Headless Interrupts

function ApprovalPanel() {
  const element = useInterrupt({
    renderInChat: false,
    render: ({ interrupt, resolve, cancel }) => (
      <div className="p-3 border rounded">
        <p>{interrupt?.message ?? "Approve this action?"}</p>
        <div className="mt-2 flex gap-2">
          <button onClick={() => resolve({ approved: true })}>Approve</button>
          <button onClick={() => cancel()}>Cancel</button>
        </div>
      </div>
    ),
  });

  // `element` is null while no interrupt is active; render it wherever you like.
  return <div className="approval-panel">{element}</div>;
}

import React, { useEffect, useState } from "react";import {  CopilotKit,  CopilotChat,  useConfigureSuggestions,  useInterrupt,} from "@copilotkit/react-core/v2";import { generateFallbackSlots } from "../_shared/interrupt-fallback-slots";import type { TimeSlot } from "../_shared/interrupt-fallback-slots";type InterruptPayload = {  topic?: string;  attendee?: string;  slots?: TimeSlot[];};// Read the tool's `interrupt()` reason off an AG-UI interrupt.//// The two bridges expose it on different channels: `ag_ui_strands` (Python)// carries the reason object under `metadata.reason`, while the published// `@ag-ui/aws-strands` 0.2.3 JSON-encodes it into `message` instead. Both are// read so one page serves both, and the legacy event value is read last for// adapters that pass the payload through unwrapped./** * JSON.parse that never throws and never returns a primitive. Both readers run * inside a React render callback, where a throw takes the whole pane down. */function parseObject(raw: string | undefined): Record<string, unknown> | null {  if (!raw) return null;  try {    const parsed: unknown = JSON.parse(raw);    return parsed && typeof parsed === "object"      ? (parsed as Record<string, unknown>)      : null;  } catch {    return null;  }}function readInterruptPayload(  interrupt: { metadata?: unknown; message?: string } | null | undefined,  eventValue: unknown,): InterruptPayload {  const metadata = interrupt?.metadata as    | { reason?: InterruptPayload }    | undefined;  if (metadata?.reason && typeof metadata.reason === "object") {    return metadata.reason;  }  // The published TypeScript bridge JSON-encodes the reason into `message`  // instead of carrying it on metadata.  const decoded = parseObject(interrupt?.message);  if (decoded) {    const nested = (decoded as { reason?: InterruptPayload }).reason;    return nested && typeof nested === "object"      ? nested      : (decoded as InterruptPayload);  }  // Legacy channel: some adapters pass the payload through as the event value,  // JSON-encoded or not.  const legacy =    typeof eventValue === "string" ? parseObject(eventValue) : eventValue;  if (!legacy || typeof legacy !== "object") return {};  const wrapped = (legacy as { metadata?: { reason?: InterruptPayload } })    .metadata?.reason;  if (wrapped && typeof wrapped === "object") return wrapped;  return legacy as InterruptPayload;}export default function InterruptHeadlessDemo() {  return (    <CopilotKit runtimeUrl="/api/copilotkit" agent="interrupt-headless">      <Layout />    </CopilotKit>  );}function Layout() {  const [resolving, setResolving] = useState(false);  const interruptElement = useInterrupt({    agentId: "interrupt-headless",    renderInChat: false,    render: ({ event, interrupt, resolve }) => {      const payload = readInterruptPayload(interrupt, event.value);      const resumeAfterPaint = (response: unknown) => {        setResolving(true);        // A frame boundary lets React paint before resume unmounts the        // interrupt, but `requestAnimationFrame` never fires in a background        // tab, so a timer runs whichever comes first and the resume cannot be        // stranded. Fire-and-forget by design: a rejected resume is re-surfaced        // globally instead of disappearing.        let fired = false;        const resumeOnce = () => {          if (fired) return;          fired = true;          void resolve(response).then(            () => setResolving(false),            (error) => {              setResolving(false);              queueMicrotask(() => {                throw error;              });            },          );        };        requestAnimationFrame(resumeOnce);        window.setTimeout(resumeOnce, 100);      };      return (        <TimeSlotPopup          payload={payload}          onPick={(slot) => {            resumeAfterPaint({              chosen_time: slot.iso,              chosen_label: slot.label,            });          }}          onCancel={() => {            resumeAfterPaint({ cancelled: true });          }}        />      );    },  });  useEffect(() => {    if (interruptElement) {      setResolving(false);    }  }, [interruptElement]);  useConfigureSuggestions({    suggestions: [      {        title: "Book a call with sales",        message: "Book an intro call with the sales team to discuss pricing.",      },      {        title: "Schedule a 1:1 with Alice",        message: "Schedule a 1:1 with Alice next week to review Q2 goals.",      },    ],    available: "always",  });  return (    <div className="grid h-screen grid-cols-[1fr_420px] bg-[#FAFAFC]">      <AppSurface interruptElement={interruptElement} resolving={resolving} />      <div className="border-l border-[#DBDBE5] bg-white">        <CopilotChat agentId="interrupt-headless" className="h-full" />      </div>    </div>  );}

function HeadlessInterruptPanel() {
  const { copilotkit } = useCopilotKit();
  const { agent } = useAgent({ agentId: "interrupt-headless" });

  const kickOff = (prompt: string) => {
    agent.addMessage({ id: crypto.randomUUID(), role: "user", content: prompt });
    void copilotkit.runAgent({ agent });
  };

  const interruptElement = useInterrupt({
    renderInChat: false,
    render: ({ interrupt, resolve, cancel }) => (
      <div>
        <p>Pick a slot for {interrupt?.message ?? "a call"}:</p>
        {SLOTS.map((s) => (
          <button key={s.iso} onClick={() => resolve({ chosen_time: s.iso, chosen_label: s.label })}>
            {s.label}
          </button>
        ))}
        <button onClick={() => cancel()}>Cancel</button>
      </div>
    ),
  });

  if (interruptElement) {
    return interruptElement;
  }

  return <button onClick={() => kickOff("Book a call with sales.")}>Book call</button>;
}

function HeadlessInterruptPanelRaw() {
  const { copilotkit } = useCopilotKit();
  const { agent } = useAgent({ agentId: "interrupt-headless" });
  const { pending, resolve } = useHeadlessInterrupt("interrupt-headless");

  const kickOff = (prompt: string) => {
    agent.addMessage({ id: crypto.randomUUID(), role: "user", content: prompt });
    void copilotkit.runAgent({ agent });
  };

  if (pending) {
    return (
      <div>
        <p>Pick a slot for {pending.value.topic ?? "a call"}:</p>
        {SLOTS.map((s) => (
          <button key={s.iso} onClick={() => resolve({ chosen_time: s.iso, chosen_label: s.label })}>
            {s.label}
          </button>
        ))}
        <button onClick={() => resolve({ cancelled: true })}>Cancel</button>
      </div>
    );
  }

  return <button onClick={() => kickOff("Book a call with sales.")}>Book call</button>;
}