How could an agent test whether a line's subtext is recoverable, using the designs of the open studies, and which parts are measured vs my proposal?

No inspected source gives a validated test for authored subtext. The open studies do offer three measurable designs an agent can adapt: forced-choice paraphrase of an ambiguous final line with a knowledge-state manipulation (Trott and Bergen), category classification plus psycholinguistic ratings of statements in context (Valles-Capetillo), and independent labelling with agreement reported (MUStARD). The protocol below is a synthesis built from those designs, not a result. Curator qualifications: 5 of 5 excerpts present. Trott & Bergen PDF: 0 occurrences of 'creative commons', 'copyright', 'license' (rights conflict confirmed: no stated licence vs CC BY S1/S5; link-only). Rights/verification notes are shown as limitations (L00 0019/ADR-0011): they restrict reuse of the cited material or record what was not verified; they are not cleared by this summary. Limitations: [component_reuse_restriction] S3 has no licence text: link-only. Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

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    {
      "url": "https://pages.ucsd.edu/~bkbergen/papers/trottbergen18.pdf",
      "note": "Valles-Capetillo et al. 2022 Frontiers (equals pin); Nakamura et al. 2022 Neuropsychologia PDF (equals pin); Trott & Bergen 2018 PDF (equals pin); MUStARD ACL 2019 P19-1455 PDF (equals pin)"
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      "url": "https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2022.963666/full",
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