mosaicml/composer
What happens to a stranger's pull request here, in the Porchlamp snapshot of 17 October 2026.
For mosaicml/composer, the reply time and the share with no reply within 14 days both have too small a sample to measure (0 and 7 pull requests counted; 10 needed). It ranks 2,741 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 | 2,741 of 3,219 |
|---|---|
| Score | 39.18 |
| Tier | D |
| Median first reply | — |
| 14-day no-reply share | — |
| First-timer rank | This repository does not show a low enough barrier for a first-time contributor. |
| Ecosystem | Python |
| Window | — |
Composite
- Rank
- 2,741 of 3,219
- Score
- 39.18
- Tier
- D
- Coverage
- 66% · Ceiling B
- Quadrant
- Graveyard
Coordinates: leverage 45.7 (coverage 84%), friction 64.0 (coverage 47%)
Five pillars
| Pillar | Score | Coverage |
|---|---|---|
| Responsiveness | 20.8 | 20% |
| Criticality | 30.5 | 100% |
| Governance | 64.2 | 65% |
| Rigor | 58.6 | 70% |
| Accessibility | 31.5 | 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. | 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. | 16.7% | 20.8 | 6 | — | primaryraw/author_history/mosaicml__composer.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. | Not shown: Insufficient sample size | ||||
Criticality
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| DependentsPackages in the registry that depend on this project, counted once each. | 4 | 43.3 | — | — | primaryraw/dependents/mosaicml__composer.json |
| Monthly DownloadsDownloads from the package registry in a month. | 8,586 downloads a month | 27.3 | — | — | primaryraw/downloads/pypi__composer.json |
| OpenSSF CriticalityOpenSSF criticality score from 0 to 1, computed from the project's public activity signals. | 0.1815 | 18.1 | — | — | primaryraw/github_meta/mosaicml__composer.json |
Governance
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Elephant FactorThe fewest organisations that account for half of the last year's commits. | Not shown: Insufficient sample size | ||||
| 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/mosaicml__composer.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/mosaicml__composer.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/mosaicml__composer.json |
| Pipeline DefensesHow well the project's build and review pipeline defends against bad changes, 0 to 100. | 72.5 | 72.5 | — | — | primaryraw/scorecard/mosaicml__composer.json |
| Substantive Review RateShare of decided pull requests that received a substantive review. | Not shown: Insufficient sample size | ||||
Accessibility
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Developer ExperienceDeveloper experience, 0 to 100: half CI run time, half setup signals. | 85 | 85.0 | 6 | — | primaryraw/actions_runs/mosaicml__composer.json |
| Newcomer ConversionShare of first-time authors whose first pull request merged within 180 days. | 20.0% | 40.0 | 5 | — | primaryraw/author_history/mosaicml__composer.json |
| Newcomer Issue SupplyOpen, unassigned, up-to-date issues marked for newcomers. | 0 | 0.0 | — | — | primaryraw/gfi/mosaicml__composer.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 | 2,741 of 3,219 | 39.18 | D | Rated |
| First-timer | This repository does not show a low enough barrier for a first-time contributor. | |||
| Career capital | This repository's production-criticality signal is not yet high enough for career-capital ranking. | |||
| Senior systems | 1,000 of 1,276 | 43.14 | C | Rated |
| AI-assisted | 2,724 of 3,696 | 43.55 | C | Rated |
Integrity
- Snapshot
- 2026-10-17
- Raw hash
- 1bab9a097bcd21706c91cb42a909dadc350e9202eedb0eba7f17135d70db2080
No suspicion flags on this repository.
The full record is in data/2026-10-17/repos/86.json, under the key mosaicml/composer.
How every number is measured: Porchlamp methodology.
Open an issue about this record and say what looks wrong.
Porchlamp (2026). mosaicml/composer. Snapshot 2026-10-17. https://porchlamp.org/projects/mosaicml/composer/. CC BY 4.0.
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