To check who authored a commit in GitHub, open any repository, click the "Commits" link, and click on any commit to see the author's name, avatar, and timestamp. For line-by-line authorship, use the Blame view on any file. Commits from AI tools like Lovable or Cursor appear with bot attribution so you always know what was human-written versus AI-generated.
Understanding Commit Authorship on GitHub
Every time someone saves a change to a GitHub repository, that change is recorded as a commit. Each commit stores not just the code changes but also who made them, when, and why. This authorship information is permanent and cannot be faked without leaving a trace. For non-technical founders working with developers or AI tools, checking commit authorship helps you answer critical questions: Who wrote this code? When was it last changed? Did my developer actually make the changes they said they did? GitHub provides two main ways to check authorship — the commit history (which shows a timeline of all changes) and the Blame view (which shows who last edited each individual line of a file). When you use AI app builders like Lovable, V0, or Replit, their commits appear with special bot attribution, making it easy to distinguish AI-generated code from human edits.
Prerequisites
- A GitHub account (free plan works)
- Access to at least one repository with commits
- A modern web browser
Step-by-step guide
Open the commit history for a repository
Open the commit history for a repository
Navigate to the repository you want to inspect on github.com. On the main repository page, look just above the file list — you'll see a small clock icon followed by a number and the word "Commits" (for example, "142 Commits"). Click this link. GitHub will display a reverse-chronological list of every commit ever made to the repository. Each entry shows the commit message, the author's avatar and name, and the relative timestamp (like "2 days ago"). Scroll down to browse older commits or use the search bar at the top to filter by keyword.
Expected result: You see a scrollable list of commits with author avatars, names, commit messages, and dates.
Click a commit to view full authorship details
Click a commit to view full authorship details
Click on any commit message in the list. GitHub opens a detailed view showing the full commit. At the top, you'll see the author's name (linked to their GitHub profile), their email address, and the exact date and time of the commit. Below that, you'll see the "diff" — a color-coded view of what was added (green) and removed (red). If the commit has co-authors, they appear below the primary author with a "Co-authored-by" label. This is common when AI tools like Cursor or Lovable make changes alongside a human developer.
Expected result: You see the commit author's name, email, timestamp, and a colored diff showing exactly what changed.
Use the Blame view to see who wrote each line
Use the Blame view to see who wrote each line
Go back to the repository's main page and click on any file you want to inspect. Once the file opens, look for the "Blame" button in the toolbar above the file content (next to "Raw," "Copy," and other options). Click "Blame." GitHub now displays the file with each line annotated on the left side — showing the commit hash, author name, and date for the last change to that specific line. Lines changed in the same commit are grouped together with a single annotation block. This is the most powerful way to see exactly who wrote or last modified each part of a file.
Expected result: Each line of the file shows the last commit author, date, and commit message on the left side.
Identify AI-generated commits and bot attributions
Identify AI-generated commits and bot attributions
When you work with AI tools that connect to GitHub, their commits have distinctive author names. Lovable commits appear from "lovable[bot]," V0 commits appear from a branch prefixed with "v0/," and Replit Agent commits show the Replit username. In the commit history or Blame view, look for these bot names in the author column. You can also check if a commit was made via a GitHub App by looking for a small "bot" badge next to the author's name. This helps you audit your codebase and know exactly which parts were AI-generated versus human-written.
Expected result: You can distinguish between human commits and AI-tool commits by the author name and bot badge.
Check commit authorship in a pull request
Check commit authorship in a pull request
Navigate to the "Pull requests" tab at the top of the repository and open any pull request. Click the "Commits" tab within the PR (between "Conversation" and "Checks"). This shows all commits included in that pull request, each with its author. Click the "Files changed" tab to see a complete diff of every file modified. This combined view lets you verify who contributed what to a particular feature or fix. If your team uses AI tools, you may see a mix of human and bot commits within a single PR.
Expected result: You see a list of commits within the PR and can click into each to verify the author.
Complete working example
1# Commit Authorship Cheat Sheet23## Quick Reference for Non-Technical Founders45### Where to check authorship:67| What you want to know | Where to look |8|------------------------------|----------------------------|9| Who made a specific change | Commits page → click commit|10| Who wrote a specific line | Open file → Blame button |11| Who contributed to a feature | Pull request → Commits tab |12| Was it AI-generated code | Look for [bot] badge |1314### Common AI tool author names:1516- `lovable[bot]` — Lovable AI builder17- `v0-agent` — V0 by Vercel18- `replit` — Replit Agent19- `github-actions[bot]` — GitHub automation2021### What to look for in a commit:2223- Author name and avatar24- Timestamp (date and time)25- Commit message (should describe the change)26- Co-authored-by lines (multiple contributors)27- Green lines = added, Red lines = removedCommon mistakes when checkking Commit Authorship in GitHub
Why it's a problem: Confusing the committer with the author
How to avoid: The author is whoever originally wrote the change. The committer is whoever applied it. In most cases they are the same person, but rebasing or cherry-picking can change the committer. Always check the author field for the original writer.
Why it's a problem: Assuming all commits from a bot are low quality
How to avoid: AI-generated commits from tools like Lovable and V0 are often production-ready. Review the actual code changes rather than dismissing them based on the author name.
Why it's a problem: Not checking the Blame view for inherited code
How to avoid: The commit history shows recent changes, but Blame shows who last touched every line. Use Blame to find the original author of older code sections.
Why it's a problem: Overlooking co-author attributions
How to avoid: Scroll to the bottom of a commit message to see Co-authored-by lines. AI tools and pair programming sessions often include co-author credits.
Best practices
- Check the Blame view before asking a teammate about unfamiliar code — it tells you exactly who to ask
- Use commit authorship to verify that contracted developers actually made the changes they invoiced for
- Look for the bot badge next to author names to quickly identify AI-generated code
- Review the commit timestamp to understand when changes were made relative to reported issues
- Click through to the author's GitHub profile to verify they are a real team member
- Use pull request commit lists to review all contributions to a feature in one place
- Save time by bookmarking the Commits page of repositories you monitor frequently
Still stuck?
Copy one of these prompts to get a personalized, step-by-step explanation.
I'm a non-technical founder reviewing code on GitHub. Explain how to read a commit diff — what do the green and red lines mean, and how do I check who wrote each section?
Frequently asked questions
Can someone fake commit authorship on GitHub?
Git allows setting any name and email in local configuration, so technically someone could commit under a false identity. However, GitHub shows a 'Verified' badge on commits signed with a GPG or SSH key, which proves the author is who they claim to be. Always look for this badge on critical commits.
What does the 'Verified' badge on a commit mean?
The Verified badge means the commit was cryptographically signed by the author using a GPG or SSH key registered to their GitHub account. This proves the commit genuinely came from that person and was not forged.
How do I see all commits by a specific person?
On the Commits page, click the author's avatar or name to filter the list to only their commits. Alternatively, add '?author=username' to the end of the commits page URL to filter by any GitHub username.
Why does a commit show a different author than I expected?
This usually happens when someone configures their local Git with a different email than their GitHub account, or when AI tools commit on behalf of a user. Check the email address in the commit details — it may not match a GitHub account.
Can RapidDev help me audit commit history for my project?
Yes. RapidDev's engineering team can review your repository's commit history, identify which code was AI-generated versus human-written, and help you understand the quality and completeness of your codebase.
How do commits from Lovable appear in GitHub?
Lovable commits appear with the author name 'lovable[bot]' and include a bot badge. Each commit message describes what the AI changed. You can click into any Lovable commit to see the exact code modifications.
Is there a way to get email notifications when someone commits to my repository?
Yes. Click the 'Watch' dropdown at the top of your repository page and select 'All Activity.' GitHub will email you whenever a new commit is pushed, a pull request is opened, or an issue is created.
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