JetBrains/koog - Open Source PR Review Scorecard

Koog is a JVM (Java and Kotlin) framework for building predictable, fault-tolerant and enterprise-ready AI agents across all platforms – from backend services to Android and iOS, JVM, and even in-browser environments. Koog is based on our AI products expertise and provides proven solutions for complex LLM and AI problems

C-Rank Grade: B (Solid) - 47/100

External PR Merge Rate: 70%

Response Time: 12d

First Timer Success: 56%

Frequently Asked Questions

Is JetBrains/koog welcoming to first-time open-source contributors?

JetBrains/koog has a recorded first-timer success rate of 56.4%. 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 JetBrains/koog respond to incoming external pull requests in approximately 297.5 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.

What does the 47.0 C-Rank™ 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 47.0 places JetBrains/koog in the B tier.

What is the external contributor pull request merge rate for JetBrains/koog?

The external contributor pull request merge rate for JetBrains/koog is 69.8%, based on public PR activity from non-core contributors.

Are there Good First Issues available in JetBrains/koog?

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

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JetBrains/koogBSolid4.5k
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JetBrains/koog

4,533
BSolid(47/100)Kotlin

Koog is a JVM (Java and Kotlin) framework for building predictable, fault-tolerant and enterprise-ready AI agents across all platforms – from backend services to Android and iOS, JVM, and even in-browser environments. Koog is based on our AI products expertise and provides proven solutions for complex LLM and AI problems

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Response Velocity
12 days+
Standard maintainer review cycle

Average Response Latency

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

Merge Efficiency
69.8%
Moderate PR acceptance rate

External Acceptance Rate

Percentage of community pull requests successfully merged into main.

First-Timer Success
56.4%
Strong first-timer PR acceptance rate

First PR Conversion

Rate at which developers submitting their first repository PR succeed.

Active Maintainers
27 core
Highly collaborative maintainer core
Diagnostic Health HUD
69.8%
Merge Gauge
56.4%
1st-Timer
Community Vibe45/100

Embed C-Rank Badge

Show contributors that your repository actively reviews and merges external pull requests.

GetMerged C-Rank badge for JetBrains/koog
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Active Good First Issues (1)

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

View all good first issues directly on GitHub

Looking for more Kotlin beginner tasks?Explore Kotlin GFI

Contributor Community Vibe Feedback

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Rate your first-hand PR experience (review speed, maintainer responsiveness, and onboarding ease) to help other contributors.

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Maintainer helpfulness
Review speed
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Contributor Compatibility & Review Speed Analysis for JetBrains/koog

When evaluating whether to contribute to JetBrains/koog, 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 JetBrains/koog acknowledge new external contributions in approximately 12 days+. Out of all submitted pull requests from non-core authors in the last 180-day window, 69.8% were successfully merged into the primary branch.

Frequently Asked Questions - Contributing to JetBrains/koog

01

Is JetBrains/koog welcoming to first-time open-source contributors?

JetBrains/koog has a recorded first-timer success rate of 56.4%. 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 ~12 days+. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.

03

What does the 47.0 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 47.0 places JetBrains/koog in the Solid tier.

04

What is the external contributor pull request merge rate for JetBrains/koog?

The external pull request merge rate is 69.8%. 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 JetBrains/koog?

Yes, JetBrains/koog 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 JetBrains/koog 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.