kubernetes-sigs/cluster-api
What happens to a stranger's pull request here, in the Porchlamp snapshot of 14 October 2026.
Outside pull requests to cluster-api got a first human reply in a median of 13.8 hours (92 pull requests, 11 April to 8 October 2026); 9% got none within 14 days. It ranks 18 of 3,833 overall and 8 of 1,968 for first-time contributors.
Rating
- Score: 75.38
- Coverage: 93% · Ceiling A
- Tier: A (capped)
- Quadrant: Sweet Spot
- Ecosystem: Go
Capped: this tier can go no higher until more of the project's inputs are measured. It reflects how much data there is, not how good the score is.
Five pillars
| Pillar | Score | Coverage |
|---|---|---|
| Responsiveness | 93.3 | 100% |
| Criticality | 71.1 | 100% |
| Governance | 64.5 | 100% |
| Rigor | 46.9 | 100% |
| Accessibility | 95.5 | 50% |
Rank in each lens
| Lens | Standing |
|---|---|
| Balanced | Rank 18 of 3,833 |
| First-timer | Rank 8 of 1,968 |
| Career capital | Rank 7 of 823 |
| Senior systems | Rank 78 of 1,206 |
| AI-assisted | Rank 126 of 3,929 |
The measured parameters
| Parameter | Value | Count | Window | What it measures |
|---|---|---|---|---|
| Time to First Response | 13.8007 | 92 | 11 April to 8 October 2026 | Median hours from an outside pull request opening to its first substantive human reply. |
| Decision Rate (90d) | 0.9259 | 27 | 11 April to 10 July 2026 | Share of outside pull requests that were merged or closed within 90 days. |
| First-timer Merge Rate | 0.8571 | 7 | — | Share of first-time outside authors' decided pull requests that were merged. |
| PR Ghost Rate (14d) | 0.0934 | 182 | 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) | 132.2139 | 208 | 11 April to 8 October 2026 | Hours within which 90% of merged outside pull requests were merged. |
| Dependents | 622 | — | — | Packages in the registry that depend on this project, counted once each. |
| OpenSSF Criticality | 0.5854 | — | — | OpenSSF criticality score from 0 to 1, computed from the project's public activity signals. |
| Monthly Downloads | Not shown: Not applicable | — | — | Downloads from the package registry in a month. |
| Legal IP Regime | FOUNDATION_CLA | — | — | The contributor licence regime: DCO, none, a foundation CLA or a corporate CLA. |
| Elephant Factor | 3 | 677 | — | 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 | 72.5 | — | — | 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 | 0.1579 | 228 | 11 April to 8 October 2026 | Share of decided pull requests that received a substantive review. |
| Newcomer Issue Supply | 11 | — | — | Open, unassigned, up-to-date issues marked for newcomers. |
| Newcomer Conversion | Not shown: Insufficient sample size | — | — | 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 | 85 | 22 | — | Developer experience, 0 to 100: half CI run time, half setup signals. |
Similar projects
The ranked projects nearest this one in the same ecosystem.
- kedacore/keda (rank 11)
- external-secrets/external-secrets (rank 12)
- moby/moby (rank 20)
- containerd/containerd (rank 24)
- prometheus/client_golang (rank 26)
Evidence
- Snapshot 2026-10-14, data as of 13 October 2026.
- Record hash:
536cacda73366d78e23301fc0192d93408008792c76cb432f173df5ae33040c2 - The full record is in data/2026-10-14/repos/c6.json, under the key
kubernetes-sigs/cluster-api. - How every number is measured: Porchlamp methodology.
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