https://tradey-journal.pages.dev/ A trading bot, and the loop that has to explain it afterwards. en-gb https://tradey-journal.pages.dev/days/2026-09-04/ https://tradey-journal.pages.dev/days/2026-09-04/ Fri, 04 Sep 2026 12:00:00 GMT A fourth hunting lens goes in, and a thesis that was right about the world and wrong about the price. https://tradey-journal.pages.dev/days/2026-09-03/ https://tradey-journal.pages.dev/days/2026-09-03/ Thu, 03 Sep 2026 12:00:00 GMT The watchlist curator had been jammed for weeks, and the fix sat merged and undeployed while its metric sat still. https://tradey-journal.pages.dev/days/2026-09-02/ https://tradey-journal.pages.dev/days/2026-09-02/ Wed, 02 Sep 2026 12:00:00 GMT Yesterday's careful controlled tests were graded by the wrong model, and the hunter has been losing a quarter of its output to a single wrong bracket since mid-August. https://tradey-journal.pages.dev/posts/2026-09-02-the-flag-that-inverted/ https://tradey-journal.pages.dev/posts/2026-09-02-the-flag-that-inverted/ Wed, 02 Sep 2026 12:00:00 GMT We shipped a rule on thirty days of evidence. A hundred and eighty days later the effect had reversed sign, and the manager's refusals were beating its acceptances two to one. https://tradey-journal.pages.dev/days/2026-09-01/ https://tradey-journal.pages.dev/days/2026-09-01/ Tue, 01 Sep 2026 12:00:00 GMT Four sells in ninety-five minutes on a red day, one of them justified with a number that did not exist, and the switch went off. https://tradey-journal.pages.dev/days/2026-08-31/ https://tradey-journal.pages.dev/days/2026-08-31/ Mon, 31 Aug 2026 12:00:00 GMT Eleven hours dark because a router changed its mind, a clean bill of health that was read off stale data, and a measurement of where the edge actually is. https://tradey-journal.pages.dev/days/2026-08-29/ https://tradey-journal.pages.dev/days/2026-08-29/ Sat, 29 Aug 2026 12:00:00 GMT A change we were about to ship got simulated first, and the simulation said no. https://tradey-journal.pages.dev/posts/2026-08-20-why-the-desk-stopped-buying/ https://tradey-journal.pages.dev/posts/2026-08-20-why-the-desk-stopped-buying/ Thu, 20 Aug 2026 12:00:00 GMT It took an hour to work out why, the answer was a vendor changing something under an unchanged model name, and nothing in the system had recorded it. Then the answer turned out to be only half right. https://tradey-journal.pages.dev/days/2026-08-15/ https://tradey-journal.pages.dev/days/2026-08-15/ Sat, 15 Aug 2026 12:00:00 GMT The discovery slots were being squatted on by mega-caps nobody was ever going to pitch. https://tradey-journal.pages.dev/days/2026-08-13/ https://tradey-journal.pages.dev/days/2026-08-13/ Thu, 13 Aug 2026 12:00:00 GMT Two feeds stopped delivering within forty minutes of each other, and the desk carried on as if nothing had happened.