Function call

src/tools/EnterPlanModeTool/EnterPlanModeTool.ts:77–102

(_input, context)

  renderToolResultMessage,
  renderToolUseRejectedMessage,
  async call(_input, context) {
    if (context.agentId) {
      throw new Error('EnterPlanMode tool cannot be used in agent contexts')
    }

    const appState = context.getAppState()
    handlePlanModeTransition(appState.toolPermissionContext.mode, 'plan')

    // Update the permission mode to 'plan'. prepareContextForPlanMode runs
    // the classifier activation side effects when the user's defaultMode is
    // 'auto' — see permissionSetup.ts for the full lifecycle.
    context.setAppState(prev => ({
      ...prev,
      toolPermissionContext: applyPermissionUpdate(
        prepareContextForPlanMode(prev.toolPermissionContext),
        { type: 'setMode', mode: 'plan', destination: 'session' },
      ),
    }))

    return {
      data: {
        message:
          'Entered plan mode. You should now focus on exploring the codebase and designing an implementation approach.',
      },
    }
  },
  mapToolResultToToolResultBlockParam({ message }, toolUseID) {
    const instructions = isPlanModeInterviewPhaseEnabled()
      ? `${message}