Build agentic full-stack apps with Genkit

Summary

Genkit Agents is an open-source, full-stack foundation for conversational AI and agentic applications, supporting TypeScript, Go, Dart, and Python. The Agents API packages message history, tool loops, streaming, persistence, and frontend communication behind a shared interface: agents can run in process or behind HTTP, and clients use chat() through remoteAgent(). Developers can choose client-managed state or session-store-backed snapshots, resume by session ID, branch from snapshot ID, stream text, custom state, and artifacts, and pause tools for human approval. The framework also supports detached long-running work, specialist delegation, persistence choices including in-memory, file, Firestore, and custom stores, plus an Agent Runner in the Developer UI. The Agents API is in preview for TypeScript and Go, with breaking changes possible in minor releases.

Takeaways

1. 1

   Server-managed agents persist messages, custom state, and artifacts as snapshots; clients can resume with a session ID or branch from a specific snapshot ID.

2. 2

   The same chat() interface works with local and remote agents, while sendStream() exposes text, custom state, and artifact updates as they are produced.

3. 3

   Genkit offers in-memory, file, Firestore, and custom session stores, while ADK is recommended when complex multi-agent orchestration or a managed runtime is the primary need.