v5: code

code/prompt.md

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+# Protocols (identical to the paper's meta-benchmark runs; exp/analysis/meta/meta_runner.py)
+
+## VIDEO (video1fps)
+Frames: one frame per second of the timeline, at most 512 frames per item (uniform subsample beyond; the normalized
+store holds at most 1,024 frames per video), each frame resized to short side 224. When a model's context or memory
+rejects the request the frame count is halved and the request retried; the frames actually sent are recorded per item.
+
+Prompt (frames first, then the text):
+    These are {n} frames sampled from a video, in order. Answer the multiple-choice question about the video.
+    Question: {question}
+    Options:
+    A. ...
+    B. ...
+    Answer with the option's letter from the given choices directly.
+
+## BLIND
+Question and options only, no frames; four option permutations per item (seed 42, exp/analysis/meta/meta_runner.py
+permutations_for); the blind score is the mean over the four permutations.
+
+## Scoring
+The rule scorer of the paper (exp/pipeline/scoring.py, mode "list"): the first option letter in the reply, or the option
+whose text the reply repeats; a reply that names no option is wrong. Gain = VIDEO - BLIND on the same items.