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

Source: Google Developers Blog

Overview

Genkit is an open‑source framework designed to help developers build production‑ready, agentic AI applications.

Supported Languages

• TypeScript
• Go
• Dart
• Python

Middleware System

The framework utilizes a powerful middleware system that intercepts generation calls to inject custom behaviors such as:

• Retries
• Model fallbacks
• Human‑in‑the‑loop tool approvals

Hook Layers

Developers can attach hooks at the generate, model, and tool layers, ensuring high reliability and deterministic control over model outputs.

Custom Middleware

Genkit allows for the creation and stacking of custom middleware, giving developers flexibility to extend functionality as needed.

Developer UI

All middleware can be inspected and debugged through a dedicated Developer UI.