microsoft/react-native-windows
What happens to a stranger's pull request here, in the Porchlamp snapshot of 17 October 2026.
Outside pull requests to microsoft/react-native-windows got a first human reply in a median of 7.8 hours (258 pull requests, 11 April to 8 October 2026); 14% got none within 14 days. It ranks 864 of 3,219 overall. It is not ranked for first-time contributors: not enough evidence to show under this lens.
| Rank | 864 of 3,219 |
|---|---|
| Score | 56.42 |
| Tier | B |
| Median first reply | 7.8 hours |
| 14-day no-reply share | 14% |
| First-timer rank | Not enough evidence to show under this lens. |
| Ecosystem | C and C++ |
| Window | 11 April to 8 October 2026 |
Composite
- Rank
- 864 of 3,219
- Score
- 56.42
- Tier
- B
- Coverage
- 88% · Ceiling A
- Quadrant
- Sweet Spot
Coordinates: leverage 52.8 (coverage 100%), friction 37.0 (coverage 80%)
Five pillars
| Pillar | Score | Coverage |
|---|---|---|
| Responsiveness | 90.8 | 80% |
| Criticality | 47.6 | 100% |
| Governance | 47.0 | 100% |
| Rigor | 65.5 | 100% |
| Accessibility | 17.4 | 50% |
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. | 95.5% | 100.0 | 111 | 11 April to 10 July 2026 | primaryraw/pr_window/microsoft__react-native-windows.json |
| PR Ghost Rate (14d)Share of outside pull requests with no maintainer response, merge or close within 14 days. | 13.8% | 72.3 | 159 | 20 April to 17 October 2026 | primaryraw/pr_window/microsoft__react-native-windows.json |
| First-timer Merge RateShare of first-time outside authors' decided pull requests that were merged. | Not shown: Collector failure | ||||
| Time to First ResponseMedian hours from an outside pull request opening to its first substantive human reply. | 7.8 hours (0.3 days) | 100.0 | 258 | 11 April to 8 October 2026 | primaryraw/pr_window/microsoft__react-native-windows.json |
| Time to Merge (p90)Hours within which 90% of merged outside pull requests were merged. | 198.3 hours (8.3 days) | 67.6 | 245 | 11 April to 8 October 2026 | primaryraw/pr_window/microsoft__react-native-windows.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. | 0.4756 | 47.6 | — | — | proxy:no_dependents_signalraw/github_meta/microsoft__react-native-windows.json |
Governance
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Elephant FactorThe fewest organisations that account for half of the last year's commits. | 3 | 75.0 | 307 | — | primaryraw/commits_365d/microsoft__react-native-windows.json |
| Legal IP RegimeThe contributor licence regime: DCO, none, a foundation CLA or a corporate CLA. | Company CLA | 25.0 | — | — | primaryraw/governance/microsoft__react-native-windows.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/microsoft__react-native-windows.json |
Rigor
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| AI Policy PostureWhether the project has a written policy on AI-assisted contributions. | Written AI policy | 95.0 | — | — | primaryraw/governance/microsoft__react-native-windows.json |
| Pipeline DefensesHow well the project's build and review pipeline defends against bad changes, 0 to 100. | 87.5 | 87.5 | — | — | primaryraw/scorecard/microsoft__react-native-windows.json |
| Substantive Review RateShare of decided pull requests that received a substantive review. | 5.4% | 6.7 | 355 | 11 April to 8 October 2026 | primaryraw/pr_window/microsoft__react-native-windows.json |
Accessibility
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Developer ExperienceDeveloper experience, 0 to 100: half CI run time, half setup signals. | 58.1458 | 58.1 | 30 | — | primaryraw/actions_runs/microsoft__react-native-windows.json |
| Newcomer ConversionShare of first-time authors whose first pull request merged within 180 days. | Not shown: Collector failure | ||||
| Newcomer Issue SupplyOpen, unassigned, up-to-date issues marked for newcomers. | 0 | 0.0 | — | — | primaryraw/gfi/microsoft__react-native-windows.json |
| Newcomer Return RateShare of those merged first-time authors who sent a second pull request within 90 days. | Not shown: Collector failure | ||||
Persona view
| Persona | Rank | Score | Tier | Status |
|---|---|---|---|---|
| Balanced | 864 of 3,219 | 56.42 | B | Rated |
| First-timer | Not enough evidence to show under this lens. | |||
| Career capital | This repository's production-criticality signal is not yet high enough for career-capital ranking. | |||
| Senior systems | 560 of 1,276 | 55.98 | B | Rated |
| AI-assisted | 691 of 3,696 | 59.38 | B | Rated |
Integrity
- Snapshot
- 2026-10-17
- Raw hash
- 90149a1fab5e326a87537c74ae48a1c30e1f9c21f96403ceb98d6400875c2f89
No suspicion flags on this repository.
The full record is in data/2026-10-17/repos/be.json, under the key microsoft/react-native-windows.
How every number is measured: Porchlamp methodology.
Open an issue about this record and say what looks wrong.
Porchlamp (2026). microsoft/react-native-windows. Snapshot 2026-10-17. https://porchlamp.org/projects/microsoft/react-native-windows/. CC BY 4.0.
Similar projects
The ranked projects nearest this one in the same ecosystem.
- halide/Halide (rank 857)
- chromiumembedded/cef (rank 865)
- mpv-player/mpv (rank 866)
- endless-sky/endless-sky (rank 871)
- qbittorrent/qBittorrent (rank 873)