Find a coupon code that works at checkout

Public codes tested in your cart, and the one that gives the lowest total, with its conditions.

  • You start it: When you start it

What it does

The task

Open my cart at store. Search coupon sites, the store's offer pages and its social posts for codes from the last 60 days. Test at most 15 codes in the cart, one at a time, and record the total after each one. Apply the code that gives the lowest total and leave it in the cart. Tell me the code, the saving and its conditions. Do not sign up for anything, and do not pay.

  • It works in any online store and any website, in the workspace you pick, and signs in with passwords from your Cuiar vault.
  • It runs once, when you start it.

What you give it

BlankWhat to giveExample
storeThe online store where your cart is readybrightlinehome.com

What you get back

An example run with the example values above. Your run uses your own data.

Cart at Brightline Home: 214.90 EUR before codes

CodeResultTotal
WINTER1515% off orders over 150 EUR182.67 EUR
FREESHIPfree shipping209.95 EUR
WELCOME10rejected, new customers only214.90 EUR

12 more codes: expired or not valid

Applied: WINTER15, saving 32.23 EUR. It ends on 30 Nov and does not apply to sale items.

Run it in Cuiar

  1. 01

    Open it

    Click Use in Cuiar on this page. The side panel opens with the task in the composer.

  2. 02

    Fill in the blank

    Type store. Tab moves to the next blank.

  3. 03

    Run it

    Run sends it to the agent. Follow each step in the panel, and stop it at any time.

From the terminal

cuiar exec "Open my cart at brightlinehome.com. Search coupon sites, the store's offer pages and its social posts for codes from the last 60 days. Test at most 15 codes in the cart, one at a time, and record the total after each one. Apply the code that gives the lowest total and leave it in the cart. Tell me the code, the saving and its conditions. Do not sign up for anything, and do not pay."

Run it from your AI agent

Claude Code, Codex, Cursor and other MCP clients reach Cuiar at https://mcp.cuiar.com/mcp. Add the server one time, then ask for the task in plain words, or call run_task yourself.

1. Add Cuiar to Claude Code

claude mcp add --transport http cuiar https://mcp.cuiar.com/mcp

2. Ask your agent

Use the Cuiar tool run_task to run my "Find a coupon code that works at checkout" template with store = brightlinehome.com.

Setup for other agents: AI agents.

The tool call

{
  "name": "run_task",
  "arguments": {
    "task": "Open my cart at brightlinehome.com. Search coupon sites, the store's offer pages and its social posts for codes from the last 60 days. Test at most 15 codes in the cart, one at a time, and record the total after each one. Apply the code that gives the lowest total and leave it in the cart. Tell me the code, the saving and its conditions. Do not sign up for anything, and do not pay."
  }
}
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