rust-random/rand
What happens to a stranger's pull request here, in the Porchlamp snapshot of 14 October 2026.
Outside pull requests to rand got a first human reply in a median of 9.6 hours (30 pull requests, 10 April to 7 October 2026); 7% got none within 14 days. It ranks 398 of 3,833 overall and 657 of 1,968 for first-time contributors.
Rating
- Score: 63.88
- Coverage: 88% · Ceiling A
- Tier: B
- Quadrant: Sweet Spot
- Ecosystem: crates.io (Rust)
Five pillars
| Pillar | Score | Coverage |
|---|---|---|
| Responsiveness | 80.4 | 75% |
| Criticality | 77.0 | 75% |
| Governance | 50.5 | 100% |
| Rigor | 53.7 | 100% |
| Accessibility | 42.5 | 100% |
Rank in each lens
| Lens | Standing |
|---|---|
| Balanced | Rank 398 of 3,833 |
| First-timer | Rank 657 of 1,968 |
| Career capital | Not ranked: Not enough evidence to show under this lens. |
| Senior systems | Not ranked: Fewer than 3 organizations account for most commits (not multi-vendor). |
| AI-assisted | Rank 540 of 3,929 |
The measured parameters
| Parameter | Value | Count | Window | What it measures |
|---|---|---|---|---|
| Time to First Response | 9.6199 | 30 | 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 | 0.5 | 8 | — | Share of first-time outside authors' decided pull requests that were merged. |
| PR Ghost Rate (14d) | 0.0714 | 14 | 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) | 235.0553 | 18 | 10 April to 7 October 2026 | Hours within which 90% of merged outside pull requests were merged. |
| Dependents | 15477 | — | — | Packages in the registry that depend on this project, counted once each. |
| OpenSSF Criticality | 0.5257 | — | — | OpenSSF criticality score from 0 to 1, computed from the project's public activity signals. |
| Monthly Downloads | Not shown: Third-party data unavailable | — | — | 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 | 1 | 166 | — | 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 | 80 | — | — | 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 | 0.2581 | 31 | 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 | 0.7143 | 7 | — | Share of first-time authors whose first pull request merged within 180 days. |
| Newcomer Return Rate | 0 | 5 | — | Share of those merged first-time authors who sent a second pull request within 90 days. |
| Developer Experience | 50 | 30 | — | Developer experience, 0 to 100: half CI run time, half setup signals. |
Similar projects
The ranked projects nearest this one in the same ecosystem.
- dmtrKovalenko/fff (rank 357)
- pola-rs/polars (rank 376)
- lance-format/lance (rank 409)
- RustAudio/cpal (rank 427)
- dbt-labs/dbt (rank 431)
Evidence
- Snapshot 2026-10-14, data as of 13 October 2026.
- Record hash:
8ccfd67bb8bdbbcd5a7222f33211fa702da9ea72fac25826a26d8febba3be179 - The full record is in data/2026-10-14/repos/fc.json, under the key
rust-random/rand. - How every number is measured: Porchlamp methodology.
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