Prismor is a free, open-source security layer for AI coding agents that checks each tool call against policy before it runs, helping stop risky actions like credential leaks, poisoned file redirections, and compromised package installs. PrismorSec says it logs by default, can block in real time, and includes package checks plus a semantic guard that improves prompt-injection detection. #Prismor #PrismorSec #ClaudeCode #Codex #Cursor #mini-shai-hulud #AntV
Keypoints
- Prismor sits between AI coding agents and their tool calls.
- It returns allow, warn, or block for every action.
- It logs first in observe mode and enforces later by user choice.
- Package checks score installs using age, maintainers, scripts, and IOC matches.
- A semantic guard improves detection of prompt injections that evade pattern matching.
Read More: https://www.helpnetsecurity.com/2026/09/23/prismor-open-source-ai-agent-security/