Prismor: Open-source Runtime Control Plane for AI Agents

Written By
JP
James Patterson
Oct 5, 2026

Prismor is a free, open-source security layer for AI coding agents. It sits between an agent such as Claude Code, Codex, or Cursor and the actions that agent wants to take, and it checks each tool call against a policy before the call runs. Every call gets one of three verdicts: allow, warn, or block.

JP

James Patterson

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