Keavi writing https://keavi.app/blog/ Essays and research from Keavi on building software with AI agents, with the numbers behind them. en-us Sat, 07 Nov 2026 12:00:00 GMT Your app already has a voice interface. It just can't hear yet. https://keavi.app/blog/voice-permeable-interfaces/ https://keavi.app/blog/voice-permeable-interfaces/ Sat, 07 Nov 2026 12:00:00 GMT Jon Yoder You don't need a new interface or a chat tab. The screens you already have can learn to listen. We've started calling that voice-permeable. voice-permeable The rule that didn't hold https://keavi.app/blog/the-rule-that-didnt-hold/ https://keavi.app/blog/the-rule-that-didnt-hold/ Tue, 03 Nov 2026 12:00:00 GMT Jon Yoder My long Claude Code sessions kept running past the handoff rule I pasted into them, so I built Stu. My cost per PR then fell by three quarters. Then I measured how much of that was Stu. stu ai