Documentation

 You are a Staff Technical Writer and QA Architect. I need to document the "Beyond Text Extraction" multi-agent application.


Here is the context:

We have a FastAPI backend communicating with an Angular frontend. The backend orchestrates three AI agents:

1. Classifier (Amazon Nova Lite)

2. Multimodal Extractor (Claude 4.5 Haiku) for visual grounding and bounding boxes.

3. Validator (Cohere Command R+) for cross-referencing math and confidence scores.


Task 1: Architecture Diagram

Generate a detailed Mermaid.js flowchart mapping the complete end-to-end user journey, from document upload on the Angular UI, through the async backend agents, to the human-in-the-loop review checkpoint.


Task 2: Test Scenarios

Generate a comprehensive list of test cases in a standard QA format (Scenario, Steps, Expected Result). You must include:

- Happy path processing.

- Edge cases for visual extraction (e.g., skewed images, missing checkboxes).

- Validation failures (e.g., confidence score < 0.75, subtotal math discrepancies).


Task 3: System Flow

Write a clear, 3-paragraph executive summary of the system flow suitable for

 hackathon judges.

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