amazon-delivery-check

name	amazon-delivery-check
description	Get the delivery facts that exist only inside the user's signed-in Amazon session - same-day and overnight availability, the Prime basket minimum, the order-within cutoff, coupons and Prime-exclusive pricing - plus a check that the Prime membership is still live on the delivery date. Use when the user asks whether something arrives today or tomorrow, whether it beats a deadline, or what it actually costs at checkout. For the standard Prime date, use amazon-listing-check instead; the free route already has it.
allowed-tools	mcp__claude-in-chrome__tabs_context_mcp, mcp__claude-in-chrome__tabs_create_mcp, mcp__claude-in-chrome__navigate, mcp__claude-in-chrome__javascript_tool, mcp__claude-in-chrome__find, mcp__claude-in-chrome__tabs_close_mcp, Bash(python3 *), Read

Amazon delivery check

Come here only for what the free route cannot see

This skill costs a browser session. Spend it deliberately, because the list of session-only facts is shorter than it used to look. Measured 2026-08-19 across eleven ASINs:

Fact	Signed-in session needed?
The standard Prime arrival date	No. It is the second delivery option on the anonymous page, and it matched the signed-in session exactly on 5/5 Amazon-fulfilled ASINs
Same-day / overnight availability	Yes. Anonymous showed FREE Monday, August 24; signed-in showed FREE Overnight 4 AM - 8 AM
The basket minimum	Yes. $25 signed in against $35 anonymous, same ASIN
The order-within cutoff	Yes, on the leading option
Coupons, Prime-exclusive pricing	Yes. Never render anonymously
Anything about a merchant-fulfilled item	No. Four paid-shipping ASINs were identical field for field on both routes
Whether Prime is still in force on the delivery date	Yes, and nothing else can answer it

So: run amazon-listing-check first. Come here when the answer turns on same-day/overnight, on the true checkout total, or on a deadline close enough that the cutoff matters.

The earlier claim that the anonymous route understates arrival by four days was an artefact of reading #deliveryBlockMessage, which stops at the first option. Corrected 2026-08-19; see reference/delivery.md.

Check the membership before quoting a Prime promise

A Prime date assumes a live membership on the day the parcel arrives, and no product page knows that. /gp/primecentral does:

const h = await fetch('/gp/primecentral', {credentials:'include'}).then(r => r.text());
const d = new DOMParser().parseFromString(h, 'text/html');
d.querySelectorAll('script,style,noscript').forEach(n => n.remove());
const clean = s => (s||'').replace(/[=?&]/g,' ').replace(/\s+/g,' ').trim();
JSON.stringify({
  state: clean(d.querySelector('[cel_widget_id^="prime-membership-central-profile"]')?.textContent).slice(0,200),
  plan:  clean(d.querySelector('[cel_widget_id^="plan-change-action-desktop"]')?.textContent).slice(0,300),
}, null, 1)

Anchor on cel_widget_id prefixes, not on class names: Prime Central is built from CSS modules whose class names carry a build hash and will churn. Strip script and style first, or textContent returns the page's inline JavaScript — and the extension blocks the whole result as cookie data.

The account measured on 2026-08-19 read 8 days left in your trial, converting to a paid monthly plan on 2026-08-27 — beyond several delivery estimates being quoted at the time. When the state is a trial or a lapsing membership, say so alongside any date past its end.

Batch the whole shortlist in one call

Do not navigate once per ASIN. From a tab already on any Amazon page, a same-origin fetch carries the session, so one javascript_tool call prices the entire shortlist. Read the delivery attributes, not the sentence:

const asins = ['B0XXXXXXX1','B0XXXXXXX2'];
const slot = {DEXUnifiedCXPDM:'primary', DEXUnifiedCXSDM:'secondary'};
const out = {};
for (const a of asins) {
  const h = await fetch('/dp/' + a, {credentials:'include'}).then(r => r.text());
  const d = new DOMParser().parseFromString(h, 'text/html');
  const seen = new Set(), options = [];
  for (const el of d.querySelectorAll('[data-csa-c-content-id="DEXUnifiedCXPDM"],[data-csa-c-content-id="DEXUnifiedCXSDM"]')) {
    const g = n => el.getAttribute('data-csa-c-' + n) || null;
    const o = {slot: slot[el.getAttribute('data-csa-c-content-id')],
               cost: g('delivery-price'), when: g('delivery-time'),
               : (), : (),
               : ()};
     k = .(o).();
     (seen.(k)) ; seen.(k); options.(o);
  }
  out[a] = {
    :  d.()?..(,),
    : d.()?.?.(),
    : !!(d.() || d.()),
    options,
  };
}
.(out, , )

This is faster than navigating, keeps 400 KB pages out of context, and avoids a real hazard — see below.

Reading a rendered page instead? Then price must come from .priceToPay's text, not its .a-offscreen span, which is blank in the live DOM even though it carries the value in the raw HTML.

Navigation hazard

A plain navigate inside a signed-in Amazon session can land somewhere you did not ask for. In one session a navigate to a /dp/ URL landed on /progress-tracker/package/preship/cancel-items for an unrelated live order — a page whose controls cancel real orders.

If that happens: click nothing, open a fresh tab, and prefer the read-only same-origin fetch above, which cannot wander. Never click a control on a page you did not intend to open.

That page is the Cancel items target for an order — one link from every live order, which is how a navigate reached it. amazon-order-cancel goes there on purpose; this skill never should.

Procedure

1. tabs_context_mcp first. Create a new tab rather than reusing one of the user's, unless they asked otherwise.
2. Navigate once, to any Amazon page.
3. Check the Prime membership state if any date you will quote is more than a few days out.
4. Run the batch script above.
5. Confirm shipTo before quoting anything. It renders truncated, as <Town na...> <ZIP> — so check the ZIP, which is the part that matters and the part that is not cut off. Do not reconstruct the town: Storrs Ma... 06268 is Storrs Mansfield, Connecticut, and the fragment reads like a state abbreviation for a different one.
6. Close the tab when done.

Reading the result

Each option carries its own cost, date and condition. State all three, per option — a date without its condition is not an answer.

Signal	Meaning
when: "Tomorrow, …" / "Overnight 4 AM - 8 AM"	A real promise, this ZIP, this hour
when: "<date> - <date>"	Not a promise. An estimate, typically weeks. With no Prime badge it is the strongest tell of a direct-from-overseas seller
cost: "FREE" + condition set	Free only above that basket total. Not free for a single cheaper item
cost: "$5.85"	A real fee. Add it to the item price before comparing
cost: "fastest"	An upgrade whose fee the listing does not state. Say it is unpriced until checkout
program: "paid_shipping"	The programme, not the outcome — it appears alongside cost: "FREE". Read cost
cutoff set	The promise expires. Quote it with the date, and with the time you read it

An empty option list means the structured block is absent on that listing, not that there is no delivery. Fall back to #deliveryBlockMessage and say so.

If you must read a rendered page instead

Ask find for the delivery date in the main buy box only, not sponsored or related items — without that qualifier it returns an "Overnight" badge belonging to a sponsored product further down the page and presents it as the answer. Do not pull the whole page text for one field.

Related

• reference/delivery.md — the option contract, and the anonymous/signed-in comparison in full
• reference/fetch-routes.md
• amazon-listing-check — cheaper, and enough for the standard Prime date
• amazon-account-import — writes the Prime state to config instead of re-reading it