SparkBench is in development. Nothing is released, listed in a store, priced or installable. This page is updated by hand when the evidence changes; it is not a live service monitor.

Shown in bounded tests

Each item below was exercised with synthetic workbooks and independently reviewed. “Bounded” means the specific story was tested, not every workbook.

  • Jobs written as source run inside Excel on Windows and in Excel on the web, including cancellation, forced termination and clean recovery.
  • A stock-and-orders story pauses before the first order that cannot be filled, explains the state, accepts an extra delivery as a named alternative, and compares baseline with alternative to exact expected figures.
  • Editing a cell while a job is paused is detected. The job keeps its earlier snapshot or explicitly re-reads, and reports which. Text where a number is expected, and formulas where a value is expected, are refused with a clear message and recovery.
  • A stand-in for the AI, which writes nothing on its own, is used to test that a job built on stale inputs is refused.
  • The rule that only the approved task text, structure and shareable material cross to the remote side is written down as a requirement and checked in synthetic tests of the capture and reporting paths.

Not yet

  • A live AI connection in the product, and the decision about which AI provider and whose account.
  • General workbook workflows beyond the tested stories: choosing arbitrary ranges, keeping results between sessions, writing results back in the general case.
  • Evidence on Excel for Mac. Mac is a target; actual checks need hardware that has not been available.
  • Full coverage of the programming language target. The target is the complete R7RS-small Scheme language with named exclusions for things that do not belong in an Excel add-in, such as file access; the current runtime is a documented partial profile.
  • An audited privacy guarantee, security or accessibility certification, or any Microsoft certification. None is claimed.
  • A store listing, prices, a release date, installation instructions, or an account to create.

This website

What it is

A first-cut development site. It explains the product being built and hosts the support, privacy and terms pages that will apply when there is a product.

Hosting

Microsoft Azure Static Web Apps, Free plan, East US 2, with global static content distribution. Static pages only: no backend, no accounts, no forms, no analytics. The add-in, when it exists, will be served from a separate origin.

Operator identity and contact

The operator's legal identity and the monitored support and privacy contact addresses have not yet been published on this preview. They will be added before the policies here are relied on for any product or store submission. See the support page for the current position.

Language

English first. Other languages are not yet decided.