Picking your first open source project feels a lot like applying to colleges: you want to get in, but you have no idea which ones actually accept students like you. The good news is that the answer is publicly visible. You don’t need to guess, hope, or rely on a project’s reputation when choosing a project that won’t reject you. You just need to know which signals to read. The most reliable ones are maintainer response times, recent merged PRs, and the tone of feedback left on real contributor work. Here’s how to read them like an experienced maintainer would—before you even open a pull request.
Why “Good First Issue” Labels Are Not Enough
It’s tempting to filter GitHub by the good first issue label and assume the project is beginner-friendly. In theory, that label means the maintainers have thought about how to ease new people in. In practice, it can mean anything from “we care about onboarding” to “we haven’t cleaned up our issue tracker in two years.”
A label is a statement of intent, not a guarantee of behavior. A project can have dozens of good first issues and still take three weeks to respond to a pull request. Or it can have zero labeled issues and a maintainer who reviews every contribution within hours. The label tells you about the project’s intentions; the things below tell you about its reality.
Measure Maintainer Response Times Before You Write a Line of Code
Maintainer response time is the single strongest predictor of whether your first PR will be merged. If a maintainer takes six weeks to reply to a small typo fix, imagine how they’ll treat a new contributor who is learning the codebase for the first time.
You don’t need a special tool to measure this. Go to the project’s pull request tab, filter by merged, and sort by recently closed. Look at the timestamps:
- How long does it take between the PR being opened and the first comment from a maintainer?
- How many days pass between the first review and the actual merge?
- Are there long gaps where the PR author had to nudge someone with a “friendly bump” comment?
Projects that regularly merge PRs within a few days are generally more attentive. Projects where the only activity happens in bursts—followed by weeks of silence—will likely test your patience. For a first contribution, you want a project that responds quickly, even if the response is a request for changes.
Recent Merged PRs Tell the Real Story
The most beginner-friendly open source projects tend to have regular, recent merge activity from a variety of contributors. A high volume of merged PRs shows that the maintainers are actively processing contributions, not just collecting them.
But don’t just look at the count. Look at who is merging and whom they are merging from. If you see the same three maintainers merging each other’s code over and over, the project might feel closed off to outsiders even if it’s technically active. On the other hand, if you see a pattern of merge commits from usernames you don’t recognize, that’s a sign that the project has an established history of welcoming newcomers.
Pay attention to the size of recently merged PRs as well. Small, focused PRs—a few dozen lines at most—are easier for a first-timer to replicate than multi-file refactoring efforts. If a project’s merged PR history shows a culture of small, incremental changes, that culture will welcome you too.
Read the Conversation History on Closed PRs
Open pull requests can linger for months for all sorts of reasons. Closed PRs, especially merged ones, give you a complete picture of the contributor experience. You can read exactly how maintainers respond when someone attempts a change, and that matters more than anything written in the contributing guide.
Find a merged PR from a contributor with no prior contributions to the project. Read it from start to finish. Ask yourself:
- Did a maintainer leave constructive feedback, or did they just nitpick style?
- Was there any acknowledgment of effort, even a simple “thanks for this” before requesting changes?
- Did the contributor end up with a positive experience, or did they disappear after the first round of review?
A project can reject you without ever saying no. If maintainers ignore a PR for weeks, then request sweeping architectural changes with no explanation, that’s a de facto rejection. Look for projects where the review process feels like a tutoring session, not an interrogation.
Look at the Tone of Issue Triage
Pull requests are only half the story. Issues reveal how maintainers treat people who know less than they do. Scroll through recently closed issues and look for questions that were clearly asked by beginners. How did the maintainers respond?
Some useful signals:
- Are beginner questions answered with patience and links to relevant docs?
- Are duplicate issues closed with kindness or with an eye-roll in text form?
- Do maintainers ask clarifying questions, or do they immediately dump someone into a “read the docs” link?
A project can be technically excellent and still be a terrible place for your first PR. The tone of issue triage tells you whether maintainers see outside contributors as a burden or as part of the project’s health. Choose a project where curiosity is treated with respect.
Check the Contributor Mix and the Age of the Project
New contributors are more likely to feel comfortable in a project that has a track record of accepting them. One way to see this is to look at the commit history beyond the core maintainer team. If you see usernames appearing once and never again, followed by a merge and some thank-you messages, that project has normalized the act of welcoming strangers.
That said, don’t pick a project so old and stable that there is nothing to fix. Projects with a steady stream of recent commits are ideal. Avoid anything abandoned or in “maintenance mode,” because even a perfect PR will stall when no one is looking at the repository.
Use the 15-Minute Rule to Narrow Your Options
Instead of scrolling through every repository, apply a quick 15-minute triage routine to each candidate:
- Open the PR tab and filter by “merged”. Are there at least five merged PRs in the past month?
- Pick the three most recent merged PRs from contributors outside the core team. How long did they take to get merged?
- Read the first maintainer comment on each of those PRs. Is it welcoming and actionable?
- Check the issues tab for any question from a beginner that got a kind, effective answer.
If a project passes those four checkpoints, it is very unlikely to reject your first contribution. It may ask for changes, sure, but that is part of the process. The rejection you’re trying to avoid is the silent, indefinite wait with no feedback and no path forward. A project that talks to you, even when the answer is “not yet,” is a project worth contributing to.
One more tip: use the project’s documentation and code of conduct to confirm the tone you observed in PRs. A code of conduct that mentions mentorship and beginner support is a strong signal, but only when the pull request history actually matches that language. Trust the behavior over the document.
The Takeaway: Choose a Project That Talks Back
A project that won’t reject you is not one that accepts everything blindly. It’s one that responds to contributors quickly and honestly, gives feedback that helps you improve, and has a track record of merging work from people who are just starting out. By scanning maintainer response times, reading recent merged PRs, and studying how maintainers talk to newcomers in issues and reviews, you can turn open source contribution from a scary gamble into a predictable, learnable process. You don’t need to be lucky. You just need to choose well.
