lmcinnes/umap
What happens to a stranger's pull request here, in the Porchlamp snapshot of 14 October 2026.
Outside pull requests to umap got a first human reply in a median of 3.5 hours (32 pull requests, 10 April to 7 October 2026); 30% got none within 14 days. It ranks 624 of 3,833 overall. It is not ranked for first-time contributors: not enough evidence to show under this lens.
Rating
- Score: 61.67
- Coverage: 84% · Ceiling A
- Tier: B
- Quadrant: Sweet Spot
- Ecosystem: PyPI
Five pillars
| Pillar | Score | Coverage |
|---|---|---|
| Responsiveness | 81.4 | 55% |
| Criticality | 69.3 | 100% |
| Governance | 59.3 | 100% |
| Rigor | 31.0 | 100% |
| Accessibility | 50.0 | 70% |
Rank in each lens
| Lens | Standing |
|---|---|
| Balanced | Rank 624 of 3,833 |
| First-timer | Not ranked: Not enough evidence to show under this lens. |
| Career capital | Rank 269 of 823 |
| Senior systems | Not ranked: Fewer than 3 organizations account for most commits (not multi-vendor). |
| AI-assisted | Rank 1,441 of 3,929 |
The measured parameters
| Parameter | Value | Count | Window | What it measures |
|---|---|---|---|---|
| Time to First Response | 3.4643 | 32 | 10 April to 7 October 2026 | Median hours from an outside pull request opening to its first substantive human reply. |
| Decision Rate (90d) | Not shown: Insufficient sample size | — | — | Share of outside pull requests that were merged or closed within 90 days. |
| First-timer Merge Rate | Not shown: Insufficient sample size | — | — | Share of first-time outside authors' decided pull requests that were merged. |
| PR Ghost Rate (14d) | 0.3 | 30 | 16 April to 13 October 2026 | Share of outside pull requests with no maintainer response, merge or close within 14 days. |
| Time to Merge (p90) | 45.0364 | 30 | 10 April to 7 October 2026 | Hours within which 90% of merged outside pull requests were merged. |
| Dependents | 370 | — | — | Packages in the registry that depend on this project, counted once each. |
| OpenSSF Criticality | 0.45 | — | — | OpenSSF criticality score from 0 to 1, computed from the project's public activity signals. |
| Monthly Downloads | 5387966 | — | — | Downloads from the package registry in a month. |
| Legal IP Regime | NONE | — | — | The contributor licence regime: DCO, none, a foundation CLA or a corporate CLA. |
| Elephant Factor | 2 | 145 | — | The fewest organisations that account for half of the last year's commits. |
| Promotion Ladder | AD_HOC | — | — | How openly a contributor can become a maintainer, from closed to verified. |
| Pipeline Defenses | 47.5 | — | — | How well the project's build and review pipeline defends against bad changes, 0 to 100. |
| AI Policy Posture | AD_HOC | — | — | Whether the project has a written policy on AI-assisted contributions. |
| Substantive Review Rate | 0 | 36 | 10 April to 7 October 2026 | Share of decided pull requests that received a substantive review. |
| Newcomer Issue Supply | 0 | — | — | Open, unassigned, up-to-date issues marked for newcomers. |
| Newcomer Conversion | 0.8 | 5 | — | Share of first-time authors whose first pull request merged within 180 days. |
| Newcomer Return Rate | Not shown: Insufficient sample size | — | — | Share of those merged first-time authors who sent a second pull request within 90 days. |
| Developer Experience | Not shown: Insufficient sample size | — | — | Developer experience, 0 to 100: half CI run time, half setup signals. |
Similar projects
The ranked projects nearest this one in the same ecosystem.
- django-commons/django-debug-toolbar (rank 608)
- nextlevelbuilder/ui-ux-pro-max-skill (rank 609)
- vyperlang/vyper (rank 613)
- python-pillow/Pillow (rank 635)
- LMCache/LMCache (rank 637)
Evidence
- Snapshot 2026-10-14, data as of 13 October 2026.
- Record hash:
4cd0899af2d7269042e1071d66aacfd5361d808260af68c293ef9910a065da43 - The full record is in data/2026-10-14/repos/f7.json, under the key
lmcinnes/umap. - How every number is measured: Porchlamp methodology.
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