# Add a code source

A code source is one linked repository on one branch, or one folder of it. Add one, name it and exclude the folders you never want reviewed.

*Where in the portal: Code Sources → Add source*

*Last updated: 2026-10-21*

A code source is a linked repository on the branch you want reviewed: the whole repository or a single folder of it. That branch is the tracked branch, and scans and fixes always work on it. A monorepo can be several code sources, one per folder.

Organization owners and admins add code sources.

1. **Open Code Sources**

   In the portal, open **Code Sources** and choose **Add source**.

2. **Pick a repository**

   Choose one of the repositories you linked on **Connections**.

3. **Choose the branch and folder**

   Pick the branch to review and, optionally, a folder inside the repository. Give the source a display name when the repository name is not clear.

![The Add code source dialog, step 2 of 2, Branch and folder: the repository northwind/payments-api with the branch main selected.](https://kelrova.com/docs/img/getting-started/code-source-add.png)

*The Add code source dialog on its second step: the repository chosen and the main branch selected.*

## Exclude folders

Exclude folders you never want reviewed, such as `vendor/` or test fixtures. Excluded paths belong to the code source, so one list applies to every project that uses the source.

- A source can have up to 50 excluded paths, each a directory prefix of 1 to 200 characters, relative to the repository root.
- A trailing `/` is added for you. A path cannot start with `/`, contain `..`, a backslash or a wildcard.
- Each run takes the list as it stands when the run is created. Editing it later does not change work that is queued or running.

Excluded folders never enter a scan. They still count toward the download limits on [Limits](https://kelrova.com/docs/reference/limits#source-size). Files larger than 8 MiB are skipped automatically; see [Limits](https://kelrova.com/docs/reference/limits#files-and-folders).

## One source per folder

For a monorepo, add the same repository once for each folder you want to treat as its own code source, then group them into projects. [Set up a monorepo as several code sources](https://kelrova.com/docs/guides/monorepo) walks through it.

## Next

[Create a project](https://kelrova.com/docs/getting-started/projects) from one or more code sources.

## Related

- [Create a project](https://kelrova.com/docs/getting-started/projects)
- [Set up a monorepo as several code sources](https://kelrova.com/docs/guides/monorepo)
- [Limits](https://kelrova.com/docs/reference/limits)
- [Where your code goes and what Kelrova keeps](https://kelrova.com/docs/security/data-handling)