generated: '2026-08-07' method: probed source: https://blackbuffalo.com/.well-known/ hosts_probed: - https://blackbuffalo.com - https://black-buffalo.myshopify.com - https://developer.blackbuffalo.com - https://api.blackbuffalo.com - https://docs.blackbuffalo.com host: https://blackbuffalo.com other_agent_discovery: - path: /llms.txt status: 200 file: llms/black-buffalo-llms.txt note: Real agent instructions, not a docs index — see llms/. - path: /agents.md status: 200 file: llms/black-buffalo-agents.md note: 'The substantive agent contract: product facts, pricing, retailer list, an explicit list of claims agents may NOT make about a regulated nicotine product, the UCP/MCP endpoints, and a source-priority order.' - path: /robots.txt status: 200 file: black-buffalo-robots.txt note: 'Carries agent policy in comments — points at /agents.md and the UCP/MCP endpoints, asks personal-shopping agents to install https://shop.app/SKILL.md, and states "Checkouts are for humans": no scripted form fills or end-to-end agent flows that finalize payment without explicit contemporaneous human approval. Disallows /cart.js and /recommendations/products specifically so agents use UCP/MCP instead.' - path: /sitemap.xml status: 200 note: Sitemap index whose FIRST child is /sitemap_agentic_discovery.xml, a one-entry sitemap listing https://blackbuffalo.com/agents.md with changefreq weekly — the agent document is deliberately submitted for crawling. - path: /sitemap_agentic_discovery.xml status: 200 - path: /a/locator/sitemap.xml status: 404 note: BROKEN SELF-REFERENCE. Both /llms.txt and /agents.md name this as the authoritative source for store-locator discovery, and /agents.md gives a numbered procedure that begins by fetching it. It does not resolve. The /a/locator/ index itself returns 200. x-evidence: fetched: '2026-08-07' method: GET, anonymous, no credentials note: Every status above was observed directly. developer./api./docs.blackbuffalo.com do not resolve (DNS failure, curl exit 6). hosts: - host: https://blackbuffalo.com documents: - path: /.well-known/ucp status: 200 file: black-buffalo-ucp.json standard: Universal Commerce Protocol (ucp.dev) merchant profile note: Declares UCP versions 2026-04-08 and 2026-01-23, the dev.ucp.shopping MCP service endpoint, the checkout / cart / fulfillment / discount / order / catalog.search / catalog.lookup capabilities, the dev.shopify.catalog extension, and two payment handlers (com.google.pay and dev.shopify.card). The canonical host inside the document is https://black-buffalo.myshopify.com, which serves a byte-identical profile. - path: /.well-known/ucp/2026-04-08 status: 200 note: The latest stable UCP version is individually addressable. - path: /.well-known/openid-configuration status: 200 file: black-buffalo-openid-configuration.json standard: OpenID Connect Discovery 1.0 note: Shopify customer accounts; issuer https://shopify.com/authentication/22588521. Advertises openid, email, customer-account-api:full and customer-account-mcp-api:full. - path: /.well-known/oauth-authorization-server status: 200 file: black-buffalo-oauth-authorization-server.json standard: RFC 8414 OAuth 2.0 Authorization Server Metadata note: Byte-identical to the openid-configuration document. - path: /.well-known/security.txt status: 404 - path: /.well-known/api-catalog status: 404 - path: /.well-known/ai-plugin.json status: 404 - path: /.well-known/agent-card.json status: 404 - path: /.well-known/agent.json status: 404 - path: /.well-known/llms.txt status: 404 note: BROKEN SELF-REFERENCE. /agents.md tells agents that "full product and brand context" lives at https://blackbuffalo.com/.well-known/llms.txt, and /llms.txt points at https://blackbuffalo.com/.well-known/llms-full.txt. Both 404. The real document is served at the root path /llms.txt. - path: /.well-known/llms-full.txt status: 404 note: Referenced from /llms.txt "Key pages"; does not exist. x-shape-fix: converted: '2026-08-20' from: documents note: Rewritten into hosts[] -> documents[], the only shape well_known_docs() in score.rb reads. A served .well-known surface recorded in any other shape scores as absent.