{
  "schemaVersion": 1,
  "artifactType": "original-task-practice-definition",
  "taskId": "accordion-paper-crease-collapse",
  "family": "B",
  "evidenceClass": "method-not-independently-tested",
  "createdAt": "2026-10-21T18:04:34.540Z",
  "modelId": "MiniMax-H3",
  "mode": "image-to-video",
  "title": {
    "en": "MiniMax H3 accordion-paper prompt: close the existing creases in order",
    "zh": "MiniMax H3 手风琴纸折提示词：沿既有折痕依序收拢"
  },
  "task": {
    "en": "Preserve the adjacency of a pre-folded strip while its panels rotate at the existing creases. The task is not to invent more folds or to crumple an otherwise flat sheet.",
    "zh": "让预折纸条的面片沿原有折线转动，同时保留相邻次序。不是要求平纸凭空生出更多褶皱，也不是把纸揉成一团。"
  },
  "input": {
    "file": "first-frame.png",
    "designSource": "first-frame.svg",
    "role": "first-frame",
    "kind": "synthetic-original-geometric-practice-input",
    "width": 1024,
    "height": 1024,
    "modelOutput": false
  },
  "interface": {
    "variant": "base",
    "addEndFrameEnabled": true,
    "firstFrame": "first-frame.png",
    "lastFrame": null,
    "fastCompatible": false,
    "automaticSubmission": false
  },
  "constraints": {
    "en": "Track the fixed left edge, the three original internal crease lines and the right edge. Each panel must remain connected to the same neighbors. Count panels rather than every highlight or outline stroke as a separate fold.",
    "zh": "跟踪固定左缘、三条内部折线和右缘。每个面片仍应连接原来的邻面，不把高光或外轮廓线误数为新的折痕。"
  },
  "acceptance": {
    "en": [
      "The clamps and held left edge stay fixed relative to the shot.",
      "One strip retains exactly four connected panel regions and three original internal creases.",
      "Shortening is explained by changed panel angles, without stretching, new pleats or detached pieces.",
      "The ending remains a compact readable zigzag, with the same alternating panel order."
    ],
    "zh": [
      "夹子和左侧固定外缘相对镜头不动。",
      "一张纸条持续保留四个相连面片与三条原内部折线。",
      "缩短由面片转角解释，没有拉伸、新褶或断开的碎片。",
      "结尾仍是可读的紧凑之字形，面片交替次序不变。"
    ]
  },
  "ending": {
    "en": "One shorter four-panel accordion remains attached to its fixed left edge, with the original crease order still readable.",
    "zh": "一条较短的四面折纸仍接在固定左缘，原来的折线次序可读。"
  },
  "limits": {
    "en": "This is a qualitative visual exercise without a model run. It does not measure paper stiffness, fold angles, clamp loads or a manufacturing process.",
    "zh": "本题是没有模型运行的定性视觉练习，不量测纸张硬度、折角、夹具载荷或制造工艺。"
  },
  "distinctTaskBoundary": {
    "en": "The knit task unfolds one soft corner, the page task moves one spine-attached leaf and the cloth task drapes a continuous surface. Here three pre-existing discrete crease hinges preserve the order of four panels during shortening.",
    "zh": "针织题打开柔软一角，翻页题转动一本书的一张连接页，垂布题形成连续曲面；这里由三条离散折线保持四面相邻关系并缩短整体。"
  },
  "nearestExistingTemplatePaths": [
    "/templates/knit-unfold-texture-and-hands",
    "/templates/page-turn-with-post-composited-text",
    "/templates/cloth-drape-over-fixed-block"
  ],
  "demandClass": "dated-broad-parent-intent-and-product-operation-findability; exact-task-demand-unmeasured",
  "execution": {
    "modelRun": false,
    "outputAsset": null,
    "providerSuccessClaim": false
  }
}