What we learned using AI agents to refactor a monolith
SMRTR summary
1Password applied AI agents to refactor their multi-million-line Go monolith, discovering agents excel at analysis and well-specified tasks but struggle with complex sequencing and interdependent decisions. They successfully used agents for codebase analysis and automated 3,000+ database transaction updates, but found service extraction required careful human oversight to avoid silent failures and incorrect assumptions.
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