slackhq/nebula
What happens to a stranger's pull request here, in the Porchlamp snapshot of 17 October 2026.
Outside pull requests to slackhq/nebula got a first human reply in a median of 6.8 days (35 pull requests, 10 April to 7 October 2026); 75% got none within 14 days. It ranks 2,296 of 3,219 overall. It is not ranked for first-time contributors: this repository does not show a low enough barrier for a first-time contributor.
| Rank | 2,296 of 3,219 |
|---|---|
| Score | 44.49 |
| Tier | C |
| Median first reply | 6.8 days (162.2 hours) |
| 14-day no-reply share | 75% |
| First-timer rank | This repository does not show a low enough barrier for a first-time contributor. |
| Ecosystem | Go |
| Window | 10 April to 7 October 2026 |
Composite
- Rank
- 2,296 of 3,219
- Score
- 44.49
- Tier
- C
- Coverage
- 98% · Full
- Quadrant
- Crucible
Coordinates: leverage 52.0 (coverage 100%), friction 63.1 (coverage 97%)
Five pillars
| Pillar | Score | Coverage |
|---|---|---|
| Responsiveness | 34.9 | 100% |
| Criticality | 62.4 | 100% |
| Governance | 38.3 | 100% |
| Rigor | 43.7 | 100% |
| Accessibility | 39.7 | 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. | 90.0% | 100.0 | 10 | 10 April to 9 July 2026 | primaryraw/pr_window/slackhq__nebula.json |
| PR Ghost Rate (14d)Share of outside pull requests with no maintainer response, merge or close within 14 days. | 75.0% | 0.0 | 20 | 20 April to 17 October 2026 | primaryraw/pr_window/slackhq__nebula.json |
| First-timer Merge RateShare of first-time outside authors' decided pull requests that were merged. | 27.8% | 34.7 | 18 | — | primaryraw/author_history/slackhq__nebula.json |
| Time to First ResponseMedian hours from an outside pull request opening to its first substantive human reply. | 162.2 hours (6.8 days) | 6.1 | 35 | 10 April to 7 October 2026 | primaryraw/pr_window/slackhq__nebula.json |
| Time to Merge (p90)Hours within which 90% of merged outside pull requests were merged. | 1169.8 hours (48.7 days) | 11.3 | 28 | 10 April to 7 October 2026 | primaryraw/pr_window/slackhq__nebula.json |
Criticality
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| DependentsPackages in the registry that depend on this project, counted once each. | 395 | 76.9 | — | — | primaryraw/dependents/slackhq__nebula.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. | 0.4575 | 45.8 | — | — | primaryraw/github_meta/slackhq__nebula.json |
Governance
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Elephant FactorThe fewest organisations that account for half of the last year's commits. | 2 | 50.0 | 165 | — | primaryraw/commits_365d/slackhq__nebula.json |
| Legal IP RegimeThe contributor licence regime: DCO, none, a foundation CLA or a corporate CLA. | Company CLA | 25.0 | — | — | primaryraw/governance/slackhq__nebula.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/slackhq__nebula.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/slackhq__nebula.json |
| Pipeline DefensesHow well the project's build and review pipeline defends against bad changes, 0 to 100. | 72.5 | 72.5 | — | — | primaryraw/scorecard/slackhq__nebula.json |
| Substantive Review RateShare of decided pull requests that received a substantive review. | 7.3% | 9.2 | 41 | 10 April to 7 October 2026 | primaryraw/pr_window/slackhq__nebula.json |
Accessibility
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Developer ExperienceDeveloper experience, 0 to 100: half CI run time, half setup signals. | 85 | 85.0 | 29 | — | primaryraw/actions_runs/slackhq__nebula.json |
| Newcomer ConversionShare of first-time authors whose first pull request merged within 180 days. | 30.0% | 60.0 | 10 | — | primaryraw/author_history/slackhq__nebula.json |
| Newcomer Issue SupplyOpen, unassigned, up-to-date issues marked for newcomers. | 0 | 0.0 | — | — | primaryraw/gfi/slackhq__nebula.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 | 2,296 of 3,219 | 44.49 | C | Rated |
| First-timer | This repository does not show a low enough barrier for a first-time contributor. | |||
| Career capital | 730 of 798 | 46.87 | C | Rated |
| Senior systems | Fewer than 3 organizations account for most commits (not multi-vendor). | |||
| AI-assisted | 2,612 of 3,696 | 44.48 | C | Rated |
Integrity
- Snapshot
- 2026-10-17
- Raw hash
- dda26ce9a94faea9fe6e2b6bd6b080b21a97706ffeafe6efe3b5228934d16032
No suspicion flags on this repository.
The full record is in data/2026-10-17/repos/67.json, under the key slackhq/nebula.
How every number is measured: Porchlamp methodology.
Open an issue about this record and say what looks wrong.
Porchlamp (2026). slackhq/nebula. Snapshot 2026-10-17. https://porchlamp.org/projects/slackhq/nebula/. CC BY 4.0.
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