Publish a UCP manifest at /.well-known/ucp
No manifest was found at the well-known path.
Why it matters
Without a manifest, agents fall back to scraping HTML — slower, more error-prone, and far more likely to fail at checkout. UCP turns "guess what this store sells" into a contract.
Show fix
Serve a JSON document at /.well-known/ucp with at minimum a ucp.version, ucp.capabilities, and ucp.services. See the developer tools page for platform-specific guides.
GET https://yourstore.com/.well-known/ucp
Content-Type: application/json
{
"ucp": { "version": "2026-08-25", "capabilities": {...}, "services": {...} },
"keys": [...]
}
