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Same feature, same verification, two architectures. What three coding-agent codebases converge on, and why Clean Architecture isn’t wrong, just answering the old question.” series: Grounded Code First of five articles in the **Grounded Code * series. Architecture principles for codebases primarily extended by agents.* I. The number nobody was measuring Same task. Same agent (Claude). Same final output, with Verification: ✅ on both runs. The difference is in the middle column. Metric agent-opt cl