<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019f1402-c5b0-7658-9cc1-9a8a948745f1,g:de45fbb0-7d6a-4cb4-9af0-0864243db222-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://agci.com/role/Cover" xlink:type="simple" xlink:href="agci-20260629.xsd#Cover"/>
  <link:presentationLink xlink:role="http://agci.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019f1402-c5b0-7c4e-a48b-930fa8706289" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_DocumentType_019f1402-c5b0-7c4e-a48b-930fa8706289" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019f1402-c5b0-73e2-8b14-eb9d0dd6663c" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_DocumentPeriodEndDate_019f1402-c5b0-73e2-8b14-eb9d0dd6663c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019f1402-c5b0-769a-b029-18cae422942c" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_EntityRegistrantName_019f1402-c5b0-769a-b029-18cae422942c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019f1402-c5b0-7267-9476-6dd0bd01fa9e" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019f1402-c5b0-7267-9476-6dd0bd01fa9e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019f1402-c5b0-73a5-8ca7-38a77583b271" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_EntityFileNumber_019f1402-c5b0-73a5-8ca7-38a77583b271" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019f1402-c5b0-7d42-87e0-4d88c812daad" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_EntityTaxIdentificationNumber_019f1402-c5b0-7d42-87e0-4d88c812daad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019f1402-c5b0-7f89-be09-8aa2a6e200da" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_EntityAddressAddressLine1_019f1402-c5b0-7f89-be09-8aa2a6e200da" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019f1402-c5b0-736a-9578-460ff2eadedf" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_EntityAddressCityOrTown_019f1402-c5b0-736a-9578-460ff2eadedf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019f1402-c5b0-7ffb-b67b-51e8e6f2b29e" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_EntityAddressStateOrProvince_019f1402-c5b0-7ffb-b67b-51e8e6f2b29e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019f1402-c5b0-7ec6-ab1f-4cb4ac5e6703" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_EntityAddressPostalZipCode_019f1402-c5b0-7ec6-ab1f-4cb4ac5e6703" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019f1402-c5b0-7176-bd00-5495114f9a4e" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_CityAreaCode_019f1402-c5b0-7176-bd00-5495114f9a4e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019f1402-c5b0-7cee-885e-b9a3917423cf" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_LocalPhoneNumber_019f1402-c5b0-7cee-885e-b9a3917423cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019f1402-c5b0-7625-b503-4cafcb98ae84" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_WrittenCommunications_019f1402-c5b0-7625-b503-4cafcb98ae84" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019f1402-c5b0-762d-b7e1-0471952c16b9" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_SolicitingMaterial_019f1402-c5b0-762d-b7e1-0471952c16b9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019f1402-c5b0-7bd8-af34-14161614c267" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_PreCommencementTenderOffer_019f1402-c5b0-7bd8-af34-14161614c267" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019f1402-c5b0-7d13-be87-b4ad4cf652b5" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019f1402-c5b0-7d13-be87-b4ad4cf652b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019f1402-c5b0-7568-93b2-a30bfe985318" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_EntityEmergingGrowthCompany_019f1402-c5b0-7568-93b2-a30bfe985318" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityExTransitionPeriod_019f1402-c5b0-755f-9dc9-323d167d6525" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityExTransitionPeriod"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_EntityExTransitionPeriod_019f1402-c5b0-755f-9dc9-323d167d6525" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019f1402-c5b0-765d-a5c6-520f0c0d9b4b" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_EntityCentralIndexKey_019f1402-c5b0-765d-a5c6-520f0c0d9b4b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019f1402-c5b0-7b67-861b-00e64fd9198a" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019f1402-c5b0-7a54-9fb5-931eda85b7f5" xlink:to="loc_dei_AmendmentFlag_019f1402-c5b0-7b67-861b-00e64fd9198a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
