jub0t/Concat - Open Source PR Review Scorecard

⭐ Concat: The truly free, and open-source cross-platform CapCut replacement (supports MCPs).

C-Rank Grade: A (Welcoming) - 63/100

External PR Merge Rate: 31%

Response Time: <1h

First Timer Success: 60%

Frequently Asked Questions

Is jub0t/Concat welcoming to first-time open-source contributors?

jub0t/Concat has a recorded first-timer success rate of 60.0%. 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 jub0t/Concat respond to incoming external pull requests in approximately 0.7 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.

What does the 63.2 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 63.2 places jub0t/Concat in the A tier.

What is the external contributor pull request merge rate for jub0t/Concat?

The external contributor pull request merge rate for jub0t/Concat is 31.0%, based on public PR activity from non-core contributors.

Are there Good First Issues available in jub0t/Concat?

jub0t/Concat currently has 6 active issue(s) tagged with beginner-friendly labels like "good first issue", "beginner", or "up-for-grabs".

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jub0t/Concat

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InactiveA•Welcoming(63/100)Rust

⭐ Concat: The truly free, and open-source cross-platform CapCut replacement (supports MCPs).

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AI Maintainer Review Guidelines

Review Persona

Strict Architecture Gatekeeper

Warmth Score
7.2/10
Patience Score
8.0/10
Nitpick Rate
25%

Strict review standards in jub0t/Concat. Ensure PR scope matches issue requirements closely before requesting review.

What Contributors Actually Say

Discussions in jub0t/Concat focus heavily on practical implementation feedback, code formatting standards, and issue reproduction details.

Hidden Friction Signals

Unlinked PRs without issue context and changes that fail automated test suites face the highest review friction.

Unwritten Rules

  • •1) Keep PR scope strictly aligned with the linked issue.
  • •2) Ensure local linters pass before opening a review.
  • •3) Maintain full test coverage for modified logic.

Top PR Submission Do's

  • •Add or update tests for changed behavior before requesting review
  • •Link the issue and include reproduction context in the PR
  • •Include context and link to the related issue

Top PR Friction Pitfalls (Don'ts)

  • •Do not leave requested test coverage unresolved
  • •Do not open context-free PRs
  • •Do not mix unrelated refactors in a single PR
Response Velocity
<1 hour
⚡ Fast reviewer response

Average Response Latency

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

Merge Efficiency
31.0%
Moderate PR acceptance rate

External Acceptance Rate

Percentage of community pull requests successfully merged into main.

First-Timer Success
60.0%
Strong first-timer PR acceptance rate

First PR Conversion

Rate at which developers submitting their first repository PR succeed.

Active Maintainers
19 core
Highly collaborative maintainer core
Diagnostic Health HUD
31.0%
Merge Gauge
60.0%
1st-Timer
Community Vibe60/100

Embed C-Rank Badge

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

GetMerged C-Rank badge for jub0t/Concat
[![GetMerged C-Rank](https://getmerged.abhishekco.de/api/badge/jub0t/Concat)](https://getmerged.abhishekco.de/jub0t/Concat?utm_source=github&utm_medium=badge)

Active Good First Issues (5)

View on GitHub
📅 Opened Oct 11, 2026💬 1 comment
Quality: 70/100Contribute
📅 Opened Oct 10, 2026💬 2 comments
Quality: 70/100Contribute

We need to test this thing:

📅 Opened Sep 23, 2026💬 0 comments
Quality: 75/100Contribute

Right now videos on the timeline only show the visual frames at different timestamps but they do not show the audio related to the video. TODO: Add a section under the video preview that shows that video's audio waveform, if the video has no audio, still show the section but with zero/empty waveform pattern.

📅 Opened Sep 18, 2026💬 0 comments
Quality: 90/100Contribute

Create a docs/ directory in the repository where all the documentation for MCPs, JSON API, and gRPC exists and receives updates.

📅 Opened Sep 17, 2026💬 0 comments
Quality: 85/100Contribute
Looking for more Rust beginner tasks?Explore Rust 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.

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Maintainer helpfulness
Review speed
Beginner friendliness

Contributor Compatibility & Review Speed Analysis for jub0t/Concat

When evaluating whether to contribute to jub0t/Concat, 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 jub0t/Concat acknowledge new external contributions in approximately <1 hour. Out of all submitted pull requests from non-core authors in the last 180-day window, 31.0% were successfully merged into the primary branch.

Frequently Asked Questions - Contributing to jub0t/Concat

01

Is jub0t/Concat welcoming to first-time open-source contributors?

jub0t/Concat has a recorded first-timer success rate of 60.0%. 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 hour. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.

03

What does the 63.2 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 63.2 places jub0t/Concat in the Welcoming tier.

04

What is the external contributor pull request merge rate for jub0t/Concat?

The external pull request merge rate is 31.0%. 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 jub0t/Concat?

Yes, jub0t/Concat currently has 6 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 jub0t/Concat 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.