<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>Ondřej Úlehla – notes</title><description>Notes on building and measuring AI agents, from Ondřej Úlehla.</description><link>https://ulehla.dev/</link><language>en</language><item><title>Measuring agents like flights</title><link>https://ulehla.dev/notes/measuring-agents/</link><guid isPermaLink="true">https://ulehla.dev/notes/measuring-agents/</guid><description>A demo that works once tells you nothing. What pass rate, flakiness and cost per success taught me about building AI agents – and why none of it works without a clean room per run.</description><pubDate>Thu, 23 Jul 2026 00:00:00 GMT</pubDate></item></channel></rss>