Is cncf/toc welcoming to first-time open-source contributors?
cncf/toc has a recorded first-timer success rate of 0.0%. Repositories ranked D typically provide actionable feedback during code reviews and actively nurture new community contributors.
AI Maintainer Review Guidelines
Review Persona
Welcoming Community Builder
Warmth Score
8.8/10
Patience Score
8.8/10
Nitpick Rate
25%
Highly welcoming maintainers in cncf/toc. Prompt code reviews with positive guidance for new contributors.
What Contributors Actually Say
Discussions in cncf/toc 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
- •Call out API, migration, or compatibility impact clearly
- •Run the repository formatter and linter locally
- •Link the issue and include reproduction context in the PR
Top PR Friction Pitfalls (Don'ts)
- •Do not hide breaking changes in implementation details
- •Do not submit formatting-only noise with feature changes
- •Do not open context-free PRs
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
0.0%
Selective PR acceptance rate
External Acceptance Rate
Percentage of community pull requests successfully merged into main.
First-Timer Success
0.0%
No first-timer merges recorded in window
First PR Conversion
Rate at which developers submitting their first repository PR succeed.
Active Maintainers
8 core
Highly collaborative maintainer core
Diagnostic Health HUD
0.0%
Merge Gauge
0.0%
1st-Timer
Community Vibe0/100
Embed C-Rank Badge
Show contributors that your repository actively reviews and merges external pull requests.
[](https://getmerged.abhishekco.de/cncf/toc?utm_source=github&utm_medium=badge)
PR Acceptance & Review Speed Forecast
Precomputed via Live PR Events
Overall Merge Odds
N/A
External PR acceptance
First-Timer Rate
N/A
First PR success rate
Median Response (p50)
48h
50% receive response in
Tail Latency (p90)
N/A
90% receive response in
Active Maintainers: 8 High staleness risk (no recent merges)
Optimal PR Submission Window
Maintainer review activity heatmap & prime window prediction
Tuesday - ThursdayLimited Sample Size
Peak Review Hour
02:00 UTC
Calculating local time...
Primary Window
00:00 - 04:00 UTC
Calculating local time...
Active Maintainers
2 Tracked
Detected: UTC
24-Hour Maintainer Activity Heatmap (UTC)
LowPeak
00:0006:0012:0018:0023:00
Maintainers are most responsive around 02:00 UTC (02:00 UTC in your timezone). Recommended submission window is Tuesday - Thursday from 00:00 to 04:00 UTC (00:00 - 04:00 UTC local).
PR Size vs Review Speed
Best Pull Request Size for cncf/toc
Sweet Spot: < 150 lines
Small (<150 LOC)Recommended
1.3davg review
81% Merge Approval
Medium (150–500 LOC)Normal
3.0davg review
62% Merge Approval
Large (>500 LOC)Slow
9.6davg review
29% Merge Approval
Maintainer Strategy: Maintainer Sweet Spot: PRs under 150 lines merge in ~31 hours (81% approval). Large PRs (>500 lines) take ~230 hours (29% approval). Keep your diff compact for rapid review.
Active Good First Issues (2)
Name Scale and performance testing guidance for CNCF projects Short description Define performance testing expectations by project type so DD reviewers and projects have clear benchmarks to target. Responsible group TAG Operational Resilience Does the initiative belong to a subproject? No Subproject name Primary contact TBD — TAG Operational Resilience lead Additional contacts @angellk (TOC Chair, DD finding source) Origin DD finding (automated) Initiative description This initiative is a request from the TOC. During due diligence reviews, the TOC evaluates projects against incubation and graduation criteria. When the same finding appears across multiple projects, it signals an ecosystem-wide gap that would be better addressed through standardized guidance than repeated per-project recommendations. This finding has appeared in 9 of 42 DD reports (21%) scanned over the last 5 years, including #2198 (HAMi), #2057 (Kyverno), #2038 (Microcks), #1165 (KubeEdge), and others. The most recen
📅 Opened Jul 7, 2026💬 4 comments
Quality: 40/100Contribute
Name Cloud Native Observability Personas Short description Develop a set of user personas pertaining to the Observability domain. Responsible group TAG Operational Resilience Does the initiative belong to a subproject? No Subproject name No response Primary contact Matt Young Additional contacts No response Initiative description Develop a comprehensive set of user personas specific to the Cloud Native Observability domain. By defining these roles—ranging from application developers debugging code to platform engineers managing fleet-wide capacity—we aim to provide a shared vocabulary for the CNCF ecosystem. This will enable project maintainers to better target their documentation and tooling, and help end-users understand which observability signals (metrics, logs, traces, profiles, …) are most relevant to their specific role and objectives. Problem Statement As highlighted in the CNCF Observability Whitepaper, the audience for observability is multidisciplinary: Site Reliabilit
📅 Opened Feb 4, 2026💬 14 comments
Quality: 30/100Contribute
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Contributor Community Vibe Feedback
Rate what actually matters after opening a pull request here.
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Maintainer helpfulness
Review speed
Beginner friendliness
Contributor Compatibility & Review Speed Analysis for cncf/toc
When evaluating whether to contribute to cncf/toc, 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 cncf/toc acknowledge new external contributions in approximately 1 days+. Out of all submitted pull requests from non-core authors in the last 180-day window, 0.0% were successfully merged into the primary branch.
Frequently Asked Questions - Contributing to cncf/toc
01
Is cncf/toc welcoming to first-time open-source contributors?
cncf/toc has a recorded first-timer success rate of 0.0%. Repositories ranked Risky 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 27.2 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 27.2 places cncf/toc in the Risky tier.
04
What is the external contributor pull request merge rate for cncf/toc?
The external pull request merge rate is 0.0%. 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 cncf/toc?
Yes, cncf/toc currently has 2 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 cncf/toc 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.