molclaw-mol2mol-sampling

Generate structurally related molecule variants from seed SMILES inputs.

28|2|Updated Mar 31, 2026
One-click install
npx skills add https://github.com/InternScience/MolClaw --skill molclaw-mol2mol-sampling
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: molclaw-mol2mol-sampling
Source: https://github.com/InternScience/MolClaw/tree/main/skills/L1_tools/molclaw-mol2mol-sampling
Command: npx skills add https://github.com/InternScience/MolClaw --skill molclaw-mol2mol-sampling

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill generates structurally related variants from a starting molecule to accelerate lead optimization, scaffold hopping, and analog exploration while controlling similarity and scaffold preservation constraints.

Core Features & Use Cases

  • Single-molecule sampling: Create new molecules from one seed SMILES with configurable priors and similarity thresholds.
  • Batch sampling: Apply the same generation procedure to multiple seed molecules to produce per-seed derivative libraries.
  • Flexible priors and filtering: Support for similarity, medium_similarity, high_similarity, scaffold, scaffold_generic, and mmp priors with Lipinski and filter presets.
  • Rich outputs for downstream analysis: Produces validated SMILES lists and a CSV report containing similarity, MW, LogP, HBD, HBA, TPSA, and Lipinski violations for programmatic verification.
  • Operational guidance: Includes recommended n values, prior selection guidance, scaffold-preservation cautions, and mandatory generation count verification to avoid data fabrication.

Quick Start

Generate 30 scaffold-preserving analogs for the provided SMILES using the scaffold_generic prior and min_similarity 0.5.

Frequently Asked Questions about molclaw-mol2mol-sampling

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

FAQPage Schema
How do I generate scaffold-aware analogs from a seed SMILES string?

To generate scaffold-aware analogs, input a seed SMILES string and apply configurable priors like scaffold_generic with a minimum similarity threshold. The Skill outputs validated SMILES lists and a CSV report for downstream filtering.

What priors can I use for molecular optimization and scaffold hopping?

For molecular optimization and scaffold hopping, you can use similarity, medium_similarity, high_similarity, scaffold, scaffold_generic, and mmp priors. These priors help control structural constraints during molecule generation.

Can I generate derivative libraries from multiple seed molecules in batch?

Yes, you can perform batch sampling by applying the same generation procedure to multiple seed molecules. This produces per-seed derivative libraries, each with validated SMILES and calculated property reports.

Does the generated molecule output include drug-likeness and property filters?

Yes, the output includes Lipinski and filter presets, generating a CSV report with MW, LogP, HBD, HBA, TPSA, and Lipinski violations. This ensures generated variants meet standard drug-likeness criteria.

What is the recommended approach to verify molecule generation counts?

You must perform mandatory generation count verification to avoid data fabrication. The Skill provides operational guidance on recommended n values and prior selection to ensure accurate analog generation.