30 of 1553, across 29 files
- Pre-determine the required sample sizein 29 of 1553, across 12 files
- Check if the configuration already existsin 29 of 1553
- Document every testin 26 of 1553, across 10 files
- Start with a hypothesisin 26 of 1553, across 11 files
- Ask one question at a timein 22 of 1553
- Test a single variable per testin 21 of 1553, across 9 files
- Read product marketing context before asking questionsin 19 of 1553, across 8 files
- Do not peek and stop earlyin 18 of 1553, across 7 files
Said here and by no other author read
- Install the modal CLI
- Authenticate modal
- Test the modal setup
Grouped from the skills themselves: near-identical wordings counted once, and counted by distinct author, so one author publishing three of these counts once. Length counted with cl100k_base; the agent that loads this file may tokenize it differently.