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Ligandmpnn

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ligandmpnn

Ligandmpnn is an Agent Skill for general use published in the companion-inc/feynman repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.

Design protein sequences around ligand or small-molecule contexts with LigandMPNN-style workflows. Use when a task asks for ligand-aware protein design, residue redesign, constraints, or design ranking.

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How to use this skill

Bring this guide into your coding agent with a prompt tailored to the tool you use.

  1. Open your project in Codex.
  2. Copy and paste the prompt below.
  3. Review files and risks before approving any action.
Prompt to paste
Inspect the Agent Skill at https://github.com/companion-inc/feynman/blob/HEAD/skills/ligandmpnn/SKILL.md and all supporting files. Report provenance, permissions, scripts, dependencies, and security risks. Propose an exact installation into .agents/skills/ligandmpnn, but wait for my approval before writing files or running scripts.

Copying this prompt does not install or run the skill. Review third-party files before use.

LigandMPNN

Use this skill for ligand-aware protein sequence design.

Workflow:

  1. Record the input structure, ligand identity, chain/residue design mask, fixed residues, symmetry, and design objective.
  2. Verify the execution route and model availability before running.
  3. Save input structure, ligand file, residue masks, command, seeds, model version, generated FASTA, and score tables.
  4. Filter outputs by constraint satisfaction, sequence diversity, known motifs, predicted structure confidence, and ligand-contact plausibility.
  5. Send shortlisted designs through an independent structural or literature/database check before presenting them as candidates.

Generated designs must remain tied to exact input structures and constraints.