Is cfug/dio welcoming to first-time open-source contributors?
cfug/dio has a recorded first-timer success rate of 85.7%. Repositories ranked A typically provide actionable feedback during code reviews and actively nurture new community contributors.
AI Maintainer Review Guidelines
Review Persona
High-Friction Gatekeeper
Warmth Score
5.8/10
Patience Score
6.6/10
Nitpick Rate
54%
Rigorous architecture standards (83% critical review signals). Ensure PRs strictly follow guidelines before requesting review in cfug/dio.
Top PR Submission Do's
- •Add unit tests with >80% coverage for modified code paths
- •Use conventional commit messages and clean branch names
- •Link relevant GitHub issue ID in PR description pre-flight checklist
Top PR Friction Pitfalls (Don'ts)
- •Do not submit unlinked PRs without referencing an existing issue
- •Do not mix refactoring and feature logic into a single commit
- •Do not ping maintainers repeatedly within 24 hours of opening
Response Velocity
1 days+
Standard maintainer review cycle
Average Response Latency
Tracks hours until a maintainer leaves a review, comment, or PR response.
Merge Efficiency
76.7%
High acceptance rate for external PRs
External Acceptance Rate
Percentage of community pull requests successfully merged into main.
First-Timer Success
85.7%
Strong first-timer PR acceptance rate
First PR Conversion
Rate at which developers submitting their first repository PR succeed.
Active Maintainers
6 core
Highly collaborative maintainer core
Diagnostic Health HUD
76.7%
Merge Gauge
85.7%
1st-Timer
Community Vibe56/100
Embed C-Rank Badge
Show contributors that your repository actively reviews and merges external pull requests.
[](https://getmerged.abhishekco.de/cfug/dio?utm_source=github&utm_medium=badge)
90-Day C-Rank Trajectory
28 snapshotsHistorical health & responsiveness evolution
58.2/100A
Oct 11
+41.1
Aug 9Range: 17.2 – 61.2 ptsOct 11
PR Acceptance & Review Speed Forecast
Precomputed via Live PR Events
Overall Merge Odds
76.7%
External PR acceptance
First-Timer Rate
85.7%
First PR success rate
Median Response (p50)
45h
50% receive response in
Tail Latency (p90)
N/A
90% receive response in
Active Maintainers: 6
Optimal PR Submission Window
Maintainer review activity heatmap & prime window prediction
Monday - WednesdayConfidence: 30%
Peak Review Hour
03:00 UTC
Calculating local time...
Primary Window
01:00 - 05:00 UTC
Calculating local time...
Active Maintainers
5 Tracked
Detected: UTC
24-Hour Maintainer Activity Heatmap (UTC)
LowPeak
00:0006:0012:0018:0023:00
Maintainers are most responsive around 03:00 UTC (03:00 UTC in your timezone). Recommended submission window is Monday - Wednesday from 01:00 to 05:00 UTC (01:00 - 05:00 UTC local).
PR Size vs Review Speed
Best Pull Request Size for cfug/dio
Sweet Spot: < 150 lines
Small (<150 LOC)Recommended
1.2davg review
96% Merge Approval
Medium (150–500 LOC)Normal
2.8davg review
73% Merge Approval
Large (>500 LOC)Slow
9.0davg review
35% Merge Approval
Maintainer Strategy: Maintainer Sweet Spot: PRs under 150 lines merge in ~29 hours (96% approval). Large PRs (>500 lines) take ~217 hours (35% approval). Keep your diff compact for rapid review.
Active Good First Issues (0)
No cached good first issues currently tracked for cfug/dio.
Looking for more Dart beginner tasks?Explore Dart GFI
Contributor Community Vibe Feedback
Rate what actually matters after opening a pull request here.
Have you contributed to this repo?
Rate your first-hand PR experience (review speed, maintainer responsiveness, and onboarding ease) to help other contributors.
Maintainer helpfulness
Review speed
Beginner friendliness
Contributor Compatibility & Review Speed Analysis for cfug/dio
When evaluating whether to contribute to cfug/dio, response velocity and maintainer engagement are crucial. GetMerged continuously tracks pull request trajectories, first-comment latency, and code review rounds to help developers avoid submitting pull requests to backlogged repositories.
Currently, maintainers of cfug/dio acknowledge new external contributions in approximately 1 days+. Out of all submitted pull requests from non-core authors in the last 180-day window, 76.7% were successfully merged into the primary branch.
Frequently Asked Questions - Contributing to cfug/dio
01
Is cfug/dio welcoming to first-time open-source contributors?
cfug/dio has a recorded first-timer success rate of 85.7%. Repositories ranked Welcoming typically provide actionable feedback during code reviews and actively nurture new community contributors.
02
How fast can I expect code review feedback on my pull request?
The initial maintainer response time averages ~1 days+. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.
03
What does the 58.0 C-Rank™ score represent?
The C-Rank™ index scores repositories on a 0 to 100 scale using an objective formula: external PR merge rates, initial response speed, active maintainer count, and first-time contributor retention. A score of 58.0 places cfug/dio in the Welcoming tier.
04
What is the external contributor pull request merge rate for cfug/dio?
The external pull request merge rate is 76.7%. GetMerged isolates non-core community contributions so external developers get an accurate benchmark of PR acceptance probability.
05
Are there beginner Good First Issues open in cfug/dio?
cfug/dio does not have open beginner labels indexed currently, but external PRs for bugs and documentation improvements are evaluated via normal issue triage.
GetMerged C-Rank™ Indexing Standard
All metrics displayed for cfug/dio are automatically retrieved via the public GitHub API and recalculated daily. Insider pull requests submitted by repository owners or organization members are excluded from merge rate calculations to preserve objective external contributor statistics.