# semgrep-rule-creator

Skill · `skill:semgrep-rule-creator`

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

- Repos that have it now: 20
- Repos that ever had it: 21
- 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 |
|---|---|
| 2026-02 | 1 |
| 2026-03 | 8 |
| 2026-04 | 11 |
| 2026-05 | 13 |
| 2026-06 | 15 |
| 2026-07 | 18 |
| 2026-08 | 19 |
| 2026-09 | 20 |

## 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 |
|---|---|---|---|
| [audit-context-building](https://favz.co/tools/skill-audit-context-building.md) | Skill | 19 | 3745.5× |
| [variant-analysis](https://favz.co/tools/skill-variant-analysis.md) | Skill | 18 | 3702.6× |
| [sharp-edges](https://favz.co/tools/skill-sharp-edges.md) | Skill | 19 | 3595.6× |
| [ask-questions-if-underspecified](https://favz.co/tools/skill-ask-questions-if-underspecified.md) | Skill | 16 | 3291.2× |
| [differential-review](https://favz.co/tools/skill-differential-review.md) | Skill | 18 | 3041.4× |
| [skill-improver](https://favz.co/tools/skill-skill-improver.md) | Skill | 15 | 2365.6× |
| [context-degradation](https://favz.co/tools/skill-context-degradation.md) | Skill | 10 | 2365.6× |
| [binary-analysis-patterns](https://favz.co/tools/skill-binary-analysis-patterns.md) | Skill | 10 | 2252.9× |
| [on-call-handoff-patterns](https://favz.co/tools/skill-on-call-handoff-patterns.md) | Skill | 10 | 2150.5× |
| [postmortem-writing](https://favz.co/tools/skill-postmortem-writing.md) | Skill | 10 | 2150.5× |
| [protocol-reverse-engineering](https://favz.co/tools/skill-protocol-reverse-engineering.md) | Skill | 10 | 2150.5× |
| [ai-agents-architect](https://favz.co/tools/skill-ai-agents-architect.md) | Skill | 9 | 2129.0× |