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protocolbuffers/protobuf

Coolingrank #70

Protocol Buffers - Google's data interchange format

72.1k+79 · 7d 16.3k 449est. NOASSERTIONC++pushed 2m ago
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Composite

70

conf 65%

Momentum

50

conf 60%

Vitality (PVI)

76

conf 67%

Community

79

conf 60%

Security & maint.

79

conf 85%

Ecosystem influence

80

conf 60%

Opportunity

52

conf 60%

Breakout · 7d

18%

conf 71%

Executive summary

protobuf is currently classified as cooling with a composite score of 70/100. Momentum (50) and vitality (76) are aligned — growth is backed by sustained maintenance. Estimated 7-day gain of 79 stars against a 72.1k-star base. Risk is assessed as low; the interpretable model puts its probability of entering the top trend cohort within 7 days at 18%.

90-day trajectory

+474 · 30d
2026-07-122026-10-09

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%53
Star accelerationest.15%36
Fork velocityest.10%42
Contributor growthest.10%88
Issue activity growthest.10%62
PR activity growthest.10%63
External mention velocityest.10%1
Release event impactest.5%84
Trending-rank persistenceest.5%31

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

Project Vitality Index

Commit consistency20%100
Release cadenceest.15%74
PR responsivenessest.15%73
Issue responsivenessest.15%49
Contributor diversityest.10%98
Maintainer continuityest.10%68
Documentation qualityest.5%79
Dependency freshnessest.5%71
Security hygieneest.5%51

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%69
Bus factorest.15%81

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

Ecosystem influence

Dependent repositoriesest.30%100
Quality-weighted dependentsest.20%65
Documentation citationsest.15%71
Contributor overlapest.15%61
Registry adoptionest.10%73
Topic centralityest.10%100

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