FasterXML/jackson-module-scala - Open Source PR Review Scorecard

Add-on module for Jackson (https://github.com/FasterXML/jackson) to support Scala-specific datatypes

C-Rank Grade: B (Solid) - 72/100

External PR Merge Rate: 92%

Response Time: 23h

First Timer Success: 100%

Frequently Asked Questions

Is FasterXML/jackson-module-scala welcoming to first-time open-source contributors?

FasterXML/jackson-module-scala has a recorded first-timer success rate of 100.0%. Repositories ranked B 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 FasterXML/jackson-module-scala respond to incoming external pull requests in approximately 23.1 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.

What does the 71.6 C-Rankâ„¢ score (B 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 71.6 places FasterXML/jackson-module-scala in the B tier.

What is the external contributor pull request merge rate for FasterXML/jackson-module-scala?

The external contributor pull request merge rate for FasterXML/jackson-module-scala is 91.7%, based on public PR activity from non-core contributors.

Are there Good First Issues available in FasterXML/jackson-module-scala?

FasterXML/jackson-module-scala currently has 1 active issue(s) tagged with beginner-friendly labels like "good first issue", "beginner", or "up-for-grabs".

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FasterXML/jackson-module-scalaB•Solid507
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FasterXML/jackson-module-scala

507
B•Solid(72/100)Scala

Add-on module for Jackson (https://github.com/FasterXML/jackson) to support Scala-specific datatypes

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Response Velocity
23 hours
Standard maintainer review cycle

Average Response Latency

Tracks hours until a maintainer leaves a review, comment, or PR response.

Merge Efficiency
91.7%
High acceptance rate for external PRs

External Acceptance Rate

Percentage of community pull requests successfully merged into main.

First-Timer Success
100.0%
Strong first-timer PR acceptance rate

First PR Conversion

Rate at which developers submitting their first repository PR succeed.

Active Maintainers
1 core
Single maintainer review bottleneck
Diagnostic Health HUD
91.7%
Merge Gauge
100.0%
1st-Timer
Community Vibe79/100

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Active Good First Issues (1)

View on GitHub

jackson-module-scala supports simple Scala 3 enums like these: enum ColorEnum { case Red, Green, Blue } enum JavaCompatibleColorEnum extends java.lang.Enum[JavaCompatibleColorEnum] { case Red, Green, Blue } enum JavaCompatibleColorEnum extends java.lang.Enum[JavaCompatibleColorEnum] { case Red, Green, Blue } enum Color(val rgb: Int): case Red extends Color(0xFF0000) case Green extends Color(0x00FF00) case Blue extends Color(0x0000FF) case Mix(mix: Int) extends Color(mix) We don't yet support Parameterized Cases in Scala 3 Enums Scala 3 enums support cases with parameters, similar to how you'd define a sealed trait hierarchy with case classes, but with much less boilerplate. Basic Syntax enum Shape: case Circle(radius: Double) case Rectangle(width: Double, height: Double) case Triangle(base: Double, height: Double) Basically, the current code uses the toString on the case instance and and we look for the derived valueOf function that Scala creates on the derived compani

📅 Opened Aug 18, 2026💬 0 comments
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Contributor Compatibility & Review Speed Analysis for FasterXML/jackson-module-scala

When evaluating whether to contribute to FasterXML/jackson-module-scala, 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 FasterXML/jackson-module-scala acknowledge new external contributions in approximately 23 hours. Out of all submitted pull requests from non-core authors in the last 180-day window, 91.7% were successfully merged into the primary branch.

Frequently Asked Questions - Contributing to FasterXML/jackson-module-scala

01

Is FasterXML/jackson-module-scala welcoming to first-time open-source contributors?

FasterXML/jackson-module-scala has a recorded first-timer success rate of 100.0%. 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 ~23 hours. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.

03

What does the 71.6 C-Rankâ„¢ score represent?

The C-Rankâ„¢ 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 71.6 places FasterXML/jackson-module-scala in the Solid tier.

04

What is the external contributor pull request merge rate for FasterXML/jackson-module-scala?

The external pull request merge rate is 91.7%. 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 FasterXML/jackson-module-scala?

Yes, FasterXML/jackson-module-scala currently has 1 active issue(s) tagged with beginner-friendly labels. You can inspect these directly from the repository issues tab.

GetMerged C-Rankâ„¢ Indexing Standard

All metrics displayed for FasterXML/jackson-module-scala 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.