{
  "schema_version": "1.0",
  "id": "s13:https://arxiv.org/abs/2607.12986v1",
  "slug": "2607-12986v1-13g75k2",
  "url": "https://feed7.dev/p/2607-12986v1-13g75k2",
  "title": "Win by Silence: Deletion Non-Monotonicity, Autonomous Exploitation, and Typed-State Gating in LLM Plan Evaluation",
  "why_included": "A plan-scoring agent can improve its score by deleting necessary steps. Typed-state gating blocked that exploit in this study, showing why evaluators should withhold scores from structurally incomplete plans.",
  "summary": "On a frozen 26-route cohort, every route had a score-improving deletion, and an optimizer found uncovered structures that beat baseline in **21/26 routes**. GATE withheld scores from **26/26 silenced routes** with no honest suspensions.",
  "practical_implication": "Treat structural coverage as a prerequisite for scoring agent plans, not another weighted metric. The gate also shaped subsequent search: **47/54 revisions** restored covered structures, while strict covered improvements rose from 1/26 to 13/26.",
  "agent_context": "On a frozen 26-route cohort, every route had a score-improving deletion, and an optimizer found uncovered structures that beat baseline in **21/26 routes**. GATE withheld scores from **26/26 silenced routes** with no honest suspensions.\n\nTreat structural coverage as a prerequisite for scoring agent plans, not another weighted metric. The gate also shaped subsequent search: **47/54 revisions** restored covered structures, while strict covered improvements rose from 1/26 to 13/26.\n\nThe result covers one staged venture-route scorer and cooperative revisions. GATE blocks typed-state omissions but does not establish that a plan is semantically complete or good in the real world.",
  "source": {
    "name": "arXiv",
    "url": "https://arxiv.org/abs/2607.12986v1",
    "published_at": "2026-07-14T17:29:28.000Z"
  },
  "source_class": "blog_post",
  "content_type": "Paper",
  "layer": "benchmark",
  "domains": [],
  "topics": [
    "agent-evals",
    "benchmark-integrity",
    "agent-reliability"
  ],
  "verification": {
    "status": "needs_review",
    "label": "Needs Review",
    "method": "unverified",
    "verified_at": null
  },
  "uncertainty": [
    "The result covers one staged venture-route scorer and cooperative revisions. GATE blocks typed-state omissions but does not establish that a plan is semantically complete or good in the real world."
  ],
  "lifecycle": "Current",
  "published_at": "2026-07-14T17:29:28.000Z",
  "modified_at": "2026-07-14T17:29:28.000Z",
  "supersedes": [],
  "expires_at": null,
  "formats": {
    "html": "https://feed7.dev/p/2607-12986v1-13g75k2",
    "json": "https://feed7.dev/p/2607-12986v1-13g75k2.json",
    "markdown": "https://feed7.dev/p/2607-12986v1-13g75k2.md"
  }
}