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thoughtbot/factory_bot

Decliningrank #191

A library for setting up Ruby objects as test data.

8.2k+8 · 7d 2.6k 175est. MITRubypushed 6m ago
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Composite

65

conf 65%

Momentum

39

conf 60%

Vitality (PVI)

75

conf 67%

Community

71

conf 60%

Security & maint.

91

conf 85%

Ecosystem influence

68

conf 60%

Opportunity

55

conf 60%

Breakout · 7d

9%

conf 71%

Executive summary

factory_bot is currently classified as declining with a composite score of 65/100. Momentum (39) and vitality (75) are aligned — growth is backed by sustained maintenance. Estimated 7-day gain of 8 stars against a 8.2k-star base. Risk is assessed as low; the interpretable model puts its probability of entering the top trend cohort within 7 days at 9%.

90-day trajectory

+51 · 30d
2026-07-092026-10-06

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%26
Star accelerationest.15%34
Fork velocityest.10%11
Contributor growthest.10%67
Issue activity growthest.10%51
PR activity growthest.10%76
External mention velocityest.10%1
Release event impactest.5%82
Trending-rank persistenceest.5%48

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

Project Vitality Index

Commit consistency20%100
Release cadenceest.15%81
PR responsivenessest.15%50
Issue responsivenessest.15%64
Contributor diversityest.10%83
Maintainer continuityest.10%83
Documentation qualityest.5%80
Dependency freshnessest.5%60
Security hygieneest.5%44

Model tn-interpretable-1.0.0 · confidence 67% · coverage 100%

Security & maintenance

Release recency25%100
License clarity20%92
Maintenance status25%100
Dependency stalenessest.15%52
Bus factorest.15%100

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

Ecosystem influence

Dependent repositoriesest.30%84
Quality-weighted dependentsest.20%64
Documentation citationsest.15%39
Contributor overlapest.15%60
Registry adoptionest.10%56
Topic centralityest.10%100

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