dvm-eahelper — LeanIX Enterprise Architecture Helper

Successor to dvm-leanix and dvm-eagraph, combined into a single package.

One CLI (eahelper) to:

• Run eahelper server — a GraphQL proxy to SAP LeanIX plus an embedded MCP server in a single process, with the debug browser managed automatically
• Extract the Bearer token from a managed (or your own) browser via Playwright CDP
• Download factsheets and relationships as JSON
• Load them into a graph database — KuzuDB (embedded, default) or Neo4j
• Query the graph from any MCP-aware tool (Claude Code, VS Code Copilot, ...)

Works on Windows and macOS.

Installation

Requires Python 3.11–3.13. Use Python 3.13, not 3.14 — KuzuDB does not yet publish Windows wheels for 3.14, so installation fails there on newer Pythons.

uv tool install --python 3.13 dvm-eahelper   # or: pip install dvm-eahelper (on a 3.13 interpreter)
uvx playwright install chromium              # one-time, for the proxy

Quick start

eahelper server

On first run this prompts for your LeanIX workspace URL and preferred graph database, saves the answers to ~/.eahelper/config.toml (so you're only asked once), launches a managed debug browser to capture a Bearer token, then closes it again. The server exposes the GraphQL proxy and an MCP endpoint on one port (default 8765).

eahelper download --relations   # auto-starts the server if it isn't running
eahelper load                   # prompts for DB backend the first time; then remembers it
eahelper load --db neo4j        # or choose explicitly

KuzuDB is embedded — no server needed; the database is a local directory (--db-path, or [graph].kuzu_path in config.toml, default ./eahelper-kuzu-db). For Neo4j, start your server and put NEO4J_URI, NEO4J_USERNAME, NEO4J_PASSWORD in a .env file (never in config.toml — no secrets are stored there).

Configuration

Settings are resolved in this order for every value: CLI flag → environment variable → ~/.eahelper/config.toml → interactive prompt (saved back to config.toml) → built-in default.

eahelper config              # show effective config
eahelper config path         # print the config file path
eahelper config set graph.db kuzu
eahelper config set leanix.workspace_url https://eu-10.leanix.net/YourWorkspace
eahelper config unset browser.browser

Sections: [leanix] workspace_url, proxy_port · [browser] browser, cdp_port, keep_open · [graph] db, kuzu_path, mcp_read_only · [neo4j] uri.

MCP (Model Context Protocol)

eahelper server mounts an MCP server at /mcp (streamable HTTP), exposing get_schema() and query(cypher) tools against your graph database. A stdio variant is also available for harnesses that spawn a subprocess:

eahelper mcp                      # stdio transport
eahelper mcp-config                # print Claude Code / VS Code config snippets
eahelper mcp-config --install      # write/merge .mcp.json and .vscode/mcp.json

Pass --mcp-read-only to eahelper server (or set [graph] mcp_read_only = true) to reject write Cypher queries.

Managed browser

By default, eahelper server launches and closes a debug browser automatically (persistent profile at ~/.eahelper/browser-profile, CDP port 19222) whenever a LeanIX token is needed, and never touches a browser it didn't start. Pass --keep-browser (or set [browser] keep_open = true) to leave it open.

If you prefer to manage the browser yourself, launch it manually and eahelper will connect to the existing CDP endpoint instead of starting a new one:

Windows (PowerShell, Edge — requires ALL other Edge windows closed first):

Start-Process "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" `
  "--remote-debugging-port=19222 --user-data-dir=C:\Temp\edge-debug --no-first-run --no-default-browser-check"

macOS (Chrome):

open -na "Google Chrome" --args --remote-debugging-port=19222 --user-data-dir="$HOME/chrome-debug"

Commands

download and load auto-start eahelper server in the background if it isn't already running.

Agent skill

An installable Agent Skill (Claude Code, GitHub Copilot, and other agentskills.io-compatible tools) that walks you through setup and usage lives at dvm-eahelper-skills.

To install it, clone that repo and copy the skill folder into your agent's skills directory:

git clone https://github.com/divyavanmahajan/dvm-eahelper-skills
cd dvm-eahelper-skills

# Claude Code — personal (all projects)
mkdir -p ~/.claude/skills && cp -R skills/eahelper ~/.claude/skills/eahelper

# Claude Code — this project only
mkdir -p .claude/skills && cp -R skills/eahelper .claude/skills/eahelper

# GitHub Copilot — personal (all projects)
mkdir -p ~/.copilot/skills && cp -R skills/eahelper ~/.copilot/skills/eahelper

# GitHub Copilot — this repo only
mkdir -p .github/skills && cp -R skills/eahelper .github/skills/eahelper

# Windows (PowerShell), e.g. Claude Code personal:
New-Item -ItemType Directory -Force "$HOME\.claude\skills" | Out-Null
Copy-Item -Recurse skills\eahelper "$HOME\.claude\skills\eahelper"

Then restart your agent (or start a new session) so it picks up the skill.

Migrating from dvm-leanix / dvm-eagraph

Token store moved from ~/.lean-ix/ to ~/.eahelper/.

License

MIT