Blog - R5 | AI Strategy, Engineering, and Fractional CTO Consultinghttps://rfive.ai/blog/Short articles on AI strategy, architecture, and machine learning engineering from Cesar Romero.Hugo -- gohugo.ioen-uscesar@rfive.ai (R5)Modernizing incrementallyhttps://rfive.ai/blog/modernizing-incrementally/Fri, 10 Jul 2026 00:00:00 +0000Cesar Romerohttps://rfive.ai/blog/modernizing-incrementally/A client recently asked whether they should modernize their monolithic web application incrementally or rewrite it from scratch to make it work better with AI agents.

I think that framing is too limiting because it ties the destination to the journey.

The destination is usually clear: a modern backend API, a modern frontend that consumes it, and an MCP server that exposes the same capabilities to AI agents without going through a UI designed for humans.

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