GPT-6 Astra just took someone's credit card, designed a Teenage Engineering-style DJ controller, sourced the parts, read the Chinese datasheets, built the CAD model, and ordered everything itself. No human sat between concept and purchase order.
We've watched this exact pattern play out in trading infrastructure since 2018. The moment an AI agent gets execution authority over real capital, the interesting question stops being "can it finish the task" and becomes "who audits the decision path it took to get there." Adaptive spread, order routing, front-running detection: all of it needs the same guardrails Astra just skipped past to buy a DJ controller.
Autonomous execution is the easy part now. Accountable autonomous execution, the kind that survives an audit or a bad fill, is the infrastructure problem most teams haven't built for yet.
Founders shipping agents with wallet or purchasing access: what does your kill switch actually look like?