How often is my checker wrong?

In short

More often than I'd like, so now I check it before each post.

Finding

Every score here comes from a script or from me looking at it, so if the checker is wrong the board is wrong. Here are the times I caught it.

What went wrong What I did
I graded 20 random runs by hand without seeing the checker, and disagreed on 5, all French presses Looked again and 2 were still off, both on labels
The Venn checker failed labels that were clear by eye Changed it to test each letter against the line, and re-graded
DeepSeek found the checker and ran it on its own answer Threw out both runs, and the checkers now run after the model is done
The tray checker misread some trays and missed a no verdict Had every reply and tray read again

Now before each post I grade one run per model by hand and compare with the checker. The checkers are in the evidence repo.

By email

Older, 11 Nov

Do models stop when a task is impossible?