Use GitHub as the Source of Truth for GitBook Documentation

The problem: docs edited in two places

Many teams treat GitBook as the authoring tool and GitHub as a backup, or vice versa. When a writer edits a page directly in GitBook while another contributor updates the same Markdown file in GitHub, the next sync can silently overwrite work. Documentation can also drift from the code it describes because there is no enforced review step before changes appear on the published site.

The useful takeaway is to reverse the dependency: make GitHub the source of truth, require a pull request for every docs change, and let GitBook publish only what has been merged and synced.

How the sync direction works

GitBook can connect a space to a GitHub repository and pull Markdown from a chosen branch and folder. A sync copies repository files into GitBook so they render as pages. By default this is a one-way pull: GitBook reads GitHub, not the other way around. Edits made inside GitBook may not push back to GitHub unless write-back is enabled, and even then behavior depends on your workspace plan.

This means direct edits in the GitBook editor are temporary if GitHub is the source of truth. The next scheduled or manual sync can replace them with the repository version.

Set up a review-then-publish flow

Use branch protection on the docs branch so changes require an approved pull request. Then connect GitBook to that branch and folder.

Worked example: connect a repository and sync a new page

1. In GitHub, create or identify the repository that will hold docs, for example example-org/docs-site, and choose a branch such as main and a folder such as /docs.
2. Locally, clone the repository. You need write access to the branch.

git clone https://github.com/example-org/docs-site.git
cd docs-site
git checkout -b docs/update-api-reference

3. Add a Markdown page in the docs folder.

# API reference

This page describes the public endpoints.

git add docs/api-reference.md
git commit -m "docs: add API reference page"
git push origin docs/update-api-reference

Run these commands in your local terminal. The push requires write permission to the repository; a force push on the protected docs branch will be rejected.

4. Open a pull request against main, request review, and merge after approval.
5. In GitBook, open the space, go to Settings > Sync, connect GitHub, and select the repository, branch, and docs folder.
6. Trigger a manual sync or wait for the scheduled sync. Check Sync history for errors and confirm api-reference.md appears in the space navigation.

Verify the result

• Open the published GitBook site and confirm the new page is visible.
• Check the sync status in GitBook Settings > Sync for the last successful sync time.
• Confirm your workspace plan includes Git sync; limits on synced spaces and frequency are plan-dependent.

Trade-offs and limitations

• One-way by default. GitBook pulls from GitHub; it does not automatically push editor changes back. If write-back is available on your plan, test it in a non-production space before relying on it.
• Sync can pause silently. Revoked repository access or a plan change may stop syncs without an obvious alert, leaving published content stale.
• File structure matters. GitBook renders Markdown and supports front matter for page metadata, but files must follow the expected folder and naming structure for predictable navigation.
• Legacy CLI is different. The old open-source GitBook CLI is not the current GitBook SaaS; self-hosted instructions do not apply here.

If a bad change is merged and synced, revert the commit on GitHub and trigger another sync so GitBook pulls the corrected version. Disconnecting and reconnecting the repository in GitBook settings is a more disruptive reset and should only be done if sync errors persist.

Actionable closing

Pick one documentation space, connect it to a GitHub branch, enable branch protection, and make a test change through a pull request. Verify the page appears after sync before moving the rest of your docs to the same flow. Check your current workspace plan and sync settings today so a paused sync does not surprise you later.