# principle-subtract-before-you-add

Skill · `skill:principle-subtract-before-you-add`

Favz census, built 2026-10-25. Tool names and counts only. No repo names. HTML page: https://favz.co/tools/skill-principle-subtract-before-you-add.html

- Repos that have it now: 21
- Repos that ever had it: 22
- Still have it: 95%
- Share of census repos with any tool: 0.02%

## 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 |
|---|---|
| [2026-08](https://favz.co/months/#2026-08) | 1 |
| [2026-09](https://favz.co/months/#2026-09) | 9 |
| [2026-10](https://favz.co/months/#2026-10) | 21 |

Each linked month leads to what else people first added that month. All months: https://favz.co/months/index.md

## 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 |
|---|---|---|---|
| [principle-laziness-protocol](https://favz.co/tools/skill-principle-laziness-protocol.md) | Skill | 18 | 5686.7× |
| [principle-prove-it-works](https://favz.co/tools/skill-principle-prove-it-works.md) | Skill | 20 | 5528.7× |
| [principle-boundary-discipline](https://favz.co/tools/skill-principle-boundary-discipline.md) | Skill | 18 | 5428.2× |
| [principle-encode-lessons-in-structure](https://favz.co/tools/skill-principle-encode-lessons-in-structure.md) | Skill | 16 | 5307.5× |
| [principle-sequence-verifiable-units](https://favz.co/tools/skill-principle-sequence-verifiable-units.md) | Skill | 16 | 5307.5× |
| [principle-type-system-discipline](https://favz.co/tools/skill-principle-type-system-discipline.md) | Skill | 17 | 5126.6× |
| [principle-fix-root-causes](https://favz.co/tools/skill-principle-fix-root-causes.md) | Skill | 16 | 5054.8× |
| [interrogate](https://favz.co/tools/skill-interrogate.md) | Skill | 14 | 4221.9× |
| [no-comments](https://favz.co/tools/skill-no-comments.md) | Skill | 12 | 3461.4× |
| [bro](https://favz.co/tools/skill-bro.md) | Skill | 13 | 3317.2× |
| [how](https://favz.co/tools/skill-how.md) | Skill | 12 | 2843.3× |
| [arena](https://favz.co/tools/skill-arena.md) | Skill | 12 | 2745.3× |