bio-virtual-screening

bio-virtual-screening is a skill for Claude Code, Codex from GPTomics/bioSkills. It costs 129 tokens per session (6,108 once invoked), scanned A, original, MIT.

A computational workflow for testing many small molecules against a protein target by predicting how they might fit into a binding site. This process, called virtual screening, uses molecular docking to rank possible binding poses.

In plain words
What is it for?
Use it to prepare proteins and ligands, find or define binding sites, run AutoDock Vina, SMINA, GNINA, or DiffDock-L, and inspect or rescore predicted poses.
Why use it?
It narrows a large chemical library to compounds worth examining experimentally. The workflow also checks protein and molecule preparation, binding-site choice, scoring, and pose geometry.

Skill for Claude CodeCodex

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

Good fit Use it to prepare proteins and ligands, find or define binding sites, run AutoDock Vina, SMINA, GNINA, or DiffDock-L, and inspect or rescore predicted poses.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/gptomics/bioskills/virtual-screening
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 GPTomics/bioSkills --skill virtual-screening
Clone the repo
git clone --depth 1 https://github.com/GPTomics/bioSkills

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 bio-virtual-screening

README.md
[![agentmods](https://agentmods.dev/badge/skills/gptomics/bioskills/virtual-screening/github.svg)](https://agentmods.dev/skills/gptomics/bioskills/virtual-screening)
Your own site
<a href="https://agentmods.dev/skills/gptomics/bioskills/virtual-screening"><img src="https://agentmods.dev/badge/skills/gptomics/bioskills/virtual-screening/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 bio-virtual-screening

Your own site · 80×15
<a href="https://agentmods.dev/skills/gptomics/bioskills/virtual-screening"><img src="https://agentmods.dev/badge/skills/gptomics/bioskills/virtual-screening.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 129 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,108 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00129 $0.06108
Opus 5 $0.00064 $0.03054
Sonnet 5 $0.00026 $0.01222
Haiku 4.5 $0.00013 $0.00611

Measured 6d ago against content hash 6cccbbd96b9e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

bio-virtual-screening scanned grade A with 1 finding 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 6d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (examples/virtual_screen.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

subprocess.run(['pdb2pqr', '--ff=AMBER', f'--with-ph={pH}',
Origin

Copies of this mod

1 near-identical copy found in the catalogue:

chemoinformatics/virtual-screening/SKILL.md · 371 lines

How it starts

The opening of the file, as written. The whole thing — 371 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Version Compatibility

Reference examples tested with: AutoDock Vina 1.2.5+, SMINA 2020-12+, GNINA 1.1+ for rescore (GNINA 1.3+ for the six-mode interface documented below), RDKit 2024.09+, meeko 0.5+, P2Rank 2.4+, ProDy 2.4+, pdb2pqr 3.6+.

Before using code patterns, verify installed versions match. If versions differ:

  • Python: pip show <package> then help(module.function) to check signatures
  • CLI: vina --version; gnina --version; smina --version

If code throws ImportError, AttributeError, or TypeError, introspect the installed package and adapt the example to match the actual API rather than retrying.

Virtual Screening

Screen chemical libraries against protein targets via molecular docking. Vina is the de-facto default, SMINA adds flexibility (Vinardo scoring, custom scoring), and GNINA adds CNN-based pose scoring (Top-1 redock 58%->73% over Vina, cross-dock 27%->37%). Deep-learning docking (DiffDock-L, EquiBind, NeuralPLexer) competes in pose accuracy, but physical validity is method- and dataset-dependent; the workflow therefore combines ML pose sampling with classical scoring and explicit geometry checks. For ultralarge libraries (>1M), library preparation, hierarchical filtering, and HPC orchestration become the limiting steps.

For pose physical-validity QC, see chemoinformatics/pose-validation. For ML-driven docking + rescoring, see chemoinformatics/ml-docking-rescoring. For covalent docking, see chemoinformatics/covalent-design. For affinity calculations (FEP), see chemoinformatics/free-energy-calculations.

Docking Tool Taxonomy

Tool Scoring Speed (sec/lig) Best at Fails when
AutoDock Vina 1.2 Vina (empirical) Hardware- and settings-dependent Open, well-characterized baseline Cross-dock; cryptic pockets; metal centers
SMINA Vina + flexible + custom Hardware- and settings-dependent Custom scoring; flexible side chains Same Vina-scoring caveats
Vinardo Modified Vina scoring Hardware- and settings-dependent Alternative empirical score Validate on target-relevant controls
GNINA 1.1 CNN or Vina scoring GPU- and settings-dependent CNN-assisted pose ranking Validate transfer to the target and chemotype
AutoDock 4 AD4 + grid maps Hardware- and settings-dependent Legacy reference More setup than Vina
DOCK 6/7 DOCK + Amber Hardware- and settings-dependent UCSF DOCK ecosystem Steep learning curve
Glide (Schrodinger) GlideScore License and hardware-dependent Commercial docking workflow License cost
GOLD (CCDC) GOLDScore / ChemScore License and hardware-dependent Commercial workflow; metal options License cost
FlexX (BioSolveIT) FlexX License and hardware-dependent Fragment-based placement License cost
rDock rDock Hardware- and settings-dependent Open-source alternative Validate maintenance and target fit
DiffDock-L Diffusion-generative GPU- and settings-dependent Pose sampling for cross-docking Validate geometry with PoseBusters; see ml-docking-rescoring
EquiBind Equivariant NN GPU- and settings-dependent Single-shot pose generation Requires independent geometry and ranking checks
Boltz-2 + GNINA rescore Foundation model + CNN GPU- and settings-dependent Experimental multi-model workflow Benchmark each evidence stream independently

Read the full file on GitHub · 371 lines

Files

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.

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. 6d ago First seen · 371 lines · 129 tokens per session scan A 6cccbbd96b9e

Subscribe to this mod's changes

bio-virtual-screening is a skill published in the GitHub repository GPTomics/bioSkills (1,199 stars, last pushed 25d ago), licensed MIT. It adds 129 tokens to every session and 6,108 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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