{"type":"firestarter.listing","listing":{"id":"lst_GzCchncg","product_name":"Heavyweight Boxy Long Sleeve T-shirt ~ Black","category":"Tees","description":"We're proud to launch the latest iteration of our best-selling Heavyweight T-shirts. We've started by knitting a new version of our fan favorite heavyweight jersey in Los Angeles. The jersey is wider to accommodate more room in the chest and laundered to reduce shrinkage. The fit is shorter in the body and more generous across the chest than our Heavyweight Long Sleeve T-shirt.\n\nModel is 6'1\" / 155lbs and wears a size Medium\n270GSM combed cotton heavyweight jersey\nLaundered for minimal shrinkage\n100% cotton\nRoomy chest and shorter length fit\nTriple-stitched \"Never Sag\" collar\nKnit in LA\nCut and sewn in San Francisco\n","images":["https://cdn.shopify.com/s/files/1/0028/6132/files/3S-02FEB26-LS_TEE_HEAVYWEIGHT_BLACK_FRONT_CROPPED_ONBODY.jpg?v=1771451838","https://cdn.shopify.com/s/files/1/0028/6132/files/3S-02FEB26-LS_TEE_HEAVYWEIGHT_BLACK_BACK_FULLBODY_ONBODY.jpg?v=1771451838","https://cdn.shopify.com/s/files/1/0028/6132/files/3S-02FEB26-LS_TEE_HEAVYWEIGHT_BLACK_FRONT_FULLBODY_ONBODY.jpg?v=1771451838","https://cdn.shopify.com/s/files/1/0028/6132/files/3S-02FEB26-LS_TEE_HEAVYWEIGHT_BLACK_FRONT.jpg?v=1771451838","https://cdn.shopify.com/s/files/1/0028/6132/files/3S-02FEB26-LS_TEE_HEAVYWEIGHT_BLACK_D1.jpg?v=1771451838","https://cdn.shopify.com/s/files/1/0028/6132/files/3S-02FEB26-LS_TEE_HEAVYWEIGHT_BLACK_D2.jpg?v=1771451838","https://cdn.shopify.com/s/files/1/0028/6132/files/3S-02FEB26-LS_TEE_HEAVYWEIGHT_BLACK_D3.jpg?v=1771451838"],"price":70,"currency":"USD","in_stock":true,"inventory_qty":39996,"dynamic_pricing":false,"listed_at":"2026-06-18T20:30:17.770Z"},"share_url":"https://firestarter.network/l/lst_GzCchncg","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 <your Firestarter API key>","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_GzCchncg' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Heavyweight Boxy Long Sleeve T-shirt ~ Black' and a budget_max comfortably above $70.00 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."]}}