edinet-document-search

When to use

Use this skill when:

• The user wants to see what disclosures a listed Japanese company filed recently.
• You need a date-bounded list of all 有価証券報告書 / 四半期報告書 / 大量保有報告書 / 公開買付届出書 etc. filed on a specific day or in a 90-day window.
• The user provides a 法人番号 (13-digit corporate number) and you want to confirm whether the company is listed (= has EDINET disclosures) before pulling further IR details.
• You're tracking 訂正報告書 / 取下書 events for signal monitoring.
• Pre-meeting research where past 開示履歴 matters (IR depth, governance signal).

How to invoke

Call the kokai MCP server's search_edinet_documents tool:

{
  "name": "search_edinet_documents",
  "arguments": {
    "date": "<YYYY-MM-DD>",
    "dateFrom": "<YYYY-MM-DD>",
    "dateTo": "<YYYY-MM-DD>",
    "docTypeCodes": ["120", "140", "350"],
    "edinetCode": "<E12345>",
    "corporateNumber": "<13-digit 法人番号>",
    "limit": 50
  }
}

Pass date for a single day OR dateFrom + dateTo for a range (max 90 days). docTypeCodes, edinetCode, corporateNumber are optional filters (combine freely). corporateNumber is auto-resolved to edinetCode via 30-day lookback (max 90).

Main docTypeCode (FSA 公式)

Code	Document
030	有価証券届出書
120	有価証券報告書 (annual)
130	訂正有価証券報告書
140	四半期報告書
150	訂正四半期報告書
160	半期報告書
180	臨時報告書 (extraordinary event)
235	内部統制報告書 (J-SOX)
240	公開買付届出書 (TOB)
350	大量保有報告書 (>5% holder)
360	訂正大量保有報告書

Full code list: 公式仕様書 ESE140206 別紙1 (https://disclosure2dl.edinet-fsa.go.jp/guide/static/disclosure/download/ESE140327.xlsx)

Output structure

For each document:

• docID (8 chars、書類管理番号、get_edinet_document で本体 download に使う)
• edinetCode (E12345 形式、提出者)
• secCode (証券コード、e.g. "7203")
• JCN (法人番号 13 桁、国税庁 SoT 直結)
• filerName (提出者商号)
• docTypeCode + docDescription
• submitDateTime / periodStart / periodEnd
• xbrlFlag / pdfFlag / csvFlag (本体取得 type 選択 hint)
• withdrawalStatus / docInfoEditStatus / disclosureStatus (修正・取下げ・不開示 signal)
• legalStatus (1=縦覧中 / 2=延長期間中 / 0=閲覧期間満了)
• source_authority: "official" (公式 cite_required layer)
• attribution_text: "出典: 金融庁 EDINET (https://disclosure2.edinet-fsa.go.jp)"

Differentiation from other Kokai sources

領域	gBizINFO	国税庁 (NTA)	J-Grants	EDINET (this)
法人特定	✅ (商業企業)	✅ (全法人 master)	—	✅ (上場企業のみ)
補助金	❌	—	✅	—
異動履歴	△	✅	—	△ (訂正報告書)
IR / 財務 / 株主	△ (公開財務のみ)	❌	—	✅ official
大量保有 disclosure	❌	❌	—	✅ official
TOB / M&A signal	❌	❌	—	✅ official

Pair with edinet-company-ir-tracker for company-level cluster view, or with get_edinet_document to download the binary file.

Boundary

• Output is signal / 確認材料 / context — NOT investment advice.
• 投資判断 / 法的判断 / 税務判断 requires a certified financial advisor / 公認会計士 / 弁護士 / 税理士.
• Cite attribution_text + submitDateTime + EDINET source in any final output.
• Never fictionalize. If EDINET returns 0 documents for a corporate number, the company is likely not listed (or has no disclosures in the lookback window).
• Public records only — EDINET data is open disclosure, not insider information.