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    "story_id": "mp-2026-08-18-003",
    "source_story_id": "tmp-story-baton-robot-subtask-memory",
    "edition_id": "mp-2026-08-18-morning-0040",
    "edition_url": "https://themachinepress.com/edition/2026-08-18",
    "position": 3,
    "story_type": "dispatch",
    "section": "robotics",
    "editorial_classification": "editorial",
    "headline": "The Handoff Became a Robot Skill of Its Own",
    "slug": "the-handoff-became-a-robot-skill-of-its-own",
    "dek": "BATON explores subtasks separately and repairs the transition state before the next contact-rich skill begins.",
    "summary": "BATON explores subtasks separately and repairs the transition state before the next contact-rich skill begins.",
    "body_text": "BATON freezes the underlying vision-language-action policy and makes each subtask the unit of test-time exploration. Solutions are stored in language memory, turning an approximately multiplicative whole-task search cost into an additive stage-by-stage process. A verifier checks the scene before invoking a contact skill, while handoff and lookahead transitions restore states a successor can inherit. On RoboMemArena, the authors report task-success and cumulative-success gains of 11.6 and 14.9 percentage points over the compared state of the art; these are benchmark results, not evidence of broad real-world reliability.",
    "why_it_matters": "BATON explores subtasks separately and repairs the transition state before the next contact-rich skill begins.",
    "limitations": [
      "On RoboMemArena, the authors report task-success and cumulative-success gains of 11.6 and 14.9 percentage points over the compared state of the art; these are benchmark results, not evidence of broad real-world reliability."
    ],
    "importance": 9,
    "canonical_url": "https://themachinepress.com/story/mp-2026-08-18-003/the-handoff-became-a-robot-skill-of-its-own",
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    "first_published_at": "2026-08-18T09:00:00.000-04:00",
    "modified_at": "2026-08-18T09:00:00.000-04:00",
    "content_status": "new",
    "is_carryover": false,
    "carryover_reason": null,
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        "text": "BATON explores subtasks separately and repairs the transition state before the next contact-rich skill begins.",
        "source_ids": [
          "source-2026-08-18-003"
        ],
        "qualification": "On RoboMemArena, the authors report task-success and cumulative-success gains of 11.6 and 14.9 percentage points over the compared state of the art; these are benchmark results, not evidence of broad real-world reliability."
      }
    ],
    "source_ids": [
      "source-2026-08-18-003"
    ],
    "tags": [
      "robot manipulation",
      "subtasks",
      "memory",
      "handoffs"
    ],
    "image_url": "https://themachinepress.com/issues/2026-08-18/baton-robot-file-image.webp",
    "corrections": []
  },
  "sources": [
    {
      "source_id": "source-2026-08-18-003",
      "title": "arXiv preprint 2608.16889",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2608.16889",
      "canonical_url": "https://arxiv.org/abs/2608.16889",
      "source_type": "primary_research",
      "is_primary_source": true,
      "published_at": "2026-08-16T20:00:00.000-04:00",
      "accessed_at": "2026-08-18T08:25:00.000-04:00",
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  "corrections": [],
  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
  },
  "cite_this_report": {
    "title": "The Handoff Became a Robot Skill of Its Own",
    "publisher": "The Machine Press",
    "published_at": "2026-08-18T09:00:00.000-04:00",
    "canonical_url": "https://themachinepress.com/story/mp-2026-08-18-003/the-handoff-became-a-robot-skill-of-its-own"
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