Design an insurance claims agent with RAG

An insurer receives claims by email with PDF attachments. Design a backend agent that reads each claim, pulls out the facts, retrieves the customer's policy and the relevant coverage rules, and decides approve or deny with an explanation that cites the evidence.

Cover:

• Ingesting emails and PDFs durably, and treating a re-delivered email as the same claim.
• Extraction, retrieval and the decision step, and sending missing, conflicting or unreadable evidence to a human instead of guessing.
• What a claims reviewer can see: status, the decision, the cited documents and the exact policy version used.
• Recovering from model or processing failures while keeping each claim within a token budget.