Send to Instacart or Walmart | AI for Real Life

Cowork loads the cart. You handle checkout.

You have the grocery list ready in flat-text format from the last lesson. This is where Cowork actually drives the grocery app — opening Instacart (or Walmart, or whichever app you use), searching for each item, picking matches, adding them to a cart. You can watch over its shoulder the first couple of times to intervene if something looks off, and handle the actual checkout yourself.

What Cowork can and can't do here

Can: open the grocery app in your browser, search for items, pick reasonable matches, add to cart, pause to ask when it's unsure.
Won't (by default): check out, enter payment info, place the actual order. That's your move so you can review the cart first.
Needs your eye on: brand choices (sometimes it picks store brand when you wanted name brand or vice versa), produce sizing, anything where "1 bag" vs "2 bags" vs "small bag vs. large" matters.

First time? Ask Cowork what it needs.

For Cowork to drive a grocery app in your browser, it uses Anthropic's Claude in Chrome extension. If that's not set up yet, this is the moment to use the push-back pattern from earlier in the course — tell Cowork what you're trying to do and let it walk you through whatever needs to be in place first.

One way to ask:

Sample — first-time setup

I want you to load a grocery cart for me on Instacart (or Walmart, or [your app]). Tell me what needs to be set up on my end before you can do that — extensions, sign-ins, anything else. Walk me through it.

Cowork tells you what's needed. Typically it'll involve installing the Claude in Chrome extension and signing into it with the same Claude account, plus making sure you're signed into your grocery app in Chrome. Once Cowork confirms the setup is ready, the cart-loading workflow runs every time without re-setup.

Stores work differently.

Instacart, Walmart pickup, Kroger, Shipt, your regional grocery app — they all have their own quirks. Cowork's general pattern works on most of them, but expect a little trial-and-error the first time. Once you've done a successful cart on a specific app, the next one is faster.

Tell Cowork to load the cart.

Pull up your flat-text grocery list from the last lesson. Open a chat in Family Manager and tell Cowork what you want it to do.

Sample — load the cart

Here's this week's grocery list (pasted below). Open Instacart in Chrome, pick [your local store], and start loading the cart with these items. For each one, pick the closest match to what I asked for — match the size and quantity I specified, default to the cheapest reasonable option unless the brand matters (in which case prefer the store brand). If you can't find a clear match or you're unsure, pause and ask me before adding anything weird. Don't check out — just build the cart and tell me when it's ready for me to review. [paste your flat-text list]

Cowork starts working. Switch to your Chrome window and watch — it's faster than scrolling Instagram and a little weirdly satisfying. Cowork will type into the search box, click results, and add items to cart, one at a time. When it hits something it's unsure about, it'll pause and ask you ("Is this the right size?" or "Store brand or name brand?"). Answer; it continues.

When to step in.

Wrong-size produce. The list said "2 lbs gala apples" but Cowork picked a 3-lb bag. Tell it to swap.
Out of stock. Item not available. Tell Cowork which substitute is okay or to skip.
Brand mismatch. You wanted Trader Joe's-style something and Cowork picked a generic. Tell it the brand you prefer and Cowork remembers for next time.
Wrong store. Cowork defaulted to the closest store but you prefer a different one. Tell it which one.

Review and check out.

Cowork tells you the cart is ready. Switch to Chrome, scan the cart, fix anything that's off, then check out yourself — payment and delivery/pickup details are intentionally your move so Cowork never spends money without your eyes on it.

Quick review pattern

Scroll the cart once. Does the total feel right? If it's wildly off from a normal week, something's wrong — too many items, wrong sizes.
Skim the substitutions list (most apps show this). Anything weird — Cowork added pickles instead of cucumbers because of a search miss — fix here.
Set the pickup or delivery time you want.
Check out.

Make it faster next time.

After your first successful Cowork-driven cart, you'll notice the patterns — which store, which brand defaults, sizing preferences. Tell Cowork to update its meal-planning rules (or your Custom Instructions) with the defaults so next week's cart loads without you having to specify: "For Instacart carts, default to Kroger as the store, prefer Kroger store brand over name brand when available, and always pick organic for produce when there's a reasonable price difference." Now next week's cart matches your preferences without you saying so.

Next: Recipe Rescues.

Last lesson of the meal module. The plan, the list, and the cart all work great when the week goes the way you planned it. The rescue prompts are for the times when it doesn't — substitutions on the fly, the 5:15 panic, the freezer plan, the kid who suddenly won't eat anything you bought.

Continue to Recipe Rescues →