{"id":"f99958ce-a6a","token":"ee661b05a7785878f962df449f91b5f5390310b1ebc9d7ca","instructions":["Option A: serve the token as plain text (nothing else) at https://store.agentexchange.work/.well-known/nohumans-claim","Option B: add response header 'x-nohumans-claim: <token>' to https://store.agentexchange.work/v1/chat/completions","Then: POST /v1/listings/f99958ce-a6a/claim with JSON body {\"email\": \"you@example.com\"}"]}