LACUNA: Safe Agents as Recursive Program Holes

📰 ArXiv cs.AI

Learn how LACUNA enables safe agents as recursive program holes, enhancing expressiveness while addressing safety concerns

advanced Published 28 May 2026
Action Steps
  1. Implement LACUNA to create recursive program holes in LLM agents
  2. Use LACUNA to enable model-written code to shape the runtime environment
  3. Test and evaluate the safety and expressiveness of LLM agents using LACUNA
  4. Apply LACUNA to real-world scenarios to demonstrate its effectiveness
  5. Compare the performance of LACUNA with other safety mechanisms for LLM agents
Who Needs to Know This

AI researchers and engineers working on LLM agents and recursive program holes can benefit from this knowledge to improve agent safety and expressiveness

Key Insight

💡 LACUNA enables model-written code to shape the runtime environment, enhancing expressiveness while addressing safety concerns

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🚀 Introducing LACUNA: Safe Agents as Recursive Program Holes! Enhance expressiveness and safety in LLM agents 🤖

Key Takeaways

Learn how LACUNA enables safe agents as recursive program holes, enhancing expressiveness while addressing safety concerns

Full Article

Title: LACUNA: Safe Agents as Recursive Program Holes

Abstract:
arXiv:2605.28617v1 Announce Type: new Abstract: LLM agents increasingly act by writing code, yet a split persists between the runtime that drives the agent and the code the model writes. The runtime owns the loop, context, and control flow, and the model has little say over any of them. Letting model-written code shape the runtime itself would make agents more expressive, but it would also sharpen safety problems. A model can be diverted by a prompt injection, call the wrong tool, or fail partwa
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