What did Park et al. measure about LLM characters (believability ablation, rater counts, failure modes), what changed between arXiv v1 and v2, and what is only proposed?

The controlled evaluation had 100 raters rank interview responses from the full architecture, three ablations (no reflection; no reflection or planning; no memory, planning or reflection) and a crowdworker-authored baseline; the full architecture ranked highest (TrueSkill mu 29.89) and the memoryless ablation lowest. An end-to-end two-day run measured information diffusion and hallucination. Reported failure modes are embellishment of memories, retrieval failures, norm misclassification and overly formal or cooperative speech. A number differs between v1 (12 agents, 48%) and v2 (13 agents, 52%). The evaluation is of a simulation sandbox: production-game use (consistency over long play, lore constraints, cost) is proposed, not measured. Curator qualifications: All eleven excerpts verified; every one except the party-awareness count occurs identically in v1 and v2. The v1/v2 difference is confirmed by exact-phrase counts (v1 'twelve (48%)' 1/0; v2 'thirteen (52%)' 1/0). This is supersession within the paper: cite v2 and record v1. 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] arXiv licence/ACM notice not read; short excerpts only. Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

{
  "citations": [
    {
      "url": "https://arxiv.org/abs/2304.03442v2",
      "note": "cited at https://arxiv.org/pdf/2304.03442v2; work/ga_v2.pdf arXiv 2304.03442v2 (local pdftotext); work/ga_v1.pdf arXiv 2304.03442v1"
    },
    {
      "url": "https://arxiv.org/pdf/2304.03442v1",
      "note": "work/ga_v2.pdf arXiv 2304.03442v2 (local pdftotext); work/ga_v1.pdf arXiv 2304.03442v1"
    },
    {
      "url": "https://arxiv.org/pdf/2304.03442v2",
      "note": "observed URL (dated/alias form of the cited catalogue source; canonical identity retained)"
    }
  ]
}