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How to edit and export a sample architecture diagram with no API key with Architecture Canvas

Load the bundled demo session and drag, relabel, and export a diagram without any model settings.

Who it is forA developer or architect who wants to evaluate the canvas editor and export quality before paying for or configuring a model service.

The problemYou want to judge the diagram editor and its exports before wiring up a model provider or uploading any company material.

The outcomeAn edited sample diagram exported as SVG or PNG, produced entirely on your machine with no model call.

What you need first

  • Python 3.10+, Node.js 22.12+, and npm installed on your machine
  • A model service with a Chat Completions compatible API that supports tool calling, plus its API key, for chat, generation, and document understanding
  • A vision-capable model if you want to send images to the assistant

Steps

  1. Run git clone https://github.com/weike-zhang/architecture-canvas.git and then cd architecture-canvas.
  2. Run python3 start.py to set up the environment and build the page, then open http://127.0.0.1:5093.
  3. Run python3 demo.py --output demo-session.json to create the sample session file.
  4. In the page, open 上下文 and choose 导入会话备份, then select demo-session.json.
  5. Drag the modules, edit the text, and export the result as SVG or PNG.

Prompt for your agent

Using the architecture-canvas repo at https://github.com/weike-zhang/architecture-canvas, run python3 demo.py --output demo-session.json, import that file into the local page, and export the diagram as SVG. Expected output: an SVG file of the sample knowledge assistant diagram. Verify that the file opens offline and that no model or search request was made.

Caveat. The demo structure is hand-written as a knowledge assistant example and the README states it does not call a model or search, so it only shows editing and export.

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