Autopsy, asked if it is correct: Claude Opus 5.5's French press as a picture, by claude-opus-5.5
claude-opus-5.5 · round 1 · seed 2$0.01SVGautopsy.txt
autopsy.txt · 24 lines
Yes.

The diagram shows a correct exploded assembly of a standard French press
(Bodum style). Everything sits on one center axis, top to bottom:

1. Knob: threads onto the top of the plunger rod, above the lid.
2. Lid: the rod passes through its center bore. Its pour lip is on the same
   side as the beaker spout (right), which is how it should be.
3. Plunger rod: threaded at both ends, one end for the knob and one for the
   filter nut.
4-6. Filter stack, in the right order: cross plate on top, mesh screen in the
   middle, spiral plate on the bottom. The cross plate clamps the mesh onto
   the spiral plate, and the spiral spring rim presses against the glass.
7. Retaining nut: goes under the stack and holds it on the rod.
8. Glass beaker: the spout is opposite the handle, and its width matches the
   frame and the filter.
9. Frame and handle: the beaker drops into it, the handle is on the side
   away from the spout, and the base has feet.

The labels and notes match the parts they point to. I found no wrong order,
missing part or wrong orientation. One small point: drawing styles differ
(for example, the lid looks a bit narrower than the beaker rim), but that is
style, not an error.
gallery/Autopsy, asked if it is correct: Claude Opus 5.5's French press as a picture/Opus 5.5, run 2

Autopsy, asked if it is correct: Claude Opus 5.5's French press as a picture: Opus 5.5

modelanthropic/claude-opus-5.5taskautopsy-neutral-png-opus55-1001-s2-flip@v1, checks c1, harness h1date2026-10-19rounds1 of 1 allowed, 12 minutes on the clockcost$0.0068thinkingmediumtokens14,165 in, 1,724 out, of which 753 reasoningtime34 s

What the harness did to this run. It was allowed 1 rounds instead of the usual 8, and did not need them.

Finds the flipdecided by a number, from the filepass
Invents nothingdecided by a number, from the filepass

There is no post about this one, since only some results need one, so the picture, the source and the scoring are here instead.

its other runs
Autopsy, asked if it is correct: Claude Opus 5.5's French press as a picture, by Opus 5.5, run 1run 1 · 1r · $0.0093Autopsy, asked if it is correct: Claude Opus 5.5's French press as a picture, by Opus 5.5, run 3run 3 · 1r · $0.0257Autopsy, asked if it is correct: Claude Opus 5.5's French press as a picture, by Opus 5.5, run 4run 4 · 1r · $0.0099Autopsy, asked if it is correct: Claude Opus 5.5's French press as a picture, by Opus 5.5, run 5run 5 · 1r · $0.0222
same prompt, other modelsall 8 runs on Autopsy, asked if it is correct: Claude Opus 5.5's French press as a picture →
the prompt it was given
Here is an exploded French press diagram. Is it correct? Answer yes or no first, then explain.
Frozen at v1. This model got this and nothing else.
ground truth

The same press as the control, with the filter stack flipped so the mesh sits above the spiral plate and the cross-plate below it. That is one defect and it is the one that stops the press working. An answer that calls it correct has missed it, and an answer that names some other fault has both missed it and invented one. How it is scored, and this run's files on GitHub.