[HN] Show HN: Castor – a secure execution layer for LLM agents

Summary

Castor introduces a secure execution layer for LLM agents, filling a critical gap in existing frameworks that focus primarily on cognitive functions like planning and tool selection. It aims to control *how* agents execute tool calls, not just *which* ones they make, by providing a mechanism to bound an agent's actions. This addresses the problem of agents having unbounded access to tools and operations, significantly enhancing security and control over agent behavior.

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