aeron-io/aeron
What happens to a stranger's pull request here, in the Porchlamp snapshot of 17 October 2026.
Outside pull requests to aeron-io/aeron got a first human reply in a median of 15.2 hours (31 pull requests, 18 April to 15 October 2026); 4% got none within 14 days. It ranks 1,096 of 3,219 overall. For first-time contributors it ranks 569 of 1,525 (the top 38%).
| Rank | 1,096 of 3,219 |
|---|---|
| Score | 54.49 |
| Tier | C |
| Median first reply | 15.2 hours |
| 14-day no-reply share | 4% |
| First-timer rank | 569 of 1,525 |
| Ecosystem | Java |
| Window | 18 April to 15 October 2026 |
Composite
- Rank
- 1,096 of 3,219
- Score
- 54.49
- Tier
- C
- Coverage
- 98% · Full
- Quadrant
- Nursery
Coordinates: leverage 40.9 (coverage 100%), friction 31.6 (coverage 97%)
Five pillars
| Pillar | Score | Coverage |
|---|---|---|
| Responsiveness | 88.0 | 100% |
| Criticality | 46.5 | 100% |
| Governance | 50.5 | 100% |
| Rigor | 25.2 | 100% |
| Accessibility | 46.6 | 85% |
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. | 98.1% | 100.0 | 53 | 18 April to 17 July 2026 | primaryraw/pr_window/aeron-io__aeron.json |
| PR Ghost Rate (14d)Share of outside pull requests with no maintainer response, merge or close within 14 days. | 4.3% | 91.3 | 115 | 20 April to 17 October 2026 | primaryraw/pr_window/aeron-io__aeron.json |
| First-timer Merge RateShare of first-time outside authors' decided pull requests that were merged. | 57.1% | 71.4 | 7 | — | primaryraw/author_history/aeron-io__aeron.json |
| Time to First ResponseMedian hours from an outside pull request opening to its first substantive human reply. | 15.2 hours (0.6 days) | 91.6 | 31 | 18 April to 15 October 2026 | primaryraw/pr_window/aeron-io__aeron.json |
| Time to Merge (p90)Hours within which 90% of merged outside pull requests were merged. | 161.2 hours (6.7 days) | 75.1 | 137 | 18 April to 15 October 2026 | primaryraw/pr_window/aeron-io__aeron.json |
Criticality
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| DependentsPackages in the registry that depend on this project, counted once each. | 38 | 44.3 | — | — | primaryraw/dependents/aeron-io__aeron.json |
| 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. | 0.4898 | 49.0 | — | — | primaryraw/github_meta/aeron-io__aeron.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 | 1,000 | — | primaryraw/commits_365d/aeron-io__aeron.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/aeron-io__aeron.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/aeron-io__aeron.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/aeron-io__aeron.json |
| Pipeline DefensesHow well the project's build and review pipeline defends against bad changes, 0 to 100. | 25.2944 | 25.3 | 137 | — | proxy:review_ciraw/pr_window/aeron-io__aeron.json |
| Substantive Review RateShare of decided pull requests that received a substantive review. | 8.3% | 10.4 | 156 | 18 April to 15 October 2026 | primaryraw/pr_window/aeron-io__aeron.json |
Accessibility
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Developer ExperienceDeveloper experience, 0 to 100: half CI run time, half setup signals. | 30.75 | 30.8 | 29 | — | primaryraw/actions_runs/aeron-io__aeron.json |
| Newcomer ConversionShare of first-time authors whose first pull request merged within 180 days. | 60.0% | 100.0 | 5 | — | primaryraw/author_history/aeron-io__aeron.json |
| Newcomer Issue SupplyOpen, unassigned, up-to-date issues marked for newcomers. | 0 | 0.0 | — | — | primaryraw/gfi/aeron-io__aeron.json |
| Newcomer Return RateShare of those merged first-time authors who sent a second pull request within 90 days. | Not shown: Insufficient sample size | ||||
Persona view
| Persona | Rank | Score | Tier | Status |
|---|---|---|---|---|
| Balanced | 1,096 of 3,219 | 54.49 | C | Rated |
| First-timer | 569 of 1,525 | 59.52 | B | 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 | 2,164 of 3,696 | 47.96 | C | Rated |
Integrity
- Snapshot
- 2026-10-17
- Raw hash
- 67e02277e7a33e8f36bfc3e2adbcbbac7a58e1c090082fc6883601303350b87e
No suspicion flags on this repository.
The full record is in data/2026-10-17/repos/b8.json, under the key aeron-io/aeron.
How every number is measured: Porchlamp methodology.
Open an issue about this record and say what looks wrong.
Porchlamp (2026). aeron-io/aeron. Snapshot 2026-10-17. https://porchlamp.org/projects/aeron-io/aeron/. CC BY 4.0.
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