molclaw-admet

molclaw-admet is a skill for Claude Code, Codex from InternScience/MolClaw. It costs 56 tokens per session (402 once invoked), scanned A, original, MIT.

A molecular-analysis tool that predicts ADMET properties: how a molecule may be absorbed, distributed, broken down, removed, and whether it may be toxic. It accepts SMILES strings or a file of SMILES strings.

In plain words
What is it for?
Screening candidate molecules for physicochemical properties, drug-likeness, and more than 90 predicted ADMET-related values.
Why use it?
It provides early computer estimates of drug-related properties before laboratory testing, helping identify molecules that may need further review.

Skill for Claude CodeCodex

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

Good fit Screening candidate molecules for physicochemical properties, drug-likeness, and more than 90 predicted ADMET-related values.

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Install with agentmods
npx agentmods add skills/internscience/molclaw/molclaw-admet
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-admet
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-admet

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/internscience/molclaw/molclaw-admet"><img src="https://agentmods.dev/badge/skills/internscience/molclaw/molclaw-admet.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 402 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 $0.00056 $0.00402
Opus 5.5 $0.00022 $0.00161
Sonnet 5.5 $0.00011 $0.00080
Haiku 4.5 $0.00006 $0.00040

Measured 1mo ago against content hash 667f0df528ae, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

molclaw-admet 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-admet/SKILL.md · 42 lines

What it actually says

ADMET Properties Prediction

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.

The description of tool pred_mol_admet.

Predict the ADMET (absorption, distribution, metabolism, excretion, and toxicity) properties of the input molecules from smiles list or file.
Args:
    smiles_list (List[str]): Required list of input SMILES strings; pass [] when using smiles_file
    smiles_file (str): Required path to a TXT/CSV SMILES file; pass '' when using smiles_list
Return:
    status (str): success/error
    msg (str): message
    json_content (List[Dcit]): List of dict, each containing the keys 'smiles', 'physicochemical', 'druglikeness' and 'admet_predictions', where 'admet_predictions' includes over 90 key-value pairs representing various molecular properties 
    json_file (str): Path to the json file saving the ADMET prediction results

How to use tool pred_mol_admet :

response = await client.session.call_tool(
    "pred_mol_admet",
    arguments={
        "smiles_list": smiles_list,
        "smiles_file": ''
    }
)
result = client.parse_result(response)
admet_predictions = result["json_content"]
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 · +26 tokens per session 667f0df528ae
  2. 1mo ago First seen · 43 lines · 30 tokens per session scan A 3a8d3cdfdf00

Subscribe to this mod's changes

molclaw-admet is a skill published in the GitHub repository InternScience/MolClaw (38 stars, last pushed 1mo ago), licensed MIT. It adds 56 tokens to every session and 402 once invoked, about $0.0002 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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