kokai-competitor-brief-prompt

kokai-competitor-brief-prompt is a skill for Claude Code from Kokai-Data/japan-business-data. It costs 78 tokens per session (355 once invoked), scanned A, original, Apache-2.0.

A structured prompt for preparing a competitor brief about a Japanese company. It uses a company’s 13-digit corporate number and organizes findings into business, scale, and certification sections.

In plain words
What is it for?
Summarizing a company’s business, products, founding date, headquarters, employees, finances, growth indicators, and certifications.
Why use it?
It turns scattered company research into a consistent comparison format. It provides context for research, not a valuation or market-share conclusion.

Skill for Claude Code

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

Part of the kokai-data plugin — 19 skills, 8 commands, 7 agents, 1 MCP server shipped together

Good fit Summarizing a company’s business, products, founding date, headquarters, employees, finances, growth indicators, and certifications.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kokai-data/japan-business-data/kokai-competitor-brief-prompt
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 Kokai-Data/japan-business-data --skill kokai-competitor-brief-prompt
Clone the repo
git clone --depth 1 https://github.com/Kokai-Data/japan-business-data

Made for: Claude Code.

Or install kokai-data, the plugin that ships this one along with the rest of its 19 skills, 8 commands, 7 agents, 1 MCP server.

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 kokai-competitor-brief-prompt

README.md
[![agentmods](https://agentmods.dev/badge/skills/kokai-data/japan-business-data/kokai-competitor-brief-prompt/github.svg)](https://agentmods.dev/skills/kokai-data/japan-business-data/kokai-competitor-brief-prompt)
Your own site
<a href="https://agentmods.dev/skills/kokai-data/japan-business-data/kokai-competitor-brief-prompt"><img src="https://agentmods.dev/badge/skills/kokai-data/japan-business-data/kokai-competitor-brief-prompt/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 kokai-competitor-brief-prompt

Your own site · 80×15
<a href="https://agentmods.dev/skills/kokai-data/japan-business-data/kokai-competitor-brief-prompt"><img src="https://agentmods.dev/badge/skills/kokai-data/japan-business-data/kokai-competitor-brief-prompt.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 78 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 355 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 $0.00078 $0.00355
Opus 5 $0.00039 $0.00178
Sonnet 5 $0.00016 $0.00071
Haiku 4.5 $0.00008 $0.00036

Measured 12d ago against content hash dbe297d5a202, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

kokai-competitor-brief-prompt 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 12d 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.

plugins/vertical-plugins/kokai-data/skills/kokai-competitor-brief-prompt/SKILL.md · 42 lines

What it actually says

When to use

Use this skill when:

  • The user asks for competitive landscape research, peer comparison, or M&A target benchmarking.
  • You have a 13-digit 法人番号 (corporate number) for the target company.

How to invoke

Request the kokai MCP server's kokai_competitor_corporate_brief_jp prompt:

{
  "name": "kokai_competitor_corporate_brief_jp",
  "arguments": {
    "corporate_number": "<13-digit 法人番号>"
  }
}

The prompt returns thinking instructions + embedded resources for 3-tier brief.

Output format

Present the 3 tiers:

  1. Overview tier: business summary, products, founding date, headquarters
  2. Scale tier: employee count, capital, sales, total assets, growth trajectory
  3. Certifications tier: えるぼし / くるみん / ISO / 業種別認証 等

Cite gBizINFO records by source_url + retrieved_at metadata.

Boundary

  • Output is signal / 確認材料 / context — NOT a decision.
  • M&A valuation / market share judgment / strategy decisions require professional advisors (financial advisor / consultant / 公認会計士).
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. 12d ago First seen · 42 lines · 0 tokens per session scan A dbe297d5a202

Subscribe to this mod's changes

kokai-competitor-brief-prompt is a skill published in the GitHub repository Kokai-Data/japan-business-data (2 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 78 tokens to every session and 355 once invoked, about $0.0004 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 2026-08-31.

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