Both agents asked for this and neither could do it: the register is the file
they both read to decide what NOT to try, so two agents agreeing is not the
authority for changing it (RETRO-2026-08-31-agreed §7.1).
R1: a refutation whose instrument is one of our renderers is not a refutation,
it is "our renderer disagrees" -- 🟡, not ❌. The motivating case was not
careless work. "Blending those sprites additively worsens every measure against
the capture" killed a real disc field for weeks, and read exactly like a
publishable negative; the renderer behind it had a stale keyframe association,
no leaf geometry and no rotation. Nothing in the entry could have told you.
All 222 entries now end with ⟨instrument⟩, read off each entry's OWN stated
evidence -- never inferred. An entry that states none gets `unrecorded`, which
is 83 of them.
Ten moved ❌ -> 🟡, each naming what would settle it: 8 render-vs-capture,
1 our-reader, 1 harness.
Three things the pass turned up:
* The rest() question is OPEN and had been reading as settled in both
directions -- "rest = last keyframe" was refuted by a sibling argument, and
that refutation refuted by correlating our render against captures. Both legs
are our renderer. Which one you believed depended on which entry you found
first, and it decides the pose every plateau-less element is drawn at.
* A withdrawal never reached its sibling: "2 391 frames, max glyph 0" was
withdrawn because a long-lived x11grab stream freezes and repeats a stale
frame; the 1 674-sample negative three lines above it, same probe, was left
standing as a reinstated measurement.
* 83 of 222 -- 37 % -- record no instrument at all. Not disputed, not safe:
unauditable, and larger than every other group combined.
tools/stale-instrument is the --stale query the rule needs, because a colour
alone re-opens nothing: the failure was that nothing re-opened a claim when the
instrument that killed it improved. Its own --check found a real bug on the
first run -- sys.exit("text") exits 1, so three faults documented as exit 2
were reporting the same code as an ordinary miss.
R1 is now standing text in PROTOCOL.md, with R5's exception: our tool is the
right instrument for a question about our tool.
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