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probanda

Your QA bot. In your workflow.

Give Probanda a goal. Its AI plans the checks, explores your app, and reproduces issues before bringing back the evidence.

Coming soon.

Guest checkout

Staging
Example run

Goal → plan → exploration

You

Check guest checkout on staging. Try edge cases. Stop before payment.

Probanda

I’ll check a one-item cart, an empty cart, and removing then re-adding the same item. I’ll repeat any failure in a fresh session.

  1. One-item cart → checkoutChecked
  2. Empty cart → checkout unavailableChecked
  3. Remove, re-add → try checkoutBlocked

Repeated in a fresh session. Same item, same blocked checkout.

Probanda

Guest checkout opened with one item. After removing and re-adding it, checkout stayed disabled. The same steps reproduced the blockage in a fresh session.

Steps + browser evidence attached

One reproduced finding · payment not tested.

staging.example/cartExample browser
One finding confirmeda13f9c2 · stops before payment
Example QA reportReproduced

Checkout stays disabled after re-adding an item.

Reproduced in a fresh session on staging. Payment and order completion were not tested.

Inspect example evidence
Expected
Guest checkout opens with one item in the cart.
Observed
The item and $24 subtotal return, but Continue to checkout remains disabled.
  1. Open a cart containing one Everyday tote.
  2. Remove it.
  3. Add the same item again.
  4. Observe checkout remains disabled.
<button disabled>Continue to checkout</button>

Staging · a13f9c2 · 2 attempts, same result. Guest checkout was reached with one item; the empty-cart guard was checked. Other paths were not tested.

Illustrative demo · guest checkout

A plan for the paths that matter.

Describe what should work. Probanda plans the checks, then explores the normal path and the edges around it.

Set the boundaries

Choose the environment, expected behavior, and where to stop. When scope or permissions are unclear, the intended handoff asks before proceeding.

ProbandaExample run
Goal

Verify guest checkout.
Stop before payment.

everyday.example/checkoutStaging
everydayBag 1
Guest checkoutContact information
Email address
Shipping address
Everyday tote · 1 item $24.00

Guest checkout page reached.

everyday.example/cartStaging
everydayBag 0
Your bag is empty.Add something you’ll use every day.Continue shopping

An empty cart cannot proceed.

everyday.example/cartStaging
everydayBag 1
Everyday toteNatural / One sizeQuantity 1
$24.00
Subtotal$24.00
Continue to checkout

The item returns. Checkout stays disabled.

Staging · a13f9c2Three paths. One goal.

Evidence you can inspect.

See what happened, how to reproduce it, and what was confirmed in a fresh session.

ProbandaExample finding
Reproduced

Checkout stays disabled after re-adding an item.

Staging
a13f9c2
everyday.example/cartStaging
everydayBag 1
Everyday toteNatural / One sizeQuantity 1
$24.00
Subtotal$24.00
Continue to checkout
The item and subtotal returned. The action didn’t.
Fresh session · same build and data
  1. Open a cart with one Everyday tote.
  2. Remove the last item.
  3. Add the same item again.
  4. Observe that checkout stays disabled.

Repeated independently. Same result.

Inspected control
<button
  type="button"
  disabled
>
  Continue to checkout
</button>

The disabled attribute is still present after the item returns.

Expected
Guest checkout opens with one item in the cart.
Observed
The tote and $24 subtotal return, but Continue to checkout stays disabled.
Confirmed in a fresh session

Same build. Same tote. Same failing path.

Payment and order completion were not tested.

What the evidence can tell you

This example shows the observed failure and its reproduction, not an invented root cause. A result stays tied to its environment, revision, and tested scope.

Same path, next revisionExample

Remove the last item re-add it open guest checkout

Original finding a13f9c2Checkout blocked
Continue to checkout

The item returned.
The button stayed disabled.

Retest b27e6d4Guest checkout reached
everyday.example/checkoutContact information

Original remove/re-add path checked.
Stopped before payment.

The fix gets tested, too.

Run the original failing path against the next revision. Compare the observed result, with payment still out of scope.

Keep the result in context

Reaching guest checkout is the observed result here. It does not establish that payment, order completion, or unrelated paths passed.

The result returns to the work.

Planned connections · Example workflow

#release-checksGuest checkout
You

@Probanda Make sure guest checkout works on staging a13f9c2. Try removing the last item and adding it back. Stop before payment.

Everyday toteNatural · One size · $24

2 replies in this thread

ProbandaThread

Checkout stays disabled.

Remove the last Everyday tote, then re-add it. The cart has one item, but checkout stays disabled. Reproduced in a fresh session.

Staging a13f9c2

Retest on b27e6d4

The same remove/re-add path reaches Guest checkout. Stopped before payment.

Fix guest checkout after an empty cartPull request
ReviewApproved
StagingReady · a13f9c2

Check the linked guest-checkout fix. Remove the last item, re-add it, then try checkout. Stop before payment.

Everyday toteNatural · One size · $24
ProbandaComment

Checkout stays disabled.

Remove the last Everyday tote, then re-add it. The cart has one item, but checkout stays disabled. Reproduced in a fresh session.

Staging a13f9c2

Retest on b27e6d4

The same remove/re-add path reaches Guest checkout. Stopped before payment.

Restore checkout after the cart is emptiedIssue

Acceptance criteria

  • Remove the last Everyday tote from the cart.
  • Re-add Natural · One size · $24.
  • Reach Guest checkout; stop before payment.
Linked fixRestore checkout after cart resetStaging b27e6d4
ProbandaActivity

Checkout stays disabled.

Remove the last Everyday tote, then re-add it. The cart has one item, but checkout stays disabled. Reproduced in a fresh session.

Staging a13f9c2

Retest on b27e6d4

The same remove/re-add path reaches Guest checkout. Stopped before payment.

Check guest checkout on stagingEmail thread
YouTo: Probanda

Can you check guest checkout on a13f9c2? Try a one-item cart, then remove the last item and add it again. Stop before payment.

Everyday toteNatural · One size · $24
ProbandaReply to you

Checkout stays disabled.

Remove the last Everyday tote, then re-add it. The cart has one item, but checkout stays disabled. Reproduced in a fresh session.

Staging a13f9c2

Retest on b27e6d4

The same remove/re-add path reaches Guest checkout. Stopped before payment.

View example evidence
Control the handoff

Planned rules keep checks within the agreed scope. A linked fix waits for an approved review and a ready test environment. Results do not automatically merge a PR or close an issue.

Slack, email, GitHub and Linear connections are planned.

Questions, answered.

What is Probanda?

Probanda is an AI QA bot we’re building to turn testing goals into plans, explore normal and boundary paths, and independently reproduce suspected issues. It brings back evidence and follows the next fix into a retest.

Do I need to write the test steps?

The goal is to start with what should work, the target environment, and your boundaries. Probanda plans the checks and asks when expected behavior is unclear. You can also supply acceptance criteria or an existing test plan.

What does a result tell me?

What was explored, what happened, and which issues were reproduced, with supporting steps and evidence. Blocked checks and untested paths stay explicit. A completed run does not mean the entire product is bug-free.

Where does Probanda fit into our work?

Slack, email, GitHub and Linear are planned entry points. Assign a goal in a conversation or hand off a reviewed change with a ready test environment. Findings return to the same context; merge and release decisions stay with your team.

When can I use Probanda?

Probanda is coming soon. The examples on this page show the experience we’re building. Slack, email, GitHub and Linear connections are planned.

Meet your next QA teammate.

Join the waitlist for early access to Probanda.

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