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Search the Datanest catalogue of digital technical products. Accepts natural-language intent queries (e.g. "add authentication to my SaaS", "reduce my AWS bill", "prepare for a system design interview") — stopwords and phrasing are handled, and synonyms are expanded. Returns concise product cards ranked by relevance, with stable canonical URLs. If a query matches little, the result includes suggestions/did_you_mean/available_domains so you can refine. Read-only and public. By default only agent-purchasable products are returned; set include_unsellable=true to also surface unaudited/deprecated items (clearly flagged, not buyable).

Return the full factual detail for one product: exact title, price/currency, short + detailed description, included files, prerequisites, supported technologies/versions, install time, license, latest version, last verified date, verification status, compatibility notes, preview URL, product page URL, and stable product_id/SKU. Read-only and public.

Compare 2–4 products factually, using only stored metadata (price, license, versions, prerequisites, files, verification status, etc.). Never fabricates differences or suitability claims. Read-only and public.

Return SAFE public previews only: documentation excerpts, a file-name tree, screenshot/demo links, and sample snippets intended for public display. Never returns the purchased ZIP, private storage URLs, secrets, whole paid source files, or signed download URLs. Read-only and public.

SIDE-EFFECTING: creates a short-lived Stripe Checkout session/link for ONE product (quantity fixed to 1) and returns only the hosted checkout URL, product summary, exact price, and expiry. The price and Stripe price id are resolved server-side from trusted catalogue data — client-supplied price/amount/currency/name/price-id are ignored/rejected. The buyer must explicitly authorize payment in Stripe Checkout; NO card is charged autonomously. Products that are unaudited/deprecated/not agent-sellable are rejected.

Poll the status of a checkout session created by create_checkout_link. Returns a coarse status (paid | open | expired | unknown) and the recommended next step, with NO buyer PII. When status is "paid", call get_purchase_access with the same session_id to obtain the download link.

AUTHENTICATED: for a buyer who already completed a purchase, returns a short-lived (~15 min), single-purpose signed download link for THEIR order only. Ownership is proven by an unguessable credential issued at fulfilment — the Stripe session_id or the download token. Reuses the existing entitlement + signed-link service; each call consumes one of the limited downloads. Cannot list or access other purchasers' orders.