solublempnn

solublempnn is a skill for Claude Code, Codex from adaptyvbio/protein-design-skills. It costs 91 tokens per session (1,363 once invoked), scanned A, original, MIT.

A protein-sequence design tool that favors versions likely to dissolve in water and be produced by E. coli bacteria.

In plain words
What is it for?
Use it to design or adjust protein sequences for soluble, higher-yield expression in E. coli.
Why use it?
It helps reduce aggregation and inclusion bodies, where proteins clump together during production instead of remaining usable.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is **First time?** See [Getting started](../../docs/getting-started.md) to set up Modal and biomodals..

Good fit Use it to design or adjust protein sequences for soluble, higher-yield expression in E. coli.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/adaptyvbio/protein-design-skills
agentmods
npx agentmods add skills/adaptyvbio/protein-design-skills/solublempnn

Made for: Claude Code, Codex.

Wrote this? Show the measurements

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agentmods badge for solublempnn

README.md
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Per session 91 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,363 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 $0.00091 $0.01363
Opus 5 $0.00046 $0.00681
Sonnet 5 $0.00018 $0.00273
Haiku 4.5 $0.00009 $0.00136

Measured 11d ago against content hash edccf0ee7009, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

solublempnn 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/solublempnn/SKILL.md · 163 lines

How it starts

The opening of the file, as written. The whole thing — 163 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SolubleMPNN Solubility-Optimized Design

Prerequisites

Requirement Minimum Recommended
Python 3.8+ 3.10
CUDA 11.0+ 11.7+
GPU VRAM 8GB 16GB (T4)
RAM 8GB 16GB

How to run

First time? See Getting started to set up Modal and biomodals.

Option 1: Modal (recommended)

SolubleMPNN is the soluble model type within the LigandMPNN wrapper:

cd biomodals
modal run modal_ligandmpnn.py \
  --input-pdb backbone.pdb \
  --params-str "--model_type soluble_mpnn --number_of_batches 16 --temperature 0.1"

GPU: A10G default | Timeout: 900s default

Option 2: Local installation

git clone https://github.com/dauparas/ProteinMPNN.git
cd ProteinMPNN

# The soluble weights are selected with --use_soluble_model, not a model name
python protein_mpnn_run.py \
  --pdb_path backbone.pdb \
  --out_folder output/ \
  --num_seq_per_target 16 \
  --sampling_temp "0.1" \
  --use_soluble_model

Key parameters

Parameter Default Description
--pdb_path required Input structure
--use_soluble_model off Use the solubility-trained weights
--num_seq_per_target 1 Sequences per structure
--sampling_temp "0.1" Temperature (string)
--model_name v_48_020 Noise level (0.20 A); orthogonal to solubility

Model weights

--model_name sets the training-noise level (v_48_002 = 0.02 A, v_48_010 = 0.10 A, v_48_020 = 0.20 A), not a solubility tier. Solubility is a separate weight set chosen with --use_soluble_model, available for v_48_010 and v_48_020. Higher noise gives more sequence diversity.

Output format

output/
├── seqs/backbone.fa
└── backbone_pdb/backbone_0001.pdb

Sample output

Successful run

$ python protein_mpnn_run.py --pdb_path backbone.pdb --use_soluble_model --num_seq_per_target 8
Loading soluble model weights (v_48_020)...
Designing sequences for backbone.pdb
Generated 8 sequences in 2.1 seconds

output/seqs/backbone.fa:
>backbone_0001, score=1.31, global_score=1.24, seq_recovery=0.78
MKTAYIAKQRQISFVKSHFSRQLE...
>backbone_0002, score=1.28, global_score=1.21, seq_recovery=0.81
MKTAYIAKQRQISFVKSQFSRQLD...

Read the full file on GitHub · 163 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 · 163 lines · 91 tokens per session scan A edccf0ee7009

Subscribe to this mod's changes

solublempnn is a skill published in the GitHub repository adaptyvbio/protein-design-skills (158 stars, last pushed 3mo ago), licensed MIT. It adds 91 tokens to every session and 1,363 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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