Function launchDetached

src/commands/ultraplan.tsx:294–410

(opts: {
  blurb: string;
  seedPlan?: string;
  getAppState: () => AppState;
  setAppState: (f: (prev: AppState) => AppState) => void;
  signal: AbortSignal;
  onSessionReady?: (msg: string) => void;
})

  return buildLaunchMessage(disconnectedBridge);
}
async function launchDetached(opts: {
  blurb: string;
  seedPlan?: string;
  getAppState: () => AppState;
  setAppState: (f: (prev: AppState) => AppState) => void;
  signal: AbortSignal;
  onSessionReady?: (msg: string) => void;
}): Promise<void> {
  const {
    blurb,
    seedPlan,
    getAppState,
    setAppState,
    signal,
    onSessionReady
  } = opts;
  // Hoisted so the catch block can archive the remote session if an error
  // occurs after teleportToRemote succeeds (avoids 30min orphan).
  let sessionId: string | undefined;
  try {
    const model = getUltraplanModel();
    const eligibility = await checkRemoteAgentEligibility();
    if (!eligibility.eligible) {
      logEvent('tengu_ultraplan_create_failed', {
        reason: 'precondition' as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
        precondition_errors: eligibility.errors.map(e => e.type).join(',') as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
      });
      const reasons = eligibility.errors.map(formatPreconditionError).join('\n');
      enqueuePendingNotification({
        value: `ultraplan: cannot launch remote session —\n${reasons}`,
        mode: 'task-notification'
      });
      return;
    }
    const prompt = buildUltraplanPrompt(blurb, seedPlan);
    let bundleFailMsg: string | undefined;
    const session = await teleportToRemote({
      initialMessage: prompt,
      description: blurb || 'Refine local plan',
      model,
      permissionMode: 'plan',
      ultraplan: true,
      signal,
      useDefaultEnvironment: true,
      onBundleFail: msg => {
        bundleFailMsg = msg;
      }
    });
    if (!session) {
      logEvent('tengu_ultraplan_create_failed', {
        reason: (bundleFailMsg ? 'bundle_fail' : 'teleport_null') as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
      });
      enqueuePendingNotification({
        value: `ultraplan: session creation failed${bundleFailMsg ? ` — ${bundleFailMsg}` : ''}. See --debug for details.`,
        mode: 'task-notification'
      });
      return;
    }