UCP conformance score, top priorities, impact & effort matrix, and copy-paste fixes for every issue.
stays-2rkl.ucpsandbox.com publishes a conforming profile with broad capability coverage.
UCP Conformance is solid (96/100).
Fix broken spec or schema URLs → Publish Organization schema (JSON-LD) on the homepage
One or more spec/schema URLs declared in the profile do not resolve.
No Organization-typed JSON-LD detected on your homepage.
Prioritised recommendations by expected impact and implementation effort
High impact, low effort
High impact, high effort
Medium impact & effort
Lower priority
Response time benchmarked against 126 Customs we monitor.
All improvements ranked by priority, with evidence and actionable fixes.
One or more spec/schema URLs declared in the profile do not resolve.
Spec and schema URLs let agents validate request/response shapes before sending. When they 404 or time out, runtime validation degrades to "best effort" and strict agents reject the integration entirely. Common cause: copy-pasting a placeholder URL during initial profile setup. See the Full Check Breakdown for the specific URLs that failed.
No Organization-typed JSON-LD detected on your homepage.
Organization schema gives agents a structured representation of your brand identity: name, logo, social profiles, contact info, founding date. Agents use this to verify you are who you claim to be and to link your profile data to a recognizable entity.
Drop into <head> or end of <body>. Use OnlineStore (more specific) when the entire site is an ecommerce store; Organization is the generic fallback.
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "OnlineStore",
"name": "Yourstore",
"url": "https://yourstore.com",
"logo": "https://yourstore.com/logo.png",
"sameAs": [
"https://twitter.com/yourstore",
"https://www.instagram.com/yourstore"
],
"contactPoint": {
"@type": "ContactPoint",
"telephone": "+1-800-000-0000",
"contactType": "Customer Service"
}
}
</script>Every signal we evaluate, grouped by category.
Can AI agents find your store and its UCP profile?
Profile served over a secure connection.
Profile URL uses https://
Agents reject non-HTTPS endpoints outright. Signed payloads over HTTP are meaningless because the channel itself is tamperable.
Profile fetched OK from /.well-known/ucp.
HTTP 200
Agents start every session by fetching this URL. If it 404s or times out, the store is invisible to agent commerce.
robots.txt allows agent crawlers to fetch the profile.
robots.txt allows /.well-known/ucp
Agents respect robots.txt. Even a published profile gets ignored if the file is disallowed for known agent user-agents.
Hand-written brief at /llms.txt for AI agents.
Found at /llms.txt
Emerging convention (analogous to robots.txt). Recommendation/discovery agents read it for brand context, return policy, and crawl preferences.
XML sitemap published at /sitemap.xml.
Found at /sitemap.xml
Tells agents which pages are canonical and how often they change. Without it, agents fall back to following internal links.
OG meta tags on the homepage.
og:title and og:type/url present
OG tags drive how your store unfurls in agent surfaces, Slack, iMessage, and ChatGPT shares.
Schema.org Organization (or OnlineStore) JSON-LD on homepage.
Missing or incomplete on homepage
Gives agents a structured representation of your brand identity — used to verify you are who your profile claims you are.
Viewport meta tag for mobile rendering.
<meta name="viewport"> present
Mobile agent sessions render in browser sandboxes that respect this. Without it, screenshots taken by agents are unreadable.
Does your profile meet the published spec?
Profile structure conforms to the published UCP spec.
No structural errors
Strict UCP agents reject profiles with structural errors. The error code in the diagnostic shows which field failed.
ucp.version follows YYYY-MM-DD format.
Version: 2026-08-25
UCP versions are dates, not semver. Agents pick the closest matching schema based on this string.
Root-level keys array (canonical since 2026-07-12; legacy signing_keys also accepted) for response verification.
signing_keys present
Required for tokenized payment flows in v2026-04-08+. Stores using checkout-link redirects (e.g. WooCommerce native) often skip this safely.
Profile passes structural and field-level rules.
No outstanding validation issues
Each warning is a strict-spec deviation — the recommendations section above lists them with copy-code fixes.
Resolves the 16 spec/schema URLs declared across the profile to confirm agents can fetch each one.
Did not resolve (3 of 16): https://ucp.dev/2026-08-25/specification/location/lookup, https://mock.dev/ucp/payment-handler, https://ucpsandbox.com/docs/pay-at-property
Spec and schema URLs let agents validate request/response shapes before sending. Broken URLs degrade runtime validation to "best effort" and cause strict agents to refuse the capability entirely.
What operations can agents actually perform?
Number of agent-readable capabilities under ucp.capabilities.
1 of 6 capability families detected: Payment Token Exchange. A family counts once however many namespaces or extensions declare it.
Capabilities tell agents what operations to attempt. More coverage = more sessions complete end-to-end without falling back to scraping.
Store declares a checkout-namespaced capability.
No checkout capability
Without a checkout capability, agents can browse but can't complete a purchase end-to-end.
Service transports (REST/MCP/A2A/Embedded) declared on services.
REST, MCP
Transports tell agents how to actually call your endpoints. MCP and REST are the most widely supported today.
Tokenized payment handlers registered for in-conversation checkout.
2 handlers registered
Tokenized payment lets agents complete purchases without redirecting the buyer to a hosted checkout. Empty by design is valid for WooCommerce-style native checkouts.
Live reachability check against https://stays-2rkl.ucpsandbox.com/ucp/common.
Host responded with HTTP 404 — endpoint reachable but path may be method-restricted
A declared transport that does not respond means agents will hit a dead end the moment they try to use the capability — even if the profile itself looks perfect.
Live reachability check against https://stays-2rkl.ucpsandbox.com/mcp.
tools/list returned a JSON-RPC response in 289ms
A declared transport that does not respond means agents will hit a dead end the moment they try to use the capability — even if the profile itself looks perfect.
Live reachability check against https://stays-2rkl.ucpsandbox.com/ucp.
Host responded with HTTP 404 — endpoint reachable but path may be method-restricted
A declared transport that does not respond means agents will hit a dead end the moment they try to use the capability — even if the profile itself looks perfect.
The plain-text brief this store publishes to AI agents. Captured on the most recent check.
# Harbour Row Stays
> A small guesthouse on the harbour. A reference travel store for booking agents.
> Reference test stores. Nothing here is for sale: test cards only, no goods ship.
Reference lodging store operated by UCP Sandbox. UCP 2026-08-25; lodging booking is the draft capability dev.ucp.lodging.booking (not in the 2026-08-25 release).
Everything an agent can do here a person can do on the same pages: same rooms, same booking sessions, same bookings.
## Machine surfaces
- UCP profile: https://stays-2rkl.ucpsandbox.com/.well-known/ucp
- REST (lodging service): https://stays-2rkl.ucpsandbox.com/ucp/booking-sessions and friends (OpenAPI at https://stays-2rkl.ucpsandbox.com/ucp/openapi.json)
- MCP endpoint (JSON-RPC): https://stays-2rkl.ucpsandbox.com/mcp: search_properties, create/get/update/complete/cancel_booking_session, get_booking, cancel_booking, lookup_locations
- Store search (not UCP): https://stays-2rkl.ucpsandbox.com/ucp/search?start_date=YYYY-MM-DD&end_date=YYYY-MM-DD&adults=2
- WebMCP: storefront pages register tools on document.modelContext
## Property
- Property id: prop_harbour_row
- Address: 14 Harbour Row, Portland, ME 04101
- Check-in from 15:00, check-out by 11:00 (America/New_York)
- Bookable 60 nights ahead, up to 14 nights per stay, one room per booking session
## Rooms
- rt_harbour: Harbour Room. Sleeps 2 · Queen bed · Sea view · 24 m². From $189.00 a night on the flexible rate.
- rt_loft: Loft Suite. Sleeps 3 · King bed + daybed · Terrace · 38 m². From $264.00 a night on the flexible rate.
- rt_garden: Garden Studio. Sleeps 2 · Double bed · Kitchenette · 28 m². From $172.00 a night on the flexible rate.
- rt_quay: Quay Twin. Sleeps 2 · Twin beds · Courtyard · 21 m². From $158.00 a night on the flexible rate.
## Rate plans
- rp_flex: Flexible. Room only. Free cancellation until 3 pm hotel time two days before check-in; after that the first night is charged. Pay when you book or at the property.
- rp_flex_bb: Flexible with breakfast. Everything in Flexible, plus breakfast for two each morning, served from 7:30 to 10 in the front room.
- rp_saver: Non-refundable. Room only, 12% off the flexible rate. Paid in full when you book; no changes or refunds once booked.
- rp_member: Member rate. 10% off the flexible rate with the same free cancellation, plus late check-out until 1 pm. For Harbour Row Club members: link your account at the guest step.
## Policies
- Cancellation: Flexible rates can be cancelled free of charge until 3 pm hotel time two days before check-in. After that deadline the first night is charged and the rest is refunded, or released if you were paying at the property. Non-refundable rates are paid in full at booking and are not refunded or changed. Cancel from your confirmation page or through the booking's cancel operation.
- Payment: Flexible rates can be paid in full when you book, or at the property on arrival with a card held as a guarantee. Non-refundable rates are paid in full when you book. This is a test store: only test cards are accepted and no money moves.
- House rules: Check-in is from 3 pm with a door code sent on the morning of arrival; check-out is by 11 am (1 pm on the member rate). The house is quiet after 10 pm. No smoking anywhere in the building. Dogs are welcome in the Garden Studio by arrangement and nowhere else. Children are welcome; the Harbour Room and Loft Suite take one child in addition to two adults.
- Privacy: A test store keeps booking details for seven days and then deletes them. Nothing is shared with anyone; nobody is expecting you.
## Testing
- Payment instruments (handler mock_payment_handler): instr_1 (Visa …1234, approves); instr_2 (Mastercard …5678, approves); instr_fail (Visa …0000, declines)
- Pay at the property: payment.selected_term_id "pt_pay_at_property", instrument handler_id "pay_at_property" (card held as guarantee, nothing charged)
- Member: [email protected] is a Harbour Row Club member (member rate rp_member)
## FAQ
- Q: Is anyone actually expecting me? A: No. Harbour Row Stays is a reference store for testing booking agents. Bookings are recorded, confirmed and cancellable, but the house does not exist.
- Q: When is the free cancellation deadline? A: 3 pm hotel time (America/New_York) two days before check-in, on flexible and member rates. The exact deadline is on every booking session and confirmation.
- Q: What does 'pay at the property' mean here? A: Nothing is charged when you book. A test card is held as a guarantee under the pay_at_property handler and the full amount is due at check-in.
- Q: How do I get the member rate? A: Link a Harbour Row Club account at the guest step. In this test store, [email protected] is a member; the rate is 10% off flexible with late check-out.
- Q: Can I book more than one room? A: One room per booking session. Make a second session for a second room.
- Q: How far ahead can I book? A: Sixty days. The calendar rolls forward every night so there are always sixty bookable nights.| Booking ✓ Bound | 2026-08-25 |
| Payment Terms Extension ✓ Bound | 2026-08-25 |
| Policy Cancellation Extension ✓ Bound | 2026-08-25 |
| Location Lookup ✓ Bound | 2026-08-25 |
| UCP Status | Verified |
| Endpoint | https://stays-2rkl.ucpsandbox.com/.well-known/ucp |
| HTTP Status | 200 |
| UCP Version | 2026-08-25 |
| Transports | REST, MCP |
| Last Observed | |
| Last Full Index |
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