KhronosGroup/Vulkan-Samples
What happens to a stranger's pull request here, in the Porchlamp snapshot of 17 October 2026.
Outside pull requests to KhronosGroup/Vulkan-Samples got a first human reply in a median of 7.1 days (29 pull requests, 19 April to 16 October 2026); 35% got none within 14 days. It ranks 2,591 of 3,219 overall. For first-time contributors it ranks 1,424 of 1,525 (the bottom 7%).
| Rank | 2,591 of 3,219 |
|---|---|
| Score | 41.23 |
| Tier | C |
| Median first reply | 7.1 days (170.4 hours) |
| 14-day no-reply share | 35% |
| First-timer rank | 1,424 of 1,525 |
| Ecosystem | C and C++ |
| Window | 19 April to 16 October 2026 |
Composite
- Rank
- 2,591 of 3,219
- Score
- 41.23
- Tier
- C
- Coverage
- 94% · Ceiling A
- Quadrant
- Graveyard
Coordinates: leverage 43.2 (coverage 100%), friction 61.6 (coverage 88%)
Five pillars
| Pillar | Score | Coverage |
|---|---|---|
| Responsiveness | 35.1 | 75% |
| Criticality | 40.6 | 100% |
| Governance | 38.3 | 100% |
| Rigor | 50.7 | 100% |
| Accessibility | 47.0 | 100% |
The measured parameters
Responsiveness
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| 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. | 35.5% | 29.0 | 31 | 20 April to 17 October 2026 | primaryraw/pr_window/KhronosGroup__Vulkan-Samples.json |
| First-timer Merge RateShare of first-time outside authors' decided pull requests that were merged. | 83.3% | 100.0 | 6 | — | primaryraw/author_history/KhronosGroup__Vulkan-Samples.json |
| Time to First ResponseMedian hours from an outside pull request opening to its first substantive human reply. | 170.4 hours (7.1 days) | 4.3 | 29 | 19 April to 16 October 2026 | primaryraw/pr_window/KhronosGroup__Vulkan-Samples.json |
| Time to Merge (p90)Hours within which 90% of merged outside pull requests were merged. | 1513.5 hours (63.1 days) | 6.7 | 21 | 19 April to 16 October 2026 | primaryraw/pr_window/KhronosGroup__Vulkan-Samples.json |
Criticality
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| DependentsPackages in the registry that depend on this project, counted once each. | Not shown: Not applicable | ||||
| 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. | 0.406 | 40.6 | — | — | proxy:no_dependents_signalraw/github_meta/KhronosGroup__Vulkan-Samples.json |
Governance
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Elephant FactorThe fewest organisations that account for half of the last year's commits. | 2 | 50.0 | 105 | — | primaryraw/commits_365d/KhronosGroup__Vulkan-Samples.json |
| Legal IP RegimeThe contributor licence regime: DCO, none, a foundation CLA or a corporate CLA. | Company CLA | 25.0 | — | — | primaryraw/governance/KhronosGroup__Vulkan-Samples.json |
| Promotion LadderHow openly a contributor can become a maintainer, from closed to verified. | No written path to becoming a maintainer | 40.0 | — | — | primaryraw/governance/KhronosGroup__Vulkan-Samples.json |
Rigor
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| AI Policy PostureWhether the project has a written policy on AI-assisted contributions. | No written AI policy | 40.0 | — | — | primaryraw/governance/KhronosGroup__Vulkan-Samples.json |
| Pipeline DefensesHow well the project's build and review pipeline defends against bad changes, 0 to 100. | 70 | 70.0 | — | — | primaryraw/scorecard/KhronosGroup__Vulkan-Samples.json |
| Substantive Review RateShare of decided pull requests that received a substantive review. | 28.6% | 35.7 | 21 | 19 April to 16 October 2026 | primaryraw/pr_window/KhronosGroup__Vulkan-Samples.json |
Accessibility
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Developer ExperienceDeveloper experience, 0 to 100: half CI run time, half setup signals. | 20 | 20.0 | 22 | — | primaryraw/actions_runs/KhronosGroup__Vulkan-Samples.json |
| Newcomer ConversionShare of first-time authors whose first pull request merged within 180 days. | 90.9% | 100.0 | 11 | — | primaryraw/author_history/KhronosGroup__Vulkan-Samples.json |
| Newcomer Issue SupplyOpen, unassigned, up-to-date issues marked for newcomers. | 0 | 0.0 | — | — | primaryraw/gfi/KhronosGroup__Vulkan-Samples.json |
| Newcomer Return RateShare of those merged first-time authors who sent a second pull request within 90 days. | 30.0% | 60.0 | 10 | — | primaryraw/author_history/KhronosGroup__Vulkan-Samples.json |
Persona view
| Persona | Rank | Score | Tier | Status |
|---|---|---|---|---|
| Balanced | 2,591 of 3,219 | 41.23 | C | Rated |
| First-timer | 1,424 of 1,525 | 41.25 | C | Rated |
| Career capital | This repository's production-criticality signal is not yet high enough for career-capital ranking. | |||
| Senior systems | Fewer than 3 organizations account for most commits (not multi-vendor). | |||
| AI-assisted | 2,744 of 3,696 | 43.33 | C | Rated |
Integrity
- Snapshot
- 2026-10-17
- Raw hash
- 0bd128a1c9efab433d56e0c7b1692782f5853d435bb99b5f8e09f06716fdcf77
No suspicion flags on this repository.
The full record is in data/2026-10-17/repos/6c.json, under the key KhronosGroup/Vulkan-Samples.
How every number is measured: Porchlamp methodology.
Open an issue about this record and say what looks wrong.
Porchlamp (2026). KhronosGroup/Vulkan-Samples. Snapshot 2026-10-17. https://porchlamp.org/projects/khronosgroup/vulkan-samples/. CC BY 4.0.
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