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    "story_id": "mp-2026-08-05-010",
    "source_story_id": "tmp-story-cuadebug-agent-failure-repair",
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    "headline": "The Debugger Looked at the Step Before the Click",
    "slug": "the-debugger-looked-at-the-step-before-the-click",
    "dek": "Paired screenshots and action traces improved root-cause guidance for computer-use agent retries.",
    "summary": "Paired screenshots and action traces improved root-cause guidance for computer-use agent retries.",
    "body_text": "CUADebug introduces a failure taxonomy, a human-annotated set of 204 failed OSWorld trajectories and a debugger that inspects suspicious before-and-after screenshots with action traces. Task reasoning and control accounted for 110 failures, more than perception, grounding or external-system categories. On the reported split, structured root-cause guidance roughly doubled continual re-execution success from 12.2 to 25.86 percent, still below human-oracle guidance at 29.21 percent. The evidence is benchmark-specific and leaves most failed tasks unresolved.",
    "why_it_matters": "Paired screenshots and action traces improved root-cause guidance for computer-use agent retries.",
    "limitations": [],
    "importance": 8,
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    "first_published_at": "2026-08-05T09:00:00.000-04:00",
    "modified_at": "2026-08-05T09:00:00.000-04:00",
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    "source_ids": [
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    "tags": [
      "computer-use agents",
      "debugging",
      "OSWorld",
      "recovery"
    ],
    "image_url": null,
    "corrections": []
  },
  "sources": [
    {
      "source_id": "source-2026-08-05-010",
      "title": "arXiv preprint 2608.02643",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2608.02643",
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      "accessed_at": "2026-08-05T08:26:06.151-04:00",
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  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
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  "cite_this_report": {
    "title": "The Debugger Looked at the Step Before the Click",
    "publisher": "The Machine Press",
    "published_at": "2026-08-05T09:00:00.000-04:00",
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