PorchlampFind the projects that leave the light on.2026-10-17

What happens to a stranger's pull request here, in the Porchlamp snapshot of 17 October 2026.

Outside pull requests to vavr-io/vavr got a first human reply in a median of 2.2 days (39 pull requests, 19 April to 16 October 2026); 38% got none within 14 days. It ranks 1,954 of 3,219 overall. For first-time contributors it ranks 1,406 of 1,525 (the bottom 8%).

Key facts
Rank1,954 of 3,219
Score47.49
TierC
Median first reply2.2 days (51.7 hours)
14-day no-reply share38%
First-timer rank1,406 of 1,525
EcosystemJava
Window19 April to 16 October 2026

Composite

Rank
1,954 of 3,219
Score
47.49
Tier
C
Coverage
86% · Ceiling A
Quadrant
Crucible

Coordinates: leverage 52.3 (coverage 100%), friction 54.3 (coverage 78%)

Five pillars

Score out of 100, and how much of the pillar was measured
PillarScoreCoverage
Responsiveness52.675%
Criticality61.6100%
Governance50.5100%
Rigor37.9100%
Accessibility21.050%

The measured parameters

Responsiveness

ParameterValueScoreCountWindowSource
Decision Rate (90d)Share of outside pull requests that were merged or closed within 90 days.Not shown: Insufficient sample size
PR Ghost Rate (14d)Share of outside pull requests with no maintainer response, merge or close within 14 days.38.5%23.11320 April to 17 October 2026primaryraw/pr_window/vavr-io__vavr.json
First-timer Merge RateShare of first-time outside authors' decided pull requests that were merged.100.0%100.05—primaryraw/author_history/vavr-io__vavr.json
Time to First ResponseMedian hours from an outside pull request opening to its first substantive human reply.51.7 hours (2.2 days)47.33919 April to 16 October 2026primaryraw/pr_window/vavr-io__vavr.json
Time to Merge (p90)Hours within which 90% of merged outside pull requests were merged.797.7 hours (33.2 days)18.34219 April to 16 October 2026primaryraw/pr_window/vavr-io__vavr.json

Criticality

ParameterValueScoreCountWindowSource
DependentsPackages in the registry that depend on this project, counted once each.68175.2——primaryraw/dependents/vavr-io__vavr.json
Monthly DownloadsDownloads from the package registry in a month.Not shown: Not applicable
OpenSSF CriticalityOpenSSF criticality score from 0 to 1, computed from the project's public activity signals.0.460646.1——primaryraw/github_meta/vavr-io__vavr.json

Governance

ParameterValueScoreCountWindowSource
Elephant FactorThe fewest organisations that account for half of the last year's commits.125.0133—primaryraw/commits_365d/vavr-io__vavr.json
Legal IP RegimeThe contributor licence regime: DCO, none, a foundation CLA or a corporate CLA.No CLA or sign-off found85.0——primaryraw/governance/vavr-io__vavr.json
Promotion LadderHow openly a contributor can become a maintainer, from closed to verified.No written path to becoming a maintainer40.0——primaryraw/governance/vavr-io__vavr.json

Rigor

ParameterValueScoreCountWindowSource
AI Policy PostureWhether the project has a written policy on AI-assisted contributions.No written AI policy40.0——primaryraw/governance/vavr-io__vavr.json
Pipeline DefensesHow well the project's build and review pipeline defends against bad changes, 0 to 100.62.562.5——primaryraw/scorecard/vavr-io__vavr.json
Substantive Review RateShare of decided pull requests that received a substantive review.2.3%2.94319 April to 16 October 2026primaryraw/pr_window/vavr-io__vavr.json

Accessibility

ParameterValueScoreCountWindowSource
Developer ExperienceDeveloper experience, 0 to 100: half CI run time, half setup signals.7070.030—primaryraw/actions_runs/vavr-io__vavr.json
Newcomer ConversionShare of first-time authors whose first pull request merged within 180 days.Not shown: Insufficient sample size
Newcomer Issue SupplyOpen, unassigned, up-to-date issues marked for newcomers.00.0——primaryraw/gfi/vavr-io__vavr.json
Newcomer Return RateShare of those merged first-time authors who sent a second pull request within 90 days.Not shown: Insufficient sample size

Persona view

PersonaRankScoreTierStatus
Balanced1,954 of 3,21947.49CRated
First-timer1,406 of 1,52542.25CRated
Career capital719 of 79847.65CRated
Senior systemsFewer than 3 organizations account for most commits (not multi-vendor).
AI-assisted2,462 of 3,69645.78CRated

Integrity

Snapshot
2026-10-17
Raw hash
af98a57acfc2045749192637a0efdac90948eb18a9cc9cfbc483ecf786ba2f1b

No suspicion flags on this repository.

The full record is in data/2026-10-17/repos/e5.json, under the key vavr-io/vavr.

How every number is measured: Porchlamp methodology.

Open an issue about this record and say what looks wrong.

Porchlamp (2026). vavr-io/vavr. Snapshot 2026-10-17. https://porchlamp.org/projects/vavr-io/vavr/. CC BY 4.0.

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