product-skills

product-skills is a plugin for Claude Code from yasunori0418/skills. Its manifest loads nothing; the 5 skills, 1 agent it bundles cost 502 tokens per session together, scanned A, original, MIT.

A group of product-development skills for translating business needs into specifications, designs, completion criteria, and integrated documentation. It also includes a product-research agent.

In plain words
What is it for?
Use it for product specification, basic design, business-to-product translation, definition of done, feature specification, and documentation integration.
Why use it?
It provides separate support for turning an idea into structured product work and keeping the related documents aligned. The supplied information does not describe each individual skill’s detailed behavior.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit Use it for product specification, basic design, business-to-product translation, definition of done, feature specification, and documentation integration.

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Install in Claude Code
/plugin marketplace add yasunori0418/skills/plugin install product-skills
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.

Clone the repo
git clone --depth 1 https://github.com/yasunori0418/skills

Made for: Claude Code.

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 product-skills

README.md
[![agentmods](https://agentmods.dev/badge/plugins/yasunori0418/skills/product.svg)](https://agentmods.dev/plugins/yasunori0418/skills/product)
Your own site
<a href="https://agentmods.dev/plugins/yasunori0418/skills/product"><img src="https://agentmods.dev/badge/plugins/yasunori0418/skills/product.svg" alt="Measured on agentmods" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 5 skills, 1 agent cost 502 tokens a session between them.
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.
Security

Grade A, and why

product-skills 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 2d 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.

skills/product/.claude-plugin/plugin.json · 20 lines

What it actually says

{
  "$schema": "https://json.schemastore.org/claude-code-plugin-manifest.json",
  "name": "product-skills",
  "description": "プロダクト業務スキル群(basic-design / biz-translate / def-done / feature-spec / product-spec)。ビジネス翻訳・仕様策定・基本設計・完成の定義を扱う。",
  "version": "0.3.0",
  "author": {
    "name": "yasunori0418"
  },
  "license": "MIT",
  "keywords": ["claude-code", "agentskills", "product"],
  "skills": [
    "./basic-design",
    "./biz-translate",
    "./def-done",
    "./feature-spec",
    "./product-spec"
  ],
  "agents": ["./product-spec/agents/product-researcher.md"]
}
Contents

What it installs

The manifest is a name and a version. 5 skills, 1 agent travel with it, and installing the plugin installs all of them — 502 tokens a session between them. Each is measured on its own page, and each can be installed alone.

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. 2d ago Changed · -1 lines a0b8dbe91035
  2. 7d ago First seen · 21 lines scan A 47f6b3b3f347

Subscribe to this mod's changes

product-skills is a plugin published in the GitHub repository yasunori0418/skills (9 stars, last pushed 2d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-08-31.