2.8Key Takeaway

The Playwright CLI provides a natural mapping from the abstract ReAct pattern to concrete browser automation commands: observation via disk-saved snapshots (read on demand — the token-economics win), action via ref-based click/fill/goto/press, and evaluation via fresh snapshots and eval checks. This mapping turns the theoretical ReAct loop into a practical, implementable test agent — and it is the same mapping that production SDKs like Stagehand and browser-use package behind their intent APIs.