- Amazon began blocking Muse from its retail site; agents can no longer browse or buy from its catalog.
- Delta says it is protecting customers from unauthorized automated activity and has no agent partnership.
- Yelp blocks non-human traffic unless agents license its data; eBay restricts unauthorized agents; Zillow allows them but anti-bot filters sometimes catch them.
- A Cloudflare crawler-defaults change on Sept 15 also shifted many sites to block AI agents on ad-bearing pages.
- Agents can act as guests for public info; after the customer signs in, they choose read-only or write access.
- Sessions carry across channels, so a pre-login question and a post-login order belong to one visit.
- Businesses decide whether the agent uses the regular website, their APIs (MCP, OpenAPI), or their own agent.
- The standard identifies the agent and its permissions — separating good bots acting for a user from bad ones.
- Sierra's Bret Taylor (also OpenAI board chair) said he would be 'really disappointed' if competitors stayed out.
- It lands alongside a rival standard: Visa's Trusted Agent Protocol, which already covers about 175 million merchants; Stripe and Shopify are in both.
- Payments, push notifications, and more granular permissions are future extensions, not part of v0.1.
- No release is set beyond the v0.1 spec and reference implementation due later in October.
Useful?