Hex shares lessons rewriting Hex 4.0 with coding agents

The engineering team at Hex shares lessons learned from utilizing coding agents to rewrite approximately 250,000 lines of code during their development of Hex 4.0. The authors detail practical strategies for working with AI agents, such as avoiding one-shot expectations, vigilantly managing API boundaries, leaving liberal TODOs during prototyping, and establishing statically verifiable exit criteria. Open article →