MetaMask/metamask-extension - Open Source PR Review Scorecard

:globe_with_meridians: :electric_plug: The MetaMask browser extension enables browsing Ethereum blockchain enabled websites

C-Rank Grade: A (Welcoming) - 59/100

External PR Merge Rate: 69%

Response Time: 1d

First Timer Success: 59%

Frequently Asked Questions

Is MetaMask/metamask-extension welcoming to first-time open-source contributors?

MetaMask/metamask-extension has a recorded first-timer success rate of 58.6%. Repositories ranked A typically provide actionable feedback during code reviews and actively nurture new community contributors.

How fast can I expect code review feedback on my pull request?

Maintainers in MetaMask/metamask-extension respond to incoming external pull requests in approximately 28.0 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.

What does the 59.4 C-Rank™ score (A Tier) represent?

The C-Rank™ system evaluates GitHub projects on a 0–100 scale using real data: PR merge rates, review turnaround time, active maintainer presence, and first-time contributor success. A score of 59.4 places MetaMask/metamask-extension in the A tier.

What is the external contributor pull request merge rate for MetaMask/metamask-extension?

The external contributor pull request merge rate for MetaMask/metamask-extension is 69.5%, based on public PR activity from non-core contributors.

Are there Good First Issues available in MetaMask/metamask-extension?

MetaMask/metamask-extension currently has 1 active issue(s) tagged with beginner-friendly labels like "good first issue", "beginner", or "up-for-grabs".

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MetaMask/metamask-extension

13,204
AWelcoming(59/100)TypeScript

:globe_with_meridians: :electric_plug: The MetaMask browser extension enables browsing Ethereum blockchain enabled websites

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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
69.5%
Moderate PR acceptance rate

External Acceptance Rate

Percentage of community pull requests successfully merged into main.

First-Timer Success
58.6%
Strong first-timer PR acceptance rate

First PR Conversion

Rate at which developers submitting their first repository PR succeed.

Active Maintainers
87 core
Highly collaborative maintainer core
Diagnostic Health HUD
69.5%
Merge Gauge
58.6%
1st-Timer
Community Vibe54/100

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Active Good First Issues (1)

View on GitHub

This repository currently has 1 open good first issue tickets available for newcomers.

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Contributor Community Vibe Feedback

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Contributor Compatibility & Review Speed Analysis for MetaMask/metamask-extension

When evaluating whether to contribute to MetaMask/metamask-extension, 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 MetaMask/metamask-extension acknowledge new external contributions in approximately 1 days+. Out of all submitted pull requests from non-core authors in the last 180-day window, 69.5% were successfully merged into the primary branch.

Frequently Asked Questions - Contributing to MetaMask/metamask-extension

01

Is MetaMask/metamask-extension welcoming to first-time open-source contributors?

MetaMask/metamask-extension has a recorded first-timer success rate of 58.6%. 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 59.4 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 59.4 places MetaMask/metamask-extension in the Welcoming tier.

04

What is the external contributor pull request merge rate for MetaMask/metamask-extension?

The external pull request merge rate is 69.5%. 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 MetaMask/metamask-extension?

Yes, MetaMask/metamask-extension 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 MetaMask/metamask-extension 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.