Agent skill

Handsontable Demo Page Generator

by handsontable in handsontable/handsontable

Builds two throwaway HTML test pages for a Handsontable pull request, one on the released CDN version and one on the local build, to compare behavior side by side.

Custom licenceAuto-check passedDevelopment

Install Handsontable Demo Page Generator

skills CLI
$ npx skills add handsontable/handsontable --skill demo-page -a claude-code

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

GitHub CLI
$ gh skill install handsontable/handsontable demo-page --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/handsontable/handsontable.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/handsontable-demo-page .claude/skills/demo-page && 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/

Facts

Skill name
demo-page
GitHub stars
22k
Token cost
~1.8k tokens
SKILL.md length
418 words
Files
1
Skills in repo
31
Repo updated
First seen
Licence
Custom licence

At a glance

Builds two throwaway HTML test pages for a Handsontable pull request, one on the released CDN version and one on the local build, to compare behavior side by side.

  • Works in 4 steps: Analyze the PR context → Build Handsontable → Generate the two files → …
  • Creating a reproduction page for a Handsontable bug report
  • SKILL.md covers Step 1: Analyze the PR context, Step 2: Build Handsontable, Step 3: Generate the two files and Step 4: Serve and verify, plus 1 more section
  • Calls git, curl and npm; reaches cdn.jsdelivr.net

What it does

The agent reads the PR context, meaning the git log, the diff against the base branch and the linked GitHub issue's reproduction steps, to work out which plugins, editors, cell types and settings are involved and which interaction triggers the problem. It runs `npm run build --prefix handsontable` every time, then writes `dev-latest.html`, which loads the latest published version from jsDelivr, and `dev-pr.html`, which loads the local `dist/` build.

Each page links to the other from a nav bar, and the two files keep their JavaScript and CSS fully separate. Placeholders such as the released version number are filled from `handsontable/package.json`, or from the base branch when the PR bumped it. Both files sit at the package root, where a gitignore rule hides them, and are meant to be deleted and regenerated rather than committed.

When your agent uses it

  • Creating a reproduction page for a Handsontable bug report
  • Checking a fix visually before opening a pull request
  • Comparing a released version with a local build of the same component
  • Preparing a manual testing artifact for a PR

Example prompts

  • “Make a demo page that reproduces the merged-cells scrolling bug from the linked issue.”
  • “Create dev-latest and dev-pr pages so I can compare my fix with the released version.”
  • “I need a repro page for the nested headers bug so I can check it by hand.”

Requirements

  • A checkout of the Handsontable repository with git
  • Node.js and npm to run the build
  • Network access to the jsDelivr CDN

Workflow steps

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

  1. Analyze the PR context
  2. Build Handsontable
  3. Generate the two files
  4. Serve and verify

What it can do on your machine

Read from SKILL.md and the folder at commit fff66b1. 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

    Shell commands in SKILL.md call:

    • git
    • curl
    • npm
    • python3

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • cdn.jsdelivr.net

    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

Handsontable Demo Page Generator loads about 1.8k tokens when it runs. Until then it costs about 116 tokens; SKILL.md has 418 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~116
When it runs · the whole SKILL.md, loaded when a task matches
~1.8k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 418 words (~1,823 tokens).

“Generate two self-contained HTML pages at the package root, next to handsontable/package.json:”

— opening of SKILL.md by handsontable, Custom licence
name
demo-page

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .claude/skills/handsontable-demo-page of handsontable/handsontable.

Open the folder on GitHubat commit fff66b1

Compare with similar skills

Handsontable Demo Page Generator 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.

Handsontable Demo Page Generator compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Handsontable Demo Page Generator this skillhandsontable/handsontable22k—~1.8kAutomated safety check: PassCustom licence
Verdaccio Pull Request Workflowverdaccio/verdaccio18k—~1.9kAutomated safety check: PassMIT
ZCF Release AutomationUfoMiao/zcf6.1k—~3.4kAutomated safety check: PassMIT
Deploy Docstryonlabs/opentryon551—~1.2kAutomated safety check: NotesCustom licence
Prisma Release PRprisma/orm48k—~4kAutomated safety check: PassApache-2.0
Nylas Nodejs Releasenylas/nylas-nodejs181—~1.6kAutomated safety check: WarnMIT

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Works with

Questions about Handsontable Demo Page Generator

What does Handsontable Demo Page Generator do?

Builds two throwaway HTML test pages for a Handsontable pull request, one on the released CDN version and one on the local build, to compare behavior side by side. The agent reads the PR context, meaning the git log, the diff against the base branch and the linked GitHub issue's reproduction steps, to work out which plugins, editors, cell types and settings are involved and which interaction triggers the problem.html`, which loads the local `dist/` build.

When should I use Handsontable Demo Page Generator?

Handsontable Demo Page Generator fits situations like: creating a reproduction page for a Handsontable bug report; checking a fix visually before opening a pull request; comparing a released version with a local build of the same component; preparing a manual testing artifact for a PR.

How do I install Handsontable Demo Page Generator in Claude Code?

Run `npx skills add handsontable/handsontable --skill demo-page -a claude-code`. Or copy the skill folder (.claude/skills/handsontable-demo-page in handsontable/handsontable) into .claude/skills/demo-page in your project. Claude Code loads it when a task matches its description.

How do I install Handsontable Demo Page Generator in Codex?

Run `npx skills add handsontable/handsontable --skill demo-page -a codex`. Or copy the skill folder (.claude/skills/handsontable-demo-page in handsontable/handsontable) into .agents/skills/demo-page in your project. Codex loads it when a task matches its description.

Can I use Handsontable Demo Page Generator 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 handsontable/handsontable --skill demo-page -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/demo-page, .gemini/skills/demo-page, .github/skills/demo-page and .opencode/skills/demo-page in your project.

What does Handsontable Demo Page Generator need to run?

Going by SKILL.md and its folder, Handsontable Demo Page Generator needs the command-line tools its instructions call (git, curl, npm and python3). Our summary lists: A checkout of the Handsontable repository with git; Node.js and npm to run the build; Network access to the jsDelivr CDN.

Does Handsontable Demo Page Generator access the network?

SKILL.md names 1 domain. In commands or code: cdn.jsdelivr.net; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.

Is Handsontable Demo Page Generator 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 Handsontable Demo Page Generator use?

Handsontable Demo Page Generator has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Handsontable Demo Page Generator use?

About 1.8k tokens (SKILL.md is roughly 7.3k 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 Handsontable Demo Page Generator?

Skills that share tags, products or a category with Handsontable Demo Page Generator: Verdaccio Pull Request Workflow (verdaccio/verdaccio, 18k stars), ZCF Release Automation (UfoMiao/zcf, 6.1k stars), Deploy Docs (tryonlabs/opentryon, 551 stars) and Prisma Release PR (prisma/orm, 48k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Handsontable Demo Page Generator?

handsontable (a GitHub organization) maintains it in handsontable/handsontable, which has 22,060 GitHub stars. The repository holds 31 skills in this directory. The repository was last updated on October 8, 2026.

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