SMRTR ProgrammingSep 16, 2025Daily.dev

From 8 years down to 6 months: How we built AI to split the monday.com monolith

SMRTR summary

A decade's worth of code, trapped in a massive JavaScript monolith, has been freed in just six months by an AI system called Morphex at monday.com. What engineers initially estimated would take eight person-years of manual effort was accomplished in a fraction of the time.

"Without AI, we would probably have never set off to split the monolith, making the 8-year estimation feel more like a 'never'," note the team behind this ambitious project.

Morphex wasn't just raw AI power unleashed on code. The system combined artificial intelligence with traditional programming approaches, breaking the monolith extraction into small, verifiable steps with continuous validation.

The team created a unique workflow where Morphex would analyze files based on complexity and impact, extract them systematically, and even flag areas requiring human intervention with "Human Todos."

When uncertain about implementation changes, the AI would create feature flags to allow gradual rollout with monitoring.

Perhaps most impressive, once operational, Morphex extracted 1% of monday.com's client-side codebase in a single day—work that would have taken months manually.

The project demonstrates how AI can transform seemingly impossible engineering challenges when properly orchestrated with human oversight.

SMRTR provides this summary for quick context. The original article belongs to Daily.dev.

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