{"domain":"agents.sayerandstone.com","count":3,"changes":[{"captured_at":"2026-10-03T23:22:32","card_hash":"474bd39e0b09367be29e49d47f34a45464d5ac0c6269aa51fd248c4ef8d5607d","previous_card_hash":"ca2685730a397aa70aa237d5985e3c3e3f1ef2bc19a72ae456678b164de12b88","diff":{"skills_added":[],"skills_removed":[],"skills_changed":[],"fields_changed":[{"field":"protocolVersion","before":"1.0","after":null},{"field":"url","before":"https://agents.sayerandstone.com","after":null},{"field":"preferredTransport","before":"HTTP+JSON","after":null},{"field":"supportedInterfaces","before":null,"after":[{"url":"https://agents.sayerandstone.com","protocolBinding":"HTTP+JSON","protocolVersion":"1.0"}]},{"field":"capabilities","before":{"extensions":[{"uri":"https://ucp.dev/2026-04-08/specification/reference","description":"UCP support: this agent serves Universal Commerce Protocol bindings via the A2A transport.","required":false,"params":{"capabilities":{}}}]},"after":{"extensions":[{"uri":"https://ucp.dev/2026-08-25/specification/reference","description":"UCP support: this agent serves Universal Commerce Protocol bindings via the A2A transport.","required":false,"params":{"capabilities":{}}}]}}],"other_changed":false,"is_empty":false,"human_summary":"protocolVersion 1.0 → ∅ · url https://agents.sayerandstone.com → ∅ · preferredTransport HTTP+JSON → ∅ · supportedInterfaces ∅ → https://agents.sayerandstone.com (HTTP+J · capabilities extensions → extensions"}},{"captured_at":"2026-10-01T20:36:48","card_hash":"ca2685730a397aa70aa237d5985e3c3e3f1ef2bc19a72ae456678b164de12b88","previous_card_hash":"27f8fee4d306bab13edcd313cfc5e65c3ff255834bca89d0e5b3a5a7a4a94fdd","diff":{"skills_added":[],"skills_removed":[],"skills_changed":[{"id":"jewelry-purchase","fields":["description"]}],"fields_changed":[{"field":"description","before":"Lab-grown diamond fine jewelry from Sayer & Stone. Agent purchases via Tempo MPP, x402 USDC on Base, and Stripe SPT. Made to order.","after":"Lab-grown diamond fine jewelry from Sayer & Stone. Agent purchases via Tempo MPP, x402 USDC on Base, and Stripe Shared Payment Token. Made to order."}],"other_changed":false,"is_empty":false,"human_summary":"updated 1 skill · description Lab-grown diamond fine jewelry from Saye → Lab-grown diamond fine jewelry from Saye"}},{"captured_at":"2026-07-10T12:46:26","card_hash":"27f8fee4d306bab13edcd313cfc5e65c3ff255834bca89d0e5b3a5a7a4a94fdd","previous_card_hash":null,"diff":{"skills_added":[{"id":"jewelry-purchase","name":"Jewelry purchase","description":"Buy lab-grown diamond fine jewelry (earrings, bracelets) with variants drawn from length, metal, and total carat weight. Multi-rail (Tempo MPP, x402 USDC on Base, Stripe SPT). Made to order.","tags":["commerce","jewelry","fine-jewelry","lab-grown","made-to-order"],"inputModes":null,"outputModes":null}],"skills_removed":[],"skills_changed":[],"fields_changed":[{"field":"name","before":null,"after":"Sayer & Stone"},{"field":"description","before":null,"after":"Lab-grown diamond fine jewelry from Sayer & Stone. Agent purchases via Tempo MPP, x402 USDC on Base, and Stripe SPT. Made to order."},{"field":"version","before":null,"after":"1.0.0"},{"field":"protocolVersion","before":null,"after":"1.0"},{"field":"url","before":null,"after":"https://agents.sayerandstone.com"},{"field":"documentationUrl","before":null,"after":"https://agents.sayerandstone.com/llms.txt"},{"field":"preferredTransport","before":null,"after":"HTTP+JSON"},{"field":"capabilities","before":null,"after":{"extensions":[{"uri":"https://ucp.dev/2026-04-08/specification/reference","description":"UCP support: this agent serves Universal Commerce Protocol bindings via the A2A transport.","required":false,"params":{"capabilities":{}}}]}}],"other_changed":true,"is_empty":false,"human_summary":"added 1 skill · name ∅ → Sayer & Stone · description ∅ → Lab-grown diamond fine jewelry from Saye · version ∅ → 1.0.0 · protocolVersion ∅ → 1.0 · url ∅ → https://agents.sayerandstone.com · documentationUrl ∅ → https://agents.sayerandstone.com/llms.tx · preferredTransport ∅ → HTTP+JSON · capabilities ∅ → extensions"}}]}