{
  "id": 5148,
  "url": "https://arxiv.org/abs/2604.28138v1",
  "title": "Crab: A Semantics-Aware Checkpoint/Restore Runtime for Agent Sandboxes",
  "summary": "Autonomous agents act through sandboxed containers and microVMs whose state spans filesystems, processes, and runtime artifacts. Checkpoint and restore (C/R) of this state is needed for fault tolerance, spot execution, RL rollout branching, and safe rollback-yet existing approaches fall into two extremes: application-level recovery preserves chat history but misses OS-side effects, while full per-turn checkpointing is correct but too expensive under dense co-location. The root cause is an agent-",
  "authors": "Tianyuan Wu, Chaokun Chang, Lunxi Cao, Wei Gao, Wei Wang",
  "category": "research",
  "topics": "agents-autonomy",
  "orgs": null,
  "regions": null,
  "published_at": "2026-04-30T17:20:19.000Z",
  "fetched_at": "2026-07-14T16:31:31.213Z",
  "source_slug": "arxiv-ethics",
  "source_name": "arXiv",
  "source_homepage": "https://arxiv.org",
  "ethics_ai_record_url": "https://ethics.ai/record/5148",
  "original_url": "https://arxiv.org/abs/2604.28138v1",
  "evidence_status": "source-only",
  "attribution": "via ethics.ai"
}