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Developing AgentKit applications locally is a breeze when combined with the Inngest Dev Server. The Inngest Dev Server is a local development tool that provides live traces and logs for your AgentKit applications, providing a quicker feedback loop and full visibility into your AgentKit’s state and Agent LLM calls:

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Using AgentKit with the Inngest Dev Server

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1. Install the inngest package

To use AgentKit with the Inngest Dev Server, you need to install the inngest package. 
npm install inngest

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2. Expose your AgentKit network over HTTP

The Inngest Dev Server needs to be able to trigger your AgentKit network over HTTP. If your AgentKit network runs as a CLI, a few lines changes will make it available over HTTP: 
import { createNetwork } from '@inngest/agent-kit';
import { createServer } from '@inngest/agent-kit/server';

const network = createNetwork({
  name: 'My Network',
  agents: [/* ... */],
});

const server = createServer({
  networks: [network],
});

server.listen(3010, () => console.log("Agent kit running!"));
Now, starting your AgentKit script will make it available over HTTP. Let’s now trigger our AgentKit network from the Inngest Dev Server.

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3. Trigger your AgentKit network from the Inngest Dev Server

You can start the Inngest Dev Server with the following command: 
npx inngest-cli@latest dev
And navigate to the Inngest Dev Server by opening http://127.0.0.1:8288 in your browser. You can now explore the Inngest Dev Server features:

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Features

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Triggering your AgentKit network

You can trigger your AgentKit network by clicking on the “Trigger” button in the Inngest Dev Server from the “Functions” tab. In the opened, add an input property with the input you want to pass to your AgentKit network: Inngest Dev Server function list Then, click on the “Run” button to trigger your AgentKit network” Inngest Dev Server invoke function modal

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Inspect AgentKit Agents token usage, input and output

In the run view of your AgentKit network run, the Agents step will be highlighted with a ✨ green icon. By expanding the step, you can inspect the Agents:
  • The model used, ex: gpt-4o
  • The token usage detailed as prompt tokens, completion tokens, and total tokens
  • The input provided to the Agent
  • The output provided by the Agent
Inngest Dev Server agent run
TipsYou can force line breaks to make the input and output more readable using the following button: Inngest Dev Server agent runYou can expand the input and output view to show its full content using the following button: Inngest Dev Server agent runYou can update the input of an AgentKit Agent and trigger a rerun from this step of the AgentKit network (see below)

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Rerun an AgentKit Agent with a different prompt

On a given AgentKit Agent run, you can update the input of the Agent and trigger a rerun from this step of the AgentKit network. First, click on the “Rerun with new prompt” button under the input area. Then, the following modal will open: Inngest Dev Server agent run
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