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Architecture documentation, explained
How to keep diagrams, decisions, and client handoffs accurate as the codebase changes. Written for agencies, founders, and engineering teams.
Aug 15
What is living architecture documentation?
Living architecture documentation stays accurate as the codebase changes — diagrams, decisions, and a shareable handoff instead of a slide deck that rots.
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How to generate an architecture diagram from a GitHub repo
Connect a GitHub repository, scan the codebase, and get a grounded architecture diagram — not a generic boxes-and-arrows template.
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Architecture decision records belong on the diagram
ADRs fail when they live in a folder nobody opens. Put the decision on the node it changes so onboarding and reviews see why, not just what.
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Client-ready architecture handoffs for agencies and founders
A handoff is not a ZIP of screenshots. It is a living portal: diagram, decisions, walkthrough video, and a link that still works after the next deploy.
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Arcobay vs Swimm: diagrams and decisions, not only snippet sync
Swimm shines at keeping code snippets in sync. Arcobay owns the visual architecture map, decisions on nodes, drift, and client handoffs.
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Arcobay vs IcePanel and Structurizr: code-first, not DSL-first
IcePanel and Structurizr excel at C4 models you maintain. Arcobay builds the diagram from the repository so you are not updating a DSL every sprint.
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PR architecture gate: catch undocumented change before merge
A PR architecture gate warns or blocks when a pull request changes system structure without updating the living diagram — like tests, but for the map.
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Architecture walkthrough video from a living diagram
Record the architecture once on the board, then export a walkthrough video for standups, investors, and clients — without re-filming after every sprint.
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