Architecture Viewer MCP server

Architecture Viewer is a helper that looks at what your AI just changed in your code and tells you if the structure got worse. It compares the current state of your project to your last saved version (git HEAD) and points out things like new cross-layer calls or deleted types. It is handy if you let an AI write or edit code and want a quick sanity check before you save the changes.

What this MCP server does

You ask your AI to check the architecture after it edits your code. The AI calls this helper, which scans your project and compares it to your last saved version. The helper looks for things like new dependencies between layers, deleted types that other files relied on, or new outside packages. It then gives your AI a short verdict, usually a few lines, and your AI shows that to you in the chat. If something looks risky, you can ask the AI to explain the finding before you save anything.

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What you can do with it

• Check your project structure after an AI edit
• Spot new cross-layer dependencies the AI introduced
• See which files are affected by a change
• Get a short pass or fail verdict in the chat
• Ask for an explanation of a specific finding
• Compare the current code to your last saved version

Try asking your AI

• “Check the architecture after those edits”
• “Did my last change break any layers?”
• “Explain that risk finding you just showed me”
• “What files are affected by the changes in this session?”

What it gives back to you

You get a short verdict in the chat, usually up to three lines, telling you if the structure looks fine or if there is a risk. It can also list which files or modules are affected by the change. When there is a problem, it points to the specific paths and dependencies involved so you can check them yourself. You can ask for more detail if the short answer is not enough.

Before you start

Who it's for

Developers and engineers who use AI to write or edit code and want a quick structure check before saving their work.