krahets/hello-algo
What happens to a stranger's pull request here, in the Porchlamp snapshot of 17 October 2026.
For krahets/hello-algo, the reply time and the share with no reply within 14 days both have too small a sample to measure (0 and 8 pull requests counted; 10 needed). It ranks 2,415 of 3,219 overall. For first-time contributors it ranks 1,377 of 1,525 (the bottom 10%).
| Rank | 2,415 of 3,219 |
|---|---|
| Score | 43.18 |
| Tier | C |
| Median first reply | — |
| 14-day no-reply share | — |
| First-timer rank | 1,377 of 1,525 |
| Ecosystem | Java |
| Window | — |
Composite
- Rank
- 2,415 of 3,219
- Score
- 43.18
- Tier
- C
- Coverage
- 69% · Ceiling B
- Quadrant
- Graveyard
Coordinates: leverage 40.0 (coverage 73%), friction 52.0 (coverage 65%)
Five pillars
| Pillar | Score | Coverage |
|---|---|---|
| Responsiveness | 52.2 | 30% |
| Criticality | 40.1 | 47% |
| Governance | 50.5 | 100% |
| Rigor | 32.7 | 100% |
| Accessibility | 34.0 | 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. | Not shown: Insufficient sample size | ||||
| First-timer Merge RateShare of first-time outside authors' decided pull requests that were merged. | 62.5% | 78.1 | 16 | — | primaryraw/author_history/krahets__hello-algo.json |
| Time to First ResponseMedian hours from an outside pull request opening to its first substantive human reply. | Not shown: Insufficient sample size | ||||
| Time to Merge (p90)Hours within which 90% of merged outside pull requests were merged. | 3681.9 hours (153.4 days) | 0.3 | 7 | 17 April to 14 October 2026 | primaryraw/pr_window/krahets__hello-algo.json |
Criticality
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| DependentsPackages in the registry that depend on this project, counted once each. | Not shown: Third-party data unavailable | ||||
| 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. | 0.4013 | 40.1 | — | — | proxy:no_dependents_signalraw/github_meta/krahets__hello-algo.json |
Governance
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Elephant FactorThe fewest organisations that account for half of the last year's commits. | 1 | 25.0 | 43 | — | primaryraw/commits_365d/krahets__hello-algo.json |
| Legal IP RegimeThe contributor licence regime: DCO, none, a foundation CLA or a corporate CLA. | No CLA or sign-off found | 85.0 | — | — | primaryraw/governance/krahets__hello-algo.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/krahets__hello-algo.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/krahets__hello-algo.json |
| Pipeline DefensesHow well the project's build and review pipeline defends against bad changes, 0 to 100. | 51.7895 | 51.8 | 19 | — | proxy:review_ciraw/pr_window/krahets__hello-algo.json |
| Substantive Review RateShare of decided pull requests that received a substantive review. | 0.0% | 0.0 | 12 | 17 April to 14 October 2026 | primaryraw/pr_window/krahets__hello-algo.json |
Accessibility
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Developer ExperienceDeveloper experience, 0 to 100: half CI run time, half setup signals. | 70 | 70.0 | 17 | — | primaryraw/actions_runs/krahets__hello-algo.json |
| Newcomer ConversionShare of first-time authors whose first pull request merged within 180 days. | 25.0% | 50.0 | 12 | — | primaryraw/author_history/krahets__hello-algo.json |
| Newcomer Issue SupplyOpen, unassigned, up-to-date issues marked for newcomers. | 0 | 0.0 | — | — | primaryraw/gfi/krahets__hello-algo.json |
| Newcomer Return RateShare of those merged first-time authors who sent a second pull request within 90 days. | 20.0% | 40.0 | 5 | — | primaryraw/author_history/krahets__hello-algo.json |
Persona view
| Persona | Rank | Score | Tier | Status |
|---|---|---|---|---|
| Balanced | 2,415 of 3,219 | 43.18 | C | Rated |
| First-timer | 1,377 of 1,525 | 43.32 | 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 | 3,003 of 3,696 | 40.89 | C | Rated |
Integrity
- Snapshot
- 2026-10-17
- Raw hash
- d49316202bd7430022106e2d93ab5c1329f2109d47c71132ef8dc394f2404272
closed_unread
The full record is in data/2026-10-17/repos/84.json, under the key krahets/hello-algo.
How every number is measured: Porchlamp methodology.
Open an issue about this record and say what looks wrong.
Porchlamp (2026). krahets/hello-algo. Snapshot 2026-10-17. https://porchlamp.org/projects/krahets/hello-algo/. CC BY 4.0.
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