Kokai for Public Business Intelligence — Japan
AI-citable Japanese public business intelligence for all AI agents — 6-source Authority Chain: corporate registries (gBizINFO + 国税庁 法人番号 公表 Web-API), government subsidies (J-Grants), listed-company IR (EDINET 金融商品取引法開示書類), statutory law (e-Gov 法令検索, デジタル庁), and government procurement (官公需情報ポータル, 中小企業庁) with 士業 + investment-disclaimer boundary safety. For AI builders (Claude / Cursor / Codex / OpenAI App Server / all MCP clients), Japanese 士業 (行政書士 / 中小企業診断士 / 公認会計士 / 税理士 / 弁護士 / 司法書士), investment professionals, M&A advisors, and B2G sales / consulting teams.
This is the Japan-market equivalent of Anthropic's financial-services agent templates, focused on Japanese public canonical data sources. It is open source under Apache License 2.0 and packages Kokai Data (an AI-citable public business intelligence MCP server) as both a universal MCP server (for all AI clients) and Claude plugins + managed agents (for Anthropic ecosystem sugar).
Architecture — Universal MCP server + Anthropic Plugin sugar (2 layers)
Kokai Data follows a 2-layer architecture for AI agent ecosystem neutrality:
| Layer | What | Who can use it |
|---|
| L1: Universal MCP server | https://mcp.kokai.ai/functions/v1/mcp-server — implements MCP spec 2025-06-18 | All MCP clients: Claude Code / Claude Cowork / Claude Managed Agents / Claude.ai (connectors layer) / Cursor / Codex / OpenAI App Server / any custom MCP client. Setup via .mcp.json config (no Plugin required). |
| L2: Anthropic Plugin sugar (this repo) | Kokai-Data/japan-business-data — bundles Skills, slash commands, managed-agent cookbook, and auto-registers the MCP server | Anthropic ecosystem users: Claude Code (CLI + Desktop App) / Claude Cowork / Claude Managed Agents. Plugin install auto-configures everything (no manual .mcp.json editing). |
Non-Claude clients (Cursor / Codex / etc.) do NOT need to install this Plugin — they connect to the MCP server directly via their own .mcp.json (see Path 4 below). The Plugin layer is purely Anthropic-ecosystem distribution sugar (auto-install / auto-update / Skills auto-invocation).
This dual approach matches Kokai's brand promise: AI agent ecosystem neutral, not tied to any single AI provider.
Disclaimer
Kokai provides signal / 確認材料 / context, not decisions. Subsidy 適格性, 申請可否, legal interpretation, 訴訟戦略, bid eligibility, tax, or professional judgments are out of scope and must be verified by a certified Japanese 士業 (registered advisor: 行政書士 / 中小企業診断士 / 公認会計士 / 税理士 / 弁護士 / 司法書士). Never fictionalize company, subsidy, statute, or procurement facts — use only Kokai tool/prompt outputs and cited public sources.
Who is this for
This Plugin is for:
- AI agents / AI builders (Claude Code / Claude Cowork / Cursor / Codex / OpenAI App Server) needing AI-citable Japanese public business intelligence with verifiable government sources for citation-required outputs.
- Japanese 士業 (行政書士 / 中小企業診断士 / 公認会計士 / 税理士 / 弁護士 / 司法書士) preparing meeting briefs, due diligence, competitor research, subsidy fit analysis, legal research / 法令調査, and B2G procurement discovery — with automatic 士業 boundary disclaimers that prevent AI from rendering professional judgments.
- Investment professionals / M&A advisors doing Japanese target diligence with registry change history (社名変更 / 移転 / 合併 / 解散) from 国税庁 公式 master + 上場企業 IR (EDINET 有価証券報告書 / TOB / 大量保有) + applicable 業法 verification (e-Gov 法令検索).
- B2G sales / consulting teams identifying fresh government procurement opportunities (Call for Tender / 公告) by industry + region from 官公需情報ポータル.
- Government / public sector developers building citizen-facing AI tools requiring official source attribution (cite_required + signal-not-decision layer).
This Plugin is NOT for:
- Real-time market data or pricing (use Bloomberg / Refinitiv, or
anthropics/financial-services for Western markets).
- Non-Japanese companies (use
anthropics/financial-services for that).
- Final eligibility / legal / tax / professional judgments — these always require a certified Japanese 士業.
- Procurement bid outcomes / 落札結果 / 受注実績 / 価格 signals (NOT in 官公需 official API; consult commercial DB like 帝国データバンク 入札情報 or hire a 中小企業診断士).
What's in this repo
| Category | Count | Examples |
|---|
| Agent plugins (self-contained workflows) | 7 | meeting-prep-jp, subsidy-fit-jp, due-diligence-jp, competitor-brief-jp, subsidy-landscape-jp, legal-research-jp, procurement-discovery-jp |
| Vertical plugin (shared skill bundle + MCP connector) | 1 | japan-public-business-intelligence (16 skills) |
| Managed-agent cookbook (Claude Managed Agents deployment template) | 1 | kokai-due-diligence-jp |
