# principle-type-system-discipline

Skill · `skill:principle-type-system-discipline`

Favz census, built 2026-10-25. Tool names and counts only. No repo names. HTML page: https://favz.co/tools/skill-principle-type-system-discipline.html

- Repos that have it now: 22
- Repos that ever had it: 23
- Still have it: 96%
- 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) | 3 |
| [2026-09](https://favz.co/months/#2026-09) | 9 |
| [2026-10](https://favz.co/months/#2026-10) | 22 |

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 | 5428.2× |
| [principle-encode-lessons-in-structure](https://favz.co/tools/skill-principle-encode-lessons-in-structure.md) | Skill | 17 | 5382.9× |
| [principle-prove-it-works](https://favz.co/tools/skill-principle-prove-it-works.md) | Skill | 20 | 5277.4× |
| [principle-subtract-before-you-add](https://favz.co/tools/skill-principle-subtract-before-you-add.md) | Skill | 17 | 5126.6× |
| [interrogate](https://favz.co/tools/skill-interrogate.md) | Skill | 14 | 4030.0× |
| [no-comments](https://favz.co/tools/skill-no-comments.md) | Skill | 12 | 3304.1× |
| [how](https://favz.co/tools/skill-how.md) | Skill | 13 | 2940.3× |
| [blast-radius](https://favz.co/tools/skill-blast-radius.md) | Skill | 15 | 2499.8× |
| [bro](https://favz.co/tools/skill-bro.md) | Skill | 10 | 2435.7× |
| [why](https://favz.co/tools/skill-why.md) | Skill | 13 | 2421.4× |
| [arena](https://favz.co/tools/skill-arena.md) | Skill | 11 | 2402.1× |
| [typescript-best-practices](https://favz.co/tools/skill-typescript-best-practices.md) | Skill | 16 | 2111.0× |

## Comes in the same pack

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

- [principle-boundary-discipline](https://favz.co/tools/skill-principle-boundary-discipline.md)
- [principle-fix-root-causes](https://favz.co/tools/skill-principle-fix-root-causes.md)
- [principle-sequence-verifiable-units](https://favz.co/tools/skill-principle-sequence-verifiable-units.md)