raman-spectra-simulation

raman-spectra-simulation is a skill for Claude Code, Codex from InternScience/ChemClaw. It costs 26 tokens per session (605 once invoked), scanned A, original, MIT.

A Raman-spectrum simulator that uses a molecule given as SMILES or as an XYZ coordinate file. Raman spectroscopy identifies materials by showing how they interact with light; the tool calculates and plots a theoretical spectrum.

In plain words
What is it for?
Use it to optimize a molecular geometry, obtain a summarized theoretical Raman spectrum, create PNG plots, and compare calculated and experimental spectra.
Why use it?
It provides a calculated reference spectrum without requiring an experimental measurement first. An experimental spectrum can also be supplied for comparison.

Skill for Claude CodeCodex

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

Good fit Use it to optimize a molecular geometry, obtain a summarized theoretical Raman spectrum, create PNG plots, and compare calculated and experimental spectra.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/internscience/chemclaw/raman-spectra-simulation
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/ChemClaw --skill raman-spectra-simulation
Clone the repo
git clone --depth 1 https://github.com/InternScience/ChemClaw

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 raman-spectra-simulation

README.md
[![agentmods](https://agentmods.dev/badge/skills/internscience/chemclaw/raman-spectra-simulation.svg)](https://agentmods.dev/skills/internscience/chemclaw/raman-spectra-simulation)
Your own site
<a href="https://agentmods.dev/skills/internscience/chemclaw/raman-spectra-simulation"><img src="https://agentmods.dev/badge/skills/internscience/chemclaw/raman-spectra-simulation.svg" alt="Measured on agentmods" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 605 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.
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 $0.00026 $0.00605
Opus 5 $0.00013 $0.00302
Sonnet 5 $0.00005 $0.00121
Haiku 4.5 $0.00003 $0.00060

Measured 7d ago against content hash 19b9503edcb2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

raman-spectra-simulation 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 7d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (raman_spectra_simulation.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/raman-spectra-simulation/SKILL.md · 66 lines

How it starts

The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Raman Spectra Simulation Skill

When to use this

Use this skill when the user provides a SMILES or XYZ file (coordinates) and wants:

  • Optimized geometry
  • Theoretically calculated Raman spectrum in a summarized table
  • Quick overview of simulated Raman spectrum
  • Publication-ready image file

Inputs

  • SMILES string (e.g. CCO for ethanol) or XYZ file path (necessary)
  • A corresponding experimental Raman spectrum (optional, .txt format)

Outputs

  • /tmp/chemclaw/optimized_geometry.md
  • /tmp/chemclaw/theoretical_raman.md
  • /tmp/chemclaw/theoretical_raman.png
  • /tmp/chemclaw/exp_raman.png (optional, if experimental data provided)
  • /tmp/chemclaw/comparison_raman.png (optional, if experimental data provided)

Agent response

When returning results to the user, include the generated spectrum image(s) in the response so the user sees them directly. Use markdown image syntax with the correct path to the PNG file(s), e.g. ![Raman spectrum](path/to/theoretical_raman.png). Include comparison_raman.png if experimental data was provided.

New environment (from zero)

conda create -n spec python=3.12 -y
conda activate spec
conda install -c conda-forge xtb -y   # macOS 必装(MLatom 内建 xTB 为 Linux 版)
pip install mlatom numpy matplotlib pyscf geometric rdkit

cd raman-spectra-simulation
python raman_spectra_simulation.py CCO
# optional: python raman_spectra_simulation.py /path/to/structure.xyz
# optional: python raman_spectra_simulation.py CCO experimental_raman.txt
  • 请在 skill 目录内执行脚本。
  • macOS 若仍误用 MLatom 内建 Linux 版 xTB,可 export PATH="$CONDA_PREFIX/bin:$PATH" 让系统先找到 conda 的 xtb

How to use(已装好环境时)

SMILES:

cd raman-spectra-simulation
python raman_spectra_simulation.py CCO

XYZ(用户提供坐标文件):

cd raman-spectra-simulation
python raman_spectra_simulation.py /path/to/structure.xyz

含实验谱对照:

cd raman-spectra-simulation
python raman_spectra_simulation.py CCO experimental_raman.txt

Read the full file on GitHub · 66 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 7d ago First seen · 66 lines · 26 tokens per session scan A 19b9503edcb2

Subscribe to this mod's changes

raman-spectra-simulation is a skill published in the GitHub repository InternScience/ChemClaw (52 stars, last pushed 5mo ago), licensed MIT. It adds 26 tokens to every session and 605 once invoked, about $0.0001 per session on Opus 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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