---
title: "restore_test_version"
description: "Restore a test to a previous version."
sidebarTitle: "restore_test_version"
lastUpdated: "2026-09-23"
---

> **For AI agents:** the complete documentation index is at [llms.txt](/llms.txt). Append `.md` to any page URL for its markdown version.

{/* GENERATED FILE: do not edit by hand. Regenerate with: node scripts/generate.mjs */}

Restore a test to a previous version.

<Warning>
  **Destructive · Writes data · Idempotent · Calls external systems.** This tool can modify or delete data. Review the arguments before letting an agent call it.
</Warning>

## Parameters

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `history_id` | number | Yes | History version ID to restore (from list_test_versions) |

## Example arguments

Illustrative arguments an agent supplies when calling this tool:

```json
{
  "history_id": 0
}
```

## Description

```text
DESTRUCTIVE — overwrites current test definition. Use list_test_versions to find the history_id. Counts against the per-test edit budget.
```

## Related

- [`list_test_versions`](/mcp/tools/test-editing/list_test_versions)

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