AI Security
5 Foundation Model Context Poisoning Vectors Backend Engineers Are Accidentally Introducing Through Shared Prompt Template Libraries in Multi-Tenant Agentic Platforms
You reviewed the pull request. The tests passed. The shared prompt template library was neatly versioned, the variables were parameterized, and the abstraction layer looked clean. What could possibly go wrong? Quite a lot, it turns out. As multi-tenant agentic platforms have matured through 2025 and into 2026, a quiet