> For the complete documentation index, see [llms.txt](https://vigil.deadbits.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://vigil.deadbits.ai/overview/use-vigil/configuration/auto-updating-vector-database.md).
# Auto-updating vector database
If enabled, `Vigil` can add submitted prompts back to the vector database for future detection purposes. When `n` number of scanners match on a prompt, that prompt will be indexed in the vector database.
Because each individual scanner is prone to false positives, it is recommended to set the threshold at `3` to require all input scanners (YARA, vector db, transformer) to match before auto-updating is invoked.
This is disabled by default but can be configured in the **`embedding`** section of the **`conf/server.conf`** file.
**Example configuration**
```ini
[embedding]
auto_update = true
update_threshold = 3
```
This configuration would require three different scanners to match against a submitted prompt before that prompt is indexed back in the database.
The following metadata is stored alongside the detected prompt:
```json
{
"uuid": scan uuid,
"source": "auto-update",
"timestamp": timestamp string,
"threshold": update_threshold
}
```
Once enabled, you will see log output similar to the screenshot below when the threshold is met:
Auto-update example log output
---
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