abap-adt-mcp

abap-adt-mcp

Enables AI assistants like Claude Code to directly connect to SAP ABAP systems via the ADT REST API with read/write capabilities, featuring AI-friendly high-level tools and built-in safety measures such as read-only mode, prefix whitelisting, and automatic locking.

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abap-adt-mcp

Claude Code / Codex 直接連接 SAP ABAP ADT(ABAP Development Tools)REST API 的獨立 MCP server —— 不需要 VS Code、不需要 Eclipse,且具備完整讀寫能力

Claude Code ◄── stdio (MCP) ──► abap-adt-mcp ◄── HTTPS (ADT REST) ──► SAP 系統

為什麼做這個?

vscode_abap_remote_fs 是很棒的專案,但它的 MCP 模式有兩個限制:必須開著 VS Code 作為橋接層,而且 MCP 工具是唯讀的。市面上其他 standalone 方案則多半把 ADT API 一對一薄包裝,把 lock/unlock 等底層步驟直接丟給 AI 操作,容易出錯並留下殘留鎖定。

本專案的設計理念:封裝成「AI 友善」的高階工作流程工具。

  • write_source 一個工具內部自動完成:讀取現況 → 並行衝突檢查 → 語法檢查 → lock → 寫入 → unlock(try/finally 保證釋放)
  • 錯誤訊息經過翻譯,附帶可行動的建議(例如「請檢查 SICF 節點 /sap/bc/adt」),AI 能自行修正
  • 安全優先:唯讀模式、prod 系統強制唯讀、Z*/Y* 前綴白名單、audit log

功能(MVP)

工具 說明
ping_system 連線測試與診斷
search_objects 萬用字元搜尋 ABAP 物件
browse_package 瀏覽 package 內容
get_object_structure 物件結構(methods / includes)
read_source 讀取原始碼(含行號、分段讀取、截斷保護)
syntax_check 語法檢查(免鎖定)
list_transports 查詢可用 transport requests
write_source ✏️ 寫入原始碼(自動鎖定編排 + 並行保護 + 可選啟用)
activate_object ✏️ 啟用物件

✏️ = 寫入工具,唯讀模式下不會註冊(AI 完全看不到)。

系統需求

  • Node.js ≥ 20
  • SAP 系統已啟用 ADT(SICF 節點 /sap/bc/adt)— 已在 S/4HANA 2022 / ABAP 7.56 上以此為目標開發
  • SAP 使用者具備開發權限(S_DEVELOP)

快速開始(Claude Code)

# 1. 安裝
git clone https://github.com/<your-account>/abap-adt-mcp.git
cd abap-adt-mcp
npm install && npm run build

# 2. 註冊到 Claude Code(密碼建議用環境變數帶入,勿寫死)
claude mcp add abap \
  --env SAP_URL=https://your-sap-host:44300 \
  --env SAP_CLIENT=100 \
  --env SAP_USER=DEVELOPER \
  --env SAP_PASSWORD="$SAP_PASSWORD" \
  --env ABAP_MCP_SYSTEM_ROLE=dev \
  -- node /絕對路徑/abap-adt-mcp/dist/index.js

# 3. 在 Claude Code 中測試
# > 請用 ping_system 確認 SAP 連線

詳細設定(含 Codex、自簽憑證、唯讀模式)請見 docs/SETUP.md

環境變數

變數 必填 預設 說明
SAP_URL 例如 https://host:44300
SAP_USER / SAP_PASSWORD SAP 帳密(僅從環境變數讀取)
SAP_CLIENT '' 例如 100
SAP_LANGUAGE EN 登入語言
ABAP_MCP_READONLY false true 時不註冊寫入工具
ABAP_MCP_SYSTEM_ROLE dev dev/qa/prod;prod 強制唯讀
ABAP_MCP_ALLOWED_PREFIXES Z,Y,$ 可寫入的物件名稱前綴白名單
ABAP_MCP_ALLOW_SELF_SIGNED false 允許自簽憑證(限內網開發系統)
ABAP_MCP_AUDIT_LOG (停用) 寫入操作稽核紀錄檔路徑
ABAP_MCP_MAX_SOURCE_LINES 5000 read_source 回傳行數上限

安全設計

AI 直接寫入 SAP 系統風險很高,本專案內建多層防護,詳見 docs/SECURITY.md:

  1. 唯讀模式 — 寫入工具不註冊,而非「註冊後拒絕」
  2. prod 強制唯讀 — 設定 ABAP_MCP_SYSTEM_ROLE=prod 後無法以任何方式覆寫
  3. 前綴白名單 — 預設僅允許 Z* / Y* / $(本機物件),保護 SAP 標準物件
  4. 並行保護 — 寫入前比對先前讀取的版本,避免蓋掉他人變更
  5. 寫入前語法檢查 — 預設不讓語法錯誤的程式碼進系統
  6. Audit log — JSON Lines 紀錄所有寫入操作(不含憑證與原始碼內容)
  7. 鎖定保證釋放 — try/finally,不留殘留鎖定

開發

npm run build   # tsc 編譯
npm test        # vitest 單元測試(不需 SAP 系統)

Roadmap

  • Phase 2:create_object、ABAP Unit 測試、ATC、where-used
  • Phase 3:SQL 資料查詢(Data Preview)、ST22 dump 分析、DDIC 資訊
  • Phase 4:BTP ABAP Environment(JWT / Service Key)

致謝

License

MIT

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