```mermaid
flowchart TD

  %% External/shared services/utilities
  subgraph External and Shared
    AiObjectsCall[AiObjects.call()];
    AiObjectsGen[AiObjects.generateImage()];
    ExtractionService[ExtractionService.extractContent()];
    GenServicePrompt[GenerationService.getAdaptiveExtractionPrompt()];
    GenServiceRender[GenerationService.renderReport()];
    Normalizer[NormalizationService (discover/apply/validate)];
    SubPipelineMerge[subPipeline._applyMerging()];
    JsonUtilsExtract[jsonUtils.extractJsonString()];
    JsonUtilsRepair[jsonUtils.repairBrokenJson()];
    JsonUtilsSections[jsonUtils.extractSectionsFromDocument()];
    JsonUtilsBuildCtx[jsonUtils.buildContinuationContext()];
    BuildGenPrompt[subPromptBuilderGeneration.buildGenerationPrompt()];
    UtilsSanitize[subSharedAiUtils.sanitizePromptContent()];
    UtilsBuildPH[subSharedAiUtils.buildPromptWithPlaceholders()];
  end

  %% AiService
  subgraph serviceAi mainServiceAi py - AiService
    AiSvc_create[create()]
    AiSvc_init[__init__()]
    AiSvc_ensure[_ensureAiObjectsInitialized()]
    AiSvc_initSubs[_initializeSubmodules()]
    AiSvc_readImage[readImage()]
    AiSvc_generateImage[generateImage()]
    AiSvc_callPlan[callAiPlanning()]
    AiSvc_callDocs[callAiDocuments()]
    AiSvc_sanitize[sanitizePromptContent()]
  end

  AiSvc_create --> AiObjectsCall
  AiSvc_create --> AiSvc_initSubs
  AiSvc_initSubs --> ExtractionService
  AiSvc_initSubs --> SubCore_new[SubCoreAi(...)]
  AiSvc_initSubs --> SubDocProc_new[SubDocumentProcessing(...)]
  AiSvc_initSubs --> SubDocGen_new[SubDocumentGeneration(...)]
  AiSvc_ensure --> AiObjectsCall
  AiSvc_ensure --> AiSvc_initSubs
  AiSvc_readImage --> SubCore_readImage
  AiSvc_generateImage --> SubCore_generateImage
  AiSvc_callPlan --> SubCore_callPlan
  AiSvc_callDocs --> SubCore_callDocs
  AiSvc_sanitize --> UtilsSanitize

  %% SubCoreAi
  subgraph serviceAi subCoreAi py - SubCoreAi
    SubCore_ctor[__init__()]
    SubCore_analyze[_analyzePromptAndCreateOptions()]
    SubCore_loop[_callAiWithLooping()]
    SubCore_extract[_extractSectionsFromResponse()]
    SubCore_should[_shouldContinueGeneration()]
    SubCore_buildFinal[_buildFinalResultFromSections()]
    SubCore_callPlan[callAiPlanning()]
    SubCore_callDocs[callAiDocuments()]
    SubCore_readImage[readImage()]
    SubCore_generateImage[generateImage()]
  end

  SubCore_analyze --> AiObjectsCall
  SubCore_analyze --> AiSvc_sanitize
  SubCore_loop --> AiObjectsCall
  SubCore_loop --> SubCore_extract
  SubCore_loop --> SubCore_should
  SubCore_loop --> SubCore_buildFinal
  SubCore_extract --> JsonUtilsExtract
  SubCore_extract --> JsonUtilsRepair
  SubCore_extract --> JsonUtilsSections
  SubCore_loop --> JsonUtilsBuildCtx
  SubCore_callPlan --> UtilsBuildPH
  SubCore_callPlan --> AiObjectsCall
  SubCore_callDocs --> AiSvc_ensure
  SubCore_callDocs --> SubCore_analyze
  SubCore_callDocs --> BuildGenPrompt
  SubCore_callDocs --> SubCore_loop
  SubCore_callDocs --> GenServiceRender
  SubCore_callDocs -->|documents present| AiSvc_callDocs_toDP[services.ai.documentProcessor.callAiText()]
  SubCore_readImage --> AiObjectsCall
  SubCore_generateImage --> AiObjectsGen

  %% SubDocumentProcessing
  subgraph serviceAi subDocumentProcessing py - SubDocumentProcessing
    SDP_ctor[__init__()]
    SDP_extractionService[prop: extractionService]
    SDP_perChunk[processDocumentsPerChunk()]
    SDP_perChunkJson[processDocumentsPerChunkJson()]
    SDP_perChunkJsonPrompt[processDocumentsPerChunkJsonWithPrompt()]
    SDP_withCont[processDocumentsWithContinuation()]
    SDP_callText[callAiText()]
    SDP_partsMap[_processPartsWithMapping()]
    SDP_chunksMap[_processChunksWithMapping()]
    SDP_mergeParts[_mergePartResults()]
    SDP_convertPartsJson[_convertPartResultsToJson()]
    SDP_mergeChunks[_mergeChunkResults()]
    SDP_mergeChunksClean[_mergeChunkResultsClean()]
    SDP_mergeChunksJson[_mergeChunkResultsJson()]
    SDP_buildContPrompt[_buildContinuationPrompt()]
    SDP_contLoop[_processWithContinuationLoop()]
    SDP_buildIterPrompt[_buildContinuationIterationPrompt()]
  end

  SDP_extractionService --> ExtractionService
  SDP_perChunk --> ExtractionService
  SDP_perChunk --> SDP_partsMap
  SDP_perChunk --> SDP_mergeParts
  SDP_perChunkJson --> ExtractionService
  SDP_perChunkJson --> SDP_partsMap
  SDP_perChunkJson --> SDP_convertPartsJson
  SDP_perChunkJson --> Normalizer
  SDP_perChunkJsonPrompt --> ExtractionService
  SDP_perChunkJsonPrompt --> SDP_chunksMap
  SDP_perChunkJsonPrompt --> SDP_mergeChunksJson
  SDP_withCont --> SDP_buildContPrompt
  SDP_withCont --> SDP_contLoop
  SDP_contLoop --> SDP_perChunkJsonPrompt
  SDP_contLoop --> SDP_buildIterPrompt
  SDP_callText --> SDP_perChunk

  %% internals mapping to AI/external
  SDP_partsMap --> AiObjectsCall
  SDP_chunksMap --> SubCore_readImage
  SDP_chunksMap --> AiObjectsCall
  SDP_mergeParts --> SubPipelineMerge
  SDP_convertPartsJson --> SubPipelineMerge
  SDP_mergeChunks --> SubPipelineMerge
  SDP_mergeChunksClean --> SubPipelineMerge
  SDP_mergeChunksJson --> SubPipelineMerge

  %% SubDocumentGeneration
  subgraph serviceAi subDocumentGeneration py - SubDocumentGeneration
    SDG_ctor[__init__()]
    SDG_callGen[callAiWithDocumentGeneration()]
    SDG_procUnified[_processDocumentsUnified()]
    SDG_validateUnified[_validateUnifiedResponseStructure()]
    SDG_validateDoc[_validateDocumentStructure()]
    SDG_buildUnified[_buildUnifiedResult()]
    SDG_processDoc[_processDocument()]
    SDG_callAiJson[_callAiJson()]
    SDG_postRaw[_postRawDataChatMessage()]
  end

  SDG_callGen --> GenServicePrompt
  SDG_callGen --> SDG_procUnified
  SDG_procUnified --> SDP_withCont
  SDG_procUnified --> SDG_validateUnified
  SDG_procUnified --> SDG_postRaw
  SDG_buildUnified --> SDG_processDoc
  SDG_processDoc --> BuildGenPrompt
  SDG_processDoc --> AiObjectsCall
  SDG_processDoc --> GenServiceRender
  SDG_callAiJson --> SDP_perChunkJson

  %% Cross-module interactions from AiService-created submodules (contextual)
  AiSvc_initSubs --> SubCore_ctor
  AiSvc_initSubs --> SDP_ctor
  AiSvc_initSubs --> SDG_ctor
```