What do I need to use Demo Data Generator?

The data model; The story the demo should tell; Volume; Language and storage; Locale.

Is Demo Data Generator free to use?

Yes — run it free in the browser playground (no API key needed for the sponsored trial, or bring any provider key), or install it into Claude Code, Cursor, ChatGPT and more via npx pm-claude-skills. MIT-licensed and open source.

Demo Data Generator

Q: How do I know the Demo Data Generator output is good?

The skill verifies itself against its own quality checks: The script is seeded and the same seed produces identical files; Every foreign key in the output points at a generated record; No child record is dated before its parent's creation; Every derived value is computed from its parts.

🔵 Stable🕐 updated 2026-10-18 ✅ 4/5 🔷 SkillSpec L3 pm-oss-launch

Use when asked to create demo data, seed a no-signup demo, generate fake but realistic data for screenshots, or fill a sandbox without using real customer data. Produces realistic, internally consistent fake data so a project can ship a demo nobody has to sign up for: a data schema summary, a seeded generation script, seed files, and a checklist confirming no real personal data is included.

▶ Run it free — no key needed 📝 Grade your existing draft ⬇ Add to Claude (works in Duet) 📱 Use as an app View SKILL.md ↗ What changed

🗣 Say this to your agent

“Generate demo data for my invoicing app so visitors don't need to sign up.”“Create realistic seed data for screenshots, no real people.”“Write a seeded script that fills my sandbox with consistent fake data.”“I need a no-signup demo. Make the data tell a story.”

What to give it

▸The data model — entities, fields, types and relationships (a schema file, migrations or ORM models)

▸The story the demo should tell — for example "a five-person design studio, three months in, one overdue invoice"

▸Volume — how many of each entity makes the demo feel alive without being slow

▸Language and storage — where the seed files will be loaded (JSON, CSV, SQL inserts)

▸Locale — names, currency, date and phone formats

✅ The bar it holds itself to

Every skill in this library self-verifies — these are this skill's own quality checks, straight from its definition.

✓The script is seeded and the same seed produces identical files

✓Every foreign key in the output points at a generated record

✓No child record is dated before its parent's creation

✓Every derived value is computed from its parts

✓The script fails loudly if a consistency check fails

✓Every item in the no-real-data checklist is ticked or explained

✓The story includes at least one edge case the demo should show

⚠️ What it refuses to do

**Copying production data and "anonymising" it.** Re-identification is easier than it looks; generate from scratch.

**Random everything.** Uniform randomness looks fake; real accounts have a few heavy users and many light ones.

**Unseeded generation.** Screenshots and tests drift every time the data is rebuilt.

**Real-looking emails at real domains.** Someone will receive the demo's password-reset email.

Install

npx pm-claude-skills add --agent claude   # or codex · cursor · gemini · hermes
# or one-line MCP (every skill, any client):
claude mcp add pm-skills -- npx -y -p pm-claude-skills pm-claude-skills-mcp

Related skills

🔌 Embed this skill

Drop this on your blog, docs, or site — it renders a "Run this skill" card:

<div data-pm-skill="demo-data-generator"></div>
<script src="https://mohitagw15856.github.io/pm-claude-skills/embed.js" async></script>

💬 Discussion

Demo Data Generator is one of 1326 open-source professional AI agent skills — all SkillSpec L3. Try them all in the browser · ⭐ Star on GitHub · Browse the full catalog