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 parca-dev/parca got a first human reply in a median of 1.3 hours (18 pull requests, 19 April to 16 October 2026); 23% got none within 14 days. It ranks 1,036 of 3,219 overall. For first-time contributors it ranks 289 of 1,525 (the top 19%).

Key facts
Rank1,036 of 3,219
Score55.05
TierB
Median first reply1.3 hours
14-day no-reply share23%
First-timer rank289 of 1,525
EcosystemJavaScript
Window19 April to 16 October 2026

Composite

Rank
1,036 of 3,219
Score
55.05
Tier
B
Coverage
95% · Full
Quadrant
Nursery

Coordinates: leverage 37.0 (coverage 100%), friction 27.9 (coverage 90%)

Five pillars

Score out of 100, and how much of the pillar was measured
PillarScoreCoverage
Responsiveness80.780%
Criticality30.6100%
Governance59.3100%
Rigor32.7100%
Accessibility69.8100%

The measured parameters

Responsiveness

ParameterValueScoreCountWindowSource
Decision Rate (90d)Share of outside pull requests that were merged or closed within 90 days.58.3%72.91219 April to 18 July 2026primaryraw/pr_window/parca-dev__parca.json
PR Ghost Rate (14d)Share of outside pull requests with no maintainer response, merge or close within 14 days.22.6%54.83120 April to 17 October 2026primaryraw/pr_window/parca-dev__parca.json
First-timer Merge RateShare of first-time outside authors' decided pull requests that were merged.Not shown: Insufficient sample size
Time to First ResponseMedian hours from an outside pull request opening to its first substantive human reply.1.3 hours (0.1 days)100.01819 April to 16 October 2026primaryraw/pr_window/parca-dev__parca.json
Time to Merge (p90)Hours within which 90% of merged outside pull requests were merged.87.9 hours (3.7 days)80.85119 April to 16 October 2026primaryraw/pr_window/parca-dev__parca.json

Criticality

ParameterValueScoreCountWindowSource
DependentsPackages in the registry that depend on this project, counted once each.731.2——primaryraw/dependents/parca-dev__parca.json
Monthly DownloadsDownloads from the package registry in a month.9,762 downloads a month18.0——primaryraw/downloads/npm__parca.json
OpenSSF CriticalityOpenSSF criticality score from 0 to 1, computed from the project's public activity signals.0.389539.0——primaryraw/github_meta/parca-dev__parca.json

Governance

ParameterValueScoreCountWindowSource
Elephant FactorThe fewest organisations that account for half of the last year's commits.250.0234—primaryraw/commits_365d/parca-dev__parca.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/parca-dev__parca.json
Promotion LadderHow openly a contributor can become a maintainer, from closed to verified.No written path to becoming a maintainer40.0——primaryraw/governance/parca-dev__parca.json

Rigor

ParameterValueScoreCountWindowSource
AI Policy PostureWhether the project has a written policy on AI-assisted contributions.No written AI policy40.0——primaryraw/governance/parca-dev__parca.json
Pipeline DefensesHow well the project's build and review pipeline defends against bad changes, 0 to 100.5050.0——primaryraw/scorecard/parca-dev__parca.json
Substantive Review RateShare of decided pull requests that received a substantive review.1.9%2.45219 April to 16 October 2026primaryraw/pr_window/parca-dev__parca.json

Accessibility

ParameterValueScoreCountWindowSource
Developer ExperienceDeveloper experience, 0 to 100: half CI run time, half setup signals.62.041762.06—primaryraw/actions_runs/parca-dev__parca.json
Newcomer ConversionShare of first-time authors whose first pull request merged within 180 days.71.4%100.07—primaryraw/author_history/parca-dev__parca.json
Newcomer Issue SupplyOpen, unassigned, up-to-date issues marked for newcomers.330.0——primaryraw/gfi/parca-dev__parca.json
Newcomer Return RateShare of those merged first-time authors who sent a second pull request within 90 days.60.0%100.05—primaryraw/author_history/parca-dev__parca.json

Persona view

PersonaRankScoreTierStatus
Balanced1,036 of 3,21955.05BRated
First-timer289 of 1,52564.40BRated
Career capitalThis repository's production-criticality signal is not yet high enough for career-capital ranking.
Senior systemsFewer than 3 organizations account for most commits (not multi-vendor).
AI-assisted1,920 of 3,69649.58CRated

Integrity

Snapshot
2026-10-17
Raw hash
a8dd1c151d145cfc936f7e49c2d710ed6641a30d8623a1618b4ae0bce9c86951

No suspicion flags on this repository.

The full record is in data/2026-10-17/repos/1c.json, under the key parca-dev/parca.

How every number is measured: Porchlamp methodology.

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

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

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