roboflow/rf-detr - Open Source PR Review Scorecard

RF-DETR is a real-time object detection and segmentation model architecture developed by Roboflow, SOTA on COCO, designed for fine-tuning. [ICLR 2026]

C-Rank Grade: A (Welcoming) - 64/100

External PR Merge Rate: 81%

Response Time: 2d

First Timer Success: 64%

Frequently Asked Questions

Is roboflow/rf-detr welcoming to first-time open-source contributors?

roboflow/rf-detr has a recorded first-timer success rate of 64.0%. 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 roboflow/rf-detr respond to incoming external pull requests in approximately 58.0 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.

What does the 64.1 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 64.1 places roboflow/rf-detr in the A tier.

What is the external contributor pull request merge rate for roboflow/rf-detr?

The external contributor pull request merge rate for roboflow/rf-detr is 81.2%, based on public PR activity from non-core contributors.

Are there Good First Issues available in roboflow/rf-detr?

roboflow/rf-detr does not currently have active "good first issue" tags indexed, but accepts external contributions through standard GitHub issue tracking.

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roboflow/rf-detr

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Active (30d)A•Welcoming(64/100)Python

RF-DETR is a real-time object detection and segmentation model architecture developed by Roboflow, SOTA on COCO, designed for fine-tuning. [ICLR 2026]

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AI Maintainer Review Guidelines

Review Persona

Empathetic Technical Mentor

Warmth Score
8.1/10
Patience Score
8.4/10
Nitpick Rate
30%

Highly welcoming maintainers in roboflow/rf-detr. Prompt code reviews with positive guidance for new contributors.

Top PR Submission Do's

  • •Ensure code complies with the project coding style
  • •Keep PRs scoped to a single concern
  • •Include context and link to the related issue

Top PR Friction Pitfalls (Don'ts)

  • •Do not submit PRs without linking an issue
  • •Do not break existing tests without fixing them
  • •Do not mix unrelated refactors in a single PR
Response Velocity
2 days+
Standard maintainer review cycle

Average Response Latency

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

Merge Efficiency
81.2%
High acceptance rate for external PRs

External Acceptance Rate

Percentage of community pull requests successfully merged into main.

First-Timer Success
64.0%
Strong first-timer PR acceptance rate

First PR Conversion

Rate at which developers submitting their first repository PR succeed.

Active Maintainers
50 core
Highly collaborative maintainer core
Diagnostic Health HUD
81.2%
Merge Gauge
64.0%
1st-Timer
Community Vibe52/100

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GetMerged C-Rank badge for roboflow/rf-detr
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Active Good First Issues (3)

View on GitHub

Context Currently, our PyTorch DataLoader is bottlenecked by CPU image decoding during the __getitem__ loop. When training RF-DETR on datasets like COCO 2017 (118k images), using standard PIL.Image.open or default OpenCV backends causes heavy CPU contention. Profiling shows high system RAM usage and low CPU compute utilization, indicating that the workers are stalling on single-threaded decoding overhead. This leaves our GPU (e.g., RTX 6000) underutilized due to data starvation. Proposed Solution Replace the default JPEG decoder in the dataset class with turbojpeg (or jpeg4py, wrapping libjpeg-turbo). The implementation should: Read bytes directly and decode to a NumPy array (RGB). Pass the decoded array seamlessly into our existing Albumentations CPU pipeline. Fall back gracefully to cv2 or PIL if the image format is not JPEG or if libjpeg-turbo is not installed on the host machine. Impact Throughput: libjpeg-turbo is generally 2x to 3x faster than PIL for decoding JPEGs to NumPy a

📅 Opened Aug 22, 2026💬 6 comments
Quality: 90/100Contribute

I struggle a lot reading the current code because of some intrinsic coding conventions or lack thereof. Would it possible to get something instated that gives some guidelines on how to write things? Some examples: Reveal intent — name should say what it holds/does without needing a comment (elapsed_time_in_days, not d) No disinformation — name should match the actual type/behavior (don't call a dict a _list) Meaningful distinctions — if two vars differ, the name should say why (raw_data vs normalized_data, not data vs data2) Pronounceable & searchable — avoid cryptic abbreviations and magic numbers; use MAX_RETRIES, not 5 No mental mapping — avoid i, x, tmp outside tiny local scopes Nouns for classes, verbs for methods — Customer, not DataManager; save(), not data() One word per concept — pick fetch or get, not both, across the codebase No puns — don't reuse the same word for different meanings Use domain vocabulary — match terms your team already uses in conversatio

📅 Opened Jul 5, 2026💬 2 comments
Quality: 55/100Contribute

Search before asking I have searched the RF-DETR issues and found no similar feature requests. Description I suggest we remove them from the docstrings and rely solely on the signature. Here is the breakdown of why the Python ecosystem has shifted this way: 1. The Modern Approach (Signature as Truth) Since PEP 484, the standard is to treat the function signature as the Single Source of Truth. Tools like mypy, Pyright, and our IDEs rely entirely on the signature to validate our code. By keeping the focus there, we ensure that the types we document are the actual types being enforced by the interpreter. 2. The Legacy Approach (Why to avoid duplication) Writing types in the docstring was necessary before Python 3.5, but today it is considered a violation of DRY (Don't Repeat Yourself). Maintenance Burden: It creates a "split truth." If we change a variable from int to float in the code but forget to update the English text in the docstring, our documentation becomes factually incorrec

📅 Opened Jan 21, 2026💬 26 comments
Quality: 70/100Contribute
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Contributor Compatibility & Review Speed Analysis for roboflow/rf-detr

When evaluating whether to contribute to roboflow/rf-detr, 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 roboflow/rf-detr acknowledge new external contributions in approximately 2 days+. Out of all submitted pull requests from non-core authors in the last 180-day window, 81.2% were successfully merged into the primary branch.

Frequently Asked Questions - Contributing to roboflow/rf-detr

01

Is roboflow/rf-detr welcoming to first-time open-source contributors?

roboflow/rf-detr has a recorded first-timer success rate of 64.0%. 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 ~2 days+. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.

03

What does the 64.1 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 64.1 places roboflow/rf-detr in the Welcoming tier.

04

What is the external contributor pull request merge rate for roboflow/rf-detr?

The external pull request merge rate is 81.2%. 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 roboflow/rf-detr?

roboflow/rf-detr does not have open beginner labels indexed currently, but external PRs for bugs and documentation improvements are evaluated via normal issue triage.

GetMerged C-Rank™ Indexing Standard

All metrics displayed for roboflow/rf-detr 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.