danieldeusing
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Notes from the workbench

Software, tooling, and what it's like to run a one-person tech company.

The World Cup is over: Spain champions, my AI-managed fantasy team first by 104 points — and this closing piece audits the whole experiment. All eight report cards revisited: 103 graded match tips (62.1% winners, a floor held by 0.14), 984 graded lineup calls (81.8%, cleanly calibrated), every bug and overcorrection, what the title actually earned, where the AI added real value and where it merely matched the market — and what I'd tell you before you run the same play on a problem of yours.

~19 min read

The semifinals, graded in public: my World Cup fantasy AI called 0 of 2 winners — both games priced as coin flips by the market, both tipped as coin flips, both lost. Its postmortem concluded nothing needs to change, and after checking, I co-sign it. On telling outcome noise from process failure, retiring a KPI that can no longer be moved, and the starting-eleven pattern that expired.

~16 min read

The quarterfinals, graded in public: my World Cup fantasy AI called 4 of 4 winners with 3 exact scores — its best round yet, one round after its worst. And when the grader ran, all four tips had silently vanished from the scoreboard: a second format bug, one layer below the fix for the first. Plus the metric that punished a perfect round, and a league lead that grew from 55 to 95.

~18 min read

The Round of 16, graded in public: my World Cup fantasy AI called 2 of 8 winners — its worst round yet. Taken apart, the wreckage splits into a clerical bug that cost two correct calls, a safety rule that overshot, and coinflips lost fairly. Meanwhile the quiet half had its best round, and the league lead exploded from five points to fifty-five.

~20 min read

The first knockout round of grading my World Cup fantasy AI in public: I finally cleaned the scoreboard I said I couldn't trust, the score predictions got their sharpest yet — and the confidence discipline walked straight back into an old overconfidence trap it had just escaped.

~19 min read

Every morning a team of AI agents logs into my Comunio World Cup league, reads the real football news, fact-checks itself and leaves me one dashboard — plus a growing intelligence file on the rivals I'm bidding against.

~28 min read

A small team of AI agents researches, writes, fact-checks and translates a personalized morning paper for me — and explains every term I don't know with a real-life comparison.

~4 min read