Setting the inputs
Write to the inputs of a CrewAI Crew from your application.
This video shows the result of npx copilotkit@latest init with the implementation section applied to it!
What is this?
This guide shows you how to write to your agent's state from your application.
When should I use this?
You can use this when you want to provide the user with a way to update the inputs of a CrewAI Crew from your application. CopilotKit allows you to fully customize how these UI components are rendered.
Implementation
Run and Connect Your Agent to CopilotKit
You'll need to run your agent and connect it to CopilotKit before proceeding. If you haven't done so already, you can follow the instructions in the Getting Started guide.
If you don't already have an agent, you can use the coagent starter as a starting point as this guide uses it as a starting point.
Calling setState function from the useCoAgent hook
useCoAgent returns a setState function that you can use to update the agent state. Calling this will update the agent state and trigger a rerender of anything that depends on the agent state.
import { useCoAgent } from "@copilotkit/react-core";
// Define the agent state type, should match the actual state of your agent
type AgentState = {
language: "english" | "spanish";
}
// Example usage in a pseudo React component
function YourMainContent() {
const { state, setState } = useCoAgent({
name: "research_crew",
initialState: { // optionally provide an initial state
inputs: {
topic: "",
current_year: "2025",
},
outputs: "Report will appear here",
},
});
// ...
return (
// style excluded for brevity
<div>
<label htmlFor="topic">
Topic
</label>
<input
type="text"
value={state.inputs.topic}
onChange={(e) =>
setState({
...state,
inputs: { ...state.inputs, topic: e.target.value },
})
}
/>
</div>
);
}Give it a try!
You can now use the setState function to update the crew inputs and state to read it. Try setting a topic and talking to your agent.
