There are existing platforms like these in the market (ie: Zapier, n8n), but I would consider them not “mainstream” because they still require some technical setup and don’t integrate deeply with natural language or adaptive reasoning. OpenAI’s Agent Builder changes that dynamic — it’s effectively lowering the barrier to entry for automation creation by combining conversational logic, reasoning, and execution within a single interface, and it's open to every Tom, Dick and Harry.
In the short term, this could lead to a wave of “AI-native” automations where individuals and small teams can deploy agents that handle multi-step workflows, customer service, or even internal operations without engineering support.
In the medium term, it might start replacing or integrating with traditional workflow tools — think of agents that can reason through ambiguous instructions, make API calls, and adapt to context dynamically. If OpenAI executes this well, it could mainstream automation the same way ChatGPT mainstreamed AI conversations.
In short, I think this will wipe out many jobs, and allow many small startups to operate as efficiently as big companies.