bio-pose-validation

bio-pose-validation is a skill for Claude Code, Codex from PKU-YuanGroup/OpenAI4S. It costs 74 tokens per session (3,852 once invoked), scanned A, a copy of bio-pose-validation, MIT.

A quality-control workflow for checking whether docked or AI-generated protein–molecule poses are physically plausible. It tests geometry, chemical structure, clashes, strain, and energy-related issues.

In plain words
What is it for?
Use it to filter docking results, compare classical and machine-learning docking outputs, and check poses before structure–activity analysis, free-energy calculations, or model training.
Why use it?
It catches poses that may look acceptable by a docking score or position alone but contain broken bonds, distorted shapes, or impossible contacts.

Skill for Claude CodeCodex

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

Good fit Use it to filter docking results, compare classical and machine-learning docking outputs, and check poses before structure–activity analysis, free-energy calculations, or model training.

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Install with agentmods
npx agentmods add skills/pku-yuangroup/openai4s/bio-chemoinformatics-pose-validation
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 PKU-YuanGroup/OpenAI4S --skill bio-chemoinformatics-pose-validation
Clone the repo
git clone --depth 1 https://github.com/PKU-YuanGroup/OpenAI4S

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-pose-validation

README.md
[![agentmods](https://agentmods.dev/badge/skills/pku-yuangroup/openai4s/bio-chemoinformatics-pose-validation/github.svg)](https://agentmods.dev/skills/pku-yuangroup/openai4s/bio-chemoinformatics-pose-validation)
Your own site
<a href="https://agentmods.dev/skills/pku-yuangroup/openai4s/bio-chemoinformatics-pose-validation"><img src="https://agentmods.dev/badge/skills/pku-yuangroup/openai4s/bio-chemoinformatics-pose-validation/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-pose-validation

Your own site · 80×15
<a href="https://agentmods.dev/skills/pku-yuangroup/openai4s/bio-chemoinformatics-pose-validation"><img src="https://agentmods.dev/badge/skills/pku-yuangroup/openai4s/bio-chemoinformatics-pose-validation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,852 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.
Origin 94% copy Near-identical to another mod 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 $0.00074 $0.03852
Opus 5 $0.00037 $0.01926
Sonnet 5 $0.00015 $0.00770
Haiku 4.5 $0.00007 $0.00385

Measured 8d ago against content hash 7c796c137582, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

bio-pose-validation 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 8d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/validate_poses.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.

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.

Origin

This is a copy

94% identical to bio-pose-validation — 12 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/bioskills/bio-chemoinformatics-pose-validation/SKILL.md · 302 lines

How it starts

The opening of the file, as written. The whole thing — 302 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Version Compatibility

Reference examples tested with: PoseBusters 0.6+, RDKit 2024.09+, pandas 2.2+, posecheck 0.5+ (optional).

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

  • Python: pip show <package> then help(module.function) to check signatures

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

Pose Validation

Test docked or AI-generated protein-ligand poses for physical plausibility. PoseBusters (Buttenschoen et al. 2024) provides geometric, chemical, and energetic checks that flag implausible poses, including non-planar aromatic rings, van der Waals clashes, broken bonds, altered stereochemistry, and unfavorable internal energies. On the Astex Diverse Set, DiffDock achieved 72% RMSD success but only 47% combined RMSD-and-PB-valid success; the size of this gap is dataset- and method-dependent. PB-valid status complements RMSD for downstream SAR, FEP setup, or generative-model training.

For docking, see chemoinformatics/virtual-screening. For ML docking specifically, see chemoinformatics/ml-docking-rescoring.

PoseBusters Test Suite

PoseBusters runs ~20 individual checks grouped into:

The thresholds below are the benchmark criteria reported by Buttenschoen et al. (2024). Installed PoseBusters defaults may differ by version and configuration, so record the package version and resolved configuration.

Check group What it tests 2024 benchmark criterion
Sanity Ligand chemical sanity RDKit sanitization passes
Bond lengths Bond lengths within reference 0.75–1.25 times RDKit distance-geometry bounds
Bond angles 1–3 distances within reference 0.75–1.25 times RDKit distance-geometry bounds
Internal steric No intra-ligand clash Pair distance > 0.70 times the RDKit lower bound
Aromatic ring planarity Aromatic rings planar Maximum deviation from fitted plane <= 0.25 Å
Double-bond stereo Z/E preserved Match input SMILES
Internal energy Energy relative to generated conformers UFF energy ratio <= 100 versus the mean of 50 generated, relaxed conformers
Volume overlap vdW overlap with protein < 7.5% of ligand vdW volume
Minimum distance No severe protein-ligand clash Distance >= 0.75 times the sum of vdW radii
Chirality R/S preserved from input Match input SMILES

Read the full file on GitHub · 302 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. 8d ago First seen · 302 lines · 74 tokens per session scan A 7c796c137582

Subscribe to this mod's changes

bio-pose-validation is a skill published in the GitHub repository PKU-YuanGroup/OpenAI4S (403 stars, last pushed today), licensed MIT. It adds 74 tokens to every session and 3,852 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 94% identical to bio-pose-validation, differing in 12 lines, and is treated as a copy.

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