Is mvdan/sh welcoming to first-time open-source contributors?
mvdan/sh has a recorded first-timer success rate of 33.3%. Repositories ranked B typically provide actionable feedback during code reviews and actively nurture new community contributors.
AI Maintainer Review Guidelines
Review Persona
Constructive Code Reviewer
Warmth Score
7.4/10
Patience Score
7.8/10
Nitpick Rate
33%
Balanced & professional review environment in mvdan/sh. Maintains strict focus on technical quality and test standards.
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
19 hours
Standard maintainer review cycle
Average Response Latency
Tracks hours until a maintainer leaves a review, comment, or PR response.
Merge Efficiency
22.9%
Selective PR acceptance rate
External Acceptance Rate
Percentage of community pull requests successfully merged into main.
First-Timer Success
33.3%
Accepts new contributor PRs
First PR Conversion
Rate at which developers submitting their first repository PR succeed.
Active Maintainers
7 core
Highly collaborative maintainer core
Diagnostic Health HUD
22.9%
Merge Gauge
33.3%
1st-Timer
Community Vibe35/100
Embed C-Rank Badge
Show contributors that your repository actively reviews and merges external pull requests.
[](https://getmerged.abhishekco.de/mvdan/sh?utm_source=github&utm_medium=badge)
90-Day C-Rank Trajectory
9 snapshotsHistorical health & responsiveness evolution
45.0/100B
Aug 23
+35.8
Aug 8Range: 7.2 – 45.0 ptsAug 23
PR Acceptance & Review Speed Forecast
Run Pre-flight PR CheckPrecomputed via Live PR Events
Overall Merge Odds
22.9%
External PR acceptance
First-Timer Rate
33.3%
First PR success rate
Median Response (p50)
19h
50% receive response in
Tail Latency (p90)
N/A
90% receive response in
Active Maintainers: 7
Optimal PR Submission Window
Maintainer review activity heatmap & prime window prediction
Monday - ThursdayLow Data Confidence
Peak Review Hour
16:00 UTC
Calculating local time...
Primary Window
14:00 - 18:00 UTC
Calculating local time...
Active Maintainers
Heuristic Estimate
Detected: UTC
24-Hour Maintainer Activity Heatmap (UTC)
LowPeak
00:0006:0012:0018:0023:00
Maintainers are most responsive around 16:00 UTC (16:00 UTC in your timezone). Recommended submission window is Monday - Thursday from 14:00 to 18:00 UTC (14:00 - 18:00 UTC local).
Limited recent maintainer review activity recorded for this repository. Prediction based on heuristic baseline.
PR Size vs Review Speed
Best Pull Request Size for mvdan/sh
Sweet Spot: < 150 lines
Small (<150 LOC)Recommended
13havg review
29% Merge Approval
Medium (150–500 LOC)Normal
1.2davg review
22% Merge Approval
Large (>500 LOC)Slow
3.9davg review
15% Merge Approval
Maintainer Strategy: Maintainer Sweet Spot: PRs under 150 lines merge in ~13 hours (29% approval). Large PRs (>500 lines) take ~93 hours (15% approval). Keep your diff compact for rapid review.
Interactive Test: Test your planned branch diff against mvdan/sh's ~150 LOC sweet spot before opening a PR.
PR Merge Doctor · Pre-Submission Diff Check
Simulate Your PR Merge Speed
Enter your branch size and test coverage below to forecast review turnaround and get 1-click git splitting commands.
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Active Good First Issues (1)
zsh allows hyphens in the keys for associative arrays, but shfmt adds spaces around the hyphens breaking them Input foo() { local -A dot_parse_opts_errors=() dot_parse_opts_errors[too-many-positional]="You may only specify one array name." <...> } Output foo() { local -A dot_parse_opts_errors=() dot_parse_opts_errors[too - many - positional]="You may only specify one array name." <...> }
📅 Opened Dec 13, 2025💬 8 comments
Quality: 70/100Contribute
Looking for more Go beginner tasks?Explore Go GFI
Contributor Community Vibe Feedback
Rate what actually matters after opening a pull request here.
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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 mvdan/sh
When evaluating whether to contribute to mvdan/sh, 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 mvdan/sh acknowledge new external contributions in approximately 19 hours. Out of all submitted pull requests from non-core authors in the last 180-day window, 22.9% were successfully merged into the primary branch.
Frequently Asked Questions - Contributing to mvdan/sh
01
Is mvdan/sh welcoming to first-time open-source contributors?
mvdan/sh has a recorded first-timer success rate of 33.3%. Repositories ranked Solid 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 ~19 hours. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.
03
What does the 49.9 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 49.9 places mvdan/sh in the Solid tier.
04
What is the external contributor pull request merge rate for mvdan/sh?
The external pull request merge rate is 22.9%. 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 mvdan/sh?
Yes, mvdan/sh currently has 1 active issue(s) tagged with beginner-friendly labels. You can inspect these directly from the repository issues tab.
GetMerged C-Rank™ Indexing Standard
All metrics displayed for mvdan/sh 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.