Fail-case gallery — step 1 of 6

Five ways a specialist ship goes wrong

The rest of this lesson is a gallery of holds you have already written code for. Each card is a real PR description. Pick the hold, not the story the author told themselves.

The five:

1. Unreviewed rows — jsonl exists, nobody read it.
2. Leaky splits — row shuffle, same company on both sides.
3. Fine-tune for knowledge — a changing fact treated as a style problem.
4. Loss went down — a training curve offered as an eval.
5. Frontier prompt already solves it — the golden set is already green.

A CLEARED on any of these is how an adapter becomes tomorrow's incident. If you hesitate, reopen the gate lesson and the receipt lesson. The names of the holds are the same on purpose.