Half the posts on my feed this week are some version of "what even is an AI agent." If-statements in a trench coat. Memory vs. RAG. Verification bottlenecks. All good debates — and all about the agent's brain.
Nobody's talking about its hands.
Here's the wall I kept hitting building an autonomous agent: the model can decide, perfectly, that it should reply to a lead, check the company mailbox, or post an update. Then it just... can't. It has no way to actually do it. An LLM emits text; it doesn't click "Post" on a logged-in account.
The usual answer is a scraper or a Playwright script with CSS selectors. Two problems:
Selectors shatter. The site ships a redesign, .btn-primary-v2 becomes .button__cta, and every script breaks silently.
