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JetBrains/kotlin

Establishedrank #203

The Kotlin Programming Language.

53.5k+222 · 7d 6.4k 192est. NOASSERTIONKotlinpushed 2h ago
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Composite

70

conf 65%

Momentum

62

conf 60%

Vitality (PVI)

69

conf 67%

Community

66

conf 60%

Security & maint.

81

conf 85%

Ecosystem influence

82

conf 60%

Opportunity

67

conf 60%

Breakout · 7d

53%

conf 71%

Executive summary

kotlin is currently classified as established with a composite score of 70/100. Momentum (62) and vitality (69) are aligned — growth is backed by sustained maintenance. Estimated 7-day gain of 222 stars against a 53.5k-star base. Risk is assessed as low; the interpretable model puts its probability of entering the top trend cohort within 7 days at 53%.

90-day trajectory

+906 · 30d
2026-07-132026-10-10

Score breakdown

Every input, weight and normalized value — nothing hidden. Inputs marked est. are estimated until the full ingestion pipeline lands.

Momentum

Star velocityest.25%65
Star accelerationest.15%53
Fork velocityest.10%59
Contributor growthest.10%93
Issue activity growthest.10%72
PR activity growthest.10%69
External mention velocityest.10%4
Release event impactest.5%85
Trending-rank persistenceest.5%74

Model tn-interpretable-1.0.0 · confidence 60% · coverage 100%

Project Vitality Index

Commit consistency20%100
Release cadenceest.15%56
PR responsivenessest.15%51
Issue responsivenessest.15%50
Contributor diversityest.10%85
Maintainer continuityest.10%92
Documentation qualityest.5%58
Dependency freshnessest.5%51
Security hygieneest.5%45

Model tn-interpretable-1.0.0 · confidence 67% · coverage 92% · missing: licenseClarity

Security & maintenance

Release recency25%100
License clarity20%30
Maintenance status25%100
Dependency stalenessest.15%67
Bus factorest.15%100

Model tn-interpretable-1.0.0 · confidence 85% · coverage 100%

Ecosystem influence

Dependent repositoriesest.30%92
Quality-weighted dependentsest.20%75
Documentation citationsest.15%67
Contributor overlapest.15%77
Registry adoptionest.10%79
Topic centralityest.10%100

Model tn-interpretable-1.0.0 · confidence 60% · coverage 92% · missing: packageRegistryAdoption