Most ecommerce platforms have some version of product availability.
A product is active. It is in stock. It has a price. It can appear on the storefront.
For a human-facing ecommerce site, that model can be good enough for a long time. The storefront can render a product page, show an “Add to cart” button, and let checkout perform final validation later.
For agent-ready commerce, that model becomes too vague.
The problem is not that available is wrong. The problem is that it hides too many different decisions behind one word.
