molclaw-protein-structure-retrieve

molclaw-protein-structure-retrieve is a skill for Claude Code, Codex from InternScience/MolClaw. It costs 106 tokens per session (919 once invoked), scanned A, original, MIT.

A workflow for finding and downloading a protein structure file in PDB or CIF format. It accepts a gene name, UniProt ID, or PDB ID; UniProt is a database of protein information, while PDB is a database and file format for three-dimensional structures.

In plain words
What is it for?
Retrieving a structure by gene name, including the organism and preferred sorting method, or by another supported protein identifier. The result is a path to the downloaded structure file.
Why use it?
It removes the need to search several biological databases manually before starting structure-based analysis. The chosen structure can be ranked by sequence coverage or experimental resolution.

Skill for Claude CodeCodex

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

Good fit Retrieving a structure by gene name, including the organism and preferred sorting method, or by another supported protein identifier. The result is a path to the downloaded structure file.

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Install with agentmods
npx agentmods add skills/internscience/molclaw/molclaw-protein-structure-retrieve
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 InternScience/MolClaw --skill molclaw-protein-structure-retrieve
Clone the repo
git clone --depth 1 https://github.com/InternScience/MolClaw

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 molclaw-protein-structure-retrieve

README.md
[![agentmods](https://agentmods.dev/badge/skills/internscience/molclaw/molclaw-protein-structure-retrieve/github.svg)](https://agentmods.dev/skills/internscience/molclaw/molclaw-protein-structure-retrieve)
Your own site
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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.

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Your own site · 80×15
<a href="https://agentmods.dev/skills/internscience/molclaw/molclaw-protein-structure-retrieve"><img src="https://agentmods.dev/badge/skills/internscience/molclaw/molclaw-protein-structure-retrieve.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 106 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 919 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found 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 $0.00106 $0.00919
Opus 5.5 $0.00042 $0.00368
Sonnet 5.5 $0.00021 $0.00184
Haiku 4.5 $0.00011 $0.00092

Measured 1mo ago against content hash b67e3b694aa8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

molclaw-protein-structure-retrieve 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.

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.

skills/L1_tools/molclaw-protein-structure-retrieve/SKILL.md · 101 lines

How it starts

The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Retrieve Protein Structure

Invocation

Use the exact tool name and parameter schema exposed by the current harness. Tool names in SDK examples below are raw MCP names, not model-facing aliases. Local files must be uploaded with molclaw-file-transfer before a server tool can use them. Repair PDB inputs first when the workflow requires it.

Scene 1: If the gene name is provided, please use tool retrieve_protein_structure_by_gene_name.

The description of tool retrieve_protein_structure_by_gene_name.

Retrieve and download a protein structure (.pdb or .cif) using a standard gene name.
Args:
    gene_name (str): Input gene name (e.g., 'TP53')
    organism (str): Required species NCBI Taxonomy ID (use 9606 for human or 10090 for mouse)
    sort_by (str): Required sorting strategy: 'length' prioritizes sequence coverage; 'resolution' prioritizes structural resolution.
Return:
    status (str): success/error
    msg (str): message
    prot_structure_path (str): Path to the downloaded .pdb or .cif structure file

How to use tool retrieve_protein_structure_by_gene_name :

response = await client.session.call_tool(
    "retrieve_protein_structure_by_gene_name",
    arguments={
        "gene_name": gene_name,
        "organism": "9606",
        "sort_by": "length"
    }
)
result = client.parse_result(response)
prot_structure_path = result["prot_structure_path"]

Scene 2: If the UniProt ID is provided, please use tool retrieve_protein_structure_by_uniprot_id.

The description of tool retrieve_protein_structure_by_uniprot_id.

Retrieve and download a protein structure (.pdb or .cif) using a UniProt ID.
Args:
    uniprot_id (str): Input uniprot id (e.g., 'P04637')
    sort_by (str): Required sorting strategy: 'length' prioritizes sequence coverage; 'resolution' prioritizes structural resolution.
Return:
    status (str): success/error
    msg (str): message
    prot_structure_path (str): Path to the downloaded .pdb or .cif structure file

Read the full file on GitHub · 101 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 · -1 lines · +67 tokens per session b67e3b694aa8
  2. 1mo ago First seen · 102 lines · 39 tokens per session scan A 2ff7ce0e7956

Subscribe to this mod's changes

molclaw-protein-structure-retrieve is a skill published in the GitHub repository InternScience/MolClaw (38 stars, last pushed 1mo ago), licensed MIT. It adds 106 tokens to every session and 919 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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