Agent skill

Nanotube Generation

A skill your agent uses when the user asks to build a nanotube, roll up a 2D sheet into a tube, create a carbon nanotube (CNT), boron nitride nanotube (BNNT), or specify chiral indices (n, m).

AGPL-3.0Auto-check passed

Install Nanotube Generation

skills CLI

$ npx skills add Hello-QM/catgo-LRG --skill nanotube-generation -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install Hello-QM/catgo-LRG nanotube-generation --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/Hello-QM/catgo-LRG.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/structure-nanotube .claude/skills/nanotube-generation && rm -rf skills-src

Use ~/.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/

Paste into Claude Code

Install the "nanotube-generation" agent skill from https://github.com/Hello-QM/catgo-LRG/tree/main/.claude/skills/structure-nanotube into .claude/skills/nanotube-generation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nanotube-generation", 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

$skill-installer install https://github.com/Hello-QM/catgo-LRG/tree/main/.claude/skills/structure-nanotube

Type 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.

skills CLI

$ npx skills add Hello-QM/catgo-LRG --skill nanotube-generation -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install Hello-QM/catgo-LRG nanotube-generation --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Hello-QM/catgo-LRG.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/structure-nanotube .agents/skills/nanotube-generation && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "nanotube-generation" agent skill from https://github.com/Hello-QM/catgo-LRG/tree/main/.claude/skills/structure-nanotube into .agents/skills/nanotube-generation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nanotube-generation", 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.

skills CLI

$ npx skills add Hello-QM/catgo-LRG --skill nanotube-generation -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install Hello-QM/catgo-LRG nanotube-generation --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Hello-QM/catgo-LRG.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/structure-nanotube .cursor/skills/nanotube-generation && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "nanotube-generation" agent skill from https://github.com/Hello-QM/catgo-LRG/tree/main/.claude/skills/structure-nanotube into .cursor/skills/nanotube-generation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nanotube-generation", 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

$ gemini skills install https://github.com/Hello-QM/catgo-LRG.git --path .claude/skills/structure-nanotube

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add Hello-QM/catgo-LRG --skill nanotube-generation -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install Hello-QM/catgo-LRG nanotube-generation --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Hello-QM/catgo-LRG.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/structure-nanotube .gemini/skills/nanotube-generation && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "nanotube-generation" agent skill from https://github.com/Hello-QM/catgo-LRG/tree/main/.claude/skills/structure-nanotube into .gemini/skills/nanotube-generation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nanotube-generation", 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.

GitHub CLI

$ gh skill install Hello-QM/catgo-LRG nanotube-generation

Installs 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).

skills CLI

$ npx skills add Hello-QM/catgo-LRG --skill nanotube-generation -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/Hello-QM/catgo-LRG.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/structure-nanotube .github/skills/nanotube-generation && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "nanotube-generation" agent skill from https://github.com/Hello-QM/catgo-LRG/tree/main/.claude/skills/structure-nanotube into .github/skills/nanotube-generation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nanotube-generation", 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.

skills CLI

$ npx skills add Hello-QM/catgo-LRG --skill nanotube-generation -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install Hello-QM/catgo-LRG nanotube-generation --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Hello-QM/catgo-LRG.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/structure-nanotube .opencode/skills/nanotube-generation && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "nanotube-generation" agent skill from https://github.com/Hello-QM/catgo-LRG/tree/main/.claude/skills/structure-nanotube into .opencode/skills/nanotube-generation/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nanotube-generation", 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: nanotube-generation
GitHub stars: 205
Token cost: ~1.1k tokens
SKILL.md length: 402 words
Files: 1
Skills in repo: 75
Repo updated: Sep 22, 2026
First seen: Oct 7, 2026
Licence: AGPL-3.0

At a glance

A skill your agent uses when the user asks to build a nanotube, roll up a 2D sheet into a tube, create a carbon nanotube (CNT), boron nitride nanotube (BNNT), or specify chiral indices (n, m).

Works in 4 steps: Check nanotube geometry → Build the nanotube → Verify in viewer → …
The user asks to build a nanotube
SKILL.md covers Overview, Chirality Quick Reference, MCP Tools and Complete Workflow: (10,0)…, plus 3 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Nanotube Generation is an agent skill from Hello-QM/catgo-LRG. Use when the user asks to build a nanotube, roll up a 2D sheet into a tube, create a carbon nanotube (CNT), boron nitride nanotube (BNNT), or specify chiral indices (n, m).

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: AI-driven workbench for computational materials science — interactive 3D structure viewer, natural-language CatBot assistant, visual DAG workflow engine, HPC job submission… The licence is AGPL-3.0.

When your agent uses it

The user asks to build a nanotube
Roll up a 2D sheet into a tube
Create a carbon nanotube (CNT)
Boron nitride nanotube (BNNT)

Example prompts

“/nanotube-generation”

Workflow steps

4 steps, taken from the step headings in SKILL.md.

Check nanotube geometry
Build the nanotube
Verify in viewer
Relax with DFT

What it can do on your machine

Read from SKILL.md and the folder at commit fd6291b. 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
No scripts in the folder and no shell commands in SKILL.md (its code samples are json).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
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

Nanotube Generation loads about 1.1k tokens when it runs. Until then it costs about 48 tokens; SKILL.md has 402 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~48
When it runs · the whole SKILL.md, loaded when a task matches: ~1.1k

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); files beside SKILL.md are not scanned.

SKILL.md

The full file from Hello-QM/catgo-LRG at commit fd6291b, republished under its AGPL-3.0 licence (© Hello-QM). 402 words, ~1,063 tokens.

Download SKILL.mdSave it as .claude/skills/nanotube-generation/SKILL.md (or your agent's skills folder).

name: nanotube-generation
description: Use when the user asks to build a nanotube, roll up a 2D sheet into a tube, create a carbon nanotube (CNT), boron nitride nanotube (BNNT), or specify chiral indices (n, m).

Nanotube Generation

Overview

Nanotubes are formed by rolling a 2D sheet into a cylinder defined by chiral indices (n, m). The chirality determines electronic and mechanical properties.

Common applications:

Carbon nanotubes (CNTs): electronics, composites, catalysis
Boron nitride nanotubes (BNNTs): high-temperature insulation, radiation shielding
MoS2 / WS2 nanotubes: lubricants, batteries, photocatalysis
Custom 2D roll-ups: any 2D material loaded in the viewer

Chirality Quick Reference

Type	Condition	Electronic Character (CNT)
Armchair	n = m	Metallic
Zigzag	m = 0	Metallic if n mod 3 = 0, else semiconducting
Chiral	n != m, m != 0	Metallic if (n - m) mod 3 = 0, else semiconducting

MCP Tools

catgo_nanotube_info -- Query geometry before building

json

{"tool": "catgo_nanotube_info", "arguments": {
  "n": 10, "m": 0,
  "bond_length": 1.42
}}

Returns diameter, circumference, chiral angle, translational vector length, and estimated atom count without building the structure. Use this to check size before committing to a build.

catgo_nanotube_build -- Build the nanotube

json

{"tool": "catgo_nanotube_build", "arguments": {
  "n": 10, "m": 0,
  "length": 20.0,
  "bond_length": 1.42
}}

Parameter	Description	Default
`n`, `m`	Chiral indices	(required)
`length`	Tube length in Angstroms	one translational period
`bond_length`	C-C bond length in Angstroms	1.42

The tool accepts either a loaded 2D structure from the viewer or explicit lattice vectors / basis coordinates. For carbon nanotubes, the default graphene sheet is used automatically.

Router: `/nanotube/info` (POST), `/nanotube/build` (POST)

Complete Workflow: (10,0) Zigzag CNT Relaxation

Step 1: Check nanotube geometry

json

{"tool": "catgo_nanotube_info", "arguments": {
  "n": 10, "m": 0
}}

Verify the diameter (~7.8 A) and atom count are reasonable for DFT.

Step 2: Build the nanotube

json

{"tool": "catgo_nanotube_build", "arguments": {
  "n": 10, "m": 0,
  "length": 12.5
}}

Step 3: Verify in viewer

json

{"tool": "catgo_view", "arguments": {"action": "get_state"}}

Check: cylindrical geometry, no overlapping atoms, correct atom count.

Step 4: Relax with DFT

json

{"tool": "catgo_workflow_engine", "arguments": {
  "action": "create", "params": {"name": "(10,0) CNT relaxation"}
}}

json

{"tool": "catgo_workflow_engine", "arguments": {
  "action": "add_task", "params": {
    "workflow_id": "<wf_id>",
    "task_type": "geo_opt",
    "params": {"software": "vasp", "ENCUT": 520, "ISPIN": 1,
               "system_name": "CNT-10-0 relax"}
  }
}}

Show full SKILL.md (167 more words)Show less

Multi-walled Nanotubes (MWNT)

The backend supports multi-walled nanotubes via additional walls. Each wall is defined by its own chiral indices. The inter-wall spacing defaults to ~3.4 A (van der Waals distance for graphitic layers).

Non-Carbon Nanotubes

To build a BN nanotube or MoS2 nanotube:

Fetch or load the 2D monolayer structure (e.g., hexagonal BN)
The nanotube builder rolls up whatever 2D structure is loaded

json

{"tool": "catgo_fetch", "arguments": {
  "action": "crystal", "formula": "BN", "source": "mc3d"
}}

Then build the nanotube from the loaded structure.

Common Pitfalls

Large chiral indices (n > 30) produce structures with thousands of atoms. Check atom count with catgo_nanotube_info before building.
The tube length should be at least one translational period for meaningful periodic calculations.
For DFT on nanotubes, ensure sufficient vacuum in the non-periodic directions (at least 12-15 A between periodic images).
Bond length 1.42 A is for graphene/CNT. Use 1.45 A for BN, 2.42 A for MoS2.
Semiconducting CNTs require careful k-point sampling along the tube axis. Use at least 1x1x8 k-points for a single unit cell.

Files

Just SKILL.md in .claude/skills/structure-nanotube of Hello-QM/catgo-LRG.

Open the folder on GitHubat commit fd6291b

Compare with similar skills

Nanotube Generation 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.

Nanotube Generation compared with similar skills
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Nanotube Generation this skillHello-QM/catgo-LRG	205	—	~1.1k	Automated safety check: Pass	AGPL-3.0	18 days ago
Playwright Rollmicrosoft/playwright-dotnet	3k	—	~1.9k	Automated safety check: Pass	MIT	2 days ago
Bioconductor NanotubebioMate-AI/biomate-bioconductor-kb	804	—	~966	Automated safety check: Pass	Custom licence	3 mo ago
Release Cut And Demo Rollcarverauto/serviceradar	921	—	~3.9k	Automated safety check: Pass	Apache-2.0	today
Ib Find Short Rollstaskh/trading_skills	376	—	~1.2k	Automated safety check: Notes	MIT	12 days ago
Formax Rolling Plan Loop Workflowyusifeng/formax	194	—	~309	Automated safety check: Pass	MIT	2 mo ago

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Questions about Nanotube Generation

What does Nanotube Generation do?

A skill your agent uses when the user asks to build a nanotube, roll up a 2D sheet into a tube, create a carbon nanotube (CNT), boron nitride nanotube (BNNT), or specify chiral indices (n, m). Nanotube Generation is an agent skill from Hello-QM/catgo-LRG. Use when the user asks to build a nanotube, roll up a 2D sheet into a tube, create a carbon nanotube (CNT), boron nitride nanotube (BNNT), or specify chiral indices (n, m).

When should I use Nanotube Generation?

Nanotube Generation fits situations like: the user asks to build a nanotube; roll up a 2D sheet into a tube; create a carbon nanotube (CNT); boron nitride nanotube (BNNT).

How do I install Nanotube Generation in Claude Code?

Run `npx skills add Hello-QM/catgo-LRG --skill nanotube-generation -a claude-code`. Or copy the skill folder (.claude/skills/structure-nanotube in Hello-QM/catgo-LRG) into .claude/skills/nanotube-generation in your project. Claude Code loads it when a task matches its description.

How do I install Nanotube Generation in Codex?

Run `npx skills add Hello-QM/catgo-LRG --skill nanotube-generation -a codex`. Or copy the skill folder (.claude/skills/structure-nanotube in Hello-QM/catgo-LRG) into .agents/skills/nanotube-generation in your project. Codex loads it when a task matches its description.

Can I use Nanotube Generation 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 Hello-QM/catgo-LRG --skill nanotube-generation -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/nanotube-generation, .gemini/skills/nanotube-generation, .github/skills/nanotube-generation and .opencode/skills/nanotube-generation in your project.

What does Nanotube Generation need to run?

SKILL.md names no scripts, command-line tools or credentials: Nanotube Generation is instructions for the agent only.

Does Nanotube Generation access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Nanotube Generation 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. Review the folder before installing.

What licence does Nanotube Generation use?

Nanotube Generation is published under the AGPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Nanotube Generation use?

About 1.1k tokens (SKILL.md is roughly 4.3k 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 Nanotube Generation?

Skills that share tags, products or a category with Nanotube Generation: Playwright Roll (microsoft/playwright-dotnet, 3k stars), Bioconductor Nanotube (bioMate-AI/biomate-bioconductor-kb, 804 stars), Release Cut And Demo Roll (carverauto/serviceradar, 921 stars) and Ib Find Short Roll (staskh/trading_skills, 376 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Nanotube Generation?

Hello-QM (a GitHub user) maintains it in Hello-QM/catgo-LRG, which has 205 GitHub stars. The repository holds 75 skills in this directory. The repository was last updated on September 22, 2026.

Source: Hello-QM/catgo-LRG on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Nanotube Generation

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Nanotube Generation

Overview

Chirality Quick Reference

MCP Tools

catgo_nanotube_info -- Query geometry before building

catgo_nanotube_build -- Build the nanotube

Router: /nanotube/info (POST), /nanotube/build (POST)

Complete Workflow: (10,0) Zigzag CNT Relaxation

Step 1: Check nanotube geometry

Step 2: Build the nanotube

Step 3: Verify in viewer

Step 4: Relax with DFT

Multi-walled Nanotubes (MWNT)

Non-Carbon Nanotubes

Common Pitfalls

Files

Compare with similar skills

Similar skills

More from Hello-QM/catgo-LRG

Questions about Nanotube Generation

Router: `/nanotube/info` (POST), `/nanotube/build` (POST)