High-performance data-driven data specification library for Clojure/Script.
C-Rank Grade: B (Solid) - 45/100
External PR Merge Rate: 50%
Response Time: 7d
First Timer Success: -
metosin/malli has a recorded first-timer success rate of 0.0%. Repositories ranked B typically provide actionable feedback during code reviews and actively nurture new community contributors.
Maintainers in metosin/malli respond to incoming external pull requests in approximately 179.2 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.
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 44.8 places metosin/malli in the B tier.
The external contributor pull request merge rate for metosin/malli is 50.0%, based on public PR activity from non-core contributors.
metosin/malli currently has 2 active issue(s) tagged with beginner-friendly labels like "good first issue", "beginner", or "up-for-grabs".
Collaborative maintainer environment in metosin/malli. Reviews community pull requests with focus on project quality.
Discussions in metosin/malli focus heavily on practical implementation feedback, code formatting standards, and issue reproduction details.
Unlinked PRs without issue context and changes that fail automated test suites face the highest review friction.
Average Response Latency
Tracks hours until a maintainer leaves a review, comment, or PR response.
External Acceptance Rate
Percentage of community pull requests successfully merged into main.
First PR Conversion
Rate at which developers submitting their first repository PR succeed.
Show contributors that your repository actively reviews and merges external pull requests.
[](https://getmerged.abhishekco.de/metosin/malli?utm_source=github&utm_medium=badge)
Historical health & responsiveness evolution
External PR acceptance
First PR success rate
50% receive response in
90% receive response in
Maintainer review activity heatmap & prime window prediction
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Detected: UTC
Maintainers are most responsive around 10:00 UTC (10:00 UTC in your timezone). Recommended submission window is Wednesday - Friday from 08:00 to 12:00 UTC (08:00 - 12:00 UTC local).
Maintainer Strategy: Maintainer Sweet Spot: PRs under 150 lines merge in ~116 hours (62% approval). Large PRs (>500 lines) take ~860 hours (22% approval). Keep your diff compact for rapid review.
When generating the OpenAPI spec of a public API using Reitit and Malli, I would like to be able to hide certain details of the Malli spec. Example: [:and :string [:enum {:openapi {:hide true}} "a" "b"]] ;-> only `:string` is encoded in the OpenAPI spec, `:enum` does not appear
Hello :) Found myself having to make some stylistic compromises with decimals in my schema, and would have liked it if it was supported like a :double schema with min max preds and bound generation. Alternatives: use decimal? and custom generators / and :and for bounds define my own schema Thanks
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When evaluating whether to contribute to metosin/malli, 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 metosin/malli acknowledge new external contributions in approximately 7 days+. Out of all submitted pull requests from non-core authors in the last 180-day window, 50.0% were successfully merged into the primary branch.
metosin/malli has a recorded first-timer success rate of 0.0%. Repositories ranked Solid typically provide actionable feedback during code reviews and actively nurture new community contributors.
The initial maintainer response time averages ~7 days+. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.
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 44.8 places metosin/malli in the Solid tier.
The external pull request merge rate is 50.0%. GetMerged isolates non-core community contributions so external developers get an accurate benchmark of PR acceptance probability.
Yes, metosin/malli currently has 2 active issue(s) tagged with beginner-friendly labels. You can inspect these directly from the repository issues tab.
All metrics displayed for metosin/malli 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.