Announcing Genkit Middleware: Intercept, extend, and harden your agentic apps

Genkit introduces a middleware system for intercepting and customizing AI generation calls in agentic applications.

• •Middleware hooks attach at three layers (Generate, Model, Tool) to inject custom behaviors into the tool execution loop
• •Pre-built middleware includes Retry, Fallback, Tool approval, Skills injection, and Filesystem access with safety constraints
• •Custom middleware can enforce business logic like content filtering, enabling deterministic control over model responses
• •Multiple middleware can be stacked and composed, with execution order clearly defined
• •Developer UI provides visibility into middleware configuration, execution tracing, and testing capabilities

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