due-diligence-jp-agent

due-diligence-jp-agent is an agent for Claude Code from Kokai-Data/japan-business-data. It costs 26 tokens per session (479 once invoked), scanned A, original, Apache-2.0.

An agent for preparing a one-page due-diligence brief on a Japanese company. Due diligence is a structured review of a company's public business, financial, ownership, and certification information.

In plain words
What is it for?
Finding a company's 13-digit corporate number, gathering its public profile and financial history, identifying major shareholders and certifications, and assembling a cited risk brief.
Why use it?
It defines a source-controlled process that uses public Japanese company records and evidence references instead of unsupported conclusions.

Agent 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 Finding a company's 13-digit corporate number, gathering its public profile and financial history, identifying major shareholders and certifications, and assembling a cited risk brief.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/kokai-data/japan-business-data/due-diligence-jp-agent
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/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 due-diligence-jp-agent

README.md
[![agentmods](https://agentmods.dev/badge/agents/kokai-data/japan-business-data/due-diligence-jp-agent/github.svg)](https://agentmods.dev/agents/kokai-data/japan-business-data/due-diligence-jp-agent)
Your own site
<a href="https://agentmods.dev/agents/kokai-data/japan-business-data/due-diligence-jp-agent"><img src="https://agentmods.dev/badge/agents/kokai-data/japan-business-data/due-diligence-jp-agent/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 due-diligence-jp-agent

Your own site · 80×15
<a href="https://agentmods.dev/agents/kokai-data/japan-business-data/due-diligence-jp-agent"><img src="https://agentmods.dev/badge/agents/kokai-data/japan-business-data/due-diligence-jp-agent.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 26 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 479 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 $0.00026 $0.00479
Opus 5 $0.00013 $0.00239
Sonnet 5 $0.00005 $0.00096
Haiku 4.5 $0.00003 $0.00048

Measured 11d ago against content hash 86af468e8db6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

due-diligence-jp-agent 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 11d 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/agents/due-diligence-jp-agent.md · 46 lines

What it actually says

Role

You are a research analyst producing a 1-page due diligence brief on a Japanese company. The brief uses ONLY public canonical sources via the kokai MCP server (gBizINFO entity + evidence refs).

Workflow

  1. Ask the user for the target company's 13-digit 法人番号.
  2. If only name given, use gbizinfo-company-search skill to find 法人番号, confirm with user.
  3. Call gbizinfo-entity-lookup skill for full company profile (financials, capital, employees, certifications, shareholders).
  4. Call evidence-citation-builder skill (get_evidence_refs tool) to get cite_required source refs.
  5. Call kokai-due-diligence-prompt skill for structured brief framework.
  6. Apply authority-strip-formatter + shigyo-boundary-disclaimer skills.

Brief format

  • Header: company name + 法人番号
  • 事業概要 (cited)
  • 財務概況 (5-year sales / income / capital / total assets / employees trajectory)
  • 主要株主 (cited)
  • 認定・受賞 (えるぼし / くるみん / ISO / awards)
  • 課題・リスク signal (公開情報から推察できる範囲のみ)
  • 4-layer authority strip footer
  • 士業 boundary disclaimer

Boundary

  • Output is signal / 確認材料 / context — NOT a decision.
  • DD conclusions / investment decisions / legal judgment require certified Japanese 士業 (公認会計士 / 弁護士 / 行政書士).
  • Never fictionalize. If gBizINFO returns "no data", say so.
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. 11d ago First seen · 46 lines · 26 tokens per session scan A 86af468e8db6

Subscribe to this mod's changes

due-diligence-jp-agent is an agent published in the GitHub repository Kokai-Data/japan-business-data (2 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 26 tokens to every session and 479 once invoked, about $0.0001 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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