Cross-Site Agent Intelligence: Why We Built the ARP Profile

There is a quiet pattern hiding inside every production engineering team that runs AI agents in 2026. Site A’s content agent learns that Claude 3.5 occasionally fabricates ISBN-13 numbers when it can’t find a citation. Site A’s engineer fixes it: a pre-flight regex check, a retry with a stricter system prompt, a validation step before the answer ships. The fix takes a Tuesday afternoon. It works. The team moves on. Six months later, site B’s content agent — different team, different stack, diffe