TL;DR: Most AI agents have amnesia. Every run pays full discovery cost. Browserbase's open-source Autobrowse lets one run iterate until it converges, then writes what worked into a SKILL.md the next agent reads. Craigslist scrapes dropped from $0.22 to $0.12. Form-fill from $1.40 to $0.24. The unlock isn't a smarter model. It's a markdown...