{"type":"firestarter.listing","listing":{"id":"lst_-d-psGgd","product_name":"Marston Chambray Shirt","category":"Shirts","description":"The Marston is a long-sleeve button-up cut from a 6 oz denim chambray, light enough to wear as a true shirting fabric but with enough body to hold its structure. The medium indigo wash is the result of a multi-step garment treatment process, including enzyme wash, stone wash, hand sanding, potassium spray and more, giving the fabric a lived-in, worn character straight out of the bag. The front features a Western-style curved yoke seam, a single patch chest pocket with button closure, and a center front placket with 20L corozo buttons. The back includes a straight yoke with a single center box pleat and 18L buttoned back collar detail.","images":["https://cdn.shopify.com/s/files/1/0008/7647/8515/files/MARSTON_CHAMBRAY_SHIRT-WASHED_INDIGO_28778.jpg?v=1776469363","https://cdn.shopify.com/s/files/1/0008/7647/8515/files/MARSTON_CHAMBRAY_SHIRT-WASHED_INDIGO_27843.jpg?v=1776469363","https://cdn.shopify.com/s/files/1/0008/7647/8515/files/MARSTON_CHAMBRAY_SHIRT-WASHED_INDIGO_27849.jpg?v=1776469363","https://cdn.shopify.com/s/files/1/0008/7647/8515/files/MARSTON_CHAMBRAY_SHIRT-WASHED_INDIGO_27850.jpg?v=1776469363","https://cdn.shopify.com/s/files/1/0008/7647/8515/files/MARSTON_CHAMBRAY_SHIRT-WASHED_INDIGO_27853.jpg?v=1776469363","https://cdn.shopify.com/s/files/1/0008/7647/8515/files/MARSTON_CHAMBRAY_SHIRT-WASHED_INDIGO_27854.jpg?v=1776469363","https://cdn.shopify.com/s/files/1/0008/7647/8515/files/MARSTON_CHAMBRAY_SHIRT-WASHED_INDIGO_27859.jpg?v=1776469363","https://cdn.shopify.com/s/files/1/0008/7647/8515/files/MARSTON_CHAMBRAY_SHIRT-WASHED_INDIGO_29190.jpg?v=1776469363"],"price":215,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:43:28.739Z"},"share_url":"https://firestarter.network/l/lst_-d-psGgd","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer ","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_-d-psGgd' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Marston Chambray Shirt' and a budget_max comfortably above $215.00 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}