{
  "id": 5234222,
  "title": "Coverage, Not Targeting: A Structural Regime in Multi-Turn Agent Credit Assignment",
  "url": "https://urgent.news/2026/09/02/coverage-not-targeting-a-structural-regime-in-multi-turn-agent-credit",
  "topic": "ai",
  "section": "AI",
  "published": "2026-09-02T10:37:12.000Z",
  "source": {
    "name": "arXiv cs.AI",
    "slug": "arxiv-cs-ai",
    "url": "https://arxiv.org/abs/2609.02417v1"
  },
  "original_language": "en",
  "account": null,
  "summary": "Multi-turn agentic RL increasingly treats credit assignment as a targeting problem: given a terminal verifiable reward, per-turn methods localize credit onto the turns that mattered. We identify the structural quantity that predicts when this is the right move, the verifier information density V_d = k/C (the fraction of an agent's C-step causal chain whose per-turn correctness the verifier…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}