dummy-dataset

dummy-dataset is a skill for Claude Code from killvxk/pm-skills-zh. It costs 62 tokens per session (1,060 once invoked), scanned A, original, MIT.

A guide for generating realistic dummy datasets with chosen columns, rules, row counts, and output formats. Dummy data is made-up information used for development and testing instead of real user data.

In plain words
What is it for?
Use it to create sample customer, transaction, or profile records as CSV, JSON, SQL inserts, or an executable Python script.
Why use it?
It gives developers test data without waiting for production data or exposing real records. Rules and relationships help the sample data match the system being tested.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the pm-execution plugin — 15 skills, 10 commands shipped together

Good fit Use it to create sample customer, transaction, or profile records as CSV, JSON, SQL inserts, or an executable Python script.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/killvxk/pm-skills-zh/dummy-dataset
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 killvxk/pm-skills-zh --skill dummy-dataset
Clone the repo
git clone --depth 1 https://github.com/killvxk/pm-skills-zh

Made for: Claude Code.

Or install pm-execution, the plugin that ships this one along with the rest of its 15 skills, 10 commands.

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 dummy-dataset

README.md
[![agentmods](https://agentmods.dev/badge/skills/killvxk/pm-skills-zh/dummy-dataset/github.svg)](https://agentmods.dev/skills/killvxk/pm-skills-zh/dummy-dataset)
Your own site
<a href="https://agentmods.dev/skills/killvxk/pm-skills-zh/dummy-dataset"><img src="https://agentmods.dev/badge/skills/killvxk/pm-skills-zh/dummy-dataset/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for dummy-dataset

Your own site · 80×15
<a href="https://agentmods.dev/skills/killvxk/pm-skills-zh/dummy-dataset"><img src="https://agentmods.dev/badge/skills/killvxk/pm-skills-zh/dummy-dataset.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,060 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 $0.00062 $0.01060
Opus 5 $0.00031 $0.00530
Sonnet 5 $0.00012 $0.00212
Haiku 4.5 $0.00006 $0.00106

Measured 10d ago against content hash 9f4160248bbb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

dummy-dataset 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 10d ago.

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.

pm-execution/skills/dummy-dataset/SKILL.md · 115 lines

How it starts

The opening of the file, as written. The whole thing — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.

虚拟数据集生成

生成用于测试的逼真虚拟数据集,支持自定义列、约束条件及输出格式(CSV、JSON、SQL、Python 脚本)。生成可直接执行的脚本或数据文件,即开即用。

适用场景: 创建测试数据、生成示例数据集、为开发构建逼真的模拟数据,或填充测试环境。

参数:

  • $PRODUCT:产品或系统名称
  • $DATASET_TYPE:数据类型(如客户反馈、交易记录、用户画像)
  • $ROWS:生成的行数(默认:100)
  • $COLUMNS:需要包含的具体列或字段
  • $FORMAT:输出格式(CSV、JSON、SQL、Python 脚本)
  • $CONSTRAINTS:附加约束条件或业务规则

Step-by-Step Process(分步流程)

  1. 确定数据集类型 - 理解数据领域
  2. 定义列规格 - 名称、数据类型和取值范围
  3. 确定行数 - 需要多少条样本记录
  4. 选择输出格式 - CSV、JSON、SQL INSERT 或 Python 脚本
  5. 应用真实规律 - 确保数据看起来真实有效
  6. 添加业务约束 - 遵守业务逻辑和关联关系
  7. 生成或脚本化数据 - 创建可执行的输出
  8. 验证输出 - 确保数据质量和完整性

Template: Python Script Output(Python 脚本输出模板)

import csv
import json
from datetime import datetime, timedelta
import random

# 配置
ROWS = $ROWS
FILENAME = "$DATASET_TYPE.csv"

# 列定义及逼真值生成器
columns = {
    "id": "auto-increment",
    "name": "first_last_name",
    "email": "email",
    "created_at": "timestamp",
    # 添加更多列...
}

def generate_dataset():
    """生成逼真的虚拟数据集"""
    data = []
    for i in range(1, ROWS + 1):
        record = {
            "id": f"U{i:06d}",
            # 根据列定义生成值
        }
        data.append(record)
    return data

def save_as_csv(data, filename):
    """将数据集保存为 CSV 格式"""
    with open(filename, 'w', newline='') as f:
        writer = csv.DictWriter(f, fieldnames=data[0].keys())
        writer.writeheader()
        writer.writerows(data)

if __name__ == "__main__":
    dataset = generate_dataset()
    save_as_csv(dataset, FILENAME)
    print(f"已在 {FILENAME} 中生成 {len(dataset)} 条记录")

Example Dataset Specification(数据集规格示例)

数据集类型: 客户反馈

列:

  • feedback_id(自增,U001、U002……)
  • customer_name(真实姓名)
  • email(有效邮箱格式)
  • feedback_date(过去 90 天内的日期)
  • rating(1-5 星)
  • category(缺陷、功能请求、投诉、好评)
  • text(真实的反馈内容)
  • product(电子产品、服装、家居)

约束条件:

  • 评分分布偏斜:40% 五星,30% 四星,20% 三星,10% 一二星
  • 缺陷类别仅出现在 1-3 星评分中
  • 功能请求仅出现在 3-5 星评分中
  • 邮箱域名真实(gmail、yahoo、company.com)

Output Deliverables(输出交付物)

  • 可直接执行的 Python 脚本,或直接的数据文件
  • 格式正确、带表头的 CSV 文件
  • 结构有效、类型正确的 JSON 文件
  • 可在数据库中直接执行的 SQL INSERT 语句
  • 数据验证和约束条件合规
  • 真实、符合业务实际的数据值
  • 数据生成逻辑说明文档
  • 快速上手使用指南

Read the full file on GitHub · 115 lines

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. 10d ago First seen · 115 lines · 62 tokens per session scan A 9f4160248bbb

Subscribe to this mod's changes

dummy-dataset is a skill published in the GitHub repository killvxk/pm-skills-zh (158 stars, last pushed 5mo ago), licensed MIT. It adds 62 tokens to every session and 1,060 once invoked, about $0.0003 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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