taosdata/TDengine
What happens to a stranger's pull request here, in the Porchlamp snapshot of 17 October 2026.
Outside pull requests to taosdata/TDengine got a first human reply in a median of 44.9 hours (123 pull requests, 18 April to 15 October 2026); 20% got none within 14 days. It ranks 2,104 of 3,219 overall. For first-time contributors it ranks 1,114 of 1,525 (the bottom 28%).
| Rank | 2,104 of 3,219 |
|---|---|
| Score | 46.23 |
| Tier | C |
| Median first reply | 44.9 hours |
| 14-day no-reply share | 20% |
| First-timer rank | 1,114 of 1,525 |
| Ecosystem | C and C++ |
| Window | 18 April to 15 October 2026 |
Composite
- Rank
- 2,104 of 3,219
- Score
- 46.23
- Tier
- C
- Coverage
- 88% · Ceiling A
- Quadrant
- Nursery
Coordinates: leverage 39.0 (coverage 100%), friction 48.2 (coverage 80%)
Five pillars
| Pillar | Score | Coverage |
|---|---|---|
| Responsiveness | 67.3 | 80% |
| Criticality | 44.8 | 100% |
| Governance | 29.5 | 100% |
| Rigor | 35.7 | 100% |
| Accessibility | 46.5 | 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. | 97.5% | 100.0 | 157 | 18 April to 17 July 2026 | primaryraw/pr_window/taosdata__TDengine.json |
| PR Ghost Rate (14d)Share of outside pull requests with no maintainer response, merge or close within 14 days. | 19.6% | 60.8 | 153 | 20 April to 17 October 2026 | primaryraw/pr_window/taosdata__TDengine.json |
| First-timer Merge RateShare of first-time outside authors' decided pull requests that were merged. | Not shown: Collector failure | ||||
| Time to First ResponseMedian hours from an outside pull request opening to its first substantive human reply. | 44.9 hours (1.9 days) | 52.4 | 123 | 18 April to 15 October 2026 | primaryraw/pr_window/taosdata__TDengine.json |
| Time to Merge (p90)Hours within which 90% of merged outside pull requests were merged. | 503.3 hours (21 days) | 39.6 | 138 | 18 April to 15 October 2026 | primaryraw/pr_window/taosdata__TDengine.json |
Criticality
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| DependentsPackages in the registry that depend on this project, counted once each. | Not shown: Not applicable | ||||
| 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. | 0.4476 | 44.8 | — | — | proxy:no_dependents_signalraw/github_meta/taosdata__TDengine.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 | 984 | — | primaryraw/commits_365d/taosdata__TDengine.json |
| Legal IP RegimeThe contributor licence regime: DCO, none, a foundation CLA or a corporate CLA. | Company CLA | 25.0 | — | — | primaryraw/governance/taosdata__TDengine.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/taosdata__TDengine.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/taosdata__TDengine.json |
| Pipeline DefensesHow well the project's build and review pipeline defends against bad changes, 0 to 100. | 52.5 | 52.5 | — | — | primaryraw/scorecard/taosdata__TDengine.json |
| Substantive Review RateShare of decided pull requests that received a substantive review. | 7.2% | 9.0 | 223 | 18 April to 15 October 2026 | primaryraw/pr_window/taosdata__TDengine.json |
Accessibility
| Parameter | Value | Score | Count | Window | Source |
|---|---|---|---|---|---|
| Developer ExperienceDeveloper experience, 0 to 100: half CI run time, half setup signals. | 85 | 85.0 | 30 | — | primaryraw/actions_runs/taosdata__TDengine.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. | 3 | 30.0 | — | — | primaryraw/gfi/taosdata__TDengine.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 | 2,104 of 3,219 | 46.23 | C | Rated |
| First-timer | 1,114 of 1,525 | 49.96 | C | 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 | 2,662 of 3,696 | 43.97 | C | Rated |
Integrity
- Snapshot
- 2026-10-17
- Raw hash
- 69f7e12fcecd1cf3a10d52ecc0ad15b3c77fbbfa931ded21178f1dacae9a74cf
closed_unread
The full record is in data/2026-10-17/repos/c1.json, under the key taosdata/TDengine.
How every number is measured: Porchlamp methodology.
Open an issue about this record and say what looks wrong.
Porchlamp (2026). taosdata/TDengine. Snapshot 2026-10-17. https://porchlamp.org/projects/taosdata/tdengine/. CC BY 4.0.
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