Checkly Rewrites 13,000-Line Node.js Service to Go via Claude Code
September 11, 2026
Using Claude Code and a black-box test harness, Checkly migrated a 13,000-line JavaScript service to Go. The transition resulted in zero incidents and increased resource efficiency.
HOW THIS AFFECTS YOU
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builderYou can leverage agentic tools and test harnesses to perform massive, low-risk language migrations.