{
  "blueprintId": "blueprint-10",
  "kind": "template",
  "evidenceClass": "method-not-independently-tested",
  "contentVersion": "pilot-86ec4553e6fa6cf216942b4c",
  "title": "Hinged box opening: move the lid, hold the base in place",
  "description": "A first-frame practice for opening a hinged lid. Define the fixed base, the hinge line and the final open state; diagnose sliding bases, detached lids and invented interiors.",
  "goal": "Describe a single lid-opening action with a stationary base. The illustrated start and optional end-state drawing are a planning pair, not evidence of a tested animation or a claim of mechanical simulation.",
  "preparation": [
    "Use a first frame showing the base, lid and visible hinge side. The supplied original illustration is a practice input; use your own permitted product image for a real deliverable.",
    "Keep the box base in contact with a clear surface. Avoid cutting off the base corners, since they are your fixed-position checkpoints.",
    "Decide what the inside should contain before generating. If a real product interior must be exact, supply it through a supported workflow or capture it directly; a closed box does not reveal its hidden interior.",
    "Use the separate end-state SVG as a visual brief for the desired pose. This package sends only the starting image to image-to-video; do not assume the selected mode accepts a second end-frame input."
  ],
  "prompt": "Start from the uploaded image. Keep the box base fixed on the tabletop and keep the camera stationary. Only the lid opens slowly, turning upward around the back hinge line as one connected rigid piece. The base keeps its original size, orientation and contact with the table. The visible interior stays simple and empty. The lid reaches a clearly open position and pauses there without detaching or continuing to turn. No new contents, no camera movement, no added writing.",
  "steps": [
    {
      "title": "Separate the three roles",
      "body": "Name the base as fixed, the lid as moving and the rear hinge line as the pivot. Describe one action, not an explosion of parts. Check that the input makes these relationships visible enough to judge."
    },
    {
      "title": "Write the action and the stopping state",
      "body": "Request a slow opening and a pause in a clearly open position. Keep the camera stationary for the first attempt. The separate end-state illustration helps you agree on the pose; it does not establish an exact rotation angle or a guaranteed final frame."
    },
    {
      "title": "Check the newly revealed area",
      "body": "Pause while the lid crosses the rim. Look for a moving hinge, a disappearing side wall or objects appearing inside. Compare what is visible in the output with what your input actually supplies, especially when using a photo of a closed package."
    },
    {
      "title": "Correct the part that failed",
      "body": "If the base slides, revise its fixed-contact instruction while keeping the same action. If the hinge detaches, simplify the opening request. If the interior must reproduce a product exactly, switch to an input plan that contains that interior or use real footage instead of inventing details."
    }
  ],
  "acceptance": [
    "The visible base edges stay in the same positions relative to the tabletop.",
    "The lid moves as one part rather than folding, splitting or stretching.",
    "The hinge remains connected to the same rear edge of the base.",
    "The lid does not pass through the rim or erase a side wall during opening.",
    "No unexpected product or decoration appears inside the box.",
    "The action ends in an open pause instead of reopening, closing or rotating continuously.",
    "The result is judged as a visual opening sequence; it is not used as evidence of engineering tolerances or mechanically accurate motion."
  ],
  "troubleshooting": [
    {
      "symptom": "The whole box lifts or slides",
      "change": "Make the base-to-table contact the fixed role and remove words suggesting a reveal, lift or floating product. Retry the opening alone before adding camera motion."
    },
    {
      "symptom": "The lid becomes detached halfway through",
      "change": "Describe one connected lid turning around the rear hinge line. Reduce the motion request and compare the same transition; more detailed hinge terminology may add objects instead of fixing the connection."
    },
    {
      "symptom": "Unexpected items appear inside",
      "change": "State that the visible interior is simple and empty. For an exact real interior, change the source plan rather than repeatedly asking the model to guess what a closed box contains."
    },
    {
      "symptom": "The lid closes immediately after opening",
      "change": "Put the open pause explicitly at the end of the action. Remove requests for a seamless loop if the required deliverable is an opening shot."
    }
  ],
  "ending": "Finish with the base still on the table and the lid visibly open. Keep the start image and the open-state drawing together as a briefing pair; record whether the final clip passed the hinge and interior checks.",
  "assetCaption": "Original editable vector illustration of a hinged box in its starting pose. The optional open-state illustration is a planning reference, not a generated end frame or tested result."
}