# Commit messages & Autolink

By default, when exporting content from GitBook to the Git repository, GitBook will generate a commit message based on the merged change request:

```
GITBOOK-14: Improve documentation about users management
```

## Autolink `GITBOOK-<num>` in GitHub and GitLab

If you want to automatically resolve your GitBook change request IDs (e.g. *GITBOOK-123*) in commits to links, you can enable this using GitHub’s *Autolink references* feature. See instructions on [GitHub](https://help.github.com/en/github/administering-a-repository/configuring-autolinks-to-reference-external-resources).

Use the following URL format, where `spaceId` corresponds to your space’s URL:

`<https://app.gitbook.com/s/{spaceId}/~/changes/<num>/`

<div data-full-width="false"><figure><img src="/files/UuU87okJqvCnc8Tjdovw" alt="A GitBook screenshot showing autolink setup"><figcaption><p>Autolink setup.</p></figcaption></figure></div>

## Customize the commit message template

When using GitBook with a [monorepo](/docs/getting-started/git-sync/monorepos.md), or when you have specific guidelines for commit messages; you might want to customize the message used by GitBook when pushing a commit to Git.

The template can contain the following placeholders:

* `{change_request_number}` unique numeric ID for the change request
* `{change_request_subject}` the subject of the change request when merged, or `No subject` if none has been provided.

The default template is:

```
GITBOOK-{change_request_number}: {change_request_subject}
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://gitbook.com/docs/getting-started/git-sync/commits.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.