OpenRouter launches Armor: LLM-powered guard against out-of-policy agent tool calls

dfinke · x · 2026-10-17

OpenRouter has launched Armor. Tool calls let agents interact with the world, but regex-based filtering isn't enough to detect unwanted tool calls. Armor uses typesafe ai's Jev model to guard against out-of-policy tool calls, adding a security layer for agents in production.

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