Video Downloader
nexu-io/open-design
Download videos from YouTube and other platforms for offline viewing, editing, or archival with support for various formats and quality options.
Search and download experimental InfraRed (IR), Mass spectra, and UV-Vis spectra data (JCAMP-DX format) for molecules.
MITAuto-check passed
Install Chem DB Spectra
$ npx skills add learningmatter-mit/AtomisticSkills --skill chem-db-spectra -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install learningmatter-mit/AtomisticSkills chem-db-spectra --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/learningmatter-mit/AtomisticSkills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/chem-db-spectra .claude/skills/chem-db-spectra && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "chem-db-spectra" agent skill from https://github.com/learningmatter-mit/AtomisticSkills/tree/main/skills/chem-db-spectra into .claude/skills/chem-db-spectra/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "chem-db-spectra", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/learningmatter-mit/AtomisticSkills/tree/main/skills/chem-db-spectraType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add learningmatter-mit/AtomisticSkills --skill chem-db-spectra -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install learningmatter-mit/AtomisticSkills chem-db-spectra --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/learningmatter-mit/AtomisticSkills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/chem-db-spectra .agents/skills/chem-db-spectra && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "chem-db-spectra" agent skill from https://github.com/learningmatter-mit/AtomisticSkills/tree/main/skills/chem-db-spectra into .agents/skills/chem-db-spectra/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "chem-db-spectra", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add learningmatter-mit/AtomisticSkills --skill chem-db-spectra -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install learningmatter-mit/AtomisticSkills chem-db-spectra --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/learningmatter-mit/AtomisticSkills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/chem-db-spectra .cursor/skills/chem-db-spectra && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "chem-db-spectra" agent skill from https://github.com/learningmatter-mit/AtomisticSkills/tree/main/skills/chem-db-spectra into .cursor/skills/chem-db-spectra/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "chem-db-spectra", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/learningmatter-mit/AtomisticSkills.git --path skills/chem-db-spectra--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add learningmatter-mit/AtomisticSkills --skill chem-db-spectra -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install learningmatter-mit/AtomisticSkills chem-db-spectra --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/learningmatter-mit/AtomisticSkills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/chem-db-spectra .gemini/skills/chem-db-spectra && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "chem-db-spectra" agent skill from https://github.com/learningmatter-mit/AtomisticSkills/tree/main/skills/chem-db-spectra into .gemini/skills/chem-db-spectra/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "chem-db-spectra", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install learningmatter-mit/AtomisticSkills chem-db-spectraInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add learningmatter-mit/AtomisticSkills --skill chem-db-spectra -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/learningmatter-mit/AtomisticSkills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/chem-db-spectra .github/skills/chem-db-spectra && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "chem-db-spectra" agent skill from https://github.com/learningmatter-mit/AtomisticSkills/tree/main/skills/chem-db-spectra into .github/skills/chem-db-spectra/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "chem-db-spectra", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add learningmatter-mit/AtomisticSkills --skill chem-db-spectra -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install learningmatter-mit/AtomisticSkills chem-db-spectra --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/learningmatter-mit/AtomisticSkills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/chem-db-spectra .opencode/skills/chem-db-spectra && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "chem-db-spectra" agent skill from https://github.com/learningmatter-mit/AtomisticSkills/tree/main/skills/chem-db-spectra into .opencode/skills/chem-db-spectra/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "chem-db-spectra", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
chem-db-spectra- GitHub stars
- 176
- Token cost
- ~529 tokens
- SKILL.md length
- 214 words
- Files
- 6 (incl. scripts)
- Skills in repo
- 129
- Repo updated
- First seen
- Licence
- MIT
At a glance
Search and download experimental InfraRed (IR), Mass spectra, and UV-Vis spectra data (JCAMP-DX format) for molecules.
- SKILL.md covers Goal, Instructions, Constraints and References
- Runs Python scripts from its folder
What it does
Chem DB Spectra is an agent skill from learningmatter-mit/AtomisticSkills. Search and download experimental InfraRed (IR), Mass spectra, and UV-Vis spectra data (JCAMP-DX format) for molecules.
Its SKILL.md is about 530 tokens, which your agent loads only when the skill is triggered. The skill folder holds 9 other files, including scripts (for example `examples/tutorial/README.md` and `scripts/query_spectra.py`).
The repository describes itself as: Integrating AtomisticSkills into Agentic IDEs (Cursor, Claude Code, Codex, Google Antigravity, Hermes Agent, etc). The licence is MIT.
Example prompts
- “/chem-db-spectra”
Requirements
- Python 3
What it can do on your machine
Read from SKILL.md and the folder at commit 6257444. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 1 file in scripts/ (Python), which the agent can run.
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
webbook.nist.govjcamp-dx.orggithub.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Chem DB Spectra loads about 529 tokens when it runs. Until then it costs about 34 tokens; SKILL.md has 214 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.
SKILL.md
The full file from learningmatter-mit/AtomisticSkills at commit 6257444, republished under its MIT licence (© learningmatter-mit). 214 words, ~529 tokens.
Download SKILL.mdSave it as
.claude/skills/chem-db-spectra/SKILL.md (or your agent's skills folder). This skill also uses 5 other files; get the full folder from GitHub.- name
- chem-db-spectra
- description
- Search and download experimental InfraRed (IR), Mass spectra, and UV-Vis spectra data (JCAMP-DX format) for molecules.
- metadata.category
- chemistry
- metadata.venv
- cpu
chem-db-spectra
Goal
To query experimental molecular spectra—such as Infrared (IR), Mass Spectrometry, and UV-Vis—from standard experimental databases like the NIST Chemistry WebBook for baseline comparison against properties computed via MLIPs or DFT.
Instructions
Step 1. Query Spectra Data
Use the query_spectra.py script to fetch available spectrographic data for a given chemical formula. The script automatically searches the NIST Chemistry WebBook, resolves the compound, and downloads all available JCAMP-DX (.jdx) formatted spectra into the specified directory.
${CLAUDE_SKILL_DIR}/../../venv/run cpu python ${CLAUDE_SKILL_DIR}/scripts/query_spectra.py <formula> <output_dir> [--type {IR,Mass,UVVis,All}]Parameters:
formula: The chemical formula to query (e.g.,CH4,C2H6O).output_dir: The directory path to save the downloaded JCAMP-DX (.jdx) spectrum files.--type: Filter the spectrum type to download (options:IR,Mass,UVVis,All). Default isAll.
Constraints
- Environments: The scripts require the
cpuenvironment. - Spectrum Format: Output data is universally saved in JCAMP-DX (
.jdx) standard format. You must use appropriate spectroscopic python package (e.g.,jcamp) if you need to parse it back into numpy arrays. - Scraping Dependability: This script utilizes HTML scraping (
beautifulsoup4). If the NIST WebBook layout changes in the future, the selectors may need to be updated.
References
- Linstrom, P.J. and Mallard, W.G., Eds., NIST Chemistry WebBook, NIST Standard Reference Database Number 69, National Institute of Standards and Technology, Gaithersburg MD. URL
- JCAMP-DX for Infrared, Raman, and Related Data. URL
Author: Bowen Deng Contact: GitHub @learningmatter-mit
© learningmatter-mit, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 5 other files (scripts) in skills/chem-db-spectra of learningmatter-mit/AtomisticSkills.
- SKILL.md
- examples/tutorial/README.md
- examples/tutorial/output_spectra/C74828_IR_0.jdx
- examples/tutorial/output_spectra/C74828_IR_1.jdx
- examples/tutorial/output_spectra/C74828_Mass_0.jdx
- scripts/query_spectra.py
Open the folder on GitHubat commit 6257444
Compare with similar skills
Chem DB Spectra next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Chem DB Spectra this skilllearningmatter-mit/AtomisticSkills | 176 | — | ~529 | Automated safety check: Pass | MIT | |
| Video Downloadernexu-io/open-design | 100k | — | ~339 | Automated safety check: Pass | Apache-2.0 | |
| Video Downloadcalesthio/OpenMontage | 65k | — | ~885 | Automated safety check: Pass | AGPL-3.0 | |
| YouTube Video DownloaderComposioHQ/awesome-claude-skills | 77k | 10 repos | ~668 | Automated safety check: Pass | None | |
| Video Downloaderdavila7/claude-code-templates | 32k | 5 repos | ~660 | Automated safety check: Pass | MIT | |
| Export Download Debuggingnexu-io/open-design | 100k | — | ~725 | Automated safety check: Pass | Apache-2.0 |
Similar skills
Video Download
calesthio/OpenMontage
Download video and audio from YouTube and 1000+ sites using yt-dlp.
YouTube Video Downloader
ComposioHQ/awesome-claude-skills
Downloads a single YouTube video with chosen quality, format or audio-only MP3 output, using a bundled Python script built on yt-dlp.
Video Downloader
davila7/claude-code-templates
Downloads videos from YouTube and other platforms for offline viewing, editing, or archival.
Export Download Debugging
nexu-io/open-design
Diagnose and fix browser, preview, or Electron export/download failures, especially image export issues involving Save As, Blob/Data URLs, the File System Access API, createWritable failures, and 0…
Experimental Design
aiming-lab/AutoResearchClaw
Best practices for designing reproducible ML experiments. An agent skill from aiming-lab/AutoResearchClaw.
More from learningmatter-mit/AtomisticSkills
All 129 skills in this repoDrug Binding Site Definition
learningmatter-mit/AtomisticSkills
Define a docking search box (center coordinates + box dimensions in Angstroms) from a co-crystal ligand, binding-site residues, or a saved JSON specification.
Drug Complex System Builder
learningmatter-mit/AtomisticSkills
Build a solvated, charge-neutralized protein-ligand complex for OpenMM molecular dynamics simulation.
Drug Pocket Detection
learningmatter-mit/AtomisticSkills
Identify and rank ligandable pockets on a protein structure or model using geometry (fpocket) or an ML predictor (P2Rank).
Chem Bond Dissociation
learningmatter-mit/AtomisticSkills
Calculate homolytic and heterolytic bond dissociation energies (BDEs) for all single bonds in a molecule using MLIPs with RDKit fragmentation.
Chem Conformer Search
learningmatter-mit/AtomisticSkills
Generate molecular conformers with RDKit ETKDG, relax with MLIPs, and rank by energy with Boltzmann weighting.
Chem DB Mof
learningmatter-mit/AtomisticSkills
Query multiple MOF databases (QMOF via MPContribs; ARC-MOF DB7/Majumdar et al.
Questions about Chem DB Spectra
What does Chem DB Spectra do?
Search and download experimental InfraRed (IR), Mass spectra, and UV-Vis spectra data (JCAMP-DX format) for molecules. Chem DB Spectra is an agent skill from learningmatter-mit/AtomisticSkills. Search and download experimental InfraRed (IR), Mass spectra, and UV-Vis spectra data (JCAMP-DX format) for molecules.
How do I install Chem DB Spectra in Claude Code?
Run `npx skills add learningmatter-mit/AtomisticSkills --skill chem-db-spectra -a claude-code`. Or copy the skill folder (skills/chem-db-spectra in learningmatter-mit/AtomisticSkills) into .claude/skills/chem-db-spectra in your project. Claude Code loads it when a task matches its description.
How do I install Chem DB Spectra in Codex?
Run `npx skills add learningmatter-mit/AtomisticSkills --skill chem-db-spectra -a codex`. Or copy the skill folder (skills/chem-db-spectra in learningmatter-mit/AtomisticSkills) into .agents/skills/chem-db-spectra in your project. Codex loads it when a task matches its description.
Can I use Chem DB Spectra in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add learningmatter-mit/AtomisticSkills --skill chem-db-spectra -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/chem-db-spectra, .gemini/skills/chem-db-spectra, .github/skills/chem-db-spectra and .opencode/skills/chem-db-spectra in your project.
What does Chem DB Spectra need to run?
Going by SKILL.md and its folder, Chem DB Spectra needs Python for the scripts in its folder. Our summary lists: Python 3.
Does Chem DB Spectra access the network?
SKILL.md names 3 domains. As links in the text: webbook.nist.gov, jcamp-dx.org and github.com. This is read from the text; nothing was executed.
Is Chem DB Spectra safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Chem DB Spectra use?
Chem DB Spectra is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Chem DB Spectra use?
About 529 tokens (SKILL.md is roughly 2.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Chem DB Spectra?
Skills that share tags, products or a category with Chem DB Spectra: Video Downloader (nexu-io/open-design, 100k stars), Video Download (calesthio/OpenMontage, 65k stars), YouTube Video Downloader (ComposioHQ/awesome-claude-skills, 77k stars) and Video Downloader (davila7/claude-code-templates, 32k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Chem DB Spectra?
learningmatter-mit (a GitHub organization) maintains it in learningmatter-mit/AtomisticSkills, which has 176 GitHub stars. The repository holds 129 skills in this directory. The repository was last updated on October 7, 2026.
Source: learningmatter-mit/AtomisticSkills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.