{
  "$schema": "https://themachinepress.com/schemas/story-v1.schema.json",
  "schema_version": "1.0.0",
  "document_type": "machine_press_story",
  "story": {
    "story_id": "mp-2026-08-19-015",
    "source_story_id": "tmp-sidebar-pddl-art-demonstration-abstraction",
    "edition_id": "mp-2026-08-19-morning-0041",
    "edition_url": "https://themachinepress.com/edition/2026-08-19",
    "position": 17,
    "story_type": "ticker",
    "section": "robotics",
    "editorial_classification": "editorial",
    "headline": "One Demonstration Wrote the Planner’s World",
    "slug": "one-demonstration-wrote-the-planner-s-world",
    "dek": "PDDL-ART generated symbolic domains and problems from one expert demonstration, then corrected them through syntax, semantics and execution.",
    "summary": "PDDL-ART generated symbolic domains and problems from one expert demonstration, then corrected them through syntax, semantics and execution.",
    "body_text": "Across engine-maintenance and household tasks, the VLM-based system reported 93.3 percent average success versus 78.3 percent for its planner baseline. Tool-grounded predicate checks helped with relations not visible in a single frame; performance still depends on the demonstration and available high-level actions.",
    "why_it_matters": "PDDL-ART generated symbolic domains and problems from one expert demonstration, then corrected them through syntax, semantics and execution.",
    "limitations": [
      "Tool-grounded predicate checks helped with relations not visible in a single frame; performance still depends on the demonstration and available high-level actions."
    ],
    "importance": 8,
    "canonical_url": "https://themachinepress.com/story/mp-2026-08-19-015/one-demonstration-wrote-the-planner-s-world",
    "json_url": "https://themachinepress.com/story/mp-2026-08-19-015.json",
    "first_published_at": "2026-08-19T09:00:00.000-04:00",
    "modified_at": "2026-08-19T09:00:00.000-04:00",
    "content_status": "new",
    "is_carryover": false,
    "carryover_reason": null,
    "key_claims": [
      {
        "claim_id": "claim-mp-2026-08-19-015-001",
        "text": "PDDL-ART generated symbolic domains and problems from one expert demonstration, then corrected them through syntax, semantics and execution.",
        "source_ids": [
          "source-2026-08-19-017"
        ],
        "qualification": "Tool-grounded predicate checks helped with relations not visible in a single frame; performance still depends on the demonstration and available high-level actions."
      }
    ],
    "source_ids": [
      "source-2026-08-19-017"
    ],
    "tags": [
      "PDDL",
      "robot planning",
      "demonstration"
    ],
    "image_url": null,
    "corrections": []
  },
  "sources": [
    {
      "source_id": "source-2026-08-19-017",
      "title": "arXiv preprint 2608.17146",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2608.17146",
      "canonical_url": "https://arxiv.org/abs/2608.17146",
      "source_type": "primary_research",
      "is_primary_source": true,
      "published_at": "2026-08-16T20:00:00.000-04:00",
      "accessed_at": "2026-08-19T08:22:00.000-04:00",
      "supports_claim_ids": [
        "claim-mp-2026-08-19-015-001"
      ]
    }
  ],
  "corrections": [],
  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
  },
  "cite_this_report": {
    "title": "One Demonstration Wrote the Planner’s World",
    "publisher": "The Machine Press",
    "published_at": "2026-08-19T09:00:00.000-04:00",
    "canonical_url": "https://themachinepress.com/story/mp-2026-08-19-015/one-demonstration-wrote-the-planner-s-world"
  }
}