molclaw-linker-sampling

Generate linker molecules connecting two warhead fragments for PROTAC design.

28|2|Updated Mar 31, 2026
One-click install
npx skills add https://github.com/InternScience/MolClaw --skill molclaw-linker-sampling
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: molclaw-linker-sampling
Source: https://github.com/InternScience/MolClaw/tree/main/skills/L1_tools/molclaw-linker-sampling
Command: npx skills add https://github.com/InternScience/MolClaw --skill molclaw-linker-sampling

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill provides a structured workflow to generate linker molecules that connect two warhead fragments, enabling rapid exploration of PROTACs, bivalent ligands, and fragment merging in drug discovery.

Core Features & Use Cases

  • Two-armed sampling: generates linkers using user-specified warheads with attachment points.
  • Predefined pairs: supports predefined warhead pairs for quick benchmarking.
  • Quality controls: enforces linker-length constraints, Lipinski-like filters, and robust result reporting with generated SMILES.
  • Use Case: a medicinal chemist samples 50 linker candidates to connect a benzene warhead to a piperazine warhead for PROTAC design, then selects promising scaffolds.

Quick Start

Provide two warhead fragments with a single attachment point and specify how many linker candidates to sample, or choose a predefined warhead pair name and the sample size.

Frequently Asked Questions about molclaw-linker-sampling

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate linker molecules for PROTAC design?

To generate linker molecules for PROTAC design, provide two warhead fragments with exactly one attachment point each and specify the number of candidates to sample. The tool outputs SMILES strings for the resulting bivalent ligand structures.

What is the best way to design linkers for fragment merging in drug discovery?

Designing linkers for fragment merging requires specifying warhead fragments with single attachment points and desired sample size. You can enforce linker-length constraints and apply Lipinski-like filters to ensure generated candidates meet drug-like quality standards.

Can I use predefined warhead pairs for bivalent ligand sampling?

Yes, you can use predefined warhead pairs for bivalent ligand sampling by selecting a predefined pair name and specifying the sample size. This enables rapid linker exploration and benchmarking without manually defining custom warhead fragments.

What constraints can I apply when sampling linker candidates between warheads?

When sampling linker candidates between warheads, you can apply minimum and maximum linker atom constraints alongside Lipinski-like molecular filters. These quality controls ensure generated linker scaffolds adhere to early-stage drug discovery parameters.

Do warhead fragments need a specific attachment point for linker generation?

Yes, warhead fragments require exactly one attachment point for linker generation. The tool uses this single connection site to properly join the two warhead fragments with the sampled linker molecule.

How many linker candidates should I sample for PROTAC linker exploration?

You should sample an integer number of linker candidates based on your exploration needs, such as 50 candidates to connect a benzene warhead to a piperazine warhead. Specify this integer to control the volume of generated SMILES structures.