generated: '2026-09-05' method: probed source: live probes of /.well-known/ on kronos.seshat.markets, seshat.markets and www.seshat.markets summary: >- Three real documents are served, all on the API/product host kronos.seshat.markets: an x402 payment-discovery manifest (version 1 + a 20-entry paid-resource list), an A2A agent card at the canonical /.well-known/agent-card.json, and a second card at the legacy /.well-known/agent.json. That is a genuine WellKnown hit. Nothing else is served anywhere: no security.txt (so NO SecurityTxt pointer), no openid-configuration, no oauth-authorization-server (consistent with the keyless x402 auth model), no api-catalog, and no ai-plugin.json. pointer_basis: >- WellKnown pointer emitted on the strength of the three 200 JSON documents on kronos.seshat.markets. SecurityTxt pointer NOT emitted - RFC 9116 is unimplemented on every host (the /security page carries the disclosure contact instead). false_positive_watch: >- kronos.seshat.markets 308-redirects unknown /.well-known/* paths to seshat.markets, and seshat.markets answers HTTP 200 with its 5,092-byte SPA landing shell for EVERY /.well-known/* path, including paths that do not exist. Those 200s are recorded below as misses, not hits. hosts: - host: https://kronos.seshat.markets documents: - path: /.well-known/x402 status: 200 file: seshat-markets-x402.json note: x402 payment discovery manifest - version 1 plus resources[] listing 20 paid endpoints - path: /.well-known/agent-card.json status: 200 file: ../a2a/seshat-markets-agent-card.json note: A2A agent card (canonical path) - graded in a2a/seshat-markets-a2a.yml - path: /.well-known/agent.json status: 200 file: ../a2a/seshat-markets-agent-legacy.json note: A2A agent card (legacy pre-0.3 path) - capabilities is an object here, unlike the canonical card - path: /.well-known/security.txt status: 308 note: redirects to seshat.markets which serves the SPA shell - a miss - path: /.well-known/openid-configuration status: 308 note: redirects to the seshat.markets SPA shell - a miss - path: /.well-known/oauth-authorization-server status: 308 note: redirects to the seshat.markets SPA shell - a miss - path: /.well-known/oauth-protected-resource status: 308 note: redirects to the seshat.markets SPA shell - a miss - path: /.well-known/api-catalog status: 308 note: redirects to the seshat.markets SPA shell - a miss - path: /.well-known/ai-plugin.json status: 308 note: redirects to the seshat.markets SPA shell - a miss - host: https://seshat.markets documents: - path: /.well-known/security.txt status: 200 note: 5,092-byte HTML SPA shell, not a document - a miss - path: /.well-known/openid-configuration status: 200 note: SPA shell - a miss - path: /.well-known/oauth-authorization-server status: 200 note: SPA shell - a miss - path: /.well-known/oauth-protected-resource status: 200 note: SPA shell - a miss - path: /.well-known/api-catalog status: 200 note: SPA shell - a miss - path: /.well-known/ai-plugin.json status: 200 note: SPA shell - a miss - path: /.well-known/x402 status: 200 note: SPA shell - a miss (the real manifest is on kronos.seshat.markets) - path: /.well-known/agent-card.json status: 200 note: SPA shell - a miss - path: /.well-known/agent.json status: 200 note: SPA shell - a miss - host: https://www.seshat.markets documents: - path: /.well-known/security.txt status: 308 note: redirects to seshat.markets SPA shell - a miss (all nine probed paths 308 the same way)