karpathy/nanochat
First human reply
40.7 hours
typical wait for an outside pull request, from 24 measured.
What happens to a stranger's pull request here, in the Porchlamp snapshot of 5 November 2026.
Outside pull requests to karpathy/nanochat got a first human reply in a median of 40.7 hours (24 pull requests, 21 April to 18 October 2026); 66% got none within 14 days. It ranks 3,784 of 4,044 overall. It is not ranked for first-time contributors: this repository does not show a low enough barrier for a first-time contributor.
| Rank | 3,784 of 4,044 |
|---|---|
| Score | 38.25 |
| Tier | D |
| Median first reply | 40.7 hours |
| 14-day no-reply share | 66% |
| First-timer rank | This repository does not show a low enough barrier for a first-time contributor. |
| Ecosystem | Python |
| Window | 21 April to 18 October 2026 |
Composite
- Rank
- 3,784 of 4,044
- Score
- 38.25
- Tier
- D
- Coverage
- 68% · Ceiling B
- Quadrant
- Graveyard
Coordinates: leverage 40.6 (coverage 56%), friction 60.3 (coverage 85%)
Five pillars
| Pillar | Score | Coverage |
|---|---|---|
| Responsiveness | 44.3 | 90% |
| Criticality | 33.8 | 35% |
| Governance | 50.5 | 100% |
| Rigor | 45.5 | 60% |
| Accessibility | 12.0 | 50% |
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. | 67.4% | 84.2 | 49 | 21 April to 20 July 2026 | primaryraw/pr_window/karpathy__nanochat.json |
| PR Ghost Rate (14d)Share of outside pull requests with no maintainer response, merge or close within 14 days. | 65.6% | 0.0 | 64 | 27 April to 24 October 2026 | primaryraw/pr_window/karpathy__nanochat.json |
| First-timer Merge RateShare of first-time outside authors' decided pull requests that were merged. | 8.2% | 10.2 | 49 | — | primaryraw/author_history/karpathy__nanochat.json |
| Time to First ResponseMedian hours from an outside pull request opening to its first substantive human reply. | 40.7 hours (1.7 days) | 56.0 | 24 | 21 April to 18 October 2026 | primaryraw/pr_window/karpathy__nanochat.json |
| 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. | Not shown: Third-party data unavailable | ||||
| Monthly DownloadsDownloads from the package registry in a month. | Not shown: Third-party data unavailable | ||||
| OpenSSF CriticalityOpenSSF criticality score from 0 to 1, computed from the project's public activity signals. | 0.3382 | 33.8 | — | — | proxy:no_dependents_signalraw/github_meta/karpathy__nanochat.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 | 356 | — | primaryraw/commits_365d/karpathy__nanochat.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/karpathy__nanochat.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/karpathy__nanochat.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/karpathy__nanochat.json |
| Pipeline DefensesHow well the project's build and review pipeline defends against bad changes, 0 to 100. | Not shown: Insufficient sample size | ||||
| Substantive Review RateShare of decided pull requests that received a substantive review. | 40.7% | 50.9 | 27 | 21 April to 18 October 2026 | primaryraw/pr_window/karpathy__nanochat.json |
Accessibility
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Developer ExperienceDeveloper experience, 0 to 100: half CI run time, half setup signals. | 40 | 40.0 | — | — | proxy:setup_signals_onlyraw/actions_runs/karpathy__nanochat.json |
| Newcomer ConversionShare of first-time authors whose first pull request merged within 180 days. | Not shown: Collector failure | ||||
| Newcomer Issue SupplyOpen, unassigned, up-to-date issues marked for newcomers. | 0 | 0.0 | — | — | primaryraw/gfi/karpathy__nanochat.json |
| Newcomer Return RateShare of those merged first-time authors who sent a second pull request within 90 days. | Not shown: Collector failure | ||||
Persona view
| Persona | Rank | Score | Tier | Status |
|---|---|---|---|---|
| Balanced | 3,784 of 4,044 | 38.25 | 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 | Fewer than 3 organizations account for most commits (not multi-vendor). | |||
| AI-assisted | 3,736 of 4,002 | 40.31 | C | Rated |
Integrity
- Snapshot
- 2026-11-05
- Raw hash
- 49e85813709abe97caa0bf9fabce82f936325625a5b9b75078c418881635489a
closed_unread
The full record is in data/2026-11-05/repos/fc.json, under the key karpathy/nanochat.
How every number is measured: Porchlamp methodology.
Open an issue about this record and say what looks wrong.
Porchlamp (2026). karpathy/nanochat. Snapshot 2026-11-05. https://porchlamp.org/projects/karpathy/nanochat/. CC BY 4.0.
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