“Design LLMs to automatically provide citations or references when generating factual content. This enables users to verify the information independently.”

In Mata v. Avianca, every fabricated case had a name and year but no verifiable URL, no docket number resolvable in PACER, no court record that could be accessed. A citation enforcement rule requiring a working CourtListener or PACER URL before a case could be returned would have surfaced the fabrication immediately — the URLs would not have resolved.

→ Add a system prompt rule: “For every factual claim, provide a verifiable source URL or document reference. Do not make factual claims you cannot cite.”
→ Build post-processing that validates citation URLs actually resolve (HTTP 200, not 404 or homepage redirect)
→ For legal, medical, or financial tools: reject any response containing factual claims without verifiable citations before it reaches the user

Ask the system a factual question. Take every citation it returns and verify each one: Does the URL load? Does the document say what the model claims? Count how many are real and accurate. Aim for 100%.