# vertical-slice

Skill · `skill:vertical-slice`

Favz census, built 2026-10-04. Tool names and counts only. No repo names. HTML page: https://favz.co/tools/skill-vertical-slice.html

- Repos that have it now: 38
- Repos that ever had it: 42
- Still have it: 90%
- 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 |
|---|---|
| 2026-04 | 1 |
| 2026-05 | 13 |
| 2026-06 | 23 |
| 2026-07 | 30 |
| 2026-08 | 33 |
| 2026-09 | 38 |

## 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 |
|---|---|---|---|
| [create-control-manifest](https://favz.co/tools/skill-create-control-manifest.md) | Skill | 22 | 1565.2× |
| [propagate-design-change](https://favz.co/tools/skill-propagate-design-change.md) | Skill | 22 | 1565.2× |
| [review-all-gdds](https://favz.co/tools/skill-review-all-gdds.md) | Skill | 22 | 1565.2× |
| [test-evidence-review](https://favz.co/tools/skill-test-evidence-review.md) | Skill | 22 | 1565.2× |
| [test-flakiness](https://favz.co/tools/skill-test-flakiness.md) | Skill | 22 | 1565.2× |
| [test-helpers](https://favz.co/tools/skill-test-helpers.md) | Skill | 22 | 1565.2× |
| [day-one-patch](https://favz.co/tools/skill-day-one-patch.md) | Skill | 21 | 1538.0× |
| [team-live-ops](https://favz.co/tools/skill-team-live-ops.md) | Skill | 21 | 1538.0× |
| [regression-suite](https://favz.co/tools/skill-regression-suite.md) | Skill | 22 | 1521.7× |
| [soak-test](https://favz.co/tools/skill-soak-test.md) | Skill | 22 | 1521.7× |
| [story-readiness](https://favz.co/tools/skill-story-readiness.md) | Skill | 22 | 1521.7× |
| [asset-spec](https://favz.co/tools/skill-asset-spec.md) | Skill | 21 | 1452.5× |