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 medialab/xan got a first human reply in a median of 11.1 hours (17 pull requests, 19 April to 16 October 2026); 9% got none within 14 days. It ranks 1,363 of 3,219 overall. For first-time contributors it ranks 522 of 1,525 (the top 35%).

Key facts
Rank1,363 of 3,219
Score52.41
TierC
Median first reply11.1 hours
14-day no-reply share9%
First-timer rank522 of 1,525
EcosystemRust
Window19 April to 16 October 2026

Composite

Rank
1,363 of 3,219
Score
52.41
Tier
C
Coverage
92% · Ceiling A
Quadrant
Nursery

Coordinates: leverage 36.0 (coverage 100%), friction 31.5 (coverage 85%)

Five pillars

Score out of 100, and how much of the pillar was measured
PillarScoreCoverage
Responsiveness85.375%
Criticality25.6100%
Governance50.5100%
Rigor43.8100%
Accessibility53.585%

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.9.1%81.81120 April to 17 October 2026primaryraw/pr_window/medialab__xan.json
First-timer Merge RateShare of first-time outside authors' decided pull requests that were merged.60.0%75.05—primaryraw/author_history/medialab__xan.json
Time to First ResponseMedian hours from an outside pull request opening to its first substantive human reply.11.1 hours (0.5 days)100.01719 April to 16 October 2026primaryraw/pr_window/medialab__xan.json
Time to Merge (p90)Hours within which 90% of merged outside pull requests were merged.168.9 hours (7 days)66.81619 April to 16 October 2026primaryraw/pr_window/medialab__xan.json

Criticality

ParameterValueScoreCountWindowSource
DependentsPackages in the registry that depend on this project, counted once each.016.5——primaryraw/dependents/medialab__xan.json
Monthly DownloadsDownloads from the package registry in a month.515 downloads a month21.3——primaryraw/downloads/crates__xan.json
OpenSSF CriticalityOpenSSF criticality score from 0 to 1, computed from the project's public activity signals.0.390239.0——primaryraw/github_meta/medialab__xan.json

Governance

ParameterValueScoreCountWindowSource
Elephant FactorThe fewest organisations that account for half of the last year's commits.125.0895—primaryraw/commits_365d/medialab__xan.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/medialab__xan.json
Promotion LadderHow openly a contributor can become a maintainer, from closed to verified.No written path to becoming a maintainer40.0——primaryraw/governance/medialab__xan.json

Rigor

ParameterValueScoreCountWindowSource
AI Policy PostureWhether the project has a written policy on AI-assisted contributions.No written AI policy40.0——primaryraw/governance/medialab__xan.json
Pipeline DefensesHow well the project's build and review pipeline defends against bad changes, 0 to 100.4040.016—proxy:review_ciraw/pr_window/medialab__xan.json
Substantive Review RateShare of decided pull requests that received a substantive review.42.1%52.61919 April to 16 October 2026primaryraw/pr_window/medialab__xan.json

Accessibility

ParameterValueScoreCountWindowSource
Developer ExperienceDeveloper experience, 0 to 100: half CI run time, half setup signals.7070.030—primaryraw/actions_runs/medialab__xan.json
Newcomer ConversionShare of first-time authors whose first pull request merged within 180 days.60.0%100.05—primaryraw/author_history/medialab__xan.json
Newcomer Issue SupplyOpen, unassigned, up-to-date issues marked for newcomers.00.0——primaryraw/gfi/medialab__xan.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
Balanced1,363 of 3,21952.41CRated
First-timer522 of 1,52560.42BRated
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-assisted1,806 of 3,69650.43CRated

Integrity

Snapshot
2026-10-17
Raw hash
48bdea34775568cb9d1fe2e343a4979f9028ec833ef187f2ab8938534f9518e8

No suspicion flags on this repository.

The full record is in data/2026-10-17/repos/32.json, under the key medialab/xan.

How every number is measured: Porchlamp methodology.

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

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

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