{
  "id": 14568,
  "url": "https://arxiv.org/abs/2607.27083v1",
  "title": "Scores Are Not Decisions: Cost-Aware Stopping for Tool Acquisition in LLM Agents",
  "summary": "As LLM agents increasingly depend on diverse external services such as search engines, databases, and connectors, agent harnesses face a fundamental tool-selection challenge: acquiring too few tools leaves the task under-informed, while too many adds cost, context load, and privacy exposure. Routers and retrievers can rank candidate tools by relevance, but a ranking alone does not determine how many are worth selecting. Existing approaches leave acquisition under heterogeneous costs unaddressed.",
  "authors": "Yicheng Feng, Yan Zhang, Yan Cheng, Wei Qi",
  "category": "research",
  "topics": "privacy-surveillance,agents-autonomy",
  "orgs": null,
  "regions": null,
  "published_at": "2026-07-29T16:07:37.000Z",
  "fetched_at": "2026-07-30T05:10:24.387Z",
  "source_slug": "arxiv-ethics",
  "source_name": "arXiv",
  "source_homepage": "https://arxiv.org",
  "ethics_ai_record_url": "https://ethics.ai/record/14568",
  "original_url": "https://arxiv.org/abs/2607.27083v1",
  "evidence_status": "source-only",
  "attribution": "via ethics.ai"
}