Signals

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delta-io/delta

Establishedrank #203

An open-source storage framework that enables building a Lakehouse architecture with compute engines including Spark, PrestoDB, Flink, Trino, and Hive and APIs

9k+39 · 7d 2.2k 152est. Apache-2.0Scalapushed 2h ago

Compare View on GitHub

Composite

conf 65%

Momentum

conf 60%

Vitality (PVI)

conf 67%

Community

conf 60%

Security & maint.

conf 85%

Ecosystem influence

conf 60%

Opportunity

conf 60%

Breakout · 7d

45%

conf 71%

Executive summary

delta is currently classified as established with a composite score of 65/100. Momentum (54) and vitality (69) are aligned — growth is backed by sustained maintenance. Estimated 7-day gain of 39 stars against a 9k-star base. Risk is assessed as low; the interpretable model puts its probability of entering the top trend cohort within 7 days at 45%.

90-day trajectory

+168 · 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%44

Star accelerationest.15%50

Fork velocityest.10%32

Contributor growthest.10%89

Issue activity growthest.10%96

PR activity growthest.10%52

External mention velocityest.10%4

Release event impactest.5%89

Trending-rank persistenceest.5%65

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

Project Vitality Index

Commit consistency20%100

Release cadenceest.15%67

PR responsivenessest.15%48

Issue responsivenessest.15%43

Contributor diversityest.10%81

Maintainer continuityest.10%88

Documentation qualityest.5%60

Dependency freshnessest.5%54

Security hygieneest.5%49

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

Security & maintenance

Release recency25%100

License clarity20%92

Maintenance status25%100

Dependency stalenessest.15%47

Bus factorest.15%91

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

Ecosystem influence

Dependent repositoriesest.30%83

Quality-weighted dependentsest.20%57

Documentation citationsest.15%39

Contributor overlapest.15%66

Registry adoptionest.10%43

Topic centralityest.10%100

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