Handoff Check

Evidence for the workflow you were promised.

Independent browser evidence for one agreed acceptance workflow before you approve delivery or release payment.

The exact workflow, expected result, environment, and untested boundaries are locked before execution. A real browser then submits a unique test marker, checks independent sessions, waits a declared delay, and produces individually hashed evidence.

"I paid for this app. How do I know the workflow I need is really saving my data?"

Download for Windows - free to runSee servicesSee a sample report

Runs locally. Public HTTP and HTTPS targets only; private, internal, loopback, and credential-bearing URLs are refused.

What the self-serve check proves

  1. Lock the approved workflow definition and its SHA-256 before execution.
  2. Load the public application in desktop and mobile browser viewports.
  3. Run one unauthenticated fill-click-observe workflow that you declare.
  4. Create a unique test marker and observe it in a fresh browser session.
  5. Repeat the immediate observation to detect inconsistent results.
  6. Wait a declared delay and observe the same marker from another fresh session.
  7. Record expected versus observed and a PASSED, FAILED, or INCONCLUSIVE status for every step.
  8. Produce a downloadable ZIP with evidence IDs, individual file hashes, a manifest hash, and a final package hash.
Important: a delayed recheck does not prove the target server restarted or redeployed. Login, MFA, payments, uploads, arbitrary multi-step workflows, and automatic cleanup are not supported by the self-serve form.

Assisted services

Critical Workflow Check
$49
One versioned public workflow, assisted setup, expected-versus-observed steps, delayed recheck, and a hashed evidence package.

Start intake - $49

Delivery Acceptance Review
$199
Requirements mapping, immutable scope, deeper evidence review, explicit untested boundaries, and a dispute-ready downloadable package.

Start intake - $199

Custom Acceptance Audit
From $499
Authenticated or multi-step work, cleanup planning, manual review, and one retest. Restart evidence is offered only when a working deployment or restart hook can be scoped. Scope is agreed before payment.

Request a scope through Endstorm before purchasing.

The tool itself is free. Paid services begin with a short intake, then continue to the existing Stripe checkout. Payment is confirmed only by Stripe's signed webhook and never starts an automatic test.

How to read the result

Passed means the declared workflow met the recorded observations.

Failed means the declared workflow produced evidence of a defect.

Inconclusive means the tool could not make a reliable determination.

Not tested means exactly that. It is never silently treated as passing.

Download

Windows only. Unzip the package and run Handoff Check.exe. First launch may download the pinned Chromium browser engine.

Download for Windows (.zip)

Reports and delayed-job state are stored locally. Every package records file and package SHA-256 hashes. Hashes detect alteration but are not a third-party digital signature.