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sourceSource: suspec/docs/tutorial/04-close.mdModified: 2026-06-24
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This page creates:

  • findings/session-expiry-is-409.md
  • an updated status.md

Start only after review is pass or an owner accepts a waiver.

Save the finding

Create findings/session-expiry-is-409.md.

code
---
type: finding
id: FINDING-session-expiry-is-409
from: REVIEW-checkout-expiry
date: 2026-06-20
related:
  - SPEC-checkout#AC-001
---

# Finding: expired checkout sessions are 409

## What we learned

Expired checkout sessions return `409 SESSION_EXPIRED`, not a 5xx.

## Evidence

- `reviews/checkout-expiry.md`, AC-001
- `npm run test:integration -- expired-session`

## Where it applies

- checkout session expiry

## Where it does not apply

- other checkout validation failures
- non-checkout sessions

## Future guidance

Treat expired checkout sessions as an expected client error.

Check:

  • one claim
  • evidence named
  • applies and does-not-apply sections present
  • related requirement linked

Update the board

In status.md:

  • mark SPEC-checkout as ready or accepted, per your local status model
  • mark TASK-checkout-expiry closed
  • link the task row to reviews/checkout-expiry.md while retained
  • add the finding under pending acceptance if your board tracks that list

Artifact chain

StepArtifact
Pullintake/checkout-expiry.md
Specspecs/checkout/spec.md
Tasktasks/checkout-expiry.md
Runtask ## Run summary
Reviewreviews/checkout-expiry.md
Closefindings/session-expiry-is-409.md, status.md

What you skipped

No inventory or change plan was needed because this is one small feature.

Use brownfield work and change plans for structural work.

Starter kit: Set up a workspace