mutation-design-gfp

mutation-design-gfp is a skill for Claude Code, Codex from PharMolix/OpenBioMed. It costs 34 tokens per session (935 once invoked), scanned A, original, MIT.

A computational method for proposing Green Fluorescent Protein (GFP) variants, where GFP is a protein that glows under suitable light. It searches through repeated rounds for variants predicted to be brighter while keeping the proposals diverse.

In plain words
What is it for?
Use it to design GFP variants, run computer-based directed evolution, or generate batches of candidate sequences with improved predicted fluorescence.
Why use it?
It reduces the manual effort of choosing and comparing many possible protein mutations. The search uses prediction feedback to guide later mutation proposals.

Skill for Claude CodeCodex

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

Good fit Use it to design GFP variants, run computer-based directed evolution, or generate batches of candidate sequences with improved predicted fluorescence.

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Install with agentmods
npx agentmods add skills/pharmolix/openbiomed/mutation-design-gfp
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 mutation-design-gfp
Clone the repo
git clone --depth 1 https://github.com/PharMolix/OpenBioMed

Made for: Claude Code, Codex.

Wrote this? Show the measurements

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README.md
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Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 935 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 $0.00034 $0.00935
Opus 5 $0.00017 $0.00467
Sonnet 5 $0.00007 $0.00187
Haiku 4.5 $0.00003 $0.00093

Measured 12d ago against content hash 165bcdec834a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

mutation-design-gfp 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.

skills/mutation-design-gfp/SKILL.md · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

High-Fluorescence GFP Mutant Proposal

A skill performs automated multi-round optimization of Green Fluorescent Protein (GFP) to discover mutants with higher fluorescence intensity and higher diversity.

When to Use This Skill

  • Design novel GFP mutants with improved fluorescence intensity.
  • Run computational iterative directed evolution.
  • Perform fast mutation search guided by an oracle model.

Example prompts:

  • “Design GFP mutants with higher fluorescence.”
  • “Run multi-round mutation optimization for GFP.”
  • “Generate 96 GFP variants with improved fluorescence.”

Prerequisites

  • Python 3.9+
  • PyTorch
  • NumPy / Pandas
  • Protein sequence analysis tools
  • Protein language model tools (ESM2)

Core Capabilities

This skill can:

  1. Download initial GFP sequences if they were not provided by users.
  2. Download and execute an in-silico oracle GFP prediction model.
  3. Generate controllable mutants within 4 point mutations for each round.
  4. Use ESM2 embeddings to represent GFP sequences.
  5. Optimize mutation proposals based on oracle feedback.
  6. Maintain population diversity using average pairwise Hamming distance.
  7. Perform multi-round optimization and return the best mutants.

Workflow

  1. Download initial GFP sequences from https://cloud.tsinghua.edu.cn/f/5e673c1db710466b828f/?dl=1 and use them as the starting pool.

  2. Download the oracle GFP prediction model from https://cloud.tsinghua.edu.cn/f/f655f79d7bb04a98a0bb/?dl=1, and the configuration file from https://cloud.tsinghua.edu.cn/f/8a894bb4b41f4074b9b0/?dl=1.

  3. Execute code for oracle loading and scoring:

import torch
from omegaconf import OmegaConf

# ===== ORACLE MODEL LOADING =====
def load_oracle_model(ckpt_path, cfg_path):
    with open(cfg_path, 'r') as fp:
        cfg = OmegaConf.load(fp.name)
    oracle = BaseCNN(**cfg.model.predictor)
    state_dict = torch.load(ckpt_path)
    oracle.load_state_dict(torch.load(ckpt_path))
    oracle.eval()

# ===== ORACLE SCORING FUNCTION =====
def score_sequence(oracle, sequence: str) -> float:
    results = oracle(sequence).detach()
    return results.cpu().numpy()

Read the full file on GitHub · 110 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. 12d ago First seen · 110 lines · 34 tokens per session scan A 165bcdec834a

Subscribe to this mod's changes

mutation-design-gfp is a skill published in the GitHub repository PharMolix/OpenBioMed (1,105 stars, last pushed 1mo ago), licensed MIT. It adds 34 tokens to every session and 935 once invoked, about $0.0002 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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