# senior-qa

Skill · `skill:senior-qa`

Favz census, built 2026-10-02. Tool names and counts only. No repo names. HTML page: https://favz.co/tools/skill-senior-qa.html

- Repos that have it now: 21
- Repos that ever had it: 26
- Still have it: 81%
- Share of census repos with any tool: 0.04%

## Repos with it, by month

From commit dates in each repo's history. The last few days always look low, because repos found later fill them in.

| Month | Repos at month end |
|---|---|
| 2025-08 | 1 |
| 2025-12 | 2 |
| 2026-01 | 6 |
| 2026-02 | 8 |
| 2026-03 | 12 |
| 2026-04 | 16 |
| 2026-05 | 17 |
| 2026-06 | 19 |
| 2026-07 | 18 |
| 2026-08 | 19 |
| 2026-09 | 21 |

## Goes with

Tools found in the same repos, ranked by lift: 3× means the two show up together three times as often as chance would give. Only pairs sharing 5 or more repos.

| Tool | Kind | Repos with both | Lift |
|---|---|---|---|
| [senior-security](https://favz.co/tools/skill-senior-security.md) | Skill | 12 | 1385.5× |
| [senior-devops](https://favz.co/tools/skill-senior-devops.md) | Skill | 11 | 1209.6× |
| [senior-fullstack](https://favz.co/tools/skill-senior-fullstack.md) | Skill | 13 | 882.9× |
| [product-manager-toolkit](https://favz.co/tools/skill-product-manager-toolkit.md) | Skill | 7 | 702.8× |
| [senior-backend](https://favz.co/tools/skill-senior-backend.md) | Skill | 11 | 668.4× |
| [senior-architect](https://favz.co/tools/skill-senior-architect.md) | Skill | 12 | 602.4× |
| [content-creator](https://favz.co/tools/skill-content-creator.md) | Skill | 7 | 598.7× |
| [ui-design-system](https://favz.co/tools/skill-ui-design-system.md) | Skill | 10 | 592.1× |
| [app-store-optimization](https://favz.co/tools/skill-app-store-optimization.md) | Skill | 5 | 577.3× |
| [web-performance-optimization](https://favz.co/tools/skill-web-performance-optimization.md) | Skill | 6 | 554.2× |
| [senior-frontend](https://favz.co/tools/skill-senior-frontend.md) | Skill | 10 | 524.8× |
| [code-review-excellence](https://favz.co/tools/skill-code-review-excellence.md) | Skill | 6 | 513.1× |