Search Amazon's catalog by keywords (plus optional title/actor/author/brand/browse-node filters). Returns up to 10 items per page; paginate via itemPage: 2..10 (100 items max). totalResultCount = results that exist, not results accessible. Prices are in the marketplace's currency.

PRESENTATION GUIDANCE (important): default to format: 'markdown' or format: 'json'. After the tool returns, DO NOT paste the raw output into the chat. Instead, summarise the results conversationally — e.g. "I found 5 coffee grinders. The standouts are: • Baratza Encore ($179, highly rated burr grinder) • OXO Brew ($99, solid budget pick) …" — then END your reply by asking the user whether they'd like an embeddable HTML card/grid for their blog. Only call the tool with format: 'html-card' or format: 'html-grid' when the user has explicitly asked for a preview, card, widget, embed, or paste-ready HTML. Never default to HTML output.

Look up 1–10 ASINs on Amazon. IMPORTANT: the returned items array is NOT guaranteed to be in the same order as the input asins array — always match items to inputs by the asin field, not by index. Invalid or inaccessible ASINs appear in a separate errors array rather than in items — check both.

PRESENTATION GUIDANCE (important): default to format: 'markdown' or format: 'json'. After the tool returns, summarise conversationally (e.g. "Here's what I found for those 3 ASINs: • Echo Show 5 ($79.99) • Kindle Paperwhite ($139.99) …") — DO NOT paste the raw tool output. Then ASK the user whether they'd like an embeddable HTML card/grid before calling the tool again with an HTML format. Only use format: 'html-card' or format: 'html-grid' when the user has explicitly asked for a preview, card, widget, embed, or paste-ready HTML.

List colour/size/style variations of a parent ASIN. Max 10 variations per call; paginate via variationPage (1–10). Pass the parent ASIN of a product that has variants — non-variant products return an empty result.

PRESENTATION GUIDANCE (important): default to format: 'markdown' or format: 'json'. Summarise the variations conversationally (e.g. "The Echo Show 5 comes in 3 colours: • Charcoal ($79.99) • Glacier White ($79.99) • Deep Sea Blue ($84.99)") — DO NOT paste the raw tool output. Then ASK the user whether they'd like an embeddable HTML grid of the variations for their blog. Only use format: 'html-card' or format: 'html-grid' when the user has explicitly asked for a preview, card, widget, embed, or paste-ready HTML.

Returns browse-node metadata (category tree) for up to 10 IDs — ancestor chain and direct children for each node. Use the browseNodeInfo.websiteSalesRank resource to find top-selling categories. Supports markdown and json output; HTML product-card formats don't apply here.

Re-render Amazon items you already have (from a previous search_items, get_items, or get_variations call) without hitting the API again. Pass the exact structuredContent you received back as response, or pass items directly as an array. This tool IS for producing HTML embeds — the user has by this point explicitly asked for a card/grid/preview. Use it specifically when iterating on customStyles ("make the border hotpink", "dark mode", "bigger price") — it avoids rate-limit pressure and is much faster than re-querying Amazon.