# solid

Skill · `skill:solid`

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

- Repos that have it now: 30
- Repos that ever had it: 31
- Still have it: 97%
- Share of census repos with any tool: 0.06%

## 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 |
|---|---|
| 2026-03 | 1 |
| 2026-06 | 2 |
| 2026-07 | 3 |
| 2026-08 | 6 |
| 2026-09 | 30 |

## 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 |
|---|---|---|---|
| [technical-writing-style](https://favz.co/tools/skill-technical-writing-style.md) | Skill | 24 | 1436.8× |
| [python-development](https://favz.co/tools/skill-python-development.md) | Skill | 24 | 1385.5× |
| [code-review-expert](https://favz.co/tools/skill-code-review-expert.md) | Skill | 24 | 1337.7× |
| [product-capability](https://favz.co/tools/skill-product-capability.md) | Skill | 24 | 969.8× |
| [simplify](https://favz.co/tools/skill-simplify.md) | Skill | 24 | 705.3× |
| [search-first](https://favz.co/tools/skill-search-first.md) | Skill | 24 | 562.2× |
| [eval-harness](https://favz.co/tools/skill-eval-harness.md) | Skill | 24 | 531.4× |
| [backend-patterns](https://favz.co/tools/skill-backend-patterns.md) | Skill | 24 | 451.1× |
| [tdd-workflow](https://favz.co/tools/skill-tdd-workflow.md) | Skill | 24 | 233.7× |
| [security-review](https://favz.co/tools/skill-security-review.md) | Skill | 24 | 156.4× |

## Comes in the same pack

16 tools almost never appear without this one. Most likely people copy them in together.

- [doc-drift](https://favz.co/tools/skill-doc-drift.md)
- [dry](https://favz.co/tools/skill-dry.md)
- [rest-api-design](https://favz.co/tools/skill-rest-api-design.md)
- [yagni](https://favz.co/tools/skill-yagni.md)
- [architecture-documentation](https://favz.co/tools/skill-architecture-documentation.md)
- [anti-hardcode](https://favz.co/tools/skill-anti-hardcode.md)
- [config-schema-migration](https://favz.co/tools/skill-config-schema-migration.md)
- [data-modeling-analysis](https://favz.co/tools/skill-data-modeling-analysis.md)
- [documentation-criteria](https://favz.co/tools/skill-documentation-criteria.md)
- [extermination-mode](https://favz.co/tools/skill-extermination-mode.md)
- [fail-fast](https://favz.co/tools/skill-fail-fast.md)
- [flext-development](https://favz.co/tools/skill-flext-development.md)
- [implementation-plan-review](https://favz.co/tools/skill-implementation-plan-review.md)
- [python-parallelization](https://favz.co/tools/skill-python-parallelization.md)
- [ssot](https://favz.co/tools/skill-ssot.md)
- [workspace-toolchain](https://favz.co/tools/skill-workspace-toolchain.md)