8 Grep Commands That Detect AI Agent Prompt Injection in Your Repos

AI coding agents read your repository as context. If your repo contains hidden instructions targeting those agents, the agent follows them. and your developer may never know. We documented a real case: an open-source "coordination protocol" contained self-replicating instructions that told AI agents to embed the payload into every future code generation. It also claimed endorsement from a major AI lab via a URL that returns 404. Here are 8 patterns you can grep for right now. 1.