> ## Documentation Index
> Fetch the complete documentation index at: https://docs.branchpilot.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Versions and test cases

> Drafts, publishing, rollback, and the test cases that keep a decision honest.

## Versions

Editing a decision never changes what the endpoint serves. Saving writes a **draft**; **Publish** makes it the **live** version and archives the previous one. Every version is immutable once published.

* The endpoint always serves the live version.
* Pass `options.version` to call a specific version, live or not — useful to compare a draft with production from your own tooling.
* **Make live again** on an archived version rolls back in one click.

Behavior settings (threshold, uncertainty policy, engine, PII detection, timeout) live on the decision, not on the version, and apply immediately.

## Test cases

A test case is an input and an expected result: an expected **choice** for route decisions, a **score range** for score decisions, the expected **labels** for classify decisions. Templates ship with a few; add yours from the **Tests** tab, or from any run in the history with **Add as test case**.

**Run all** replays every case against the draft (or the live version if there is no draft) and shows a summary: cases passed, average confidence. Run it before publishing; run it again after rewriting a description.

<Note>
  Test runs count toward your quota and appear in the history tagged as playground runs.
</Note>