alterlab-diffdock

alterlab-diffdock is a skill for Claude Code from AlterLab-IEU/AlterLab-Academic-Skills. It costs 77 tokens per session (4,249 once invoked), scanned A, a copy of diffdock, MIT.

A molecular-docking tool that predicts how a small molecule may fit into a protein’s three-dimensional structure. It also gives a confidence score for each predicted pose.

In plain words
What is it for?
Use it to dock compounds into protein structures, generate possible binding poses, or screen a compound library against a target.
Why use it?
Testing possible protein–molecule arrangements in the laboratory is costly and slow. Predicted poses can help researchers narrow down compounds for further study, but they do not measure binding strength.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python app/main.py.

Part of the alterlab-cheminformatics plugin — 12 skills shipped together

Good fit Use it to dock compounds into protein structures, generate possible binding poses, or screen a compound library against a target.

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/AlterLab-IEU/AlterLab-Academic-Skills
agentmods
npx agentmods add skills/alterlab-ieu/alterlab-academic-skills/alterlab-diffdock

Made for: Claude Code.

Or install alterlab-cheminformatics, the plugin that ships this one along with the rest of its 12 skills.

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 alterlab-diffdock

README.md
[![agentmods](https://agentmods.dev/badge/skills/alterlab-ieu/alterlab-academic-skills/alterlab-diffdock/github.svg)](https://agentmods.dev/skills/alterlab-ieu/alterlab-academic-skills/alterlab-diffdock)
Your own site
<a href="https://agentmods.dev/skills/alterlab-ieu/alterlab-academic-skills/alterlab-diffdock"><img src="https://agentmods.dev/badge/skills/alterlab-ieu/alterlab-academic-skills/alterlab-diffdock/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 alterlab-diffdock

Your own site · 80×15
<a href="https://agentmods.dev/skills/alterlab-ieu/alterlab-academic-skills/alterlab-diffdock"><img src="https://agentmods.dev/badge/skills/alterlab-ieu/alterlab-academic-skills/alterlab-diffdock.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 77 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,249 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 89% 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 $0.00077 $0.04249
Opus 5.5 $0.00031 $0.01700
Sonnet 5.5 $0.00015 $0.00850
Haiku 4.5 $0.00008 $0.00425

Measured 1mo ago against content hash fd19159e3b7a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

alterlab-diffdock 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 1mo ago.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/analyze_results.py, scripts/prepare_batch_csv.py, scripts/setup_check.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

89% identical to diffdock — 586 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/cheminformatics/alterlab-diffdock/SKILL.md · 500 lines

How it starts

The opening of the file, as written. The whole thing — 500 lines — stays where its author put it; the contents beside it link to each section on GitHub.

DiffDock: Molecular Docking with Diffusion Models

Overview

DiffDock is a diffusion-based deep learning tool for molecular docking that predicts 3D binding poses of small molecule ligands to protein targets. The repository's default model is DiffDock-L (Feb 2024); it is widely used for blind docking, though co-folding models (Boltz-2, Chai-1) and physics-based rescoring are now common complements, and predicted poses should be checked for physical validity (e.g. with PoseBusters).

Core Capabilities:

  • Predict ligand binding poses with high accuracy using deep learning
  • Support protein structures (PDB files) or sequences (via ESMFold)
  • Process single complexes or batch virtual screening campaigns
  • Generate confidence scores to assess prediction reliability
  • Handle diverse ligand inputs (SMILES, SDF, MOL2)

Key Distinction: DiffDock predicts binding poses (3D structure) and confidence (prediction certainty), NOT binding affinity (ΔG, Kd). Always combine with scoring functions (GNINA, MM/GBSA) for affinity assessment.

When to Use This Skill

This skill should be used when:

  • "Dock this ligand to a protein" or "predict binding pose"
  • "Run molecular docking" or "perform protein-ligand docking"
  • "Virtual screening" or "screen compound library"
  • "Where does this molecule bind?" or "predict binding site"
  • Structure-based drug design or lead optimization tasks
  • Tasks involving PDB files + SMILES strings or ligand structures
  • Batch docking of multiple protein-ligand pairs

Does NOT Trigger

Scenario Use Instead
Binding affinity / docking score on a cloud platform (AutoDock Vina) alterlab-rowan
MD simulation of a complex, pose-stability / RMSD over a trajectory alterlab-molecular-dynamics
Protein–protein or protein–nucleic-acid complex structure prediction alterlab-boltz or alterlab-chai
Predicting the apo protein structure itself (no ligand) alterlab-alphafold
Looking up measured protein–ligand affinities for the target alterlab-bindingdb

Read the full file on GitHub · 500 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. 1mo ago Changed · +13 lines fd19159e3b7a
  2. 1mo ago First seen · 487 lines · 77 tokens per session scan A 0ad3b6e710da

Subscribe to this mod's changes

alterlab-diffdock is a skill published in the GitHub repository AlterLab-IEU/AlterLab-Academic-Skills (78 stars, last pushed yesterday), licensed MIT. It adds 77 tokens to every session and 4,249 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 89% identical to diffdock, differing in 586 lines, and is treated as a copy.

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