Marketplace Listing Compliance Pack

The agent loads listing-preflight, saves the listing as a CSV and runs the linter (source lines trimmed here; each finding prints its help page and check date):

$ node listing-lint.mjs candle.csv --platform amazon
Row 1 FAIL  Soy Candle Lavender Candle Aromatherapy Candle Gift for Women - Eco-Fr
  FAIL amazon-title-length: Title is 103 characters; Amazon's limit is 75 including spaces. Move detail to Item highlights (up to 125 characters).
  FAIL amazon-title-banned-char: Title uses !, which Amazon does not allow in titles. Brand names with these characters go in the Brand field only.
  FAIL amazon-title-repeated-word: Word used more than twice: "candle" x3. Amazon allows each word at most twice; only prepositions, articles and conjunctions are exempt, and brand names count.
  FAIL amazon-title-promo: Title contains a promotional phrase ("Free Shipping"). Amazon does not allow promotional phrases in titles.
  WARN claim-disease: "Relieves anxiety": Claims to cure, treat, prevent or relieve a disease or condition. [...]
  FAIL claim-generic-green: "Eco-Friendly": Amazon lists "eco-friendly", "environmentally friendly" and "ecologically friendly" as prohibited claims in bullet points. [...]
  WARN claim-generic-green-eu: "Eco-Friendly": Generic environmental claim offered to EU buyers. Banned from 2026-09-27 unless [...]
  WARN claim-biodegradable-compostable: "Non-Toxic": Specific environmental claim that needs qualification and proof [...]
  FAIL claim-guarantee: "Money-back": Amazon prohibits guarantee information in bullet points and promotional guarantees in titles. [...]
  FAIL claim-bamboo-soy: "Made from soy": Amazon lists "made from bamboo", "contains bamboo", "made from soy" and "contains soy" as prohibited claims in bullet points.
  FAIL gpsr-manufacturer-address: No manufacturer postal address.
  FAIL gpsr-manufacturer-electronic: No manufacturer electronic address (email or contact web page).
  FAIL gpsr-responsible-person: Manufacturer is outside the EU and the EU responsible person's name is missing.
  [...postal and electronic address of the responsible person also missing...]
  FAIL gpsr-picture: No product picture. EU offers must identify the product with a picture, its type and any other identifier.
  WARN gpsr-identifier: No product identifier (gtin, mpn, model or sku). [...]
  FAIL gpsr-safety: No warning or safety information and no safety attestation. [...]
1 listing(s), 1 FAIL, 0 PASS. Rules checked 2026-10-14.

The agent tells the seller, in plain words: the title is written for the old 200-character limit; "relieves anxiety and insomnia" is a health claim that would make a candle a drug in FDA terms and has to go; "eco-friendly", "money-back guarantee" and "made from soy" are on Amazon's prohibited bullet list; "non-toxic" needs proof; and Amazon Germany will not create the listing until it has the manufacturer's full contact details, an EU responsible person (the maker is in the US) and the candle safety warnings. It asks for the contact details and the label warnings, then rewrites only the failing fields:

sku,title,brand,item_highlights,bullet_point1,bullet_point2,bullet_point3,image1,ships_to_eu,manufacturer_name,manufacturer_address,manufacturer_email,manufacturer_country,rp_name,rp_address,rp_email,safety_info
HW-LAV-8,"Hearth & Wick Lavender Scented Candle, 8 oz Tin, 40 Hour Burn","Hearth & Wick","Soy wax blend, cotton wick, gift for women","Lavender scent: Essential oil blend with a light floral finish","Long burn: About 40 hours when trimmed to 6 mm","Reusable tin: Lid keeps dust off between uses",<image-url>,yes,Hearth & Wick LLC,<postal address>,<email>,US,<EU responsible person>,<EU postal address>,<EU email>,"Never leave a burning candle unattended. Keep away from children, pets and anything that can catch fire."

$ node listing-lint.mjs candle-fixed.csv --platform amazon
Row 1 PASS  Hearth & Wick Lavender Scented Candle, 8 oz Tin, 40 Hour Burn

1 listing(s), 0 FAIL, 1 PASS. Rules checked 2026-10-14.

The new title is 61 characters; "gift for women" and the wax moved to Item highlights. Both linter runs above are real output from the pack. Last, the agent reminds the seller to enter the manufacturer and responsible person in Account Health, Regulatory Compliance, and to add the warnings as a Safety document link in German for the Amazon.de store, as eu-gpsr-listings describes.