Measurements, not claims.
Most writing about AI agents describes what was built. Almost none of it reports what happened next, because reporting that means publishing a number that might be unflattering, and the number usually is.
Three rules decide whether something belongs here.
It has a denominator. A count of successes is not a measurement. “The memory fired 357 times” tells you nothing without the number of times it could have. Anything published here logs the attempts, not just the wins, which is what makes a rate possible at all.
It ships its data. Every post links the aggregates and the script that produced them, so the figures can be recomputed rather than believed. Where raw records can’t be published — usually because they carry private paths or client detail — the post says so and explains what was withheld.
It corrects itself in public. Instruments break quietly. When a number here turns out to be wrong, the correction goes into the piece it belongs to, with the evidence that exposed it, rather than into a quiet edit. Your Coding Agent Has Memory. Does It Actually Arrive? does that twice, and carries the erratum that convicted its own instrument.
That is a deliberately high bar and it means this section grows slowly. A short shelf of numbers that survived scrutiny is worth more than a long one that never faced any.
The shelf
- I Pulled Apart a Brand With 80 Facebook Pages. The Lesson Wasn’t About Ads.: One brand, about 80 Facebook pages, one product. Each page talks to a different buyer, and the numbers behind it
- Agent Notes About Open Bugs Go False. Fix Stories Don’t.: Agents re-checked 67 of the notes against the code. Open-bug notes were mostly false and fix stories rarely, with wide intervals
- I Counted Every Time Claude Code Auto Mode Said No: 251 denials in 110,629 tool calls, 13 of 71 rules ever fired, and a correct handoff that cost 42 hours
- I Build Analytics Tools. Mine Drew Me a Backwards Chart.: The default scroll report said deeper scroll converts better. It was page mix, and split by page it inverts
- My Bounce Rate Was 91%. One Robot Did That.: Across 29 domains the crawler mix varies wildly, and the biggest crawlers are invisible to analytics
- Your Coding Agent Has Memory. Does It Actually Arrive?: A measured 24.6% delivery rate, and two bugs found in the instrument that measured it